Remote Thermostat Control
When connected to a remote thermostat, the indoor air
temperature sensing is shifted from the unit to the remote
thermostat. For this reason, the units will operate slightly
differently when connected to a remote thermostat. The
following chart shows the unit operation when connected to
a remote thermostat.
Temperature Boost option should not be used with remote
thermostat operation since this will cause the unit to switch to
resistance heat when outdoor temperatures are below 46°F.
See RAK806 Universal Control cover Label on page 15.
17
Remote Thermostat Control Selection Chart For Zoneline Packaged Terminal Units
LOW
ZONELINE
THERMOSTAT
VOLTAGE
SERIES
MODEL
TYPE
FUNCTION
CONDUCTORS
RAK163A1
Mechanical
4
2500
RAK163D1
Digital
Cooling and Heating
5
RAK163P1
Digital Programmable
5
RAK147
Mechanical
Single Stage
6
3500 and
RAK147D1
Digital
Cooling
6
5500
RAK147P1
Digital Programmable
2 - Stage Heating
6
Thermostat wire size - up to 60 feet AWG20 - up to 66 feet AWG18
Feature
3500 Series
5500 Series
Indoor Frost Control
Yes
Yes
Freeze Sentinel
Yes
Yes
Auto Fan Speed
No
No
Electronic Temperature Limiting
No
No
Switch to Resistance Heat Based
Determined by
Determined by
On Indoor Temperature
Remote Thermostat
Remote Thermostat
Switch to Resistance Heat Based
On Outdoor Temperature
Yes
Yes
Reverse Cycle Defrost
–
Yes
Simultaneous Resistance Heat
with Heat Pump
–
No
Resistance Heat Lockout
–
Yes
“Smart Fan” Fan Cycle
Fan ON/AUTO Set On
Fan ON/AUTO Set On
Remote Thermostat
Remote Thermostat
Central Desk Control
Yes
Yes
R
GL
GH
B
Y
W
C
Common - Ground
White - Heater
Yellow - Compressor
Black - Not Used On 2500
Green - High Speed Fan
Green - Low Speed Fan
Red - 24 VAC
1719 Data Manual 2001 2/14/02 3:12 PM Page 17