White Rodgers 1F95-0671 User Manual

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Blue Universal Thermostat

with Automatic Heat/Cool

Changeover Option

Single Stage, Multi-Stage, Heat Pump

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

1F95-0671

7 Day 5/1/1 Day Non-Programmable

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

Description

Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes

Systems with up to 4 Stages Heat, 2 Stages Cool 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

Dual Fuel Feature (Heat Pump Mode, Outdoor Remote

uired

Re

Ye s

1F95-0671 Universal 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

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

Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . . Heat 1.2°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

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.

Index Page

Installation 2
Wiring Diagrams 3
Thermostat Quick Reference 5
Installer Confi guration Menu 6
Operating Your Thermostat 9
Programming 10
Troubleshooting 14

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. 37-6979A

www.white-rodgers.com

0908

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

should be replaced before leaving.

®

or Ener-

Power Stealing Switch

The Power Stealing Switches (Figure 1, rear view) 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.

*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.

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.

Figure 1 – 1F95-0671

Rear view of thermostat

*

* A1 For Damper Control Not Applicable To This Model.

2 "AA" Batteries

Power Stealing
Switches

Mounting

Hole

Place Level
across Mounting Tabs
(for appearance only)

Thermostat Base

across Mounting Tabs
(for appearance only)

Place Level

Mounting

Hole

2

WIRING DIAGRAMS

Refer to equipment manufacturers' instructions for specifi c
system wiring information. After wiring, see CONFIGURA-

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

TION 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

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 (Optional). Required for fault indication, continuous back-

light operation or remote temperature sensor operation 6 Powered closed 3rd wire for 3-wire zone valve

W/E ........................................... Heat Relay/Emergency Heat Relay (Stage 1) (3rd Stage Heat in HP2)

W2 ............................................ 2nd Stage Heat (4th Stage Heat in HP2)

- ............................................ 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

Figure 2 – Single Stage or Multi-Stage System (No Heat Pump)

with Single Transformer

Jumper

System

Single
Stage 1

(SS1)

Multi­Stage 2

(MS2)

Comfort Alert II Module

or Similar System

Diagnostic Module

See Module Instructions

for details

L

Diagnostic
Indicator
Input
or
System
Malfunction
Switch
Input

O/B

O

Energized Constantly

in

Cool Mode

B

Energized Constantly

in Heat, Off,
Emergency

Mode

Y

Cool Mode
1st Stage

Y2

No
Output

Cool
Mode
2nd
Stage

W/E

Heat
Mode
1st Stage

W2

No Output

Heat Mode
2nd Stage

G

Blower/
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)

RH

24 Volt
(Hot)
Heat

* Common connection required for diagnostic or malfunction indication.

RC

24 Volt
(Hot)
Cool

C

Optional*

24 Volt

(Com-

mon)

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

Single Stage and Multi-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.

You can confi gure the thermostat for use with the following
systems:

Figure 3 – Single Stage or Multi-Stage System (No Heat Pump)

with Two Transformers

O/B

O

Energized Constantly

in

Cool Mode

B

Energized Constantly

in Heat, Off,
Emergency

Mode

Y

Cool Mode
1st Stage

No
Output

Cool
Mode
2nd
Stage

120VAC

HEATING

System

Single
Stage 1

(SS1)

Multi­Stage 2

(MS2)

CLASS II

TRANSFORMER

NEUTRAL

24VAC

HOT

L

Diagnostic
Indicator
(Optional)

SINGLE STAGE (SS 1) gas, oil or electric.

MULTI-STAGE (MS 2) gas, oil or electric.

After wiring, see INSTALLER CONFIGURATION section for
proper thermostat confi guration.

