White Rodgers 1F92W-51 manual Heat Pump System

Page 15

NOTE

Relay contacts shown are thermostatically operated. The accessory relay scheme is required when safety circuits exist in both systems.

Thermostat

Control

Circuit

!CAUTION

Polarity must be observed. If the HOT side of the second transformer is jumpered to the COMMON side of the first transformer a short will be made. Damage to equipment will occur when power is restored.

THERMOSTAT

O B

Changeover

Energized

In Heat

Y1 G W1

Fan

Relay

E1

E2

W2

C

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emergency

 

 

Heat

 

 

Limit or

 

 

 

 

 

 

 

 

 

Limit or

Relay

 

 

Relay

 

 

Safety

 

 

 

 

 

 

 

 

 

Safety

Switched

 

 

 

 

 

 

 

 

 

 

 

Hot

 

 

 

 

 

 

 

Switches

 

 

 

 

 

 

 

Switches

Output

 

 

Stage 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC

 

 

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Changeover

 

Compressor

 

Heat

Energized

 

Contactor

 

Relay

In Cool

 

Stage 1

 

Stage 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT PUMP SYSTEM

TWO COMMONS MUST

BE JUMPERED TOGETHER!

 

Emergency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC

 

 

 

 

 

 

 

 

 

 

 

Neutral

 

 

 

Relay

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Constant

 

 

 

 

Accessory

 

 

 

 

AUXILIARY

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

 

 

 

 

Relay N.O.

 

 

 

 

 

 

HEATING

 

 

 

 

 

 

 

 

 

Contact

 

 

 

 

TRANSFORMER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUXILIARY

 

 

 

 

 

HEAT PUMP

 

 

 

 

 

Limit or

 

 

Limit or

 

 

HEATING SYSTEM

 

 

 

TRANSFORMER

 

 

 

 

Safety

 

Safety

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hot

 

 

 

 

 

 

 

 

Switches

 

 

 

 

 

 

 

 

 

 

 

 

Switches

 

 

 

 

 

 

 

 

24 VAC

 

 

 

 

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Neutral

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 6. Typical wiring diagram for two transformer systems with safety circuits in BOTH systems

15

Image 15
Contents 1F92W-51 About Your New Thermostat Programming Your THERMOSTAT’S Specifications Installing Your ThermostatYour NEW THERMOSTAT’S Operating Your ThermostatYour NEW THERMOSTAT’S Features Precautions Staging Data THERMOSTAT’S SpecificationsAccessories Electrical Data Thermal DataInstalling Your Thermostat NEW InstallationRoute Wires to Location Routing thermostat wires Wall Replacement InstallationWire Identification Labels Remove OLD ThermostatPage Attach Subbase to Wall Subbase Typical wiring diagram for single transformer systems Depending on System Require Heat Pump System Attach Thermostat to Subbase USETo Turn Thermostat OFF be System Configuration SET Option SwitchesTwo Compressor Split System Switch #1 on Switch #2 on Ming Your Thermostat Check Thermostat OperationFAN Operation Heating System OperationCooling System Operation Lockout Bypass Option Compressor Short Term Cycle ProtectionPress Use System to turn the thermostat OFF Operating Your ThermostatBack of the Thermostat Body Parts of the ThermostatTo turn thermostat OFF before Removing thermostat from the wall to re- place the batteryAting Features UseSystem Time SET View Hold Used with Thermostat Buttons and LightsSystem Time SET View Hold Operating Features Automatic Changeover on Automatic Changeover OFF TWO Hour Temperature OverrideTo adjust Heat anticipation, press Convertibility Press TimeTo increase the cycle time. If the heat Cool or Heat LOW Battery Indicator The word BATCompressor Short Cycle Protec CoolUntil FAN Planning for Your Needs Programming Your ThermostatYour Home Your needs, simply press Factory preset programEntering Your Program Programming. be Sure to PressTurn Thermostat OFF Before REATTACH- ING to Subbase Weekday 5 DAY Weekend 2 DAY Heating/Cooling Schedule PlanMOR Heat SampleEnter Heating Program Set Current Time and DayPress and hold either Until youWant to stop programming at any time, simply press Fore Reattaching to Subbase Enter Cooling ProgramCheck Your Programming Gramming Your Thermostat Questions and AnswersUntil you return to the point where you How can I permanently change a part of my program?What can cause the thermostat display to freeze or go blank? Why can’t I program the thermostat in the Auto mode?Mostat ING Your ThermostatErating Your Thermostat Why is the system turning on and off so frequently seldom? Maintains programming, press System until Page Page Part No -5414A