Field Wiring; Wiring Connections - Weil-McLain GOLD CGt Manual

GOLD CGt Gas-Fired Water Boiler — Boiler Manual
6

Field wiring

For your safety, turn off electrical power supply at
service entrance panel before making any electrical con-
nections to avoid possible electric shock hazard. Failure
to do so can cause severe personal injury or death.
Wiring must be N.E.C. Class 1.
If original rollout thermal fuse element wire as supplied
with boiler must be replaced, use only type
or equivalent. If other original wiring as supplied with
boiler must be replaced, type
must be used.
Boiler must be
tional Electrical Code ANSI/NFPA 70–latest edition.
Electrical installation must
comply with:
1. National Electrical Code and any other national,
state, provincial or local codes or regulations.
. In Canada, CSA C.1 Canadian Electrical Code
Part 1, and any local codes.

Wiring connections

Boiler is shipped with controls completely wired. You
must connect the
(page 3, item 10) to the switch after the boiler is in place.
See page 6 for switch location and mounting. The fac-
tory-supplied wires are 4-feet long. Splice additional
wire if needed.
Figure 25
Field wiring connections —
service switch and thermostat
(or end switch)
provided by installer
Part Number 550-110-290/0107
105°C wire or equivalent
electrically grounded as required by Na-
ambient temperature switch
The CGt control module is polarity-sensitive. The hot and neutral wires must be connected to
the correct leads. A flashing POWER light usually indicates reversed polarity of 10 VAC lead
wires.
Thermostat
1. Connect thermostat as shown on wiring diagram
on boiler.
. Install on inside wall away from influences of drafts,
hot or cold water pipes, lighting fixtures, television,
200°C wire sunrays, or fireplaces.
3. If thermostat has a heat anticipator, set heat antici-
pator in thermostat to match power requirements
of equipment connected to it. If connected directly
to boiler, set for 0.1 amps plus gas valve current.
See information on wiring diagram as shown
in Figure 29
manufacturer's specifications. Wiring diagram on
boiler gives setting for control module and gas valve.
Also see instructions with thermostat.
Junction Box (furnished)
1. Connect 10 VAC power wiring as shown in
ure 25 .
. Fused disconnect or service switch (15 amp. recom-
mended) may be mounted on this box. For those
wires installations with local codes which prohibit instal-
lation of fused disconnect or service switch on boiler,
install a  x 4 cover plate on the boiler junction box
and mount the service switch remotely as required
by the code.
, page 35. For other devices, refer to
Fig-
9