Weil-McLain CGI-4E Boiler User Manual


  Open as PDF
of 68
 
Part Number 550-110-711/1108
31
GOLD
CGi-4E Gas-Fired Water Boiler — Boiler Manual
Field wiring6
Thermostat
1. Connectthermostatasshownonwiringdiagram
on boiler.
2.
Install on inside wall away from influences of
drafts, hot or cold water pipes, lighting fixtures,
television, 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 31, page 40. For other devices, refer to manu-
facturer’s specifications. Wiring diagram on boiler
gives setting for control module and gas valve. Also
see instructions with thermostat.
Junction Box (furnished)
1. Connect 120VAC power wiring as shown in
Figure 27.
2. Fused disconnect or service switch (15 amp. recom-
mended) may be mounted on this box. For those
installations with local codes which prohibit installa-
tion of fused disconnect or service switch on boiler,
install a 2 x 4 cover plate on the boiler junction box
and mount the service switch remotely as required
by the code.
For your safety, turn off electrical power supply at
service entrance panel before making any electrical
connections
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 200°C wire
or equivalent. If other original wiring as supplied with
boiler must be replaced, type 105°C wire or equivalent
must be used.
Boilermustbeelectrically grounded as required by
NationalElectricalCodeANSI/NFPA70–latestedi-
tion.
Electrical installation must
comply with:
1. NationalElectricalCodeandanyothernational,
state, provincial or local codes or regulations.
2. InCanada,CSAC22.1CanadianElectricalCode
Part 1, and any local codes.
Wiring connections
Boilerisshippedwithcontrolscompletelywired.
Figure 27
Field wiring connections —
service switch and thermostat
(or end switch)
provided by installer
TheCGi-4E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120VAClead
wires.
 previous next