Section 9, The Space Heating Module (optional)
Harness 2049-10
4 pin
Space
Heating
Module
4 pin
4 pin
H
a
rn
e
s
s
2
0
4
8
-1
0
V3.1 Water Heater Zone Board
2 pin
2 pin
6 pin
Zone Plug 2052-10
4 pin
Red
Black
Heat Available
Thermostat
Domestic Water Pump
Cabin Fan Pump
Cabin Fan
Power
Cabin
Fan
Thermostat
C
abi
n Fan (
Y
el
lo
w
)
C
a
bi
n
G
rou
nd (
Y
el
lo
w
/Bl
ac
k)
Water
Heater
Remote
4 pin
4 pin
T
h
e
rm
o
st
a
t R
e
tu
rn
(P
in
k)
The
rm
o
st
at
O
u
t (
R
ed)
Water Heater
2 pin
2 pin
AC Box
110 VAC
Ground
Green
White
Black
Battery
_
+
Red
Black
20A
Fuse
H
a
rn
e
s
s
2
0
5
4
-1
0
4 pin
4 pin
Master
Disconnect
20A
Fuse
Page-1
Clip – On
Aquastat
Figure 9-3: Space Heating Module and Zone Board Electrical Hookup
International Thermal Research
9-9
