White Rodgers 1F97-0671 User Manual

CAUTION

Save these instructions for future use!

Blue Residential Thermostat

with Automatic Heat/Cool

Changeover Option

For Single Stage Applications

Installation and Operating Instructions for Model:

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

Model Programming Choices

1F97-0671

7 Day 5/1/1 Day Non-Programmable

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

Description

Heat Pump (No Aux. or Emergency Heat) Yes Heat Only Systems Yes

Millivolt Heat Only Systems – Floor or Wall Furnaces Yes

Cool Only Systems Yes Gas or Oil Heat Yes

Electric Furnace Yes

Hydronic (Hot Water) Zone Heat – 2 Wires Yes

Hydronic (Hot Water) Zone Heat – 3 Wires Yes

Wired Remote Temperature Sensor (Indoor or Outdoor) Yes

1F97-0671 Residential Thermostat

SPECIFICATIONS

Electrical Rating:

Battery Power. . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC

Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC

Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined

Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)

Differential (Single Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F

Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)

Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.

Shipping Temperature Range . . . . . . . . . . . . . . . . . -40 to +150°F (-40 to +65°C)

Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4.2"H x 6.4"W x 1.7"D

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

Index Page

Installation 2 Wiring Connections 3 Wiring Diagrams 3 Thermostat Quick Reference 4 Installer Conﬁ guration Menu 5 Operating Your Thermostat 8 Programming 9 Troubleshooting 12

www.white-rodgers.com

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this product may replace a product that contains mercury.

Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www.white-rodgers.com for location to send product containing mercury.

PART NO. 37-6975A

0832

INSTALLATION

WARNING

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

Remove Old Thermostat

Before removing wires from old thermostat, mark wires for terminal identiﬁ cation so the proper connections will be made to the new thermostat.

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.

6. Push excess wire into wall and plug hole with a ﬁ re re sistant material (such as ﬁ berglass 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). For best results, use a premium brand "AA" alkaline battery such as Duracell

gizer

. If the home is going to be unoccupied for an extended

period (over 3 months) and

is displayed, the batteries

or Ener-

should be replaced before leaving.

Power Stealing Switches

The Power Stealing Switches (Fig. 1) should be left in the "On" position for most systems. The information in the following table details the thermostat power method and switch options.

Thermostat Power Method Switch Position/Description

Battery Powered, no 24

Volt system power available.

Hardwired with Battery Back-up, for 24 Volt systems

with common connection from transformer to "C" terminal on thermostat.

*Battery Powered with Power Stealing Assist,

for 24 Volt systems with no common connection from transformer to "C" terminal on thermostat.

Switches "On", thermostat runs on batteries.

Switches "On", thermostat runs on power directly from transformer with battery backup.

Switches "On", thermostat runs on batteries and supplemental power drawn through the heat or cool circuit.

*Power Stealing Assist is very reliable to increase battery life, but on a small number of heating or cooling systems with high impedance electronic modules you may observe one of the following conditions:

1. The furnace draft inducer motor may run with no call for heat.

2. The furnace fan may turn on with no call for heat or may not turn off.

3. The furnace may not turn off when the call for heat ends.

4. The air conditioner may not turn off when the call for cool ends.

If the Power Stealing Assist method is not compatible with your system, place the Power Stealing Switches to "Off". This cancels Power Stealing Assist, operates the thermostat on batteries and corrects the condition.

Figure 1 – Thermostat Base Multi-Stage 1F97-0671

Mounting

Hole

Place Level across Mounting Tabs (for appearance only)

Mounting

Hole

Rear view of thermostat

2 "AA" Batteries

Power Stealing Switches

WIRING CONNECTIONS

Refer to equipment manufacturers' instructions for speciﬁ c system wiring information. After wiring, see CONFIGURATION section for proper thermostat conﬁ guration.

TERMINAL DESIGNATION DESCRIPTIONS

Terminal Designation Description

O/B ........................................... Changeover valve for heat pump energized constantly in cooling and off/heating

Y ............................................ Compressor Relay

G ............................................ Fan Relay

RC ............................................ Power for Cooling

RH ............................................ Power for Heating

C ............................................ Common wire from secondary side of cooling (Optional). Required for fault indication, continuous back-

light operation or remote temperature sensor operation

W ........................................... Heat Relay (Stage 1)

- ............................................ Common (DC) for wired remote temperature sensor

S ............................................ Frequency signal from remote temperature sensor

+ ............................................ Power (DC) to remote temperature sensor

L ............................................ Compressor diagnostic indicator for systems with diagnostic connection typically found on Heat pump

systems or with Copeland's Comfort Alert

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

WIRING DIAGRAMS

Figure 2 – Single Stage or Heat Pump with no Auxiliary Heat with Single Transformer

System

RC RH C Y* W* G O/B 6 L

24 volt

Single Stage

24 volt

power for

cooling

24 volt

power for

heating

common

(optional for

system

operation,

required for

remote

sensor and

system status

indicator)

Call for cool

Call for heat

Blower/Circulator fan

energized on a call

for cool or Fan On (also energized in

heating if configured

for Electric Heat)

*Jumper Y to W required for heat pump systems not compatible with heat pump systems that require an auxiliary heat output.

