White Rodgers 1F80-71 User Manual

WHITE-RODGERS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

Your new White-Rodgers 5-Day/2-Day Single Stage Digital Thermostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. This thermostat offers you the flexibility to design heating and cooling programs that fit your needs.

Features:

• Separate 5-day (weekday) and 2-day (weekend) programming with four separate time/temperature periods per program

• Simultaneous heat and cool program storage

• Automatic changeover

• Optional C terminal (dual power option)

1F80-71

Programmable Electronic

Digital Automatic Changeover Single Stage Thermostat

INSTALLATION AND

OPERATION INSTRUCTIONS

DESCRIPTION

• Optional Energy Management Recovery (EMR)

• Optional B and O terminals

• Preprogrammed temperature control

• LCD continuously displays set point, and alternately displays time and room temperature

• Temperature override until next program period

• Manual program override (HOLD temperature)

• °F/°C convertibility

• Temperature range 45° to 90°F

• Keypad lockout

• Armchair programming capability

This thermostat is intended for use with a 24-volt system; do not use this thermostat with a millivolt or line voltage system. If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor or electrician.

Do not exceed the specification ratings. All wiring must conform to local and national electrical codes and

ordinances. This control is a precision instrument, and should be handled

carefully. Rough handling or distorting components could cause the control to malfunction.

ELECTRICAL DATA Electrical Rating:

8 to 30 VAC 50/60 Hz. or D.C.

0.05 to 1.5 Amps (Load per terminal)

1.5 Amps Maximum Total Load (All terminals combined)

THERMAL DATA Setpoint Temperature Range:

45°F to 90°F (7°C to 32°C)

Operating Ambient Temperature Range:

32°F to 105°F

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

PRECAUTIONS

CAUTION

To prevent electrical shock and/or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

WARNING

Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard.

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.

SPECIFICATIONS

APPLICATIONS

For use with:

• Standard heat/cool or heat only systems

• Electric heat systems

• Gas or oil fired systems

• Gas systems with intermittent ignition devices (I.I.D.)

and/or vent dampers

• Hydronic (hot water or steam) systems

DO NOT USE WITH:

• Multi-stage systems

• Systems exceeding 30 VAC and 1.5 amps

• Millivolt systems

• 3-wire zoned hydronic heating systems

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398

Printed in U.S.A.

PART NO. 37-6120A

9934

INSTALLATION

Figure 1. Back of thermostat base

W905 CUT FOR LONGER CYCLES

W903 CUT TO DEFEAT EMR

GAS ELECTRIC

REMOVE OLD THERMOSTAT

1. Shut off electricity at the main fuse box until installation is complete. Ensure that electrical power is disconnected.

2. Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall. If the old thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly.

3. Identify each wire attached to the old thermostat using the

labels enclosed with the new thermostat.

4. Disconnect the wires from old thermostat one at a time. DO NOT LET WIRES FALL BACK INTO THE WALL.

5. Install new thermostat using the following procedures.

PRE-INSTALLATION SET-UP

1. Remove the packing material from the thermostat.

2. 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 your 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 GAS/ELECTRIC switch on the back of the thermostat (see fig. 1) and switch it to the ELECTRIC 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.

3. Two jumpers are also located on the back of the thermostat, so that you may customize the thermostat to meet your individual preference (see fig. 1). In most applications, the factory jumper settings provide the most comfortable and convenient thermostat operation.

Jumper wire W905 determines how fast the system cycles on and off, based on temperature change. As shipped from the factory, the thermostat will maintain a very consistent room temperature, usually within 1°F of the thermostat setting. To achieve a slower on and off cycle, providing a slightly wider temperature span, cut and separate jumper wire W905.

Jumper wire W903 controls the Energy Management Recovery (EMR) feature. EMR allows the thermostat to energize

before

the heating system up to 30 minutes grammed into the thermostat. The thermostat will then energize the system to gradually raise the temperature to your programmed temperature by using the most efficient stage of heat practical.

For example, assume that the thermostat is programmed overnight to 66°F and the room temperature is 66°. If the next program is 7 AM, 70°F (an increase of 4°), the thermostat will start the system 30 minutes before 7 AM. If the temperature in the room is within 2°F of your next programmed temperature, the thermostat will not start the system early.

DO NOT clip jumper wire W903 unless you wish to permanently disable the EMR feature.

the time pro-

Alkaline batteries (3 “AA”–

install “+” ends to the left)

Screw anchors

Reset

button

Mounting

holes

Figure 2. Thermostat base

INSTALLING THE THERMOSTAT

1. Gently remove the cover by pulling it straight off the base. Forcing or prying on the unit may cause damage to the unit.

2. Remove the battery tab. With the batteries installed, the Armchair Programming feature allows you to program the thermostat before installing it on the wall.

3. Pull wires through the hole in the thermostat base and place the base over the hole in the wall. Mark mounting hole locations on the wall using the base as a template.

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

5. Fasten the base loosely to the wall, as shown in fig. 2, using two mounting screws. Place a level against the bottom of the base, adjust until level, and then tighten the screws. (Leveling is for appearance only and will not affect thermostat operation.) If you are using existing mounting holes, or if the holes drilled are too large and do not allow you to tighten the base snugly, use plastic screw anchors to secure the base.

6. Check that the system is turned off. Connect the wires beneath the terminal screws on the base using the appropriate wiring diagram (see figs. 3 through 5).

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

(Instructions continue on page 4.)

NOTE NOTE

The following wiring diagrams show typical terminal identification and wiring. For proper installation, refer to the original manufacturer's instructions.

Thermostat

Control

Circuit

C* R

Energized

in HEAT

Y W

Cooling System

Energized

in COOL

Heating System

Fan

Relay

Figure 3. Typical wiring diagram for single transformer systems

Relay contacts shown are thermostatically operated.

* The 24 Volt neutral connection

to terminal C on the thermostat is not required if you replace

THERMOSTAT

SYSTEM

Hot

24 VAC 120 VAC

Neutral

TRANSFORMER

Thermostat

Control

Circuit

the batteries once a year with fresh “AA” Energizer batteries.

* 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” Energizer® alkaline batteries.

alkaline

CUT AND

TAPE OFF!

Hot

Neutral

TRANSFORMER

Y W

24 VAC120 VAC

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Cooling System

Fan

Relay

Energized

in COOL

Energized

in HEAT

C* R

Heating System

THERMOSTAT

SYSTEM

Hot

24 VAC 120 VAC

Neutral

TRANSFORMER

Figure 4. Typical wiring diagram for two-transformer 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” Energizer batteries.

24 VAC 120 VAC

HEATING

TRANSFORMER

Limit or

Safety

Switches

COOLING

TRANSFORMER

Limit or

Safety

Switches

alkaline

Hot

Neutral

Hot

Neutral

Y W

Cooling System

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Energized

in COOL

Fan

Relay

Energized

in HEAT

Heating System

Thermostat

Control

Circuit

C* R

Common

THERMOSTAT

SYSTEM

Limit or

Safety

Switches

24 VAC

Accessory

Relay N.O.

Contact

Common

Limit or

Safety

Switches

24 VAC 120 VAC

Figure 5. Typical wiring diagram for two-transformer systems with safety circuits in BOTH systems

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