White Rodgers 1F95-1291 User Manual

Save these instructions for future use!

CAUTION

Big Blue Humidity Universal Thermostat

with Humidity/Dehumidity Control and

Automatic Heat/Cool Changeover Option

Single Stage, Multi-Stage, Heat Pump

Installation and Operating Instructions

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

1F95-1291

7 Day 5/1/1 Day Non-Programmable

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

Thermostat

Conﬁ guration Options

Single Stage 1

No Heat Pump (SS1)

Multi Stage 2

No Heat Pump (MS2)

Heat Pump 1

Single Stage Compressor

Heat Pump (HP1)

Heat Pump 2

Two Stage or Two

Compressor Heat Pump

(HP2)

Thermostat

Applications

Gas, Oil, Electric, Heat Only,

Cool Only or Heat/Cool

Systems, 2 or 3 wire Hydronic

Zone (Hot Water or Steam) Systems, 24 Volt or Millivolt

Single Stage Compressor Heat Pump Systems - up to 2 Stages Aux./Emergency Heat

Two Stage or Two Compressor

Heat Pump systems - up to 2 Stages Aux./Emergency Heat

Maximum

Stages

Heat/Cool

1/1

2/2

3/1

4/2

1F95-1291 Humidity Control Touchscreen 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 1.5°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. . . . . . . . . . . . . . . . . . . . . . 4.6"H x 5.9"W x 1.2"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 Diagrams 3 Thermostat Quick Reference 5 Installer Conﬁ guration Menu 6 Operating Your Thermostat 10 Programming 12 Troubleshooting 16

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 the product containing mercury.

PART NO. 37-6914D

Replaces 37-6914C

0905

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 snugly, 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 resistant 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.

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 1F95-1291

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.

Mounting

Hole

Place Level

across Mounting Tabs

(for appearance only)

Rear view of thermostat

O/B

HM W2

W/E

DHM

Mounting

Hole

Place Level across Mounting Tabs (for appearance only)

2 "AA" Batteries

Stack Power Stealing Switch

Power Stealing Switches

WIRING DIAGRAMS

Figure 2 – Single Stage or Multi-Stage System

(No Heat Pump) with Single Transformer

System

Single Stage 1

(SS1)

Multi Stage 2

(MS2)

RC RH C Y Y2 W/E W2 G O/B 6 L

24 volt

power for

cooling

24 volt

power for

heating

24 volt common (optional

for system operation,

required

for remote

sensor)

Call for cool

Cool mode-1st

stage

No Output

Cool mode-2nd

stage

Call for heat

Heat mode-1st

stage

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 twotransformer system.

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

Figure 3 – Heat Pump Systems

System

RC RH C Y Y2 *W/E *W2 G O 6 L

Heat mode-2nd

stage, Emergency

stage,

Mode-1st stage

*Note: Dual Fuel

energizes Heat

mode stage 1 (compressor)

when auxiliary

heat is energized

Heat mode-3rd

stage, Emergency

Mode-1st stage

*Note: Dual Fuel

energizes Heat mode stages 1

compressors)

when auxiliary

heat is energized

Heat

Pump 1

(HP1)

Heat

Pump 2

(HP2)

24 volt

power for

cooling

24 volt

power for

heating

24 volt common (optional

for system operation,

required

for remote

sensor)

Heat mode-1st

stage,

Cool mode-1st

stage,

(Compressor)

No Output

Heat mode-2nd

Cool mode-2nd

(Compressor)

No output

Heat mode-2nd

stage

Blower/Circulator fan

energized on a call for cool or Fan On

(also energized in

heating if configured

for Electric Heat)

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 & mergency

mode

Power closed

connection for

SPDT 3-wire

zone valve

Fault or System

Malfunction Indicator for

Heat Pumps

with “L” terminal

connection.

Original production

1F95-1291’s

do not have this

connection

NEUTRAL

24VAC

HOT

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

TRANSFORMER

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

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

Heat mode-3rd

stage, Emergency

Mode-2nd stage

option de-

and 2 (both

*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 deenergizes Heat mode stages 1

and 2 (both

compressors)

when auxiliary

heat is energized

Blower/Circulator fan

energized on a call

for cool or Fan On (also energized in

heating if configured

for Electric Heat)

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 & mergency

mode

Power closed

connection for

SPDT 3-wire

zone valve

Fault or System

Malfunction Indicator for

Heat Pumps

with “L” terminal

connection.

Original production

1F95-1291’s

do not have this

connection

120VAC

CLASS II

120VAC

HEATING

120VAC

CLASS II

TRANSFORMER

24VAC

HOT

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

Heat Pump Connections

If you do not have a heat pump system, refer to ﬁ gures 3 & 4. Refer to equipment manufacturers’ instructions for speciﬁ c system wiring information.

You can conﬁ gure the thermostat for use with the following heat pump systems.

NEUTRAL

24VAC

HOT

TRANSFORMER

120VAC

COOLING

CLASS II

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.

