White Rodgers 1F95-1280 Operations Instructions download pdf (Page 8)

The Fast Cool feature operates the cooling stages in the

same manner as Fast Heat, On or Off when the tempera-

ture is lowered below the room setting.

28. Select Remote Temperature Sensor Enabled – ON

enables a remote sensor connected to thermostat and

displays the sensor temperature in the clock digits. OFF

(default) indicates no remote sensor connected or en-

abled.

29. Selects Remote Sensor as Indoor or Outdoor – If 28

is enabled, select the remote to be Remote In (Indoor,

F145-1328) or Outdoor Remote (Outdoor, F145-1378).

Default is Remote In.

30. Select Local Sensor Disable – If 29 is selected Indoor,

the thermostat Local Sensor can be disabled so the

displayed temperature will be from the Remote Sensor.

Default is On LS. To disable the Local Sensor, change

selection to OFF LS.

31. Select Dual Fuel Feature (dF) – This feature is appli-

cable only in heat pump modes (HP1, HP2). Enables (On)

or disables (Off) dual fuel feature of thermostat.

32. Select Dual Fuel Temperature – With dF selected On

and outdoor remote sensor available, select the outdoor

temperature the thermostat will use to determine when to

switch to gas heat and shut down the compressor. When

the outdoor temperature falls below the selected tem-

perature the gas heat will begin. Default is 35°, but can be

set in the range of -5 to 50°. A lower setting will delay the

start of gas heat allowing cooler temperature in the home.

33. Select Dual Fuel Setting – With DF selected On and no

outdoor sensor, select the dF setting from 01-09. Fac-

tory default is 05. The dF setting inﬂuences when second

stage comes on. The factory default creates a separation

of approximately 1

F between stages. Increasing the set-

ting decreases the separation between stages. Decreas-

ing the value increases stage separation. This adjust-

ment allows a small change in the operation of your heat

pump system versus your auxiliary system relative to the

thermostat adjustment. The higher the number the sooner

the auxiliary stage energizes for better comfort. The lower

the number the longer period of time before auxiliary is

energized for more economy.

Note: This setting is not minutes or degrees. It is numeric

setting that will inﬂuence the internal thermostat calcula-

tion for staging.

34. Select Compressor Delay (Cd) – Applicable only in

heat pump modes (HP1, HP2). After the auxiliary heat is

turned on, the compressor(s) shut down is delayed for the

time selected (in seconds). This delay is factory set to 60,

but can be set in the range of 0 to 99.

35. Select Auxiliary Off (AO) – Applicable only In heat pump

modes (HP1, HP2) with outdoor sensor available. Select

the temperature that will inhibit the auxiliary heating

stage. As long as the outdoor temperature is above the

selected temperature, the auxiliary heat will not turn on.

The default setting is 60°, but can be set in the range of

-5 ° to 79°.

INSTALLER/CONFIGURATION MENU

If indoor temperature drops below 45° because of a pos-

sible heat pump malfunction, the thermostat will turn off

the pump and switch to Auxiliary heat. "Call for Service"

will display on screen.

There are two ways the thermostat will return to normal

heat pump operation:

• Pressanykeytoretrythepumpanderasethe"Call

for Service" icon.

• WhensetpointisachievedonAuxiliary,systemwill

return to heat pump operation on next call for heat.

36. Select Pre-Occupancy Purge (PP) – A selection of -O-

opens the damper at the Day (occupied) program period.

A selection of 1, 2 or 3 opens the damper early, 1, 2 or 3

hours before the Day (occupied) time in the program. This

allows 1, 2 or 3 hours of fresh air circulation before people

arrive.

37. Select Economizer or Damper Operation – This option

conﬁgures the thermostat A1 terminal for Commercial

Occupied Damper systems or Economizer systems. Com-

mercial Occupied Damper systems open a damper during

all Day (occupied) program time periods. Economizer

systems use the A1 terminal to open an economizer and

use outside air as the ﬁrst cooling stage.

Select EC "Off" (Economizer Off) for Commercial Oc-

cupied Damper systems that require the A1 terminal to be

energized constantly during Day (occupied) program time

periods. With EC Off, the cooling terminals and stages

operate as follows: Y = Stage 1 cooling, Y2 = Stage 2 cool-

ing. A1 is energized constantly during Day (occupied) time

periods.

Select EC "On" (Economizer On) for Economizer systems

that use outside air for the ﬁrst stage of cooling. With EC

On selected, the cooling terminals and stages operate

as follows: A1 = Stage 1 cooling, Y = Stage 2 cooling, Y2

= Stage 3 cooling. EC "On" also runs the ﬁrst stage of

cooling (economizer) longer than a standard (compressor)

cooling stage because economizers are more efﬁcient

with a longer run time.

41 & 42. Change UV Lamp – This feature allows the thermo-

stat to display the words "Change UV Lamp" (Call for

Service of UV bulb) after a set time of UV bulb operation.

This is a reminder to maintain your UV system at opti-

mum level of operation. When enabled, the factory set

interval for "Change UV Lamp" to be displayed is 350

days of UV bulb operation and can be adjusted in 25 day

increments. This should be adjusted with respect to the

bulb’s recommended maintenance schedule.

When "Change UV Lamp" is displayed, you can clear it

by pressing Clean Display.

43 & 44. Select Change Filter Run Time – This feature al-

lows thermostat to display "Change Filter" after a set

time of blower operation. This is a reminder to change

or clean your air ﬁlter. This time can be set from 25 to

1975 hours in 25 hour increments. A selection of OFF will

cancel this feature. When "Change Filter" is displayed,

you can clear it by pressing Clean Display. In a typical ap-

plication, 200 hours of run time is approximately 30 days.

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White Rodgers 1F95-1280 Operations Instructions Page 8

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