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White-Rodgers 1F83-277 Heating & Air Conditioning Auto Changeover Heat Pump Thermostat User Manual

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MOUNTING AND WIRING

WARNING

CAUTION

Take care when securing and routing wires so they do

not short to adjacent terminals or rear of thermostat.

Personal injury and/or property damage may occur.

Do not use on circuits exceeding specified voltage.

Higher voltage will damage control and could cause

shock or fire hazard.

Attach Thermostat Base to Wall

Do not short out terminals on gas valve or primary

control to test. Short or incorrect wiring will damage

thermostat and could cause personal injury and/or

property damage.

1. Remove the packing material from the thermostat. Gently

pull the cover straight off the base. Forcing or prying on

the thermostat will cause damage to the unit.

2. Connect wires beneath terminal screws on base using

appropriate wiring schematic (see figs. 2 through 4).

Thermostat installation and all components of the

system shall conform to Class II circuits per the NEC

code.

3. Place base over hole in wall and mark mounting hole

locations on wall using base as a template.

4. Move base out of the way. Drill mounting holes.

Electric/Gas Switch (Fan Option)

5. Fasten base loosely to wall, as shown in fig. 1, using two

mounting screws. Place a level against bottom of base,

adjust until level, and then tighten screws. (Leveling is for

appearance only and will not affect thermostat operation.)

If you are using existing mounting holes, or if holes drilled

are too large and do not allow you to tighten base snugly,

use plastic screw anchors to secure subbase.

This thermostat is configured from the factory to operate a heat/

cool, fossil fuel (gas, oil, etc.), forced air system. It is configured

correctly for any system that DOES NOT require the thermostat

to energize the fan on a call for heat. If you system is an electric

heat or heat-pump system that REQUIRES the thermostat to

turn on the fan on a call for heat, locate the ELEC/GAS switch

on the back of the thermostat (see fig. 1) and switch it to the

ELEC position. This will allow the thermostat to energize the fan

immediately on a call for heat. If you are unsure if the heating/

cooling system requires the thermostat to control the fan,

contact a qualified heating and air conditioning service person.

6. Push excess wire into wall and plug hole with a fire-

resistant material (such as fiberglass insulation) to

prevent drafts from affecting thermostat operation.

Battery Location

2 “AA” alkaline batteries are included in the thermostat at the

factory with a battery tag to prevent power drainage. You

must remove the battery tag to engage the batteries.

When the thermostat is configured for Heat Pump, the thermo-

stat will always power the circulator fan on a call for heat in the

HEAT mode. The ELEC/GAS switch must be set to match the

type of Auxiliary heat your system uses for proper operation in

the EMERgency mode.

If “BATT” is displayed, the batteries are low and should be

replaced. For best results, replace all batteries with new

premium brand alkaline batteries such as Duracell^®or

Energizer^®. To replace batteries, press system button to

OFF, install the batteries along the top of the base (see Fig.

1). The batteries must be installed with the positive (+) end to

the left.

All wiring diagrams are for typical systems only. Refer to

equipment manufacturers’ instructions for specific system wir-

ing information.

E/W1

THERMOSTAT

SYSTEM

MONITOR

SWITCH

Reversing Valve

Energized in Cool

Mode

Reversing Valve

Energized in Heat,

Off, Emergency

Mode

2nd Stage

Fan

Emergency

Heat

Relay

Compressor

Aux

Heat

Relay

Compressor

Contactor

Relay

Hot

24 VAC

120 VAC

Neutral

TRANSFORMER

(Class II Current Limited)

Figure 2.Typical wiring diagram for single transformer heat pump systems

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” alkaline batteries.

NOTE

If safety circuits are in only one of the systems, remove

the transformer of the system with NO safety circuits.

E/W1

THERMOSTAT

SYSTEM

CUT AND

TAPE OFF!

SYSTEM

MONITOR

SWITCH

Reversing

Valve

Reversing

Valve

2nd Stage

Fan

Limit or

Safety

Switches

Emergency

Heat

Relay

Compressor

Relay

HOT

Energized in

Heat, Off,

Emergency

Mode

Energized in

Cool Mode

24 VAC

Aux

Heat

Relay

120 VAC

NEUTRAL

Compressor

Contactor

Hot

24 VAC

120 VAC

Neutral

TWO COMMONS MUST

BE JUMPERED TOGETHER!

TRANSFORMER

(Class II Current Limited)

Figure 3.Typical wiring diagram for two transformer heat pump systems with NO safety circuits

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” alkaline batteries.

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General	Details
Name	White-Rodgers 1F83-277 Heating & Air Conditioning Auto Changeover Heat Pump Thermostat User Manual
Make	WHITE RODGERS
Language	English
Filetype	PDF (Download)
File size	0.24 MB

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