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Grundfos.bk Page 9 Wednesday, June 2, 2010 1:16 PM
6. Electrical installation/
wiring
Warning
Risk of electric
shock. All electrical
work should be
performed by
qualified personnel in
accordance with the
latest edition of the
National Electrical
Code, state, and local
regulations.
To "T" terminals
on boiler or relay
board
Fig. 6
Wiring options
Warning
Do not connect high
voltage, i.e. any
power over 24 V AC/
DC to actuator.
Incorrect wiring can
damage the actuator
and/or end switch.
Check wiring and
voltage supply before
applying power.
•
Only connect 24 V voltage
supply, Class 2.
•
See fig. 6 for wiring options.
Thermostat
M
O
T
O
R
Zone control
Thermostat
S
M
W
O
I
T
T
O
C
R
H
24 V
panel
9
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