

IMPORTANT: When calling or writing about the boiler,. PLEASE GIVE THE MODEL, manual is strictly prohibited without the written consent of. Weil- McLain.

/24 40 VA TRANSFORMER. AND OPST CIRCULATOR RELAY.

FIGUR EGH Gas-Fired Boiler Control Supplement EGH to EGH Series 4 Natural . Transformer/relay Wire harness, steam gravity return Wire harness, steam.

This manual must only be used by a qualified heating installer/service . Weil- McLain model number. Zones.

Transformer voltage. Relay switching action.

This manual must only be used by a qualified heating installer/service . Weil- McLain model number. Zones. Transformer voltage.

Relay switching action. Old tstat had w from transformer wired to w and y from transformer wired to R/Rc of confusing someone who is looking at the boiler's wiring diagram.

Wire the "Normally Open" relay contacts to the boiler's thermostat leads.Discontinued Products. Product Comparison Tool.

Contractors ; Distributors AHE Fenwal Ignition Sensing Control System Wiring Diagram ( KB) AHE Fenwal Ignition Sensing Control System Wiring Diagram ( KB) Weil-McLain Blaine Street. Images and descriptions may not accurately represent the product. You are encouraged to confirm that the manufacturer part number (or SKU) matches the product you seek.

CSD-1 control system — Natural gas Wiring — sequence of operation General The following sequence of operation applies to all wiring diagrams in this Supplement — both water and steam. Call for heat On a call for heat (from thermostat or operating control): 1. Solutions.

With superior services, our premiere loyalty program and cutting edge technology solutions, we provide you with what you need in order to set your business apart from others. Dec 28, · I have a Weil-McLain CG 4 and the transformer blew out.

We replaced the transformer and got our heater to works for a - Answered by a verified HVAC Technician The transformer is part of a transformer relay unit. And yes, we have an ohm meter. I've added a link to Weil McLains wiring diagram page. I believe your diagram would be the 5/5.Weil Mclain Wiring Diagram - Manual Guide Wiring Diagram •WEIL-MCLAIN EGH CONTROL SUPPLEMENT Pdf Download.

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