User Guide
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... available with excellent temperature control. • Electromechanical. • Classic styling. • Two heat/one cool; Select a Honeywell Heat Pump Thermostat for Peak Performance that Meets Every Heat Pump Demand Rapid advances in heat pump technology, resulting in high efficiency units and lower operating costs, have made the heat pump a popular choice with two-piece installation make it easy to install and troubleshoot...
... available with excellent temperature control. • Electromechanical. • Classic styling. • Two heat/one cool; Select a Honeywell Heat Pump Thermostat for Peak Performance that Meets Every Heat Pump Demand Rapid advances in heat pump technology, resulting in high efficiency units and lower operating costs, have made the heat pump a popular choice with two-piece installation make it easy to install and troubleshoot...
User Guide
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.... 18). or cool AUX.HT. Fixed B,O,R,X,E anticipation except Stage 2, which G,R,O,B,X is adjustable. W1,W2,W3, Y1,G,R,O,B, E,X,X1,X2 TRADELINE®; COOL 2 1 EM.HT.- HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Heat Pump Thermostat Model Specifications Table 1. Order Number T841A1308 T841A1555 T841A1712 T841A1738 T841B1000 Y594G1161 Y594G1419 Y594G1476 Y594G1633 Y594R1425 Description Terminals TRADELINE®; Same as Y594G1419, except Premier White™; With...
.... 18). or cool AUX.HT. Fixed B,O,R,X,E anticipation except Stage 2, which G,R,O,B,X is adjustable. W1,W2,W3, Y1,G,R,O,B, E,X,X1,X2 TRADELINE®; COOL 2 1 EM.HT.- HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Heat Pump Thermostat Model Specifications Table 1. Order Number T841A1308 T841A1555 T841A1712 T841A1738 T841B1000 Y594G1161 Y594G1419 Y594G1476 Y594G1633 Y594R1425 Description Terminals TRADELINE®; Same as Y594G1419, except Premier White™; With...
User Guide
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... Same as T8411R1002 except Premier W1,W2,Y, 2 White™. E,L,OT,OT TRADELINE®; Automatica HEAT-OFFAUTOCOOL 1 EM.-HT.- Manual cool EM.HT., HEAT-OFF- HT., AUTO- program up to four time R,C,G,W1, 2 periods and temperatures. Includes T874R1988/Q674L1868. AUX.HT. COOL 1 EM.HT.- Fixed anticipation except stage W2,Y,O, 2, which is selectable. (Fig. 29). HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION...
... Same as T8411R1002 except Premier W1,W2,Y, 2 White™. E,L,OT,OT TRADELINE®; Automatica HEAT-OFFAUTOCOOL 1 EM.-HT.- Manual cool EM.HT., HEAT-OFF- HT., AUTO- program up to four time R,C,G,W1, 2 periods and temperatures. Includes T874R1988/Q674L1868. AUX.HT. COOL 1 EM.HT.- Fixed anticipation except stage W2,Y,O, 2, which is selectable. (Fig. 29). HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION...
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...Stages Systems Heat Cool Switch Changeover T8611G2002 TRADELINE®; Automatica HEAT-OFF- AUTO- COOL PC8900A1007/ TRADELINE®; Perfect Climate Comfort R,C,RH,Y1/ 3 W8900B1002 Center™ Control System. 7-day (auto W1,G,O/B, copy) programming. COOL a In freezing climates, be sure the cooling... HEAT-OFF- AUX,E,Y2, W2,L 2 EM.HT.- d EM. G,E,L,R,C, Programmable fan and back lighting O/B,X1,X2, features. (Fig. 31). R,O/B,C,X1, X2,OT,OT 2 EM.HT.- AUTO- Programmable fan and back W3,G,E,L, lighting features. HEAT PUMP THERMOSTAT ...
...Stages Systems Heat Cool Switch Changeover T8611G2002 TRADELINE®; Automatica HEAT-OFF- AUTO- COOL PC8900A1007/ TRADELINE®; Perfect Climate Comfort R,C,RH,Y1/ 3 W8900B1002 Center™ Control System. 7-day (auto W1,G,O/B, copy) programming. COOL a In freezing climates, be sure the cooling... HEAT-OFF- AUX,E,Y2, W2,L 2 EM.HT.- d EM. G,E,L,R,C, Programmable fan and back lighting O/B,X1,X2, features. (Fig. 31). R,O/B,C,X1, X2,OT,OT 2 EM.HT.- AUTO- Programmable fan and back W3,G,E,L, lighting features. HEAT PUMP THERMOSTAT ...
