A new line of RobertshawÂ® programmable thermostats, the 9800i Series, has three programmable thermostat models, which adjust indoor humidity levels manually, or when coupled to an optional outdoor sensor, they adjust the humidity levels automatically. According to the manufacturer, these units help contractors save time by eliminating the need for a separate wall- or furnace-mounted humidistat. The thermostats can display English or Spanish. Model 9801i is compatible with all single-stage 24-VAC heating-cooling systems, including single-stage heat pump systems. Model 9815i is compatible with all 24-VAC heating-cooling systems, up to two-stage heat and two-stage cool units. Model 9820i is compatible with all standard 24-VAC heat pump systems, up to two-stage heat and two-stage cool systems.
Invensys, Climate Controls Americas, 515 South Promenade Ave., Corona, CA 92879; 800-304-6563 or 909-734-2600; 800-426-0804 (fax); www.robertshaw.com.