2006 Commercial Heating Product Review

August 28, 2006
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Addison

Model: TRS total rooftop solution

Footprint (inches): Three sizes that vary depending on configured options selected.

Serviceability features: Hinged, latched access doors with perimeter gaskets, slide-out blower assembly, generous room for accessibility to refrigerant valves, coils, electrical controls, heating section, and compressors.

Technical support: Available at 407-292-4400 from 8 a.m. to 5 p.m. Eastern time and through authorized local service via the nationwide representative network.

Technical support materials: Spec sheets, sell sheets, installation-operation manuals, wiring diagrams, diagnostic tools, and equipment selection software.

Noise-reduction features: Internal vibration isolation for fans and compressors; 1-inch, 4-pound density, closed-cell insulation; and standard double-wall construction.

IAQ equipment supported: Standard stainless steel drain pan. Multiple dehumidification options include methods to treat 100 percent outside air. Filtration options include standard 2- and 4-inch filter rack configurations, which allow for the inclusion of optional high-efficiency cartridge filters.

Thermostat compatibility: PLC based control with terminal strip interface to standard thermostats or building management system.

Replacement parts compatibility: Shares replacement parts.

Additional features: One of the most versatile semicustom commercial rooftop units on the market. Standard features include R-410A; double-wall construction; 4-pound-density, closed-cell insulation; scroll compressors; 2- and 4-inch filters; internal spring isolation; integrated modular starter-control panel; and a PLC based controller. Configured options available for electric, hot water, steam, or gas heat (both staged and modulating), humidity control, 100 percent outside air, heat recovery, building pressurization control, special filtration, high static fan selections, and control flexibility.

Warranty information: One-year parts, five-year compressor.

Special installation requirements: None.

Contact: Addison, Liberty Corner, N.J.; attn: Beth Marotta, 908-604-8686; 908-604-0715 (fax); bmarotta@fedders.com; www.fedders.com.

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Model: VG/WY HG/WY water-source heat pump

Footprint (inches): Manufacturer did not specify.

Serviceability features: Separate compressor compartment allows diagnostics without disturbing airflow. Blower-motor assembly is serviceable without removing ductwork. Smart electronic controller provides diagnostics-fault codes as well as complete safety and operating controls.

Technical support: Available at 407-292-4400 from 8 a.m. to 5 p.m. Eastern time and through authorized local service via nationwide representative network.

Technical support materials: Installation-operation manual, spec sheets, sell sheets.

Noise-reduction features: High-density, closed-cell insulation in compressor compartment and compressor absorbing jacket.

IAQ equipment supported: Standard stainless steel drain pan, humidity control, hot gas reheat, and 2-inch filter options.

Thermostat compatibility: Special thermostats not required.

Replacement parts compatibility: Shares replacement parts.

Additional features: Built specifically to customer project requirements; 100 percent outside air, custom controls, water-side economizers, humidity control, hot gas reheat, hot gas bypass, ground water, corrosion-protection coatings, ground-loop, and water-source application options are available.

Warranty information: One-year parts, five-year compressor.

Special installation requirements: Accessories including host kits, water regulating valves, and thermostats are available.

Contact: Addison, Liberty Corner, N.J.; attn: Beth Marotta, 908-604-8686; 908-604-0715 (fax); bmarotta@fedders.com; www.fedders.com.

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Allied Air Enterprises

Model: Allied Commercial unit heater

Footprint (inches): From 15 by 24 to 41 by 41

Serviceability features: Up to 81 percent AFUE, main shut-off valve, gas pressure regulation, low-voltage terminal strip. Diagnostic LED for troubleshooting, fan timer control; electrical box mounted on the outside of the unit contains all safety controls.

Technical support: Available at 800-448-5872, ext. 2610.

Technical support materials: Engineering handbook, installation instructions, and wiring diagrams available upon request.

Noise-reduction features: Curving design and round surfaces on the heat exchanger minimize air resistance for lower airflow noise. All models come with efficient, quiet-operating, direct-drive fans.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares common parts that are readily available.

Additional features: 24 V controls transformer included. Combination direct-spark ignition-fan timer control. Electronic flame sensor; 24 V redundant gas control valve. Blower motor has sleeve bearings and is thermally protected. Some combustion air inducers rotate 90 degrees to the left or right for installation.

Warranty information: 15-year limited stainless steel heat exchanger, 10-year limited aluminized heater exchanger. One-year all other parts.

Special installation requirements: Horizontal unit heaters are low profile, compact design for installation. Shipped completely assembled with controls factory installed and wired. Hanging brackets shipped loose for field installation. Installer has only to locate unit, hook up unit gas supply and electrical connections, and mount thermostat to complete installation. Unit may be vented horizontally or vertically.

Contact: Allied Air Enterprises, Bellevue, Ohio; attn: Chuck Perry, 419-483-4840; 419-483-3557 (fax); chuck.perry@alliedair.com; www.allied-commercial.com.

eProduct 162



Arcoaire

Model: PGB belt-drive packaged gas-electric unit

Footprint (inches): 47 (w) by 73 (d)

Serviceability features: Prewired for economizer with the connecting plug conveniently located for installation; externally mounted gauge ports allow for more accurate reading of operating conditions while servicing. Electrical and gas controls located behind one exterior panel for easy maintenance. Slide-out blower housing.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at Arcoaire dealer Website (www.arcoairedlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Quiet and efficient operation is provided by belt-driven evaporator fans.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: High- and low-pressure controls provide system protection for extreme cooling operating conditions. Tubular design of heat exchanger delivers efficient heat transfer and airflow; aluminized coating protects against corrosion.

Warranty information: 10-year limited heat exchanger, five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Commercial-strength base rails with built-in rigging capability. Integrated gas control board with diagnostics.

