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2 Heat/1Cool Stage Thermostat with manual changeover and E,O,Y,R,G,X,L,B,W2 terminals for multistage

Price: $139.88 
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SKU: THE841A1217
(See Product Details Below for Manufacturers Part Numbers)
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2 Heat/1Cool Stage Thermostat with manual changeover and E,O,Y,R,G,X,L,B,W2 terminals for multistage heat pumps



Overview



Heat Pump/Multistage Thermostats provide low voltage (24 Vac) control of two-stage heating and one-stage cooling heat pump systems using manual changeover.




Features



Coiled bimetal element operate dust-free mercury switches. Heat anticipators are adjustable or fixed; cooling anticipator is fixed. Mount directly on wall or horizontal outlet box; no separate subbase necessary. T841E model available for two-stage gas valves.




Product Specifications





Application Multistage Heat Pumps


Mounting Horizontal


Changeover Manual


Color Beige


Stages 2 Heat/1 Cool




Terminal Designations W3, R, L, X, W2, G, O, E, Y, B


Switch Positions (Fan) AUTO-ON


Switch Positions (System) EM. HEAT-HEAT-OFF-COOL


Switch Type Mercury


Switching Action 1st Stage SPDT; Second Stage SPST


Accuracy (F) 2 F


Accuracy (C) 1 C


Dimensions (in.) 3 1/2 in. high x 5 1/4 in. wide x 2 1/16 in. deep


Dimensions (mm) 89 mm high x 133 mm wide x 52 mm deep


Setting Temperature Range (F) 45 F to 85 F


Interstage Differential Temperature (F) 1 F


Interstage Differential Temperature (C) 0.6 C


Electrical Ratings 20 to 30 Vac.


Anticipator (cooling) 0 to 1.5A fixed


Anticipator (heating) First stage 0 to 1.5A fixed; Second stage 0.1 to 1.2A adj.


Currents (Cooling) 1.5A running, 6.5A inrush at 30 Vac max.


Currents (Heating) 1st Stage 1.5A running, 6.5A inrush at 30 Vac max.;2nd Stage 1.5 running and 6.5A inrush at 30 Vac max.
Currents (Fan) 0.02A to 0.5A running, 2.5A inrush


Sensor Element Bimetal


Fan Operation Auto Fan in EM. HEAT


LEDs AUX.HT., EM.HT.


Ambient Temperature Range (F) 45 F to 85 F


Ambient Temperature Range (C) 7C to 29 C

Replaces Part Numbers: CART841A1217

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