Weil-McLain GOLD CGa-6 User Manual

Part No. 550-101-009/0107
This manual must only be used by a qualified heating installer/service technician. Before installing, read all
instructions, including this manual, the burner manual and any related supplements. Perform steps in the order
given. Failure to comply could result in severe personal injury, death or substantial property damage.
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Weil-McLain GOLD CGa-6 Specifications

General

Brand	Weil-McLain
Model	GOLD CGa-6
Category	Boiler
Language	English

Summary

How it works

Control module

Describes the function and operation of the control module for pilot ignition and burner control.

Please read before proceeding

3d Piping – low temperature systems

Primary/secondary (preferred) Bypass piping method

Describes the preferred piping method for low-temperature systems to manage flow and temperature.

4 Gas piping

Connect gas supply piping to boiler

5 Field wiring

Thermostat

6a Start-up – preparation

Check for gas leaks

Freeze protection (when used)

6b Start-up – operate boiler (continued)

Start the boiler

6d Start-up – verify operation

Check burner flames

Instructs on how to visually inspect pilot and main burner flames for proper operation.

Check vent damper operation

Guides the user on verifying the correct operation of the vent damper during the heating cycle.

7 Check-out procedure – checklist

8a Operation – standing pilot boilers

Call for heat

8b Lighting instructions CGa-25 to CGa-8

FOR YOUR SAFETY READ BEFORE LIGHTING

Critical safety instructions that must be read before attempting to light the pilot.

LIGHTING INSTRUCTIONS

Step-by-step guide for safely lighting the pilot burner.

9a Operation – spark-ignited pilot boilers

Pilot ignition

Main burner operation

9a Operation – spark-ignited pilot system (continued)

9b Operating instructions CGa-25 to CGa-8

FOR YOUR SAFETY READ BEFORE OPERATING

Essential safety precautions before operating the boiler.

OPERATING INSTRUCTIONS

Step-by-step guide for operating the boiler.

10a Service and maintenance – schedule

10b Service & maintenance – annual start-up

10b Service & maintenance – annual start-up (cont.)

Expansion tank

Boiler relief valve

Review with owner

11a Troubleshooting – procedure

11a Troubleshooting – procedure (continued)

In event of vent damper failure:

Provides steps to take if the vent damper fails to operate correctly.

11b Troubleshooting – standing pilot boilers

CHART 1 – Standing pilot – Boiler will not fire

A diagnostic chart for troubleshooting a standing pilot boiler that fails to fire.

11c Troubleshooting – spark-pilot boilers

Control indicator lights – LOCKOUT modes

Explains the different lockout conditions indicated by control module lights.

11c Troubleshooting – spark-pilot boilers (continued)

CHART 2 — Spark-ignited pilot — Troubleshooting POWER light status

A diagnostic chart for troubleshooting issues related to the POWER light status.

CHART 3 — Spark-ignited pilot — TSTAT CIRC & POWER lights flashing

A diagnostic chart for issues indicated by flashing TSTAT CIRC and POWER lights.

CHART 4 — Spark-ignited pilot — DAMPER light flashing

A diagnostic chart for troubleshooting problems indicated by the DAMPER light flashing.

CHART 5 — Spark-ignited pilot — FLAME & POWER lights flashing

A diagnostic chart for troubleshooting issues indicated by flashing FLAME and POWER lights.

CHART 6 — Spark-ignited pilot — FLAME light flashing and POWER light on steady

A diagnostic chart for troubleshooting main flame establishment issues.

CHART 7 — Spark-ignited pilot — Insufficient heat or no heat (POWER light on steady)

A diagnostic chart for troubleshooting lack of heat or insufficient heat.