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TH146-P-2H1C 400-280-014-A 5/23/07 8/11
Configuration Menu
Item HP HVAC Parameters Display Options Default Description
1 √√ Time format
12 Hr / 24
Hr
24 Hr Select the time display format.
2 √√ Early Start On / OF OF
• On: Heating or cooling starts in advance (as determined by the con-
troller) so that the desired temperature is attained at the set times.
• OF (Off): Heating or cooling starts at the set times.
NOTE: Early Start applies for periods 1 and 3 (P1 and P3) only. When
this feature is enabled, heating or cooling will start in advance of the set
time for P1 and P3 but will start at the set time for P2 and P4.
3 √√
Automatic daylight
savings adjustment
OF / 1 / 2 OF
• OF (Off): The function is deactivated.
• 1 : The controller switches to daylight savings time on the first Sunday
of April and to normal time on the last Sunday of October.
• 2 : The controller switches to daylight savings time on the second
Sunday of March and to normal time on the first Sunday of November.
4 √√Temperature format °C / °F °C Select the temperature display format.
5 √ Balance point low
-30 to 10°C
(-22 to 50°F)
-10°C
(14°F)
Set the bP L limit (see section 4.2).
NOTE: Lower bP L below its minimum (- -) if you do not wish to use this
function.
6 √ Balance point high
-5 to 30°C
(23 to 86°F)
5°C
(41°F)
Set the bP H limit (see section 4.2).
NOTE: Raise bP H above its maximum (- -) if you do not wish to use this
function.
7 √ Defrost point
-10 to 15°C
(14 to 59°F)
10°C
(50°F)
Set the defrost point temperature (see section 4.3).
NOTE: Raise the defrost point above its maximum (- -) if you do not wish
to use this function.
8 √ Installation type Ad / nr Ad
Set according to the type of heat pump installation (see section 4.4).
• Ad (add-on): Use this setting when the indoor coils are located down-
stream of the auxiliary heat source. This is generally the case for add-
on installations.
• nr (normal): Select this setting when the indoor coils are located
upstream of the auxiliary heat source. This is generally the case for
new installations.
9 √
Auxiliary
interstage delay
5 to 90 min. 30 min. Set the interstage delay for the auxiliary stage (see section 4.5).
10 √
Low temperature
limit
-10 to 20°C
(14 to 68°F)
5°C
(41°F)
Set the low temperature limit of the plenum (see section 4.6).
NOTE: This function is not used if you lower LLMT below its minimum
(- -) or if the plenum sensor is not connected to the controller.
11 √
High temperature
limit
30 to 90°C
(86 to
194°F)
70°C
(158°F)
Set the high temperature limit of the plenum (see section 4.6).
NOTE: This function is not used if you raise HLMT above its maximum (-
-) or if the plenum temperature sensor is not connected to the controller.
12 √√ Cycles per hour 2 to 6 4
Select the number of heating/cooling cycles per hour. For optimal heating
control, use the setting that matches your system as follows: 3=20 min
(hot water, 90%+ high-efficiency furnace), 4=15 min (gas or oil), 5=12 min
(gas or oil), 6=10 min (electric).
13 √ Heat type GA / EL EL
This setting determines the fan operation in automatic mode when the
system is in heating mode.
• EL (electric heating): The fan starts and stops at the same time as
heating.
• GA (gas or oil heating): The fan starts when the temperature inside
the plenum rises above the Fan Limit (see item 14) and stops when
the temperature drops 12°C below the Fan Limit. Note: The fan will
not start if the plenum temperature sensor is not connected to the con-
troller.
14 √ Fan limit
38 to 90°C
(100 to
194°F)
80°C
(176°F)
This parameter is available only when gas heating is selected (see item 13).
WARNING: FLMT can be used in parallel with an UL353-approved
device but they do not replace such device.
NOTE: The fan will not start if you raise FLMT above its maximum (--).
15 √√ Smart Fan On / OF OF
On: Smart Fan is On (see section 4.7).
OF: Smart Fan is Off.
16 √√
Temperature
setback
0 to 9°C
(0 to 16°F)
0°C
(0°F)
Set the amount of temperature setback when the controller is placed in
Unoccupied mode (see section 6.4).
17 √√
Humidifier
operating mode
Co / HE / Fn Fn
• Co (conventional): The humidifier will operate if the humidity is too
low. If the fan is not already On, it will turn On at the same time as the
humidifier.
• HE (heat): The humidifier can operate only when heating is activated.
• Fn (fan): The humidifier can operate as long as the fan is running,
whether heating is activated or not.
NOTE: The humidifier is disabled when cooling is activated.
Note: Only items 1 to 4 are available when the controller is placed in user mode (SW1-1 switch).
400-280-014-A (TH146-P-2H1C) ENG.fm Page 8 Wednesday, May 23, 2007 4:12 PM