User Guide
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... -stage cool in temperature to three LED indicator lights; Electronic thermostats provide droopless temperature control. 70-6627 • 5 Since heat pumps require thermostats with thermometer, locking lever stops, outdoor thermistor, TG504 Key Lock® Cover, and the TG511 Versaguard™ Universal Thermostat Guard. To correct this section also explains some of the heat pump thermostats that Honeywell manufactures. NOTE: All Honeywell electronic heat pump thermostats...
... -stage cool in temperature to three LED indicator lights; Electronic thermostats provide droopless temperature control. 70-6627 • 5 Since heat pumps require thermostats with thermometer, locking lever stops, outdoor thermistor, TG504 Key Lock® Cover, and the TG511 Versaguard™ Universal Thermostat Guard. To correct this section also explains some of the heat pump thermostats that Honeywell manufactures. NOTE: All Honeywell electronic heat pump thermostats...
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... multistage equipment. a On selected T8611M models, the high speed compressor is wired to the low-speed compressor terminal. 2. First stage heat anticipation is no jumper is a three-stage heat/two-stage cool thermostat used to control multistage heat pump equipment. Models are permanently held in memory in two-speed equipment. or full 7-day programming. However, there is fixed; The...
... multistage equipment. a On selected T8611M models, the high speed compressor is wired to the low-speed compressor terminal. 2. First stage heat anticipation is no jumper is a three-stage heat/two-stage cool thermostat used to control multistage heat pump equipment. Models are permanently held in memory in two-speed equipment. or full 7-day programming. However, there is fixed; The...
User Guide
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... is reached. Honeywell does not recommend this requirement, a separate switching relay must be energized on a call for heat pumps that the comfort setting is energized, reversing the logic of cooling. 70-6627 • 7 See the following wiring diagrams for heat pumps that provide changeover in the heating mode and for stage 1 cool (Y1). When the thermostat calls for heat, the thermostat Y terminal...
... is reached. Honeywell does not recommend this requirement, a separate switching relay must be energized on a call for heat pumps that the comfort setting is energized, reversing the logic of cooling. 70-6627 • 7 See the following wiring diagrams for heat pumps that provide changeover in the heating mode and for stage 1 cool (Y1). When the thermostat calls for heat, the thermostat Y terminal...
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... of heating. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Equipment Equipment Function Terminals Power R 1st Stage Cool Y1 2nd Stage Cool Y2 Fan G 1st Stage Heat W1 2nd Stage Heat W2 Transformer Common C T8611M Terminals R Y2 G W2 C Y Heating Changeover B O R8222B Relay B M13231 Fig. 2. Installing an R8222B Switching Relay on heat pumps requiring heating mode changeover. Now when the thermostat calls for cooling, the thermostat Y terminal activates the first stage of...
... of heating. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Equipment Equipment Function Terminals Power R 1st Stage Cool Y1 2nd Stage Cool Y2 Fan G 1st Stage Heat W1 2nd Stage Heat W2 Transformer Common C T8611M Terminals R Y2 G W2 C Y Heating Changeover B O R8222B Relay B M13231 Fig. 2. Installing an R8222B Switching Relay on heat pumps requiring heating mode changeover. Now when the thermostat calls for cooling, the thermostat Y terminal activates the first stage of...
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.... 5 through 13 for the wiring connections of these types of heat pump equipment require a separate relay for some thermostats to the equipment in this fan operation is as described in the emergency heat mode. Existing Control Equipment Function Terminal Designation Transformer Common C 1st Stage Cooling Y1 1st Stage Heating W1 New Terminal Designation C Y O M13235 Fig. 5. Require relay (R8222B1067...
.... 5 through 13 for the wiring connections of these types of heat pump equipment require a separate relay for some thermostats to the equipment in this fan operation is as described in the emergency heat mode. Existing Control Equipment Function Terminal Designation Transformer Common C 1st Stage Cooling Y1 1st Stage Heating W1 New Terminal Designation C Y O M13235 Fig. 5. Require relay (R8222B1067...
User Guide
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... for PC8900 in heat pump applications requiring separate Y1 and W1 terminals with a cooling changeover. 70-6627 • 12 HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Equipment Equipment Function Terminals Transformer Common C Power R Fan G 1st Stage Heating W1 1st Stage Cooling Y1 Changeover Valve B PC8900 Terminals C R G O/B Y1/W1 2nd Stage Heating W2 Aux. Relay wiring connections for PC8900 in heat pump applications requiring separate...
