White Rodgers 1F95-1291 User Manual

		Big Blue Humidity Universal Thermostat
		with Humidity/Dehumidity Control and
		Automatic Heat/Cool Changeover Option
		Single Stage, Multi-Stage, Heat Pump
Save these instructions for future use!		Installation and Operating Instructions

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATINGTHIS 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				1F95-1291 Humidity Control Touchscreen Thermostat
Thermostat	Thermostat		Maximum
			Stages
Configuration Options	Applications
			Heat/Cool
Single Stage 1	Gas, Oil, Electric, Heat Only,		1/1
No Heat Pump (SS1)	Cool Only or Heat/Cool
	Systems, 2 or 3 wire Hydronic
Multi Stage 2	Zone (Hot Water or Steam)		2/2
No Heat Pump (MS2)	Systems, 24 Volt or Millivolt
Heat Pump 1	Single Stage Compressor
Single Stage Compressor	Heat Pump Systems - up to 2		3/1
Heat Pump (HP1)	Stages Aux./Emergency Heat
Heat Pump 2	Two Stage or Two Compressor
Two Stage or Two
	Heat Pump systems - up to 2		4/2
Compressor Heat Pump
	Stages Aux./Emergency Heat
(HP2)

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

! 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 Configuration Menu	6
Operating Your Thermostat	10
Programming	12
Troubleshooting	16

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.

www.white-rodgers.com	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 identification 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 fire resistant material (such as fiberglass 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	Switches "On", thermostat
Volt system power available.	runs on batteries.
Hardwired with Battery	Switches "On", thermostat
Back-up, for 24 Volt systems	runs on power directly from
with common connection from	transformer with battery back-
transformer to "C" terminal	up.
on thermostat.
*Battery Powered with	Switches "On", thermostat
Power Stealing Assist,	runs on batteries and
for 24 Volt systems with no	supplemental power drawn
common connection from	through the heat or cool circuit.
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.

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® or Energizer®. 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.

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	L	+	Mounting
		S
	O/B
Hole	Y2	-	Hole
	Y	HM
		W2
		W/E
		6
		DHM

Place Level	Place Level
across Mounting Tabs	across Mounting Tabs
(for appearance only)	(for appearance only)

Rear view of thermostat

2 "AA" Batteries

Power	Power
Stack
Stealing	Stealing
Switch
	Switches

2

WIRING DIAGRAMS

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

System

RC

RH

C

Y

Y2

W/E

W2

G

O/B

6

L

Single Stage 1

Call for cool

No Output

Call for heat

No output

Installer

(SS1)

Configuration

Fault or System

24 volt

Menu selects

Malfunction

“O” or “B” for

common

Blower/Circulator fan

Indicator for

changeover

Power closed

24 volt

24 volt

(optional

energized on a call

Heat Pumps

for system

for cool or Fan On

function. Set

connection for

with “L” terminal

power for

power for

to “O” terminal

SPDT 3-wire

cooling

heating

operation,

(also energized in

energized in Cool

connection.

Multi Stage 2

required

Cool mode-1st

Cool mode-2nd

Heat mode-1st

Heat mode-2nd

heating if configured

zone valve

Original production

& Off mode. Set

for remote

for Electric Heat)

1F95-1291’s

(MS2)

stage

stage

stage

stage

to “B” terminal

sensor)

do not have this

energized in

connection

Heat & mergency

mode

NEUTRAL

24VAC

120VAC

HOT

Single Stage and Multi-Stage Connections

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

CLASS II

Refer to equipment manufacturers’ instructions for specific system

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

TRANSFORMER

wiring information.

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

After wiring, see INSTALLER CONFIGURATION section for proper

transformer system.

thermostat configuration.

You can configure 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

Heat mode-3rd

stage, Emergency

stage, Emergency

Heat

Mode-1st stage

Mode-2nd stage

*Note: Dual Fuel

*Note: Dual Fuel

Pump 1

No Output

option de-

option de-

(HP1)

Installer

energizes Heat

energizes Heat

mode stage 1

mode stage 1

Configuration

Fault or System

24 volt

(compressor)

(compressor)

Menu selects

Malfunction

when auxiliary

when auxiliary

“O” or “B” for

common

Blower/Circulator fan

Indicator for

Heat mode-1st

heat is energized

heat is energized

changeover

Power closed

24 volt

24 volt

(optional

stage,

energized on a call

function. Set

connection for

Heat Pumps

for system

for cool or Fan On

with “L” terminal

power for

power for

Cool mode-1st

to “O” terminal

SPDT 3-wire

operation,

Heat mode-3rd

Heat mode-4th

(also energized in

connection.

