Technical Guide

251933-YTG-V-0913
106 Johnson Controls Unitary Products
* DEHUMIDISTAT
Yellow
Yellow
WIRES LOCATED IN
UNIT CONTROL BOX
LOW VOLTAGE SECTION
* DEHUMIDISTAT CLOSES
ON RISE IN HUMIDITY
R
G
W
R
G
Y 1 Y 1
Y 2
W
Y/Y 2
** = Minimum wire size of 18 AWG
wire should be used for all field
installed 24 volt wire.
2 STAGE
THERMOSTAT
UNIT CONTROL BOARD
TERMINAL STRIP
24 VOLT
TRANSFORMER
**
C
C
PROGRAMMABLE
THERMOSTAT ONLY
R
G
R
G
Y 1 Y 1
Y 2
W 1
W 2
Y/Y 2
** = Minimum wire size of 18 AWG
wire should be used for all field
installed 24 volt wire.
2 STAGE
THERMOSTAT
UNIT CONTROL BOARD
TERMINAL STRIP
24 VOLT
TRANSFORMER
**
CC
PROGRAMMABLE
THERMOSTAT ONLY
W 1
W 2
* DEHUMIDISTAT
Yellow
WIRES LOCATED IN
UNIT CONTROL BOX
LOW VOLTAGE SECTION
* DEHUMIDISTAT CLOSES
ON RISE IN HUMIDITY
Yellow
TYPICAL REHEAT CONTROL WIRING
TWO STAGE THERMOSTAT SINGLE STAGE HEAT
TWO STAGE THERMOSTAT TWO STAGE HEAT