... for PC8900 in heat pump applications requiring separate Y1 and W1 terminals with a cooling changeover. 70-6627 • 12 HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Equipment Equipment Function Terminals Transformer Common C Power R Fan G 1st Stage Heating W1 1st Stage Cooling Y1 Changeover Valve B PC8900 Terminals C R G O/B Y1/W1 2nd Stage Heating W2 Aux. Relay wiring connections for PC8900 in heat pump applications requiring separate...
User Guide
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HEAT switching). The thermostat automatically changes between heat and cool modes as follows: Auto changeover-refers to the presence of the circuits from the transformer. Manual changeover-requires a system switch movement to HEAT (manual changeover) or by function: H1-Stage 1 Heating. H3-Stage 3 Heating. C/O-Changeover (heat pumps... schematic indicates switch operation by being drawn in the system switching (EX: Q674F with OFF-COOL AUTO-HEAT-EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Understanding Circuits To understand wiring diagrams, it is important to know what...
HEAT switching). The thermostat automatically changes between heat and cool modes as follows: Auto changeover-refers to the presence of the circuits from the transformer. Manual changeover-requires a system switch movement to HEAT (manual changeover) or by function: H1-Stage 1 Heating. H3-Stage 3 Heating. C/O-Changeover (heat pumps... schematic indicates switch operation by being drawn in the system switching (EX: Q674F with OFF-COOL AUTO-HEAT-EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Understanding Circuits To understand wiring diagrams, it is important to know what...
User Guide
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HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Typical System Hookup Diagrams L1 L2 (HOT) RTD 1 1 ODT 1 H1 C1 FALL H1/C1 ANTICIPATOR FAN SWITCH AUTO ON G R EHR 1 RTD 2 ODT 2 EHR 2 RTD 3 FAN RELAY H2 ANTICIPATOR H2 FALL 2 EM. HT. HEAT OFF COOL SYSTEM SWITCH 1 POWER SUPPLY. HT. RELAY SYSTEM MONITOR X LACO Y HEAT CHANGEOVER VALVE COMPRESSOR CONTACTOR O COOL CHANGEOVER...
HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE Typical System Hookup Diagrams L1 L2 (HOT) RTD 1 1 ODT 1 H1 C1 FALL H1/C1 ANTICIPATOR FAN SWITCH AUTO ON G R EHR 1 RTD 2 ODT 2 EHR 2 RTD 3 FAN RELAY H2 ANTICIPATOR H2 FALL 2 EM. HT. HEAT OFF COOL SYSTEM SWITCH 1 POWER SUPPLY. HT. RELAY SYSTEM MONITOR X LACO Y HEAT CHANGEOVER VALVE COMPRESSOR CONTACTOR O COOL CHANGEOVER...
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... H2 10 SYSTEM SWITCH 3 EM. COMPRESSOR MONITOR R OUTDOOR THERMOSTAT X2 T OUTDOOR O THERMISTOR COOL CHANGEOVER RELAY COMPRESSOR CONTACTOR Y 2 FIELD REMOVABLE JUMPER. 3 AUTO FAN IN EMERGENCY HEAT. HEAT LED (RED) W3 RELAY COOL CHANGEOVER RELAY G R E X AUX. HEAT RELAY B HEAT CHANGEOVER RELAY COMPRESSOR CONTACTOR Y Fig. 18. W3 O EM. HEAT RELAY AUX. HT. HEAT LED (GRN) W2 FAN RELAY EM. Internal schematic and...
... H2 10 SYSTEM SWITCH 3 EM. COMPRESSOR MONITOR R OUTDOOR THERMOSTAT X2 T OUTDOOR O THERMISTOR COOL CHANGEOVER RELAY COMPRESSOR CONTACTOR Y 2 FIELD REMOVABLE JUMPER. 3 AUTO FAN IN EMERGENCY HEAT. HEAT LED (RED) W3 RELAY COOL CHANGEOVER RELAY G R E X AUX. HEAT RELAY B HEAT CHANGEOVER RELAY COMPRESSOR CONTACTOR Y Fig. 18. W3 O EM. HEAT RELAY AUX. HT. HEAT LED (GRN) W2 FAN RELAY EM. Internal schematic and...
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... ANTICIPATOR FAN SWITCH AUTO ON SYSTEM SWITCH EM .HT. Fig. 20. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE H1/C1 ANTICIPATOR H1 C1 FALL FAN SWITCH AUTO ON W1 HEAT RELAY 1 W2 HEAT RELAY 2 B HEAT CHANGEOVER VALVE G FAN RELAY H2 ANTICIPATOR H2 FALL SYSTEM SWITCH HEAT OFF COOL 1 POWER SUPPLY. HT. HT. L1 (HOT) L2 1 M1593 70-6627...