WIRING DIAGRAMS

Figure 4 – Humidity and Sensors

Humidification Terminal,

Energizes on call for

heat if Humidity setpoint

is above room humidity.

Can also be used to

provide humidification

independent of a call for

heat and/or in cooling

mode if Automatic

Humidification is

selected in Configura-

tion Menu item #34

DHM

De-energizes on call for

Dehumidification to

lower the fan speed.

The DHM terminal is

only used on systems

with a compatible

dehumidification feature

that have the required

terminal connection on

the contol module or

have a relay installed to

lower the fan speed

Supply voltage

to remote

temperature

sensor

Remote

temperature

sensor signal

Supply voltage

to remote

temperature

sensor

Dehumidiﬁ cation wiring without an electronically controlled variable speed blower system for single stage compressor system only.

If you have a single stage compressor system see the diagram below. A relay (customer provided) should be installed as shown in Fig 7 to switch the fan speed to the next lower speed on a call for dehumidiﬁ cation from the thermostat. The reduction in air ﬂ ow allows the coil to remove more humidity from the air. The relay should be rated for blower motor load. Since this conﬁ guration reduces the air ﬂ ow in cooling, the

Figure 5 – Typical Wiring for Dehumidiﬁ er System

Normal High

DHM

Relay 90-293Q or equivalent

“Cool Fan Output”

Normal Cool speed position (DHM energized)

Dehum speed mode (DHM de-energized)

Dehum

Speed Fan

anti-freeze-up control (White-Rodgers CAFC) or equivalent is recommended. The CAFC prevents the air conditioning coil from freezing due to low air ﬂ ow, dirty ﬁ lters, low refrigerant pressure, etc. The CAFC snaps onto the suction line close to the evaporator coil as possible and breaks the compressor circuit when the suction line drops below 38 °F and re-make the circuit at 46°F.

Med

Low

“Heat Fan Output”

Humidifier

System

Figure 6 – Typical Wiring for 120V Humidiﬁ er System

Relay 90-290Q or equivalent

Humidifier

System

HOT

NEUTRAL

120 VAC

Figure 7 – Typical Wiring for 24V Humidiﬁ er System

24 VAC

NEUTRAL

TRANSFORMER

HOT

24 VAC

120 VAC

NEUTRAL

TRANSFORMER

HOT

120 VAC

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 8 – Home Screen Display

Day of Week

Room Temperature

Time of Day

Note: If is displayed, the thermostat is battery powered. When battery power remaining is approximately half, will

System Switch

be displayed. 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.

Fan Switch

Programming and Conﬁ guration Items

Displays and "Keypad Lockout" when in keypad

lockout mode. Displays Lockout" when limited range is activated and locked. Displays only "Temperature Limit" when limited range is activated.

Indicates period of day being programmed.

RUN SCHEDULE (run program) key.

SET TIME key or HOLD temperature key.

Displays "Change Filter"/"Change Pad"/"Change UV

Lamp" when the system has run for the programmed ﬁ lter/humidity pad/UV lamp time period as a reminder to change or clean your ﬁ lter/humidity pad or to replace UV lamp.

COPY key or INSTALLER CONFIG key.

CLEAN DISPLAY key allows 30 seconds to wipe off

the display or ADVANCE DAY key for programming.

Used in programming to set time and in conﬁ guration

menu to change selections.

"Hold Until" indicates the time when a temporary hold

period will end.

"Hours" and "Days" displays during steps in installer

conﬁ guration.

The words "Hold At" are displayed when the

thermostat is in the HOLD mode. "Temporary Hold

At" is displayed when the thermostat is in a temporary HOLD mode.

"Humidity" indicates that the "Set At" display is Hu-

midity setpoint.

"System On" indicates when heating or cooling stage

is energized. "+2" indicates when a second stage is energized.

"Copy" indicates the copy program feature is being

used during programming.

and "Temperature Limit" and "Keypad

Indicates when thermostat is calling for Heat or Cool

Set Temperature/Humidity

Temperature UP/Down used for modifying setpoint as well as to navigating the menus

Press to view

Humidity setpoint

Menu key for entering

different modes such as Cleaning, Configuration, Set

Battery Level Indicator

Time and Set Schedule

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.

Figure 9 – Programming & Conﬁ guration Items

16 17

123456789

1 011

11 12

171

516

222

021

272

82930

323

373

33435

839

A steady "Cool Savings" display indicates the feature

is enabled in the installer menu. A ﬂ ashing "Cool Savings" display indicates the feature is active.

"Remote" indicates that the indoor remote temperature

sensor, is being accessed. "Outdoor Remote" indicates the outdoor remote temperature sensor is being accessed.

Display time, remote temperature or humidity.

"Heat Pump" displays when the system conﬁ guration

is set in HP1/HP2.

"Call for Service" indicates a fault in the heating/cooling

systems. It does not indicate a fault in the thermostat.

Auto Schedule key for Auto Schedule function or

Humidity key to display current Humidity and Humidity setpoint.

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