background image

4

CHECK THERMOSTAT OPERATION 

If  at  any  time  during  testing  your  system  does  not  operate 
properly, contact a qualified service person.
Turn on power to the system.

Fan Operation

If your system 

does not

 have a 

G terminal connection, skip to 

Heating System

.

1.  Move fan switch to

 ON

 position. The blower should begin to 

operate.

2.  Move fan switch to 

AUTO

 position. The blower should stop 

immediately.

Heating System

1.  Move  SYSTEM  switch  to 

HEAT

  position.  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 Heat Pump system should begin to oper

-

ate. However, if the 

Flame icon ( ) and Snowflake icon ( )     

are flashing, the compressor lockout feature is operating.

3.  Adjust temperature setting to 4° above room temperature. 

The auxiliary heat system should begin to operate and the 

Flame

 icon will be flashing.

4.  Press 

 to adjust temperature setting below room tem-

perature. The heating system should stop operating.

Emergency System

EMER bypasses the Heat Pump to use the heat source wired 
to terminal E on the thermostat. EMER is typically used when 
compressor  operation  is  not  desired,  or  you  prefer  back-up 

heat only.

 

 INSTALLER/CONFIGURATION MENU

Cooling System

CAUTION

!

To prevent compressor and/or property damage, if the 
outdoor temperature is below 50°F, DO NOT operate 
the cooling system.

CAUTION

!

Do  not  allow  the  compressor  to  run  unless  the 
compressor  oil  heaters  have  been  operational  for  6 
hours and the system has not been operational for at 
least 5 minutes.

1.  Move SYSTEM switch to 

COOL

 position.

2.  Press 

 to adjust thermostat setting below room tempera-

ture. The blower should come on immediately on high speed, 
followed by cold air circulation

3.  Press 

 to adjust temperature setting above room tem-

perature. The cooling system should stop operating.

THERMOSTAT QUICK REFERENCE 

2

1

3

4

5

8

10

6

9

5

8

7

Figure 5. Thermostat display, buttons, and switches

SU

MALF

EMER

PM

SA

FILTER

AM

FAN

OFF HEAT

 ON   AUTO

COOL

EMER

Before you begin using your thermostat, you should be familiar 

with its features and with the display and the location and op-
eration of the thermostat buttons. Your thermostat consists of 

two parts: the 

thermostat cover

 and the 

base

. To remove the 

cover, pull it straight out from the base. To replace the cover, 
line up the cover with the base and press until the cover snaps 
onto the base.

THE THERMOSTAT BUTTONS AND SWITCHES

(see fig. 5)

1

 Raises temperature setting.

2  Lowers temperature setting.
3   FAN switch (ON

AUTO).

4   SYSTEM switch (

COOL

OFF

HEAT

EMER).

THE DISPLAY

5

 

Flame icon ( ) is displayed when the SYSTEM switch is 
in the HEAT position. 

Flame icon ( ) is displayed flashing 

when  2nd-stage  heat  (Aux  or  Emergency)  is  energized. 
Snowflake icon ( ) is displayed (non-flashing) when the 
SYSTEM switch is in the COOL position. 

Snowflake

 and 

Flame are displayed (flashing) if the thermostat is in lockout 
mode to prevent the compressor from cycling too quickly.

6

  Indicates a malfunction with the system.

7

  Displays current temperature.

8  

EMER

 is displayed flashing when the system switch is in 

EMER position. 

9   Displays current set temperature (this is blank when SYS

-

TEM switch is in the OFF position).

10

  Displays 

FILTER

 when the system has run for the programmed 

filter time period as a reminder to change or clean. 

1.  Move SYSTEM switch to EMER position. EMER will flash 

on the display.

2.  Press 

 to adjust the thermostat above room temperature. 

The Aux heating system will begin to operate. The 

flame 

icon ( ) will display flashing to indicate that the Aux system 

is operating

3.  Press 

 to adjust the thermostat below room temperature. 

The Aux heating system should stop operating.

Содержание 1F89-211

Страница 1: ...sformer systems Optional AA batteries to provide continuous temperature display during loss of AC power SPECIFICATIONS ELECTRICAL DATA Electrical Rating 20 to 30 VAC 50 60 Hz or D C 0 05 to 1 0 Amps L...

Страница 2: ...oca tions on wall using base as a template 4 Move base out of the way Drill mounting holes 5 Fasten base loosely to wall as shown in fig 1 using two mounting screws Place a level against bottom of bas...

Страница 3: ...ly one of the systems remove the transformer of the system with NO safety circuits NOTE Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency See Note L R E SYSTEM MONITOR...

Страница 4: ...to adjust temperature setting above room tem perature The cooling system should stop operating THERMOSTAT QUICK REFERENCE 2 1 3 4 5 8 10 6 9 5 8 7 Figure 5 Thermostat display buttons and switches SU...

Страница 5: ...just under 6 F and the SL setting cycles at approximately 1 F 4 Select backlit display d L OFF or ON The display backlight improves display contrast in low lighting conditions Selecting backlight ON...

Страница 6: ...et to Fan On 4 Check each wire connection to verify they are not shorted or touching together No bare wire should stick out from under terminal screws Try resetting the thermostat as described above I...

Страница 7: ...7 NOTES...

Страница 8: ...ww white rodgers com www emersonclimate com Homeowner Help Line 1 800 284 2925 White Rodgers is a division of Emerson Electric Co The Emerson logo is a trademark and service mark of Emerson Electric C...

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