BLUE/RED
PURPLE/WHITE
BLUE/YELLOW
YELLOW
GRAY
BLUE
TRANSFORMER
75 VA
R
C
PURPLE
GRAY/WHITE
ORANGE
BLUE/WHITE
BROWN
BLACK
GREEN
RED
YELLOW
WHITE
BLUE/RED
DISCHARGE AIR SENSOR
FOR OPTIONAL AIR HANDLER
COM
Peak Control Connections
W
O O2
H
G
Y Y2
P
RP
AP
SC
OS
DS
NO
NC
DISCHARGE WATER SENSOR
-
+
YELLOW
ORANGE/BLUE
BLUE
BLUE/WHITE
ORANGE
YELLOW/BLUE
+
P
M
M
-
M
A
5130/5140
YELLOW
5120/5130/5140
LOWER CORE THERMOCOUPLE
YELLOW
RED
UPPER CORE THERMOCOUPLE
RED
INTERNAL SYSTEM WIRING DIAGRAM - LOW VOLTAGE
The outdoor temperature sensor, room thermostat, and peak control device
are connected via low voltage wiring.
System Low Voltage Wiring Diagram
The "R" and "C" positions in the low voltage terminal
strip may be used as a source of 24 VAC for powering
external low voltage devices (60 VA maximum).
A
pp
en
di
x
Comfort Plus Hydronic
Appendix
A.08
HAZARDOUS VOLTAGE: Risk
of electric shock. Can cause
injury or death. All low voltage
wiring must be segregated
from line voltage circuits in
the system.
WARNING