Contact: Arcoaire, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.arcoaire.com.

eProduct 163



Model: PGS packaged gas-electric unit

Footprint (inches): 87 (w) by 58 (d)

Serviceability features: Prewired for economizer with the connecting plug conveniently located for installation; unit has integrated gas control board with diagnostics. Toolless filter access panel enables service. Direct-spark ignition.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at dealer Website (www.arcoairedlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Quiet and efficient operation is provided by belt-driven evaporator fans.

IAQ equipment supported: Accessories include fresh air dampers (manual and motorized).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: Unit features two-stage cooling with scroll compressor on each circuit of 12.5-ton models. High- and low-pressure controls provide system protection for extreme cooling operating conditions. Refrigerant filter-driers are standard to help ensure system cleanliness and meet commercial specifications.

Warranty information: 10-year limited heat exchanger; five-year limited compressor; one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Commercial-strength base rails with built-in rigging capability. Roof penetrations are minimized due to routing pan utility connections (power, control wiring, and gas) through the unit's base. Features part load operation using two stages of cooling. Integrated gas control board with diagnostics.

Contact: Arcoaire, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.arcoaire.com.

eProduct 164



Bard Manufacturing Co.

Model: Quiet Climate 2 wall-mount step-capacity heat pump, CH Series

Footprint (inches): 31 (d) by 84 to 94 (h) by 42 (w)

Serviceability features: All service and maintenance performed outside the building, consuming no interior floor space. Additional service features include multistep-capacity compressor, ventilation package options factory or field installed, multispeed blower motor, high- and low-pressure switches, compressor time delay.

Technical support: Available through local distribution network.

Technical support materials: Service parts guides, wiring diagrams, installation manuals (printed and CD), Website.

Noise-reduction features: Patent-pending "Quiet" technology delivers operating sound levels 20 to 35 times quieter than a standard wall-mount heat pump, said the company. Patent-pending acoustical sound accessories can be added for lower operating sound levels as requirements and budgets dictate.

IAQ equipment supported: A variety of ventilation options are available, including energy recovery ventilator, economizer, and commercial room ventilator.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares standard Bard replacement parts.

Additional features: Most efficient wall-mounted heat pump on the market, the company said, featuring a multistep-capacity compressor with R-410A and special sound-reduction technology. Ideal for new construction, modular applications, school modernization, telecommunication structures, and more.

Warranty information: Five-year parts, five-year compressor.

Special installation requirements: None.

Contact: Bard Manufacturing Co., Bryan, Ohio; attn: Pam Bard Steel, 419-636-1194; 419-636-2640 (fax); bard@bardhvac.com; www.bardhvac.com.

eProduct 165



Bryant Heating and Cooling

Model: 549C heat pump

Footprint (inches): Varies.

Serviceability features: Through-the-bottom power entry, single-point gas and electrical connections, belt-drive indoor fan motors with adjustable pulleys, toolless filter access. Full perimeter base rail with built-in rigging adapters and fork-truck slots.

Technical support: Contact local Bryant distributor.

Technical support materials: Contact local Bryant distributor for pre- and post-sale documentation.

Noise-reduction features: Fully insulated cabinet.

IAQ equipment supported: Exclusive noncorrosive, composite, sloped condensate pan in accordance with ASHRAE 62. Factory-supplied, 2-inch disposable filters accessible through toolless filter access door. Available microprocessor-controlled economizer, two-position damper, and manual outdoor air damper.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Replacement parts are available through a network of part stores and share components with other models in the family.

Additional features: This line of packaged rooftop, ultra-high-efficiency heat pump unit is ideal for both new construction and replacement jobs. Typical applications include school, office, retail, health care, and industrial buildings. Available from 2 to 5 tons using R-22.

Warranty information: Standard one-year parts, five-year compressor motor, 10-year heat exchanger. Optional extended warranties available.

Special installation requirements: Units are single-packaged electric cooling, heat pump units that are prewired and precharged with R-22. The units utilize the same chassis size and footprint design for all four tonnage sizes. They are rated in accordance with ARI Standards 210 (024-060), designed in accordance with Underwriters' Laboratories Standard 1995, and listed by UL and UL Canada.

Contact: Bryant Heating and Cooling; www.bryant.com.

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Model: 581B furnace

Footprint (inches): Varies.

Serviceability features: Through-the-bottom power entry. Single-point gas and electrical connections, belt-drive indoor fan motors with adjustable pulleys, toolless filter access. Full perimeter base rail with built-in rigging adapters and fork-truck slots.

Technical support: Contact local Bryant distributor.

Technical support materials: Contact local Bryant distributor for pre- and post-sale documentation.

Noise-reduction features: Fully insulated cabinet.

IAQ equipment supported: Available with exclusive "Perfect Humidity" dehumidification and subcooling system option. Exclusive noncorrosive composite, sloped condensate pan in accordance with ASHRAE 62. Factory-supplied 2-inch disposable filters accessible through toolless filter access door. Available microprocessor-controlled economizer, two-position damper, and manual outdoor air damper.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Replacement parts, available through a network of part stores, share components with other models in the family.

Additional features: Capable of higher ranges of indoor airflow (vs. static pressure). This line of packaged rooftop high-efficiency gas heating units is ideal for new construction and replacement jobs. Typical applications include school, office, retail, health care, and industrial buildings.

Warranty information: Standard one-year parts, five-year compressor motor, 10-year heat exchanger. Optional extended warranties available.

Special installation requirements: Units are single-packaged electric cooling, gas heating units that are prewired and precharged with R-22. The units are factory tested in heating and cooling modes. They are rated in accordance with ARI Standards 210 (036-074 sizes) and 360 (090-151 sizes), designed in accordance with Underwriters Laboratories Standard 1995, and listed by UL and UL Canada.

Contact: Bryant Heating and Cooling; www.bryant.com.

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Carrier Corp.