cooling

heating

stage,

energized in Cool

required

heating if configured

zone valve

Original production

(Compressor)

stage, Emergency

stage, Emergency

& Off mode. Set

for remote

Mode-1st stage

Mode-2nd stage

for Electric Heat)

to “B” terminal

1F95-1291’s

sensor)

do not have this

Heat

Heat mode-2nd

energized in

*Note: Dual Fuel

*Note: Dual Fuel

connection

Heat & mergency

Pump 2

stage,

option de-

option de-

mode

(HP2)

Cool mode-2nd

energizes Heat

energizes Heat

stage,

mode stages 1

mode stages 1

(Compressor)

and 2 (both

and 2 (both

compressors)

compressors)

when auxiliary

when auxiliary

heat is energized

heat is energized

NEUTRAL

NEUTRAL

24VAC

120VAC

120VAC

120VAC

24VAC

HOT

COOLING

HOT

HEATING

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

CLASS II

CLASS II

TRANSFORMER

TRANSFORMER

Heat Pump Connections

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

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

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 configuration.

3

WIRING DIAGRAMS

Figure 4 – Humidity and Sensors

HM	DHM
Humidification Terminal,	De-energizes on call for
Energizes on call for	Dehumidification to
heat if Humidity setpoint	lower the fan speed.
is above room humidity.	The DHM terminal is
Can also be used to	only used on systems
provide humidification	with a compatible
independent of a call for	dehumidification feature
heat and/or in cooling	that have the required
mode if Automatic	terminal connection on
Humidification is	the contol module or
selected in Configura-	have a relay installed to
tion Menu item #34	lower the fan speed

+	S	-
Supply voltage	Remote	Supply voltage
to remote	temperature	to remote
temperature	sensor signal	temperature
sensor		sensor

Dehumidification 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 dehumidification from the thermostat. The reduction in air flow allows the coil to remove more humidity from the air. The relay should be rated for blower motor load. Since this configuration reduces the air flow in cooling, the

anti-freeze-up control (White-Rodgers CAFC) or equivalent is recommended. The CAFC prevents the air conditioning coil from freezing due to low air flow, dirty filters, 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.

Figure 5 – Typical Wiring for Dehumidifier System

		Normal High
DHM
	No	Med
Relay
		1
90-293Q	2	Low
or equivalent	NC	Dehum
		Speed Fan
N		“Heat Fan Output”
“Cool Fan Output”

1 Normal Cool speed position (DHM energized)

2 Dehum speed mode (DHM de-energized)

N

Figure 6 – Typical Wiring for 120V Humidifier System

HM			R
Relay			HOT
90-290Q
or equivalent		24 VAC		120 VAC
			NEUTRAL
Humidifier	HOT		TRANSFORMER
	NEUTRAL	120 VAC
System

Figure 7 – Typical Wiring for 24V Humidifier System

HM

R

Humidifier

System				HOT

24 VAC

NEUTRAL

120 VAC

TRANSFORMER

4

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 8 – Home Screen Display

	Room
Day of Week	Temperature

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

Time of Day

System

Switch

Fan

Switch

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.

Programming and Configuration Items

1Displays and "Keypad Lockout" when in keypad

lockout mode.

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

2Indicates period of day being programmed.

3RUN SCHEDULE (run program) key.

4SET TIME key or HOLD temperature key.

5Displays "Change Filter"/"Change Pad"/"Change UV Lamp" when the system has run for the programmed filter/humidity pad/UV lamp time period as a reminder to change or clean your filter/humidity pad or to replace UV lamp.

6COPY key or INSTALLER CONFIG key.

7CLEAN DISPLAY key allows 30 seconds to wipe off the display or ADVANCE DAY key for programming.

8Used in programming to set time and in configuration menu to change selections.

9"Hold Until" indicates the time when a temporary hold period will end.

10"Hours" and "Days" displays during steps in installer configuration.

11The 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.

12"Humidity" indicates that the "Set At" display is Humidity setpoint.

13"System On" indicates when heating or cooling stage is energized. "+2" indicates when a second stage is energized.

14"Copy" indicates the copy program feature is being used during programming.

Figure 9 – Programming & Configuration Items

16						17						10					11					12
1	2	3	4	5	6	7	8	9	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	3	3	3	3	3	3	3	3	3	3
									0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9	0	1	2	3	4	5	6	7	8	9
9
8																																						1
18																																						2
14
13																																						20
15																																						3
19					7								6								4										5

15A steady "Cool Savings" display indicates the feature is enabled in the installer menu. A flashing "Cool Savings" display indicates the feature is active.

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

17Display time, remote temperature or humidity.

18"Heat Pump" displays when the system configuration is set in HP1/HP2.

19

"Call for Service" indicates a fault in the heating/cooling systems. It does not indicate a fault in the thermostat.

20Auto Schedule key for Auto Schedule function or Humidity key to display current Humidity and Humidity setpoint.

5