Figure 3 – Single Stage System (No Heat Pump) with Two Transformers

System

RC RH C Y W6L

24 volt

common

Heat mode-1st

24 volt

power for

heating

(optional for system operation,

required for remote

sensor)

stage,

Cool mode-1st

stage,

(Compressor)

Call for heat

120VAC

HEATING

120VAC

CLASS II

TRANSFORMER

Single Stage

NEUTRAL

24VAC

HOT

24 volt

power for

cooling

Installer Configuration Menu selects

“O” or “B” for

changeover

function. Set

to “O” terminal

energized in Cool

& Off mode. Set

to “B” terminal

energized in Heat

Blower/Circulator fan

energized on a call

for cool or Fan On (also energized in

heating if configured

for Electric Heat)

Power closed

connection for

SPDT 3-wire

zone valve

energized in Cool

& Off mode. Set

System

Indicator for

sytems

with “L” terminal

connection

Installer Configuration Menu selects

“O” or “B” for changeover function. Set

to “O” terminal

to “B” terminal

energized in

Heat

status

NEUTRAL

24VAC

HOT

Power closed

connection for

SPDT 3-wire

zone valve

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

System

status

Indicator for

sytems

with “L” terminal

connection

CLASS II

TRANSFORMER

Single Stage Connections

Refer to equipment manufacturers' instructions for speciﬁ c system wiring information.

This thermostat is designed to operate a single-transformer or two-transformer system.

This thermostat is conﬁ gured for

120VAC

use with the following fossil fuel systems:

SINGLE STAGE gas, oil or

electric. After wiring, see INSTALLER

CONFIGURATION section for proper thermostat conﬁ guration.

NOTE: If continuous backlight or hardwired power input are desired but do not function in both HEAT and COOL modes, cut the heating transformer 24V wires and tape off. Connect the neutral circuit disconnected from the heating transformer to the neutral circuit of the cooling transformer. Disconnect the wire to

120VAC

COOLING

the RH terminal and install a jumper between RH and RC. Depending on the system requirements, replace the cooling transformer with a 75VA class II transformer if needed.

System

Single Stage 3-wire Zone Valve application

Figure 4 – 3-Wire (SPDT) Heat Only Zone Valve Wiring

Jumper

Opens Valv e (4)

Blower/Circulator Fan Energized

24 Volt (Hot) Heat (5)

24 Volt (Hot) Cool

Constant

24 Volt (Com-

mon)

Closes Valv e (6)

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 5 – Home Screen Display

Displays the power level of the 2 “AA” batteries: indicates good power level indicates batteries at about half power. “Change ” indicates batteries are low and should be replaced with 2 new premium brand “AA” Alkaline batteries. (See page 2 for more details)

Room

Temperature

Setting Temperature

Figure 6 – Programming & Conﬁ guration Items

Programming and Conﬁ guration Items

"System On" indicates when heating or cooling stage

is energized.

The word "Hold" is displayed when the thermostat is in the Hold mode. "Temp" is displayed when the thermostat is in a Temporary HOLD mode.

Displays "Change Filter" when the system has run for

the programmed ﬁ lter time period as a reminder to change or clean your ﬁ lter.

Displays "Set" for setpoint when in Run Program mode.

Displays System Mode (Heat, Auto, Cool, Off) or "Time" in menu mode.

Displays Fan mode (On, Auto) "Prog FAN On" or "Run Sched" in Menu mode.

System

Indicator

Displays "Run Schedule", "Schedule", or "Menu". Displays "Save" when Cool SavingsTM is working. Displays "Hold" in programmable mode when not in

Hold mode. Displays Light Bulb in non-programmable mode.

Initially displays "Auto Sched". If Auto Schedule had been used or disabled, then it displays "Cool Savings" when in the Cool Mode. Displays "Copy" in Schedule mode and "Fan" in Fan Schedule mode.

"Call For Service" indicates a diagnostic fault in the heating/cooling system, it does not indicate a fault in the thermostat.

"Keypad Lockout" in Menu mode when selecting key- pad Lockout or in RUN when a keypad Lockout is active.

Fan Indicator

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