Jumper

RH

W/E

Y2

Heat
Mode
1st Stage

W2

No Output

Heat Mode
2nd Stage

G

Blower/
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)

24 Volt
(Hot)
Heat

Remove Jumper Wire
between RH & RC

RC

Optional

24 Volt

24 Volt

(Hot)

(Com-

Cool

mon)

C

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

COOLING

3

WIRING DIAGRAMS

System

Heat Pump 1

(HP1)

Heat Pump 2

(HP2)

Comfort Alert II Module

or Similar System

Diagnostic Module

See Module Instructions

for details

L

Diagnostic
Indicator
or System
Malfunction
Switch

O/B

O

Energized in

Cool Mode

B

Energized in

Heat, Off,

Emergency

Mode

* Common connection required for diagnostic or malfunction indication.

+

Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize.

Y

Heat and
Cool Mode
1st Stage
(Compressor)

Figure 4 – Heat Pump Systems

Y2

No
Output

2nd
Stage
(Com­pressor)

+

W/E

Heat Mode - 2nd
Stage, Emergency
Mode - 1st Stage

+

Note: Dual Fuel option

de-energizes Heat mode

stage 1 (compressor)

when auxiliary heat

is energized

Heat Mode - 3rd
Stage, Emergency
Mode - 1st Stage

+

Note: Dual Fuel option

de-energizes Heat mode

stage 1 (compressor)

when auxiliary heat

is energized

+

W2

Heat Mode - 3rd
Stage, Emergency
Mode - 2nd Stage

+

Note: Dual Fuel option

de-energizes Heat mode

stage 1 (compressor)

when auxiliary heat

is energized

Heat Mode-4th
Stage. Emergency
Mode - 2nd Stage

+

Note: Dual Fuel option

de-energizes Heat mode

stage 1 (compressor)

when auxiliary heat

is energized

G

Blower/
Circulator Fan
Energized on
Call for Heat
or Cool.
Set Elect/Gas
Option for
Emergency
mode

Jumper

RH

24 Volt
(Hot)
Heat

RC

24 Volt
(Hot)
Cool

C

Optional*

24 Volt

(Com-

mon)

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

Heat Pump 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.

You can confi gure the thermostat for use with the following
systems:

Figure 5 – 3-Wire (SPDT) Heat Only Zone Valve Wiring

W

Opens
Val ve
(4)

G

Blower/Circulator
Fan Energized

System

Single Stage
3-wire
Zone Valve
application

6

Closes
Val ve
(6)

Y

HEAT PUMP TYPE 1 (HP 1). Single stage compressor

system; gas or electric backup.

HEAT PUMP TYPE 2 (HP 2). Multi-stage compressor or two

compressor system with gas or electric backup.

After wiring, see INSTALLER CONFIGURATION section for
proper thermostat confi guration.

Jumper

RC

C

Constant

24 Volt

(Com-

mon)

RH

24 Volt
(Hot)
Heat
(5)

24 Volt
(Hot)
Cool

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

4

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 5 – Home Screen Display

Battery Level Indicator
Indicating the current power level
of the 2 “AA” batteries:
Full power remaining.
Half power remaining
Change The batteries should
be replaced at this time with 2 new
premium brand “AA” Alkaline batteries.
(See page 2 for more details)

Room

Temperature

Setting
Temperature

Figure 6 – Programming & Confi guration Items

8

12

3

1

9

5

13

6

Programming and Confi guration Items

"System On" indicates when heating or cooling stage

1

is energized. "System On +2" indicates when addi
tional stages are on.

2

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

3

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

4

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

Displays System Mode (Heat, Em, Auto, Cool, Off)

5

or Time in menu mode.

Displays Fan mode (On, Auto) "Prog FAN On" or

6

"Run Sched" in Menu mode.

System

Indicator

2

4

7

7

Displays "Run Schedule", "Schedule", or "Menu".

8

Displays "Save" when Cool Savings

Displays "Heat Pump" when system is confi gured

9

as Heat Pump thermostat.

Displays "Hold" in programmable mode when not in

10

Hold mode. Displays Light Bulb in non-program-
mable mode.

Initially displays "Auto Sched". If Auto Schedule had

11

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

12

heating/cooling system, it does not indicate a fault in the
thermostat.

"Keypad Lockout" in Menu mode when selecting key-

13

pad Lockout or in RUN when a keypad Lockout is active.

Fan
Indicator

10

11

TM

is working.

5