
17 of 20 © 2009 D 512 - 09/09
Two Stage with Zone Pumps
Two Stage with Zone Pumps
Power: 24 V ± 10% 60
Hz 3
VA
Relay: 24
V (ac) 2
A
Class 2
938-02
512
Switch Settings
:
Installer/User
2 Stage/Heat-Cool
Made
in Can
ada
Mee
ts Class B:
Canadian
ICES
FCC
Part 15
2
1
8
7
3
4
5
6
2
1
8
7
3
4
5
6
Stage 2
Zone
Pump
Stage 1
Zone
Pump
24 V (ac)
Class 2
Transformer
Unpowered
Relay
Unpowered Relay
Power: 24 V
± 10% 60
Hz 3
VA
Relay:
24
V (ac) 2
A
Class 2
938-02
512
Switch Settings
:
Installer/User
2 Stage/Heat-Cool
T
T
1
2
L
N
T
T
1
2
L
N
Stage 2
Zone
Pump
Stage 1
Zone
Pump
24 V (ac)
Class 2
Transformer
Made
in Can
ada
Mee
ts Class B:
Canadian ICES
FCC
Part 15
Typical Powered
Relay
Typical Powered
Relay
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