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

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

3

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White Rodgers 1F87-51 specifications Check Thermostat Operation, Heating System, Fan Operation, Turn on power to the system

1F87-51 specifications

The White Rodgers 1F87-51 is a highly versatile smart thermostat designed to enhance home energy management. Offering advanced features that cater to both comfort and efficiency, it stands out in its category due to its user-friendly interface and innovative technology.

One of the main features of the 1F87-51 is its compatibility with a wide range of heating and cooling systems. It supports conventional systems such as gas, oil, and electric furnaces, as well as heat pumps and multi-stage systems. This versatility makes it a suitable choice for a diverse array of household setups. Additionally, the thermostat can manage up to two-stage heating and two-stage cooling simultaneously, providing precise control over home temperatures throughout the year.

The 1F87-51 employs a simple yet effective programming system, allowing users to create schedules that fit their lifestyle. This programmable capability means users can set specific heating and cooling times, optimizing energy usage and ensuring comfort when it's needed most. With up to four programmable periods per day, the thermostat allows for detailed customization. Furthermore, it features a "hold" function, letting homeowners maintain a set temperature indefinitely, bypassing programmed settings whenever required.

In terms of technology, the White Rodgers 1F87-51 utilizes an intuitive digital display that is easy to read and operate. This backlit display provides clear visibility in low-light conditions, making adjustments simple. The thermostat is also equipped with an automatic changeover functionality. This feature seamlessly transitions between heating and cooling modes, maintaining a stable indoor environment without requiring manual intervention.

Energy efficiency is a key characteristic of the 1F87-51. With its advanced algorithms, the thermostat learns user patterns and automatically adjusts settings to save energy, ultimately resulting in reduced utility bills. Some users may also appreciate its Energy Save function, which can pause heating or cooling during periods of inactivity.

Installation of the 1F87-51 is straightforward, with a clear wiring diagram, allowing even those with basic DIY skills to set it up.

Overall, the White Rodgers 1F87-51 smart thermostat combines flexibility, ease of use, and energy efficiency, making it an ideal choice for homeowners looking to modernize their climate control systems. With its ability to adapt to individual needs, it ensures a comfortable living environment while promoting energy savings.