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3

INSTALLER MENU 

To prevent changes that may affect system performance, this thermostat has an INSTALLER 

MENU and a USER MENU. The INSTALLER MENU provides access to every option, while the 

USER MENU provides access to items that will not affect system performance. To access the 

INSTALLER MENU press the Menu button for 8 seconds. The display will show item 

05

 in the 

table below. Use Next and Back to navigate through menu items. Press   or   to change a 

menu setting. 

Installer Menu #

(Hold Menu  8 Seconds) 

Description

Default Setting 

(flashing icons)

Settings 

(Press   or  )

05

Outdoor Equipment: selects air 

conditioner (AC) or heat pump (HP) 

equipment as well as the number of 

stage

AC2

AC0

AC1

AC2

HP1

10

Indoor Equipment: selects whether 

the equipment is a gas furnace, elec-

tric furnace or fan only

EL2

FAN

GA1

GA2 (conventional only)

EL1

EL2  (conventional only)

15

Dedicated Emergency: W/E only 

operates in Emergency Aux mode. W

2

 

becomes 

1st stage Aux. Heat

OFF

On

OFF

20

O,B or 

3

 Wire Zone Valve Selection

O

O

B

3

30    

Heat Cycle Rate: how often  

the heat will turn on

MEd

SLO – slow

MEd – medium

FAS – fast

32 

Aux Cycle Rate: how often the 

auxiliary heat will turn on

MEd

SLO – slow

MEd – medium

FAS – fast

35 

Cool Cycle Rate: how often  

the cooling will turn on

MEd

SLO – slow

MEd – medium

FAS – fast

50     

Compressor Lockout: 

protects the compressor  

from short cycling

OFF

On – 

5

 minute delay 

OFF – no delay 

65

Max Heat Limit: maximum set point 

for heat mode

99

47 to 99

66

Minimum Cool Limit: minimum set 

point for cool mode 

45

45 

to 

97

RC/RH Jumper Wire 

 

This thermostat electrically connects 

the RC and RH terminals so a jumper 

wire is not required. If the application 

provides a separate wire for RC and 

RH, clip the RC/RH jumper. This will 

isolate both terminals so they can be 

independently used. 

Battery Location

Premium AA alkaline batteries are 

required when C-wire is not available. 

When C-wire is available, the batteries 

provide a back-up source of power 

(this will maintain the clock in the 

event of a power outage).

(Installer Menu continued on next page)

4

TEST EQUIPMENT

 Turn on power to the system. 

Fan Operation 

If your system does not have a G terminal connection, skip to Heating System

1.)

  Press the fan button to select the On position. The blower should begin to operate. 

2.)

  Press the fan button to select the Auto position. The blower should stop immediately. 

Heating System

1.)

  Press the System button to select the Heat position. Heat Pumps only - if the auxiliary 

heating system has a standing pilot, be sure to light it.  

2.)

 Press   to adjust thermostat setting to 

1° 

above room temperature. The heating system 

should begin to operate and the thermostat will indicate Heat On

3.)  For heat pump with auxiliary- 

Press   to adjust thermostat setting to 

3° above room 

temperature. The auxiliary heat should begin to operate and the thermostat will indicate 

Heat On Aux.

4.) 

Press 

 

to adjust thermostat setting 

1° 

below room temperature. The heating system 

should stop operating and the Heat On icon will disappear.

Auxiliary System ( only for heat pumps with auxiliary) 

1.)

  Press the System button to select the Aux position. 

2.)

 Press   to adjust thermostat setting to 

1° 

above room temperature. The auxiliary heating 

system should begin to operate and the thermostat will indicate Heat On Aux

3.) 

Press 

 

to adjust thermostat setting 

1° 

below room temperature. The auxiliary heating 

system should stop operating and the Heat On Aux icon will disappear.

Cooling System

1.)

   Press the System button to select the Cool position. 

2.) 

Press   to adjust thermostat setting 

1° 

below room temperature. The blower should 

come on immediately on high speed, followed by cold air circulation. The thermostat will 

indicate Cool On. There can be up to a 

5

 minute delay. (see INSTALLER MENU, item

 50) 

3.) 

Press   to adjust thermostat setting to 

1° 

above room temperature. The cooling system 

should stop operating and the Cool On icon will disappear.

Installer’s Menu #

(Hold Menu 8 Seconds) 

Description

Default Setting 

(flashing icons)

Settings 

(Press   or )

74        

Schedule Type: set as either 

7

-Day, 

5-1-1

 Day or Non-Programmable 

5

7 – 7

 Day

5 – 5-1-1 

Day

0

 – Non Programmable 

75

Defines periods per day 

4

2 -leave, return

-wake, leave, return, sleep

76 

 

   

Early Start: starts heating or 

cooling early so your programmed 

temperature is reached by the 

programmed time

OFF

On – start early 

OFF – start at program 

period time

79

Fahrenheit or Celsius

°F

°F – Fahrenheit

°C – Celsius

81

      

Temperature Display Adjustment: 

adjust the displayed “Room 

Temperature”

0

-5 to +5

83

Continuous Display Light: keep 

the backlight always on – “C” wire 

required

OFF

On  – always on

OFF – momentarily

86

Change Air Filter: set up a monthly 

reminder

OFF

1 to 12 –

 reminder time      

                   (months)

OFF – no filter reminder

88

Auto Changeover: thermostat 

automatically switches between 

heat and cool

OFF

On  – enable auto

OFF – disable auto

99   

Keypad Lock: prevent unwanted 

changes to the thermostat

OFF

On  – disable buttons

OFF – all buttons are active 

INSTALLER MENU (C0ntinued)

 

Note: If Starting Soon is shown on the display, the compressor lockout feature is operating. There will 

be up to a 

minute delay before the compressor turns on (see INSTALLER MENU, item 

50

).

Summary of Contents for 1F85U-22PR

Page 1: ...alves Configurable as O or B ReversingValve or 3 wire zone heat power close Y 1st Stage Compressor conventional or heat pump G Fan Relay W E 1st Stage Heat conventional 1st Stage Auxiliary Heat heat pump Can operate as Emergency Heat only See Installer Menu 15 C Common wire for 24V optional with batteries L Heat Pump Malfunction Diagnostic terminal input signal requires common Y2 2nd Stage compres...

Page 2: ... system has a standing pilot be sure to light it 2 Press to adjust thermostat setting to 1 above room temperature The heating system should begin to operate and the thermostat will indicate Heat On 3 For heat pump with auxiliary Press to adjust thermostat setting to 3 above room temperature The auxiliary heat should begin to operate and the thermostat will indicate Heat On Aux 4 Press to adjust th...

Page 3: ...utton and release Description Default Setting flashing icons Settings Press or 01 ScheduleType set as either 7 Day 5 1 1 Day or Non Programmable 5 7 7 Day 5 5 1 1 Day 0 Non Programmable 02 Defines periods per day 4 2 leave return 4 wake leave return sleep 03 Early Start starts heating or cooling early so your programmed temperature is reached by the programmed time OFF On start early OFF start at ...

Page 4: ...or does not respond to key presses the thermostat should be reset by removing the batteries for 2 minutes This reset will not change the menu settings or program If the condition persists after reinstalling the batteries replace the thermostat To conveniently reset only the schedule and user settings back to factory defaults press Menu and Backlight buttons at the same time and hold until the disp...

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