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Control installation, Universal control systems — control supplement, Continued – Weil-McLain Boiler User Manual

Page 11

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11

Part Number 550-110-646/0607

Universal control systems — Control supplement

Control installation

continued

For your safety, turn off electrical power

supply and turn off external gas supply

valve before attempting to work on the

boiler. Failure to comply can cause severe

personal injury, death or substantial prop-

erty damage.

EG steam boilers with float-type low water cut-off

1. Mount and wire controls per wiring diagram, page 10, and Figure .

a. Attach junction box inside left jacket panel with #8- x ½” machine screws

provided.

b. Install transformer with plug-in relay receptacle and relay.
c. Operating and limit circuit wiring must be 18 gauge or heavier.

. Bring supply wiring to boiler. Must be 1 gauge or heavier.
. Proceed to page 0.

Figure 4

EG steam boilers with float-type low water cut-off