Weil-McLain 550-141-830/1202 Start-up, SGO with float-typelow water cutoff, Gauge Glass, Plug

Start-up

SGO with float-type low water cutoff:

1.If burner does not fire, check for:

●Switch on boiler or additional shut-off switches turned off.

●Fuses or breaker switch tripped.

●Thermostat set below room temperature.

●Fuel valves turned off.

●Not enough oil in tank to supply burner.

●No water in gauge glass.

2.Correct problems found in step #1. If burner does not fire, press reset button on burner primary control only once. Repeated presses will deposit oil in combustion chamber.

Burner must never be fired when oil is in combustion chamber. Immedi- ately call qualified service technician.

3.If burner still does not fire, call qualified service technician.

Gauge Glass

Steam Relief Valve (on back of boiler)

n

n

Tankless Heater

Control

Located in tankless heater plate (sizes 3-5)

or in tapping in back section (sizes 6-9)

Float-Type

Low Water

Cutoff

Burner

Disconnect

Plug

n

	n
n	n
	n

n

n	n
	n

Pressure Control

Pressure Gauge

Service Switch

on Boiler

Reset Button on Burner Primary Control

Burner Primary

Control

Part No. 550-141-830/1202

SGO Boiler with Float-Type Low Water Cutoff
(See Page 6 for Probe-Type Low Water Cutoff)	5
Figure 1