Installation, Wiring Connections | White Rodgers 1F97-1277 specification

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 diagrams on next page).

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 1F97-1277

Mounting	+	Mounting
Mounting	S	Mounting
Hole	-	Hole
Hole		Hole
	W
	6
Place Level	L	Place Level
Place Level		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 system wiring information. After wiring, see CONFIGURA- TION section for proper thermostat configuration.

TERMINAL DESIGNATION DESCRIPTIONS

For wiring diagrams, see next page.

Wiring diagrams shown are for typical systems and describe the thermostat terminal functions.

Terminal Designation	Description
B	Changeover valve for heat pump energized constantly in heating
O	Changeover valve for heat pump energized constantly in cooling
Y	Compressor Relay
G	Fan Relay
RC	Power for Cooling
RH	Power for Heating
C	Common wire from secondary side of cooling
L	For Call for Service indicator for systems with diagnostic connection
6	Powered closed connection for 3-wire zone valve
W	Heat Relay
-	Common (DC) for wired remote temperature sensor
S	Frequency signal from remote temperature sensor
+	Power (DC) to remote temperature sensor

1F97-1277 specifications

The White Rodgers 1F97-1277 is an advanced programmable thermostat designed for residential heating and cooling systems. This model exemplifies the perfect blend of functionality and user-friendliness, offering homeowners a reliable way to manage their indoor climate effectively.

One of the standout features of the 1F97-1277 is its intuitive interface. The large, easy-to-read LCD display allows users to quickly view and adjust settings without the frustration often associated with traditional thermostats. The screen includes backlighting, ensuring visibility even in low-light conditions.

The unit is programmable, providing users the flexibility to create customized heating and cooling schedules. With up to seven-day programming, homeowners can tailor their settings according to personal routines. This level of customization not only enhances comfort but also contributes to energy savings, as systems can be set to reduce heating or cooling when the home is unoccupied.

White Rodgers has integrated a variety of technologies into the 1F97-1277 to improve performance and user experience. The thermostat features an auto-changeover function, which allows it to seamlessly switch between heating and cooling modes depending on the indoor temperature. This functionality minimizes the need for manual adjustments, ensuring optimal comfort throughout the year.

Another important characteristic of this model is its compatibility with a range of HVAC systems. It supports single-stage and multi-stage heating and cooling systems, as well as heat pumps, making it a versatile choice for a variety of homes. The 1F97-1277 also includes FARS (Fresh Air Reduction System) technology, which monitors indoor air quality and adjusts operations to enhance ventilation.

Energy efficiency is further bolstered through the presence of smart recovery technology. This feature enables the thermostat to anticipate the time needed to reach the desired temperature, allowing the HVAC system to operate less while still maintaining comfort levels.

Overall, the White Rodgers 1F97-1277 represents a modern solution for temperature control. With its combination of user-friendly design, programmable capabilities, and advanced technologies, it stands out as an exceptional choice for anyone looking to improve home comfort while managing energy costs efficiently. The reliability and flexibility of this thermostat make it an invaluable tool for today’s homeowners.