Model: Centurion 48/50PG Series furnace

Footprint (inches): 90 by 54 by 43

Serviceability features: Slide-out gas manifold section, front major access with hinged access doors, slide-out condensate pan, slide-out blower-motor assembly, slide-out filter racks, tilt-out economizers, onboard or remote unit diagnostics with text messaging, scrolling marquee display. Units share common design from 2 to 25 tons.

Technical support: Local representatives are available for installation and service needs. Call 800-227-7437 (800-CARRIER) 24 hours a day.

Technical support materials: All literature such as wiring diagrams, service-troubleshooting information, installation data, performance data, parts, and part numbers are available.

Noise-reduction features: Insulated cabinet with scroll compressors internally mounted in dedicated insulated and isolated compartment; low-rpm, permanently lubricated condenser fan motors with precisely balanced prop fans.

IAQ equipment supported: Integrated Humidimizerâ„¢ adaptive dehumidification system, capability for 2- or 4-inch filters, condensate pan internally sloped for full drainage, demand control ventilation (DCV) based on CO2 levels, standard size filters throughout common cabinet sizes, slide-out filter track, factory or field air management systems (economizer, exhaust, etc.).

Thermostat compatibility: No additional interface or special controller required. It is also compatible with Carrier's 3Vâ„¢ packaged control system.

Replacement parts compatibility: Major components such as compressors, fan motors, fan wheels, and electrical relays are shared with other current and long-time built equipment.

Additional features: Units have operating efficiencies up to 14.3 SEER and 12.7 EER, time saving maintenance-service features, and self-diagnostic controls capable of reading system pressures and temperatures without gauges.

Warranty information: Standard 10-year aluminized gas heat exchanger, 15-year stainless steel gas heat exchanger, five-year compressor and electric heat, one-year parts plus an array of extended plans.

Special installation requirements: Units have an array of factory-certified and agency-approved options to reduce installation and startup time.

Contact: Carrier Corp., Indianapolis; attn: Alexis Burnett, 317-240-5204; 860-660-1099 (fax); alexis.burnett@carrier.utc.com; www.carrier.com.

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Century

Model: HLH096B water-source heat pump

Footprint (inches): 36 (w) by 72 (d) by 22 (h)

Serviceability features: Removable panels allow unit to be accessed from multiple sides. Torsion-flex blower mounting system contributes to ease of service. System monitors performance and signals potential unit problems before lockout occurs.

Technical support: Technical support is available at 517-787-2100 weekdays from 8 a.m. to 5 p.m. Eastern time.

Technical support materials: Installation-operation-maintenance manual and replacement parts list available electronically or hard copy.

Noise-reduction features: Double-isolation compressor mounting and torsion-flex motor mounts reduce vibration and its resulting sound; cabinet is fully insulated.

IAQ equipment supported: 2-inch filter available as an option.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Many parts are shared, some are unique.

Additional features: Compact size is ideal for tight spaces or retrofits. Configuration options include supply air location, return entry, and heat exchanger material. Available in a range of voltages. Can be used on all three ARI applications: water loop, ground water, or ground loop. Advanced digital controls include performance monitoring system and unit protection.

Warranty information: Five-year compressor, one-year other parts (see written warranty for limitations).

Special installation requirements: Installation site should include adequate service clearance around unit.

Contact: Century, Jackson, Mich.; attn: Robert Sycks, 517-787-2100; 517-787-9341 (fax); info@heatcontroller.com; www.heatcontroller.com.

eProduct 169



ClimateMaster

Model: Tranquility Series Console, Model TRC water-source heat pump

Footprint (inches): 48 by 12 and 54 by 12.

Serviceability features: Removable cabinet, diagnostic lights, filter-drier, high- and low-pressure service ports, quick-attach wiring harnesses, eight standard safeties including water coil low-temperature sensing, Unit Performance Sentinelâ„¢.

Technical support: Factory support is available Monday through Friday at 405-745-6000 from 8 a.m. to 5 p.m. Central time.

Technical support materials: Installation-operation-maintenance manual; submittal data; CXM/DXM microprocessor controls application manual.

Noise-reduction features: Compressor double isolation system; fully insulated compressor enclosure; ARI 350 sound data.

IAQ equipment supported: Optional MERV 12 pleated filter is available.

Thermostat compatibility: Compatible with most heat pump thermostats.

Replacement parts compatibility: Shares replacement parts with other "EarthPure" units.

Additional features: Uses zero-ozone-depletion refrigerant. Features such as double-isolated compressor mounting make it one of the quietest console units available, the company said. Electronic unit-mounted controls are easy to use and provide accurate room temperature regulation.

Warranty information: Standard one-year parts with extended warranties available.

Special installation requirements: None.

Contact: ClimateMaster, Oklahoma City; attn: Jeff Hammond, 405-745-6000; 405-745-4102 (fax); jhammond@climatemaster.com; www.climatemaster.com.

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Model: Tranquility Series Vertical Stack, Model TRM water-source heat pump

Footprint (inches): 17 by 21

Serviceability features: Removable chassis, diagnostic lights, filter-drier, high- and low-pressure service ports, quick-attach wiring harnesses, eight standard safeties including water coil low-temperature sensing, and Unit Performance Sentinelâ„¢.

Technical support: Factory support is available Monday through Friday at 405-745-6000 from 8 a.m. to 5 p.m. Central time.

Technical support materials: Installation, operation, and maintenance manual; submittal data; CXM/DXM microprocessor controls application manual.

Noise-reduction features: Compressor double-isolation system; fully insulated compressor enclosure; ARI 350 sound data.

IAQ equipment supported: Optional MERV 12 pleated filter is available.

Thermostat compatibility: Compatible with most heat pump thermostats.

Replacement parts compatibility: Shares replacement parts with other "EarthPure" units.

