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Boiler-side wiring & controls, Manual, Circulators – Weil-McLain PLUS LINE PLUS-E017-A/1206 User Manual

Page 47: Zone valves, Wiring requirements

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Part Number PLUS-E017-A/1206

Manual

• Installation • Start-Up • Usage • Maintenance • Parts

Electrical shock hazard.

Can cause severe personal injury, death or substantial property damage.

Disconnect power before installing and/or servicing.

1. All wiring must be a minimum of 18 gauge and installed in accordance with:

• U.S.A. — National Electrical Code and any other national, state or local code

requirements having jurisdiction.

• Canada — CSA C22.1 Canadian Electrical Code Part 1 and any other national,

provincial and local code requirements having jurisdiction.

2. If original wire as supplied with appliance must be replaced, Type 90° C or its equivalent

must be used.

. Refer to control component instructions packed with boiler for application information.

. An optional service switch may be installed in water heater electrical circuit. This switch

would only shut off the water heater, not the home heating system. Do not shut off water

heater if there is a chance of freezing.

. All electrical contacts are shown with no power applied - off shelf condition.

Circulators

. Size priority relay for total amp draw of all circulators.

Zone Valves

. Size transformer for maximum load of all zone valves.

8. Priority valve (Figures 0–1, pages 8–9) is closed when heating domestic water.

Wiring requirements

Table 5

These boiler models

should use domestic

priority when used with

heater GOLD Plus 30

Boiler Models

CGa

25/3/4/5/6/7/8

GV, CGi, CG, CGs, CGx

3/4/5/6

EG

35/40/45/50

68, GO

2/3/4

D

Boiler-side wiring & controls

(except

Gas)

continued

Domestic priority is recommended for the boilers listed in Table ,

below, when used with GOLD Plus 0 water heaters: