Rehau PD1 Instructions Manual page 18

Wiring Examples
WIRING THE PD2
One Stage Heat with Zone Valve and Cooling
Zone
M
Valve
Cooling
24V (ac)
Class II
Transformer
Typical
Powered Relay
1
T
2
T
L
N
Zone
Pump
Cooling
24V (ac)
Class II
Transformer
(2 of 3)
5
6
7
8
No Power
1 2 3 4
ON
R C S1
Com
1 2
One Stage Heat with Zone Pump and Cooling
5
6
7
8
No Power
1 2 3 4
ON
R C S1
Com
1 2
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Unpowered Relay
3 2
4 1
5 8
6
7
Zone
Pump
Cooling
24V (ac)
Class II
Transformer
Stage 1
Zone
M
Valve
Stage 2
Zone
M
24V (ac)
Valve
Class II
Transformer
One Stage Heat with Zone Pump and Cooling
5
6
7
8
No Power
1 2 3 4
ON
R C S1
Com
1 2
Two Stage with Zone Valves
5
6
7
8
No Power
1 2 3 4
ON
R C S1
Com
1 2