The 14 SEER Value Series® 14PJL is a residential heat pump. The R-410A unit uses expansion valves with an internal check valve that provides quieter refrigerant metering and a grille/motor mount for quieter fan operation.
The Hilti PD 4 laser range meter delivers highly accurate measurements at the push of a button, says the company. With a sensor-automated backlight and one-button operation for both measuring and tracking functionality, the PD 4 measures distances with laser precision of ±1/12 inch.
The BTU 2000+ gas analyzer can be used for monitoring oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), excess air, and efficiency in a residential or light commercial boiler/burner. According to the manufacturer, the unit is seven instruments in one tool.
The Knight XL™ commercial boiler is a modulating/condensing unit. Features include 94.6 percent thermal efficiency, low NOx emissions, zero clearance to combustible materials, and a fully modulating burner with 5:1 turndown. It is available in five models.
The IntelliCon-FA microprocessor-controlled forced-air heating system fuel economizer modifies the normal burner run patterns, dynamically adjusting the length and number of cycles. According to the manufacturer, the unit has been shown to reduce fuel consumption by an average of 11 percent.
New video training kits are available. The two kits, titled HVACR Electrical Troubleshooting: Deciding Where To Begin and HVACR Electrical Troubleshooting: Component Testing, are designed for service managers who want to facilitate in-house training, and for HVACR instructors.
The AHBV Series of hydronic air handlers utilizes a variable-speed blower motor. It further improves efficiency by adjusting the cfm to match the static pressure of the system, helping to overcome poor duct design and long duct runs.
The helical rotary chiller Model Series RTM RTWD is a 70- to 150-ton screw chiller that provides chilled water for comfort cooling or process applications. With full-load efficiency of 0.67 kW per ton, the chiller minimizes the expense of operating a chilled-water system.
The Estimation™ Logistics 7.3 version of this estimation program offers full integration with the American Contractor™ job cost accounting solution. According to the manufacturer, this integration means an estimator can send an estimate directly to accounting from within the Estimation Logistics program itself.
The P528 family of ceramic capacitive refrigeration pressure sensors are perfectly suited for high-volume applications in refrigeration compressors, rooftop chillers, and refrigerant recovery systems, says the company. The devices feature a brass housing with a 3/4-inch external hex.
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