We’ve improved the best-selling digital thermostat by combining a single stage, multi-stage and heat pump into one universal thermostat. And better yet we’ve enhanced it with the new styling and home comfort features, specially designed for all systems. It now offers more control, more convenience and more value than the competition. And it’s backed with the reputation of White-Rodgers — pioneers in home comfort since 1937. More Accuracy and Control. If you’re in the process of upgrading a multi

White- Rodgers has been producing energy saving controls for over 60 years. We have been designing and producing the Comfort- Set family of electronic programmable thermostats since 1982. Comfort-Set 90 is the third generation of the electronic programmable family. We believe you will find that the Comfort-Set 90 is the most user friendly and technologically advanced thermostat and humidifier control available today. You will find information about thermostat buttons and display beginning on pag

1 (Blue arrow) Lowers temperature setting (45° F or 7° C minimum) 2 (Red arrow) Raises temperature setting (99° F or 37° C maximum) 3 The multi-color indicator glows: green for 1st stage, yellow for 2ndstage, flashing yellow for 3rd stage, red for emergency heat and flashing red for malfunction condition in system. 4 This button (on top of the cover) lights the display. 5 Used to initiate or review thermostat programming or advance to next program period in programming mode. BACK 6 Used with TIM

More detailed information can be found in the User Manual. The EC2-311 is a dedicated refrigeration controller with superheat control and a driver for an Alco Controls Electric Control Valve EX2. In addition the EC2-311 controls air temperature and manages defrost and fan(s). Network 1 2 3 4 5 6 7 9 8 Two ECN-Pxx pipe temperature sensors (1) and (2) measure saturated suction gas temperatures at the evaporator inlet and outlet and feed the signals into the superheat control loop. The superheat co

(4) ECN-Pxx air-out temperature sensor: Position asymmetric closer to the expansion valve as high as possible. (5) ECN-Fxx fin temperature sensor: Position on the evaporator, asymmetric closer to the expansion valve. Recommendations for mounting the pipe sensor: Insure proper thermal contact by using a metallic pipe clamp or temperature resistant plastic straps. Do not use standard plastic tie wraps (as used for electrical wiring) as they may become loose over time, which could result in faulty

It features a system switch for manual selection of heat -off-cool, a three speed manual fan control switch, an adjustable temperature dial with a 36 to 90°F range, and an indicating thermometer, all combined in one deluxe-styled control. Color-coded leads are provided for connection to field wiring. The thermostat can be wired to perform the following functions: -Thermostat cycles both fan and valve. -Thermostat cycles fan only. -Thermostat cycles valve only. -System switch “OFF” breaks all cir