Additional features: Uses zero-ozone-depletion refrigerant. Features such as double-isolated compressor mounting make it one of the quietest water-source heat pumps available. Removable chassis allows for minimum disruption of occupants when spare chassis is ordered.

Warranty information: One-year parts with extended warranties available.

Special installation requirements: None.

Contact: ClimateMaster, Oklahoma City; attn: Jeff Hammond, 405-745-6000; 405-745-4102 (fax); jhammond@climatemaster.com; www.climatemaster.com.

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Comfort-Aire

Model: HLV240A water-source heat pump

Footprint (inches): 29 (w) by 82 (d) by 72 (h)

Serviceability features: Removable panels allow the unit to be accessed from multiple sides. Torsion-flex blower mounting system contributes to ease of service. System monitors performance and signals potential unit problems before lockout occurs.

Technical support: Technical support phone line is available weekdays at 517-787-2100 from 8 a.m. to 5 p.m. Eastern time.

Technical support materials: Installation-operation-maintenance manual and replacement parts list available electronically or hard copy.

Noise-reduction features: Double isolation compressor mounting and torsion-flex motor mounts reduce vibration and its resulting sound; cabinet is fully insulated. Separate compressor and air handler compartments.

IAQ equipment supported: 2-inch filter available as an option.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some shared parts, some unique.

Additional features: Configuration options include supply air location, front or back return, and a variety of discharge locations and heat exchanger material. Advanced digital controls include performance monitoring system and unit protection. Available in wide range of voltages. Can be used in all three ARI applications: water loop, ground water, or ground loop.

Warranty information: Five-year compressor and one-year other parts (see written warranty for limitations).

Special installation requirements: Installation site should include adequate service clearance around unit.

Contact: Comfort-Aire, Jackson, Mich.; attn: Robert Sycks, 517-787-2100; 517-787-9341 (fax); info@heatcontroller.com; www.heatcontroller.com.

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Model: TGR48C packaged heating-cooling unit

Footprint (inches): 48 (w) by 51 (d) by 41 (h)

Serviceability features: Easily accessed blower compartment with slide-out blower. Refrigerant connections conveniently located for service. Easily accessed furnace compartment and control box.

Technical support: Technical support phone line is available weekdays at 517-787-2100 from 8 a.m. to 5 p.m. Eastern time.

Technical support materials: Installation-operation-maintenance manual and replacement parts list available electronically or hard copy.

Noise-reduction features: Scroll compressor and draft inducer motor contribute to quiet operation.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Most parts are shared, some are unique.

Additional features: Enhanced fins on condenser and evaporator coils for better heat transfer; tubular heat exchanger for improved efficiency. Direct-spark ignition and remote flame sensors for added reliability and efficiency. Louvered compartment protects the coil. Multiple features for water management include one-piece top, deep flanges on supply and return air openings.

Warranty information: 10-year heat exchanger, one-year other parts (see written warranty for limitations).

Special installation requirements: Installation site should include adequate service clearance around unit. Most options can be field installed.

Contact: Comfort-Aire, Jackson, Mich.; attn: Robert Sycks, 517-787-2100; 517-787-9341 (fax); info@heatcontroller.com; www.heatcontroller.com.

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Comfortmaker

Model: CHE Series heat pump

Footprint (inches): 33 (w) by 35 (d)

Serviceability features: External high and low refrigerant service ports facilitate servicing. Easy-access service valves on all models.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at dealer Website (www.comfortmakerdlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Features a single high-efficiency scroll compressor for quiet operation. These units are equipped with suction line accumulators that smooth out refrigerant management during mild ambient conditions and then transitions during defrost operation to eliminate sounds associated with the scroll compressors pumping liquid refrigerant.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components of the product are standardized throughout the product line.

Additional features: This 6.3-ton split heat pump features top-discharge air design with a corrosion-resistant grille. Enhanced aluminum fins mechanically bonded to copper tubes provide improved heat transfer. Unit comes with a 0°F low-ambient device. Heavy-duty coil guard is offset to protect coil from accidental damage.

Warranty information: Five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: High- and low-pressure switches, anticycle timer, and crankcase heater help protect the compressor. Electronic defrost control ensures fast, efficient defrost cycle. Thermostatic expansion valve and suction accumulator are standard. Meets ASHRAE 90.1 efficiency standards.

Contact: Comfortmaker, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.comfortmaker.com.

eProduct 174



Model: PHE packaged heat pump series

Footprint (inches): 86 (w) by 83 (d)

Serviceability features: Filter access panel does not require tools. Convertible design for vertical or horizontal supply-return. Prewired for economizer with the connecting plug conveniently located for installation.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at dealer Website (www.comfortmakerdlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Scroll compressors are mounted on vibration isolators. Belt-driven evaporator fans provide quiet operation.

IAQ equipment supported: Accessories include fresh air dampers (manual and motorized).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components of this product are standardized throughout the line.

Additional features: The PHE Series has a convertible design for flexibility of installation on ground or rooftop. It features a state-of-the-art defrost system. Refrigerant filter-driers are standard to help ensure system cleanliness and meet tough commercial specifications.

Warranty information: Five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Meets ASHRAE 90.1 efficiency standards. Unit shipped ready for downflow applications with conversion to horizontal airflow accomplished with accessory horizontal discharge roof curb.

Contact: Comfortmaker, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.comfortmaker.com.

eProduct 175



Daikin AC

Model: VRV REYQ192MTJU ductless heat pump

Footprint (inches): 97 by 30

Serviceability features: Built-in self diagnostics, access panel condensing unit cabinet, vertical discharge air, compact and lightweight, serviceable-washable filters, available with complete diagnostic codes to easily locate and identify faults. Can be Web-enabled and connected to IP addresses for remote monitoring via central control (I-Touch Controller).

Technical support: Service Hotline is available at 972-512-1932 or through local Daikin distributor.

