White Rodgers 1F87-51 specifications Check Thermostat Operation, Heating System, Fan Operation

Models: 1F87-51

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CHECK THERMOSTAT OPERATION

JUMPER

WIRE

THERMOSTAT

B O Y G

W RC RH

SYSTEM

Heating

 

 

 

System

 

 

24 VAC Transformer

 

 

 

 

 

 

or

 

 

 

Thermopile

 

 

 

 

Figure 3. Typical wiring diagram for heating only,

B O

NOTE

RED jumper wire (provided with thermostat) must be connected between thermo- stat'sRH and RC terminals for proper thermostat oper- ation with this system.

Y

G

W

RC RH

THERMOSTAT

SYSTEM

 

 

 

 

Cooling

Fan

Heating

 

 

System

Relay

System

 

Hot

 

 

 

24 VAC

120 VAC

 

 

 

 

Neutral

 

 

 

TRANSFORMER

2-wire, single transformer systems or millivolt systems

Figure 7. Typical wiring diagram for

heat/cool, 4-wire, single transformer systems

Thermostat

R W

 

NOTE

 

3-wire Series 10

Jumper wire must be

Primary Control

added between R and B

terminals on the

primary

(located at furnace)

control (jumper

wire not

B

provided with thermostat).

W

 

R

 

Add jumper wire

Furnace

 

(not provided with thermostat)

 

THERMOSTAT

B O Y

G

W

RC RH

Cooling

Fan

Heating

System

Relay

System

SYSTEM

Hot

 

 

 

 

 

 

 

 

 

 

24 VAC

 

 

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

 

 

Neutral

HEATING TRANSFORMER

24 VAC

 

 

 

 

 

 

Hot

 

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

Neutral

COOLING TRANSFORMER

Figure 4. Typical wiring diagram for 3-wire SERIES 10 heating systems

Figure 8. Typical wiring diagram for

heat/cool, 5-wire, two-transformer systems

B O Y

NOTE

RED jumper wire (provided with thermostat) must be connected between thermo- stat'sRH and RC terminals for proper thermostat oper- ation with this system.

JUMPER

WIRE

G

W

RC

RH

THERMOSTAT

SYSTEM

 

 

 

 

Fan

Heating

 

 

 

Relay

System

 

 

Hot

 

 

 

24 VAC

120 VAC

 

 

 

 

Neutral

 

 

 

TRANSFORMER

JUMPER JUMPER

WIREWIRE

B O

Y

G W

RC RH

THERMOSTAT

SYSTEM

 

 

 

 

Reversing

Compressor

Fan

 

 

Valve*

Contactor

Relay

 

Hot

 

 

 

24 VAC

120 VAC

* Reversing valve is energized when the

 

Neutral

system switch is in the COOL position

TRANSFORMER

 

 

 

Figure 5. Typical wiring diagram for

heat only, 3-wire, single transformer systems

B

O

Y

G W

RC RH

THERMOSTAT

SYSTEM

 

 

 

 

 

 

 

Cooling

Fan

 

 

 

 

System

Relay

 

Hot

 

 

 

 

24 VAC

120 VAC

 

 

 

 

 

Neutral

 

 

 

 

TRANSFORMER

Figure 6. Typical wiring diagram for

cool only, 3-wire, single transformer systems

Figure 9. Typical wiring diagram for

heat pump with cool active reversing valve

JUMPER JUMPER

WIREWIRE

B

O

Y

G W

RC RH

THERMOSTAT

SYSTEM

 

 

 

 

 

Reversing

Compressor

Fan

 

 

Valve*

 

Contactor

Relay

 

Hot

 

 

 

 

24 VAC

120 VAC

* Reversing valve is energized when the

 

Neutral

system switch is in the HEAT position

TRANSFORMER

 

 

 

 

Figure 10. Typical wiring diagram for

heat pump with heat active reversing valve

CHECK THERMOSTAT OPERATION

Heating System

If at any time during testing your system does not operate properly, contact a qualified serviceperson.

Fan Operation

If your system does not have a G terminal connection, skip to Heating System.

1.Turn on power to the system.

2.Move FAN switch to ON position. The blower should begin to operate.

3.Move FAN switch to AUTO position. The blower should stop immediately.

1.Move SYSTEM switch to HEAT position. If the heating system has a standing pilot, be sure to light it.

2.Press Heating System to adjust thermostat setting above room tempera- ture. The heating system should begin to operate.

3.Press Fan Operation to adjust temperature setting below room tempera- ture. The heating system should stop operating.

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White Rodgers 1F87-51 specifications Check Thermostat Operation, Heating System, Fan Operation