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Weil-McLain CGa Series User Manual
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i
7
550-142-301/0123
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CGa-25 to CGa-6, EG-30 to EG-50, PEG-30 to PEG-50
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Spark-ignited pilot
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Gas valve — White-Rodgers 36E
(continued on the next page)
Dr
aft - F
or Engineering R
e
view ONL
Y J
an. 2023 HC
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Table of Contents
Table of Contents
2
Section 1 - Safety
3
Safety Signals
3
Please Read before Proceeding
3
Safety Warnings and Information
3
Safe Boiler Operation
4
Boiler Water
4
Frozen Water Damage
4
Damage from Water Contact
4
Section 2 - Operation
5
Prevent Combustion Air Contamination
5
List of Air Contaminants to Avoid
5
Cga, EG-30 to EG-75, PEG-30 to PEG-55
6
Operating Instructions
6
Cga-25 to Cga-6, EG-30 to EG-50, PEG-30 to PEG-50
7
Cga-7, Cga-8, EG-55 to EG-75, PEG-55
8
Cga-25 to Cga-6, EG-30 to EG-50, PEG-30 to PEG-50
9
Cgi
10
Lgb
11
Troubleshooting
12
Common Issues and Solutions
12
Use the Troubleshooting Table to Resolve Typical Heating System and Boiler Issues
12
Section 3 - Maintenance
13
Maintenance Overview
13
Servicing and Maintaining the Boiler
13
Tankless Water Heater (EG and PEG Only)
14
Rollout Thermal Fuse Element (Cga, Cgi, EG, & PEG Only)
14
Spill Switch (Cga, EG, & PEG Only)
14
Boiler Illustrations
14
Cga Series 3
15
Cgi Series 4
16
Eg/Peg
17
Lgb
17
Boiler Maintenance Schedules
18
Maintenance Procedures - DAILY
18
Boiler Area
18
Pressure/Temperature Gauge or Pressure Gauge (Steam)
18
Air Openings
18
Maintenance Procedures - MONTHLY
19
Boiler Piping
19
Venting System
19
Boiler Relief Valve
19
Automatic Air Vents (if Used)
19
Pilot Burner Flame
20
Main Burner Flame
20
Check Condensate Drain System (if Used)
20
Maintenance Procedures - PERIODICALLY
21
Float Type Low Water Cutoff
21
Probe Type Low Water Cutoff
21
Integrated Type Low Water Cutoff
22
Clean Gauge Glass
22
Oil Inducer Motor (Cgi Boilers)
22
Maintenance Procedures - EVERY 6 MONTHS
23
Operate the Boiler Relief Valve
23
Maintenance Procedures - END of SEASON
23
Boiler Shutdown Procedure
23
Propane Gas Odorant
23
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Weil-McLain CGa Series Specifications
General
Brand
Weil-McLain
Model
CGa Series
Category
Boiler
Language
English
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