Technical support materials: Factory training required and available locally at Daikin distributors; service and technical manual available via Website includes wiring, troubleshooting information, and parts information.

Noise-reduction features: The outdoor unit has refined aero grille and fan design, thus reducing fan power and sound. It can also have a "Night Quiet" mode, which can lower the sound level by 8 dBa. Indoor unit fan blade edge design drastically reduces sound; indoor units are as low as 29 dBa.

IAQ equipment supported: Optional higher-efficiency air filters are available with varied choice of indoor units.

Thermostat compatibility: Requires an optional wired remote controller or wireless infrared control.

Replacement parts compatibility: Shares replacement parts with other similar-size models. Also shares the same compressors as with smaller sized units as well.

Additional features: Uses four compressors: Two inverter (variable-speed scrolls) and two fixed-speed scrolls automatically vary the heating capacity. Connects up to 20 indoor units per outdoor unit, produces heating for outdoor temperatures as low as 5°F, maintains 65 percent of nominal heating capacity; can be interfaced with electric system and hot water coils.

Warranty information: Six-year compressor, one-year parts, one-year limited labor; extended warranties available.

Special installation requirements: Requires pretraining class for installation and commissioning, R-410A certification; available at Daikin distributors throughout the U.S. and Canada.

Contact: Daikin AC, Carrollton, Texas; attn: Lee Smith, 972-245-1510; 972-245-1038 (fax); lee.smith@daikinac.com; www.daikinac.com.

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Heil

Model: CHE Series 10-ton heat pump

Footprint (inches): 59 (w) by 46 (d)

Serviceability features: Easy-access service valves on all models. Liquid and suction line service valves. Low-voltage control wire terminal block. Externally mounted gauge ports provide serviceability and allow for more accurate reading of operating conditions.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted at dealer Website (www.heildlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Features a single high-efficiency scroll compressor for quiet operation. A suction line accumulator smoothes out refrigerant management during mild ambient conditions and transitions during defrost operation to eliminate sounds associated with the scroll compressor pumping liquid refrigerant. Compressor is mounted on vibration isolators.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: Top-discharge air design with corrosion resistant grille and electronic defrost control. Safety controls include high- and low-pressure switches, anti-cycle timer, crankcase heater, and compressor overload protection. Constructed of prepainted galvanized steel, it has copper tube-aluminum fin outdoor coil construction and PVC-coated steel wire condenser fan guards.

Warranty information: Five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Meets ASHRAE 90.1 efficiency standards.

Contact: Heil, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.heil-hvac.com.

eProduct 177



Model: PGE packaged gas-electric unit

Footprint (inches): 86 (w) by 87 (d) or 86 (w) by 116 (d)

Serviceability features: Unit has integrated gas control board with diagnostics, and comes prewired for economizer with the connecting plug conveniently located for installation. It has toolless filter access panel for service and a TXV refrigerant metering device.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at Heil dealer Website www.heildlr.com includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Quiet and efficient operation is provided by belt-driven evaporator fans.

IAQ equipment supported: Accessories include fresh air dampers (manual and motorized).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: New low-heat models now available. Unit features two-stage cooling with scroll compressor on each circuit. Refrigerant filter-driers are standard to help ensure system cleanliness and meet tough commercial specifications. High- and low-pressure controls provide system protection for extreme cooling operating conditions.

Warranty information: Ten-year limited heat exchanger, five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Roof penetrations are minimized due to routing pan utility connections (power, control wiring, and gas) through the unit's base. Commercial-strength base rails with built-in rigging capability. Features part load operation using two stages of cooling. Integrated gas control board with diagnostics.

Contact: Heil, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.heil-hvac.com.

eProduct 178



ICP Commercial

Model: CHS 15-ton split system heat pump

Footprint (inches): 43 (w) by 77 (d)

Serviceability features: Externally mounted gauge ports provide serviceability and allow for more accurate reading of operating conditions. Easy-access service valves on all models. Liquid line and suction line service valves. Low-voltage control wire terminal block.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at ICP Commercial dealer Website (www.icpcommercialdlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: A suction line accumulator smoothes out refrigerant management during mild ambient conditions and transitions during defrost operation to eliminate sounds associated with the scroll compressor's pumping liquid refrigerant. Compressor is mounted on vibration isolators.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: Safety controls include high-pressure switch, loss of charge switch, crankcase heater, and compressor short cycle protection. Constructed of prepainted galvanized steel, it has copper tube-aluminum fin condenser coils with mechanically bonded plate fins and subcooling.

Warranty information: Five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Manufacturer did not specify.

Contact: ICP Commercial, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.icpcommercial.com.

eProduct 179



Model: PGE packaged gas-electric unit

Footprint (inches): 86 by 116

Serviceability features: Unit has integrated gas control board with diagnostics, and comes prewired for economizer with the connecting plug conveniently located for installation. It has toolless filter access panel for service and a TXV refrigerant metering device.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at ICP Commercial dealer Website (www.icpcommercialdlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Quiet and efficient operation is provided by belt-driven evaporator fans.

IAQ equipment supported: Accessories include fresh air dampers (manual and motorized).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the product line.

Additional features: Unit features two-stage cooling with scroll compressor on each circuit. New low-heat models now available. Refrigerant filter-driers are standard to help ensure system cleanliness and meet tough commercial specifications. High- and low-pressure controls provide system protection for extreme cooling operating conditions.

Warranty information: 10-year limited heat exchanger, five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Roof penetrations are minimized due to routing pan utility connections (power, control wiring, and gas) through the unit's base. Commercial-strength base rails with built-in rigging capability. Features part load operation using two stages of cooling. Integrated gas control board with diagnostics.

