TroubleshootingTips
Dimension
Horizontal model
Vertical model
If…
Then…
Heating system
does not turn
on.
♦Set themode toHeat by pressing theModebutton.
♦Check that theheat temperature setting is set above
the room temperature and “Heat On” shows solidly
in thedisplay.
♦Wait fiveminutes for the heating system to respond.
Cooling system
does not turn
on.
♦Set themode toCool by pressing theModebutton.
♦Check that the cool temperature setting is set below
the room temperature and “Cool On” shows solidly
in thedisplay.
♦Wait fiveminutes for the cooling system to respond.
The fandoesn’t
work.
♦Checkwhether theFanmode is set toAuto
♦Checkwhether the heatingor cooling systemworks.
TheMode
buttondoesn’t
work.
♦Checkwhether the keypad is lockedor not.
♦Checkwhether the system isworking inEnergy
savingmode.
♦Checkwhether the thermostat is off.
TheFanbutton
doesn’t work.
♦Checkwhether the keypad is lockedor not.
♦Checkwhether the system isworking inEnergy
savingmode.
♦Checkwhether the thermostat is off.
TheUp or
Downbutton
doesn’t work.
♦Checkwhether the keypad is lockedor not.
♦Checkwhether the system isworking inEnergy
savingmode.
♦Checkwhether the thermostat is off.
SetupFunctionSettings&Options
Number Description PossibleOptions
1
System type
0Heat only
1Cool only
2 twopipes 1H1Cmanual (Default)
4 four pipesmanual
5 four pipes auto
5
Remote sensor
0OnboardSensor (Default)
1Remote (NTC20K)
9
Temperature
scale
0 ºF
1 ºC(Default)
10
Fan control type
0Cycleonly
1Constant only
(3 speed: Low->Med->High->Low)
2User can chooseCycleor Constant
(3 speed: Low->Med->High->Auto->Low)
(Default)
12
SequenceDead
band for four
pipes
1 ºC (2 ºF)
1.5 ºC (3 ºF)(Default)
2 ºC (4 ºF)
3 ºC (5 ºF)
3.5 ºC (6 ºF)
4 ºC (7 ºF)
4.5 ºC (8 ºF)
5 ºC (9 ºF)
13
CPH valueFor
Heat
1
2
3
4 (default)
5
6
7
8
9
10
11
12
14
CPH valueFor
Cool
1
2
3(default)
4
5
6
18
Display
Temperature
adjustment
-2 ºC(-4 ºF)
-1.5 ºC(-3 ºF)
-1 ºC(-2 ºF)
-0.5 ºC(-1 ºF)
0 ºC(0 ºF) (default)
0.5 ºC(1 ºF)
1 ºC(2 ºF)
1.5 ºC(3 ºF)
2 ºC(4 ºF)
19
Temperature
Displaymode
0 displayRoomTemperature
1 displaySetpoint
2displayboth (default)
20
HeatingRange
Stops
10-32 ºC default
32 ºC
(50-90 ºFdefault
90 ºF
)
21
CoolingRange
Stops
10-32 ºC default
10 ºC
(50-90 ºFdefault
50 ºF
)
22
Keypad Lockout
0 All keysavailable(default)
1 System button Locked out
2Fan andSystem buttonLocked out
3All buttons locked out
23
Remote setback
enablemethod
0Hotel cardNO
1Hotel CardNC
2Button (Default)
24
Remote setback
heating setpoint
Range 10-21ºCDefault :
18 ºC
(Range50-70ºFDefault : 64)
25
Remote setback
cooling setpoint
Range 22-32ºCDefault :
26 ºC
(Range72-90 ºFDefault : 79 ºF)
27
FreezeProtection
0Disabled (default)
1Enabled
APH07CH04
-
R2001EN
