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Menu #
feature
16
Hi fan or aux Heat
17
dual fuel operation
18
Heat Pump economy/
Comfort
%rH user adjust
19
20
front Panel
setback Control
21
dehum. normally
open/Closed
22
oa economizer
offset
© COPYRIGHT 2008 PECO, INC. ALL RIGHTS RESERVED.
range
factory default*
FAN HI,
AUX HEAT
AUX HEAT
OFF,
OFF
0º - 55ºF,
-9.5º – 13.5ºC
OFF,
15
0 – 55 Minutes
Enable / Disable
Enabled
Enable / Disable
Disabled (Off)
Normally Open (NO) /
NC
Normally Closed (NC)
0º to 15ºF,
10°F
0º to 7.5ºC
increment
Comments
-
Selects either Fan High (2 Fan Speeds) or Aux Heat operation.
•
If Fan High is selected, AUX HEAT mode is disabled.
Available modes: OFF, HEAT, COOL, AUTO
•
If Aux Heat is selected, Fan High is disabled.
•
Available modes: OFF, HEAT, COOL, AUTO, Aux HEAT
1ºF, .5ºC
Disables Heat Pump operation if Outside Air Temperature is below
the selected value and a Heating demand exists.
If OFF is selected, and/or AUX HEAT is not enabled in Service
Menu 16, and/or no OA Temperature Sensor is connected, Dual
Fuel Operation is disabled. The Heat Pump operation is then
allowed at all temperatures.
If 0-55°F is selected for the OA Temperature and the OA Tempera-
ture sensor drops below the selected value, the Heat Pump opera-
tion will be disabled only for a Heating demand. When the OA
Temperature increases equal to or greater than the selected OA
value, Heat Pump operation is enabled and Aux Heat operation is
disabled. The Aux Heat output may still be enabled if a valid Aux
Heat demand exists. Heat Pump operation must meet minimum
On and Off time to prevent short cycling.
1 minute
Enables a delay to On for Aux Heat output; default is 15 minutes.
The delay is only enabled during AUTO or HEAT modes.
-
Allows occupant to adjust or not adjust RH levels.
-
This menu item enables SETBACK as a system mode selection. If
SETBACK mode is selected, the thermostat will control to the cur-
rent Setback Heat and Setback Cool Set Points. The thermostat
will not respond to any changes in the Setback input if SETBACK
mode is selected.
During Setback operation, the thermostat will override the default
display to display the Zone Temperature and SETBACK icon. Any
key presses will have no effect on the Setback operation except for
the System Switch Selection button. Pressing the System Switch
button will allow the user to exit the SETBACK mode.
If disabled, Setback is not an available mode and feature. The
thermostat will respond to changes in the Setback input if SET-
BACK mode is not selected.
-
Normally Closed: If RH Demand = Output Disabled
Normally Open: If RH Demand = Output Enabled
1ºF, .5ºC
The adjustable value that is subtracted from the room temperature
and then compared to the OA temperature. If OA ≤ Temp minus
Offset, then OA damper is enabled.
No RH Demand = Output Enabled
No RH Demand = Output Disabled
P/N 69290 3220-2088 REV 0 PAGE 7
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