Contact: ICP Commercial, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.icpcommercial.com.

eProduct 180



Indeeco

Model: Ultra-safe EXP explosion-proof unit heater

Footprint (inches): 18 by 19 by 16; 18 by 23 by 20; or 20 by 27 by 24

Serviceability features: Field serviceable heat exchanger and fan motor.

Technical support: Available from Monday through Friday at 314-644-4305 from 7:30 a.m. to 5:30 p.m. Central time.

Technical support materials: IOMs shipped with every heater.

Noise-reduction features: Manufacturer did not specify.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Option for adjustable thermostat factory installed.

Replacement parts compatibility: Shared parts.

Additional features: First explosion-proof unit heater available with optional corrosion resistant 316 stainless steel construction. Also available with Heresite coating or epoxy coated. The SST unit is particularly suited for waste water treatment plants while the Heresite-coated option is great for use in chemical plants, said the company.

Warranty information: Manufacturer did not specify.

Special installation requirements: Manufacturer did not specify.

Contact: Indeeco, St. Louis, Mo.; attn: Dan Jackson, 314-644-4305; 314-644-5332 (fax); sales@indeeco.com; www.indeeco.com.

eProduct 181



Laars Heating Systems

Model: Rheos RHCH and RHCV boiler and water heater

Footprint (inches): 1,898 sq inches

Serviceability features: Controls are at eye level. Room inside the unit to access parts. All components can be accessed from front or back. Designed with access panels for service or inspection.

Technical support: Available at 800-900-9276 from 6 a.m. to 4 p.m. Pacific time.

Technical support materials: Wiring diagrams, typical piping diagrams, parts lists, installation manuals, submittal documents, all readily available.

Noise-reduction features: Well-insulated sealed combustion, very quiet combustion fan.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some parts are shared, others vary by size.

Additional features: This is a rugged, quiet unit that is easy to use and to set up. It has been designed with installation and service in mind, and uses known, proven technology.

Warranty information: 10-year heat exchanger.

Special installation requirements: Manufacturer did not specify.

Contact: Laars Heating Systems, Simi Valley, Calif.; attn: Paula Dolan, 805-579-5200, ext. 242; 805-579-5209 (fax); pdolan@laars.com; www.laars.com.

eProduct 182



Model: Rheos+ RHHH and RHHV boiler and water heater

Footprint (inches): 1,898 sq inches

Serviceability features: Controls are at eye level. Room inside the unit to access parts. All components can be accessed from front or back. Designed with access panels for service or inspection.

Technical support: Available at 800-900-9276 from 6 a.m. to 4 p.m. Pacific time.

Technical support materials: Wiring diagrams, typical piping diagrams, parts lists, installation manuals, submittal documents, all readily available.

Noise-reduction features: Well-insulated sealed combustion, very quiet combustion fan. Very quiet unit.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Some parts are shared, others vary by size.

Additional features: This condensing boiler is rugged, quiet, and easy to use and to set up. It has been designed with installation and service in mind, and uses known, proven technology.

Warranty information: 10-year heat exchanger.

Special installation requirements: Manufacturer did not specify.

Contact: Laars Heating Systems, Simi Valley, Calif.; attn: Paula Dolan, 805-579-5200, ext. 242; 805-579-5209 (fax); pdolan@laars.com; www.laars.com.

eProduct 183



Lennox Industries

Model: LF24 unit heaters

Footprint (inches): From 15 by 24 to 41 by 41

Serviceability features: The entire burner assembly can be removed in one piece for ease of service. The wiring junction box is located on the side of the cabinet for access. Box contains all electrical and safety controls.

Technical support: Available at 800-453-6669 (800-4-LENNOX) from 6:30 a.m. to 6:30 p.m. Central time

Technical support materials: Engineering handbook, installation instructions, wiring diagrams, product brochures are all available immediately.

Noise-reduction features: The range of unit heaters has dynamically balanced direct drive propeller fans for quiet, smooth operation. Heated air flows smoothly across the tubular heat exchangers and is directed into the heated space by aerodynamic louvers.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Shares replacement parts and many components are commonly available.

Additional features: Tubular heat exchangers are constructed of aluminized or stainless steel for superior resistance to corrosion and oxidation. Rounded tubular heat exchange surfaces promote excellent heat transfer while creating less airflow resistance and great throw distance of heated air. Compact design reduces space

requirements. Units can be vented vertically or horizontally.

Warranty information: 15-year limited stainless steel heat exchanger, 10-year limited aluminized heat exchanger, one-year limited covered components.

Special installation requirements: 3/8-inch spot-nuts are located on the top of the cabinet for suspending units for installation. Single-fan models have two-point suspension while two-fan models have four-point suspensions.

Contact: Lennox Industries, Dallas; attn: Larry Wei, 972-497-5000; 972-497-6999 (fax); larry.wei@lennoxind.com; www.lennox.com.

eProduct 184



Marvair

Model: Scholar III heat pump, Model VAIA

Footprint (inches): 48 by 30

Serviceability features: All service is from the front. A single hinged door provides service access.

Technical support: Call 800-841-7854, ext. 146 or 113, during normal working hours. For afterhours and weekend service, call the service pager at 800-204-8210, enter your number (including extension, if any), and a representative will respond shortly.

Technical support materials: Wiring diagrams, installation manual, service and maintenance manual. Service schools are periodically held at the factory and at customers' premises.

Noise-reduction features: Double-wall panels with 1-1/4-inch insulation between the two panels, perforated interior panel, and insulation function as an array of Helmholtz resonators; low-vibration scroll compressor; electronically commutated indoor air motor ensures constant airflow.

IAQ equipment supported: Designed to bring up to 450 cfm into the classroom. GreenWheel ERV, motorized dampers, hot gas reheat, electric reheat.

Thermostat compatibility: Compatible with most heat pump thermostats. Optimal performance with the Mar5000 thermostat controller.

Replacement parts compatibility: Most components are shared.

