Polar Air VTAC, Installation, Operation & Service Manual

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Switch Setting
1
.
S
1 DIP switch
1 2 3 4 5 6 7 8
Temperature Setting
Fan CYC. For Cooling
Electric memory
Freeze protect
Heat Pump Prior
Electric heater
Heat pump
Anti-cold air
-
15
-
Outside Air
Return Air
Inside Air
Supply Air
SW1.3
—
Duct select
The duct select function allows the indoor fan to be
operated at two variable fan speeds.
When set in the down position(OFF), the unit
automatically selects either high or middle fan speed
( for longer ductwork applications).
When set in the up position(ON), the unit automatically
selects either middle or low fan speed (for shorter
ductwork applications).
Sw itch Description Function
Factray
Setting
1# Anti-cold air
ON-Enable ;
OFF-Disable;
ON
2# Heat pump
ON-Enable;
OFF-Disable;
ON
3# Electric heater
ON-Enable;
OFF-Disable;
ON
4# Heat Pump Prior
ON-Heat Pump Prior;
OFF-Electric Heat
Prior; (Only available
for panel control)
ON
5# Freeze protect
ON-Allow the unit to
ensure the indoor
room temperature
does not fall below 40°
F even w hen turned
off; OFF-disable
freeze protection.
ON
6# Electric memory
ON-Enable ;
OFF-Disable;
ON
7#
Fan CYC.
For Cooling
ON-Enable ;
OFF-Disable;
OFF
8#
Temperature
Setting
ON-Set temp.step for
tw o degree ;
OFF-Set temp.step for
one degree
OFF
2
.
SW1
DIP switch
SW1 . 1
,
SW1
.
2
—
Model select
Duct selected
Reserved
1 2 3 4
Model select
SW1 . 1
、
SW1
.
2
—
Model select
1 2 3 4
09K
1 2 3 4
12K
1 2 3 4
18K