INSTALLATION

!WARNING

Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code.

Remove Old Thermostat

A standard heat/cool thermostat consists of three basic parts:

1.The cover, which may be either a snap-on or hinge type.

2.The base, which is removed by loosening all captive screws.

3.The switching subbase, which is removed by unscrewing the mounting screws that hold it on the wall or adapter plate. Before removing wires from old thermostat, label each wire with the terminal designation from which it was attached. Disconnect the wires from the old thermostat one at a time. Do not let wires fall back into the wall.

Installing New Thermostat

1.Pull the thermostat body off the thermostat base. Forcing or prying on the thermostat will cause damage to the unit.

2.Place base over hole in wall and mark mounting hole locations on wall using base as a template.

3.Move base out of the way. Drill mounting holes. If you are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snug- ly, use plastic screw anchors to secure the base.

4.Fasten base snugly to wall using mounting holes shown in Figure 1 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation.

5.Connect wires to terminal block on base using appropriate wiring schematic (see diagram sheet 37-6808A).

6.Push excess wire into wall and plug hole with a fire re- sistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.

7.Carefully line the thermostat up with the base and snap into place.

Battery Location

2 "AA" alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. Remove the battery tag to engage the batteries.

To replace batteries, set system to OFF, remove thermostat from wall and install the batteries in the rear along the top of the thermostat (see Figure 1).

Figure 1 – Thermostat Base Multi-Stage 1F95-1277

Mounting

 

+

Mounting

 

S

Hole

Y2

-

Hole

 

W2

 

 

 

 

 

W/E

 

 

 

6

 

Place Level

 

L

Place Level

 

 

across

 

 

across

Mounting Tabs

 

 

Mounting Tabs

(for appearance only)

 

 

(for appearance only)

Rear view of thermostat

2 "AA" Batteries

WIRING CONNECTIONS

Refer to equipment manufacturers' instructions for specific

For wiring diagrams, see 37-6808A.

system wiring information. After wiring, see CONFIGURA-

Wiring diagrams shown are for typical systems and describe

TION section for proper thermostat configuration.

the thermostat terminal functions.

TERMINAL DESIGNATION DESCRIPTIONS

Terminal Designation

Description

B

Changeover valve for heat pump energized constantly in heating

O

Changeover valve for heat pump energized constantly in cooling

Y2

2nd Stage Compressor

Y

Compressor Relay

G

Fan Relay

RC

Power for Cooling

RH

Power for Heating

C

Common wire from secondary side of cooling

L

Heat pump malfunction indicator for systems with malfunction connection

6

Powered closed 3rd wire for 3-wire zone valve

W/E

Heat Relay/Emergency Heat Relay (Stage 1)

W2

2nd Stage Heat (3rd Stage Heat in HP2)

Blank

Blank

-

Common (DC) for wired remote temperature sensor

S

Frequency signal from remote temperature sensor

+

Power (DC) to remote temperature sensor

 

 

2

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White Rodgers 1F95-1277 specifications Installation, Wiring Connections, Remove Old Thermostat, Installing New Thermostat

1F95-1277 specifications

The White Rodgers 1F95-1277 is a state-of-the-art digital thermostat designed for residential heating and cooling systems, providing homeowners with precision climate control while enhancing comfort and energy efficiency. One of the standout features of the 1F95-1277 is its user-friendly interface. The large, backlit display allows for easy reading under various lighting conditions, making it accessible for users of all ages. With simple touchscreen controls, navigating settings is intuitive, ensuring a seamless experience when adjusting temperature or accessing features.

A key technology integrated into the 1F95-1277 is its smart scheduling capability. This feature enables homeowners to set up customized heating and cooling schedules based on their daily or weekly routines. By programming the thermostat to adjust temperatures when occupants are away or sleeping, users can optimize energy use and reduce utility bills. Additionally, the thermostat is equipped with a 7-day programmable function, allowing for significant customization to fit individual schedules.

Another notable characteristic of the White Rodgers 1F95-1277 is its compatibility with a wide range of HVAC systems, including single-stage and multi-stage heating and cooling systems, as well as heat pumps. This versatility makes it an ideal choice for various home setups. Furthermore, the thermostat supports both conventional and heat pump systems, providing flexibility for homeowners with diverse heating sources.

The 1F95-1277 also incorporates advanced features such as energy-saving settings and alerts. Users can receive notifications when it’s time to change filters or if the temperature in the home reaches extreme levels, ensuring that they can address issues promptly. The device also has adaptive recovery functionality, which learns the home’s heating and cooling characteristics and adjusts accordingly to ensure the desired temperature is reached by the scheduled time.

Overall, the White Rodgers 1F95-1277 combines technological innovation with energy-efficient features, making it an excellent choice for homeowners looking to enhance their comfort and lower energy costs. Its ease of use and advanced functionalities position it as a reliable and effective solution for modern climate control needs.