Additional features: Designed from the onset for quiet operation and high efficiency. With the proper installation, sound levels of 45 dBa or less in a free blow (not ducted) can be obtained. Humidity control with dual compressors.

Warranty information: One-year parts, five-year compressor.

Special installation requirements: Complete installation manual available.

Contact: Marvair, Cordele, Ga.; attn: Bill Wilson, 229-273-3636; 229-273-5154 (fax); bwilson@airxcel.com; www.marvair.com.

eProduct 185



Mitsubishi Electric

Model: City Multi R2 Series PURY-P126/144/168/192/204/216/234TGMU-A ductless heat pump

Footprint (inches): 72 by 50 by 33, or 72 by 78 by 33

Serviceability features: Outdoor unit's four-digit display provides a fault code, history, and over 250 items of operation information. "Maintenance Tool" software provides error information communicated over the M-NET communication bus in addition to comprehensive maintenance diagnostic information.

Technical support: Available at 877-391-5550 from 8 a.m. to 7 p.m. Eastern time.

Technical support materials: Diagrams; engineering manuals; installation, operating and service manuals; system and component submittals; and guide specifications all available at www.mehvac.com. Other resources include installation and service course, and Maintenance Tool.

Noise-reduction features: Outdoor unit operated at 63 dBa due to frequency modulation of the inverter-driven scroll compressor. A field-selectable option is the night mode, which drops sound levels even further.

IAQ equipment supported: The system addresses specific IAQ concerns per zone rather than as a building-wide solution. Provided are features like dry mode and a ventilation air connection, plus the ability to tie communications directly into Lossnay energy recovery ventilators for a customized building IAQ comfort solution.

Thermostat compatibility: Specific controllers allow for zone-by-zone, complete system, building, and campus-wide control capabilities. Enhanced features (beyond standard thermostat) include set temperature limiting, airflow speed and direction, ventilation (ERV) control, error code monitoring, and multilingual display.

Replacement parts compatibility: Shares parts.

Additional features: VRFZ and inverter heat pump technology provide optimal heating performance plus a building zone comfort solution supporting simultaneous heating and cooling, the company said. Connects up to 32 indoor units with a combined total connected capacity of 150 percent. Two-pipe connections allow for speedier installation; modular approach provides design flexibility.

Warranty information: Limited six-year compressor; one-year parts and defects (five-year parts for factory-trained Mitsubishi City Multi Diamond Dealer when project is designed by Mitsubishi Diamond Designed and a commissioning report is completed).

Special installation requirements: Two pipes speed up installation time, the company said; two-wire nonpolar for controller connections; specific zone needs can be addressed; should be considered for retrofit applications and new construction; requires less ductwork; design tool available to assist in system layout.

Contact: Mitsubishi Electric, Suwanee, Ga.; attn: D. Michael Smith, 800-687-1966; 800-658-1458 (fax); msmith@hvac.mea.com; www.mehvac.com.

eProduct 186



Model: Mr. Slim P Series system PLA-A42AA/PUZA42NHA ductless heat pump

Footprint (inches): 12 by 33 by 33 (outdoor unit)

Serviceability features: New hard-wired, multilingual remote controller (PAR-21MAA) displays fault codes for indoor and outdoor units, service contractor phone number, and unit operating data for service technician. Washable filters speed up routine maintenance; convenient panel locations allow for access to serviceable components; reliable systems mean worry-free maintenance concerns, the company said.

Technical support: Available at 877-391-5550 from 8 a.m. to 7 p.m. Eastern time.

Technical support materials: Diagrams, troubleshooting FAQs, installation instructions, submittals, and spec sheets available at www.mehvac.com.

Noise-reduction features: The design provides reduced outdoor unit sound level by 4 to 8 dBa; inverter-driven compressor quieter due to rotation frequency modulation.

IAQ equipment supported: The indoor model gives special consideration to IAQ, including a special dry operating mode that helps control humidity, a ventilator air connection, and washable long-life air filters.

Thermostat compatibility: Wired remote controller (Mr. Slim P-Series) offers the following enhanced features (beyond thermostat capabilities): dry mode for controlling humidity; powerful mode for rapid setpoint satisfaction; timer functions; set temperature limiting; setting lock; adapter link to Mitsubishi Network (M-Net) for advanced control of multiple systems through the City Multi Controls Network (CMCN).

Replacement parts compatibility: Shares parts.

Additional features: Revolutionary inverter heat pump technology provides greater heating performance than before, allowing the system to be sized to the heat load. The variable nature of this technology allows the system to operate at whatever level is needed to match cooling needs.

Warranty information: Limited six-year compressor; one-year parts and defects (two-year parts for factory-trained Mitsubishi Diamond Dealers).

Special installation requirements: Four-way piping connection (four directions) - front, rear, right, bottom. New A-Control - indoor unit is powered through the outdoor unit. Three polarity-sensitive wires plus ground conductor run from outdoor to indoor unit providing power and communication. Adapter is available to connect to the M-Net and CMCN plus system control via BMS.

Contact: Mitsubishi Electric, Suwanee, Ga.; attn: D. Michael Smith, 800-687-1966; 800-658-1458 (fax); msmith@hvac.mea.com; www.mehvac.com.

eProduct 187



Raypak Inc.

Model: MVB, Models 503-2003 boiler and water heater

Footprint (inches): 26 by 30

Serviceability features: Onboard diagnostics with retrievable fault-history code. All service-repair components are accessible from the front or side, allowing maximum installation flexibility. Heat exchanger uses a straight, copper-fin tube design, proven to be the most reliable, durable, and effective concept, the company said; it limits the effects of erosion corrosion while preventing scale buildup. Low hydraulic pressure drop minimizes pumping requirements; ease of cleaning and inspection; repairable with replaceable components.

