Specifications
M
1 2 3 4 5 6 7 8 9 10 11 12 13 14
B2
P
M
Optional
e)
Optional
Optional 
f)
Red
2.7.1
Yellow
Brown
Brown
Blue
Blue/White
Yellow
Red
Red/Yellow
Red
Brown
4 3 2 1
b)
a)
d)
c)
4 3 2 1
Brown
RedRed
DIAG
TRS
Brown
a) Power from battery “+”.
b) Switch control to heater.
c) Power from battery “-”.
d) Diagnostics from heater.
e) To vehicle dimmer switch for light display.
f) To vehicle ignition accessories for continuous
 operation of heater.
12 11 10 987654321
3.2.9
5.1
2.7
Red
Brown
Black/Red
Green
Blue/White
Blue
Yellow
Black/White
S1 B1
1
2
3
4
5
6
7
8
8 7 6 5 4 3 2 1
1 2
3 4
Brown
Black
Brown
Violet
Brown
White
Green
Green
Red
Red
Blue
Blue
Brown
Blue
1.1
2.12
1.2
2.2
1.5
1.13
1.12
h)
S1 B1
B3
2.1
B2
2  4 6 8
1 3 5   7
8 6 4  2
7  5  3   1
1 3 5 7 9 11 13
87
87a
85
30
86
2 4 6 8 10 12 14
Red
K(15)
15(K)
Yellow
Brown
31
0
3.1.1
7 Day timer
Push/Pull switch
3.12
HYDRONIC D5 SC 12 Volt
Model   25 2098 05
25 2219 05
25 2257 05
Wiring Harness P/N:
    20 2900 70 05 03
 Internal FMP
    No Blower Relay
REVISION LEVEL A - 12/09/13
8
Wiring Diagrams
21










