69-2072—05 12
Wiring
HVAC
THERMOSTAT
HUM
HUM
24V
24V
GYWRRc
GYWRC
24V
24V
HUM
HUM
C
GT
R
RT
GF
EXT
RECOMMENDED
PRESSURE
SWITCH
M27341
TrueSTEAM - INTERNAL
NOTE: IF PRESSURE SWITCH IS USED, ENSURE DIP 5 IS IN ON POSITION.
FACTORY
INSTALLED
JUMPER
68
40
55
1215
:
76
%
%
In
Out
PM
TrueIAQ
Wiring TrueIAQ
®
with a
powered humidifier.
69-2072_C.indd 12 7/31/2008 2:04:26 PM