Technical support: Contact local representative (listed at www.raypak.com).

Technical support materials: All available from Website document library.

Noise-reduction features: Manufacturer did not specify.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Standard thermostat to call for heat; factory-mounted modulating controller.

Replacement parts compatibility: Shared components.

Additional features: The burner system precisely maintains the proper fuel/air ratio throughout a wide range of gas supply pressures and vent pressures, thereby eliminating the need for fine-tuning to field conditions. The compact design, coupled with very small minimum clearance requirements, facilitates installation in small, tight spaces.

Warranty information: Limited 20-year thermal shock, limited 10-year heat exchanger.

Special installation requirements: Because of the high efficiency level and very small vent diameters, these boilers are rated as Category IV, meaning that they require a sealed vent plus accommodations for removal of condensation that may form in the vent system.

Contact: Raypak Inc., Oxnard, Calif.; attn: Larry Ashton, 805-278-5300; 800-872-9725 (fax); www.raypak.com.

eProduct 188



Reznor/Thomas & Betts Corp.

Model: PreevA Series, Models PDH, SDH, and RDH make-up air system

Footprint (inches): Zero footprint for indoor suspended units. Rooftop units range from 1,800 to 10,800 square inches, depending on optional components.

Serviceability features: Easy swing-out service doors for quick access. All service and vent connections are on the same side. Filter rack arranged for quick replacement. High-quality relays and controls are socketed to facilitate service. Slide-out gas burner.

Technical support: Representatives located throughout North America are available during normal (local) working hours at 800-695-1901. Factory support coordinated through local representative.

Technical support materials: Installation, operation, and maintenance manuals are shipped with the units. These manuals along with wiring diagrams, parts manuals, and all support documents, are available at www.rezspec.com.

Noise-reduction features: Double-wall-insulated cabinets available on base unit and all optional modules. Blower, blower motor, and vent motor are vibration and sound isolated using rubber isolators as standard equipment.

IAQ equipment supported: Provides up to 100 percent outside air for improved IAQ. Units are available with 1-, 2-, or 4-inch disposable or permanent filters. When ordered with evaporative cooling module, 1- or 2-inch aluminum prefilters are available (rooftop unit Model RDH only).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: TCORE2® heat exchanger and burner system is the same as on Reznor V3® Series unit heater and packaged heating Model LDAP.

Additional features: Offers high-efficiency heating even when the gas input is turned down, the company said. Cooling coils also can provide one- to two-thirds or full capacity when used with the optional integrated controls. The result is a more fuel-efficient unit.

Warranty information: One-year limited. Additional warranty on heat exchanger available for five or 10 years.

Special installation requirements: None.

Contact: Reznor/Thomas & Betts Corp., Memphis, Tenn.; 800-695-1901; 901-252-1305 (fax); hvacadmin@rezspec.com; www.rezspec.com.

eProduct 189



Tempstar

Model: CHE Series 7.5-ton heat pump

Footprint (inches): 33 (w) by 35 (d)

Serviceability features: Externally mounted gauge ports provide serviceability and allow for more accurate reading of operating conditions. Easy-access service valves on all models.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted online at Tempstar dealer Website (www.tempstardlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Built with a single high-efficiency scroll compressor for quiet operation, all models include suction line accumulators regardless of the system refrigerant charge or unit capacity. Accumulators smooth out refrigerant management during mild ambient conditions and then transitions during defrost operation to eliminate sounds associated with scroll compressors pumping liquid refrigerant.

IAQ equipment supported: Manufacturer did not specify.

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the line.

Additional features: Top-discharge design with a corrosion-resistant grille. Enhanced aluminum fins mechanically bonded to copper tubes improve heat transfer. Prepainted fins provide additional corrosion resistance. Its electronic defrost control ensures fast, efficient defrost cycle. It features a thermostatic expansion valve.

Warranty information: Five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Meets ASHRAE 90.1 efficiency standards. High- and low-pressure switches and crankcase heater provide compressor protection.

Contact: Tempstar, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.tempstar.com.

eProduct 190



Model: PGS packaged gas-electric unit

Footprint (inches): 86 (w) by 87 (d)

Serviceability features: Prewired for economizer with the connecting plug conveniently located for installation; unit has integrated gas control board with diagnostics. Toolless filter access panel enables service. Unit has a TXV refrigerant metering device.

Technical support: Factory-trained technical service advisors (TSAs) are on staff at local distributors to provide technical assistance and troubleshooting at the local level.

Technical support materials: Product information posted at dealer Website (www.tempstardlr.com) includes product spec sheets, installation-operation manuals, and technical support-parts manuals. Technical support materials are also available from local distributors.

Noise-reduction features: Quiet and efficient operation is provided by belt-driven evaporator fans.

IAQ equipment supported: Accessories include fresh air dampers (manual and motorized).

Thermostat compatibility: Compatible with most thermostats.

Replacement parts compatibility: Key components are standardized throughout the line.

Additional features: New low-heat models now available. Unit features two-stage cooling with scroll compressor on each circuit. High- and low-pressure controls provide system protection for extreme cooling operating conditions. Refrigerant filter-driers are standard to help ensure system cleanliness and meet commercial specifications.

Warranty information: 10-year limited heat exchanger, five-year limited compressor, one-year limited parts. A HELP® extended service agreement offers a five- and 10-year extended service agreement on parts and labor.

Special installation requirements: Commercial-strength base rails with built-in rigging capability. Roof penetrations are minimized due to routing pan utility connections (power, control wiring, and gas) through the unit's base. Features part-load operation using two stages of cooling. Integrated gas control board with diagnostics.

Contact: Tempstar, Nashville, Tenn.; attn: John Mott, 800-315-4370; 615-383-2215 (fax); john.mott@mottpr.com; www.tempstar.com.

eProduct 191

Publication date: 08/28/2006

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