... ANTICIPATOR FAN SWITCH AUTO ON SYSTEM SWITCH EM .HT. Fig. 20. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE H1/C1 ANTICIPATOR H1 C1 FALL FAN SWITCH AUTO ON W1 HEAT RELAY 1 W2 HEAT RELAY 2 B HEAT CHANGEOVER VALVE G FAN RELAY H2 ANTICIPATOR H2 FALL SYSTEM SWITCH HEAT OFF COOL 1 POWER SUPPLY. HT. HT. L1 (HOT) L2 1 M1593 70-6627...
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HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE FALL 1 H1 ANTICIPATOR 2 H1 4 6 H2 ANTICIPATOR H2 FALL RISE 8 C1 9 C1 ANTICIPATOR 10 11 RISE CO 12 FAN SWITCH AUTO ON SYSTEM SWITCH OFF EM. HEAT LED (GREEN) AUX. H1 RISE 1 CHANGEOVER (HEAT) FALL 2 H1 ... HT. HEAT RELAY W2 L1 (HOT) L2 1 Y 1 POWER SUPPLY. HT. LED (RED) X COOL CHANGEOVER VALVE O B W1 RELAY W1 HEAT CHANGEOVER VALVE 2 COMPRESSOR CONTACTOR Y1 1 POWER SUPPLY. HT. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. HEAT AUTO COOL W2 E AUX. HEAT AUTO COOL O COOL CHANGEOVER VALVE...
HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE FALL 1 H1 ANTICIPATOR 2 H1 4 6 H2 ANTICIPATOR H2 FALL RISE 8 C1 9 C1 ANTICIPATOR 10 11 RISE CO 12 FAN SWITCH AUTO ON SYSTEM SWITCH OFF EM. HEAT LED (GREEN) AUX. H1 RISE 1 CHANGEOVER (HEAT) FALL 2 H1 ... HT. HEAT RELAY W2 L1 (HOT) L2 1 Y 1 POWER SUPPLY. HT. LED (RED) X COOL CHANGEOVER VALVE O B W1 RELAY W1 HEAT CHANGEOVER VALVE 2 COMPRESSOR CONTACTOR Y1 1 POWER SUPPLY. HT. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. HEAT AUTO COOL W2 E AUX. HEAT AUTO COOL O COOL CHANGEOVER VALVE...
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... B COMPRESSOR MONITOR F R 1 L1 (HOT) L2 T X2 OUTDOOR THERMOSTAT O COMPRESSOR CONTACTOR Y OUTDOOR SENSOR COOL CHANGEOVER VALVE M8701 Fig. 23. HEAT LED (RED) X AUX. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. HEAT RELAY W2 FAN RELAY G COOL CHANGEOVER VALVE O COOL E COMPRESSOR EM. L1 (HOT) L2 1 M8700 70-6627 • 19 HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE 1 2 H1 C1 FALL...
... B COMPRESSOR MONITOR F R 1 L1 (HOT) L2 T X2 OUTDOOR THERMOSTAT O COMPRESSOR CONTACTOR Y OUTDOOR SENSOR COOL CHANGEOVER VALVE M8701 Fig. 23. HEAT LED (RED) X AUX. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. HEAT RELAY W2 FAN RELAY G COOL CHANGEOVER VALVE O COOL E COMPRESSOR EM. L1 (HOT) L2 1 M8700 70-6627 • 19 HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE 1 2 H1 C1 FALL...
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.... LED (GRN) W2 AUX. HEAT OFF COOL 11 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 REMOVE JUMPER WHEN W1 RELAY IS USED. 3 FACTORY-INSTALLED JUMPER. RELAY X 3 X2 HEAT CHANGEOVER VALVE B W1 RELAY W1 2 COMPRESSOR CONTACTOR Y L1 (HOT) L2 1 M8713 Fig. 25. HT. HT. RELAY E EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE W3...
.... LED (GRN) W2 AUX. HEAT OFF COOL 11 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 REMOVE JUMPER WHEN W1 RELAY IS USED. 3 FACTORY-INSTALLED JUMPER. RELAY X 3 X2 HEAT CHANGEOVER VALVE B W1 RELAY W1 2 COMPRESSOR CONTACTOR Y L1 (HOT) L2 1 M8713 Fig. 25. HT. HT. RELAY E EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE W3...
