Weil-McLain EG manual Install room thermostat, Wiring multiple zones

Models: EG

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Wiring

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EG, PEG, EGH GAS-FIRED BOILERS SERIES 4 — BOILER MANUAL

 

Wiring

Refer to control supplement for additional information

For your safety, turn off electrical power supply before making any electrical connections to avoid possible electrical shock hazard.

All wiring must be installed in accordance with requirements of National Electrical Code and any additional national, state or local code requirements having jurisdiction. ALL wiring must be N.E.C. Class 1. Boiler must be electrically grounded in accordance with National Electrical Code, ANSI/NFPA No. 70-latest edition.

In Canada, installation must conform to CSA C22.1 Canadian Electrical Code Part 1 and any local codes.

If original rollout thermal fuse element wire as supplied with boiler must be replaced, type 200°C wire or equivalent must be used. If other original wiring as supplied with boiler must be replaced, type 105°C wire or equivalent must be used.

Installer must attach wiring diagram inside jacket door.

A separate electrical circuit with a fused disconnect switch (15 amp. recommended) should be used for the boiler.

A strain relief bushing and adapter must be used at each point where wiring passes through control case (see Figure 23) to protect wiring insulation.

Refer to zone valve manufacturer’s literature for wiring and application. A separate transformer is required to power zone valves. Zoning with circulators requires a relay for each circuit.

Install room thermostat

Install room thermostat on an inside wall. Never install where it will be influenced by drafts, hot or cold water pipes, lighting fixtures, television, rays of the sun or near a fireplace.

Refer to Control Supplement or correct wiring diagram for recommended heat anticipator setting with Standard equipment. Wire thermostat as shown.

Figure 23 Wiring multiple zones

Part Number 550-110-639/0703

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Weil-McLain EG manual Install room thermostat, Wiring multiple zones