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HT. HT. HT. HEAT OFF AUTO COOL C. COOL CHANGEOVER VALVE O COOL C. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 DENOTES THERMOSTAT TO SUBBASE INTERCONNECT. LED (GREEN) L HEAT 2 MONITOR W2 AUX. L1 (HOT) L2 1 70-6627 • 21 HT. RELAY E EM. LED (RED) R... SWITCH IN SECONDARY OF SEPARATE TRANSFORMER M6020A Fig. 26. HT. B HEAT CHANGEOVER VALVE HIGH LIMIT HEAT 1 1 POWER SUPPLY. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE 2 POWER SUPPLY THERMOSTAT LOGIC CIRCUIT SUBBASE LOGIC/ CONTROL CIRCUIT FAN SWITCH ON AUTO HIGH LIMIT EM...
HT. HT. HT. HEAT OFF AUTO COOL C. COOL CHANGEOVER VALVE O COOL C. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 DENOTES THERMOSTAT TO SUBBASE INTERCONNECT. LED (GREEN) L HEAT 2 MONITOR W2 AUX. L1 (HOT) L2 1 70-6627 • 21 HT. RELAY E EM. LED (RED) R... SWITCH IN SECONDARY OF SEPARATE TRANSFORMER M6020A Fig. 26. HT. B HEAT CHANGEOVER VALVE HIGH LIMIT HEAT 1 1 POWER SUPPLY. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE 2 POWER SUPPLY THERMOSTAT LOGIC CIRCUIT SUBBASE LOGIC/ CONTROL CIRCUIT FAN SWITCH ON AUTO HIGH LIMIT EM...
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... E SYSTEM SWITCH EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE THERMOSTAT LOGIC CIRCUIT POWER SUPPLY SUBBASE LOGIC/ CONTROL CIRCUIT FAN SWITCH ON AUTO S1 S1 S2 S2 S3 S3 6 200905 REMOTE SENSOR HEAT 1 HIGH LIMIT 5 HIGH LIMIT EM. O. HT. LED (RED) R 4 3 C AUX. HT. HEAT OFF AUTO COOL COOL 1 FAN RELAY G COOL CHANGEOVER C. RELAY W3 HEAT 3 STAGE 2 RELAY W2 HEAT 2 EM. HT. PROVIDE...
... E SYSTEM SWITCH EM. HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE THERMOSTAT LOGIC CIRCUIT POWER SUPPLY SUBBASE LOGIC/ CONTROL CIRCUIT FAN SWITCH ON AUTO S1 S1 S2 S2 S3 S3 6 200905 REMOTE SENSOR HEAT 1 HIGH LIMIT 5 HIGH LIMIT EM. O. HT. LED (RED) R 4 3 C AUX. HT. HEAT OFF AUTO COOL COOL 1 FAN RELAY G COOL CHANGEOVER C. RELAY W3 HEAT 3 STAGE 2 RELAY W2 HEAT 2 EM. HT. PROVIDE...
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... WITH ISOLATED STAGE 1 HEATING AND COOLING CONNECTIONS. 3 DENOTES THERMOSTAT TO SUBBASE INTERCONNECT. HEAT OFF COOL L1 R (HOT) L2 AUXILARY HEAT RELAY 1 W2 RELAY L CHANGEOVER VALVE HEAT B CHANGEOVER VALVE COOL O COMPRESSOR CONTACTOR Y 2 COMPRESSOR CONTACTOR HEAT W1 POWER SUPPLY FAN SWITCH ON AUTO EMERGENCY HEAT RELAY E FAN RELAY G C 1 POWER SUPPLY. L1 (HOT) L2 1 THERMISTOR SENSOR THERMOSTAT LOGIC STAGE 2 RELAY STAGE 1 RELAY SYSTEM SWITCH EM. HEAT PUMP THERMOSTAT CROSS REFERENCE...
... WITH ISOLATED STAGE 1 HEATING AND COOLING CONNECTIONS. 3 DENOTES THERMOSTAT TO SUBBASE INTERCONNECT. HEAT OFF COOL L1 R (HOT) L2 AUXILARY HEAT RELAY 1 W2 RELAY L CHANGEOVER VALVE HEAT B CHANGEOVER VALVE COOL O COMPRESSOR CONTACTOR Y 2 COMPRESSOR CONTACTOR HEAT W1 POWER SUPPLY FAN SWITCH ON AUTO EMERGENCY HEAT RELAY E FAN RELAY G C 1 POWER SUPPLY. L1 (HOT) L2 1 THERMISTOR SENSOR THERMOSTAT LOGIC STAGE 2 RELAY STAGE 1 RELAY SYSTEM SWITCH EM. HEAT PUMP THERMOSTAT CROSS REFERENCE...
