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Weil-McLain
550-110-710/0107
manual
Control module connections
Models:
550-110-710/0107
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Troubleshooting
Controls Repair Parts Lists
Error codes
9b Operation wiring diagrams
Field wiring
Dimension
Section assembly
Check-out procedure checklist
Valve adjustment
How to
Page 50
Image 50
GOLD CGi
Gas-Fired
Water Boiler — Boiler Manual
11b
Troubleshooting — components
(continued)
Figure 38
Control module connections
50
Part Number
550-110-710/0107
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Page 50
Image 50
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Contents
Gold CGi
How it works
Gold CGi Gas-Fired Induced-Draft Water Boiler
Contents
Please read before proceeding
Before locating the boiler, check the following
1a Prepare boiler location codes & checklist
Installations must follow these codes
1b Prepare boiler location clearances
Chimney or vent require- ments
When removing boiler from an existing common vent system
1c Prepare boiler location vent system
1d Prepare boiler location air contamination
Products to avoid
Air opening options
1e Prepare boiler location air openings
Air openings must be provided
Two openings Air supply from inside the building
Single air opening option
Exhaust fans and air movers
Motorized air dampers
Exception for large spaces
Place boiler/crate near position
2a Prepare boiler placement & setup
Orifice replacement procedure
Inspect orifices and burners
Drain and remove fittings
2b Prepare boiler pressure test
Hydrostatic pressure test
Prepare boiler for test
CGi venting methods Chimney draft or Direct exhaust
3a Venting general information
Venting chimney draft venting
Chimney draft venting
3c Venting Direct exhaust components
Obtain vent system components
3d Venting direct exhaust vent starter
Vent StaR-34 Vent starter
3e Venting direct exhaust termination
Vent termination minimum clearances
Sidewall venting See Figures 14
3f Venting direct exhaust installation
Vertical venting See . Follow vent
Using any termination other than one of those shown
4a Water piping general information
Closed-type expansion tank
4b Water piping single-zone system
Diaphragm-type or bladder- type expansion tank Figure
4c Water piping multiple zones
Piping multiple zones
Zoning with circulators
Valve adjustment
4d Piping low temperature systems
Temperature gauges
Primary/secondary preferred bypass piping method
Primary/secondary piping
Valve adjustment
BOILER-bypass piping method
Boiler-bypass piping Zoning with
SYSTEM-bypass piping method
4e Water piping refrigeration system
Prevent chilled water from entering boiler
Natural Gas
Connecting gas supply piping to boiler
Gas piping
Propane Gas
Wiring connections
Field wiring
Electrical installation must comply with
Thermostat
Check for gas leaks
Freeze protection when used
7a Start-up preparation
Determine if water treatment is needed
Inspect system water piping
Do not use petroleum-based cleaning or sealing compounds
Fill the system with water
Inspect base insulation
Check system and boiler
7b Start-up operate boiler
Start the boiler
Check for
7c Start-up if boiler doesn’t start
Check burner flames
Pilot burner flame Figure
Check-out procedure checklist
Thermostats
9a Operation sequence
During main burner operation
9b Operation wiring diagrams
Schematic wiring diagram
Ladder wiring diagram
9c Operating instructions CGi-25 to CGi-6
9c Operating instructions CGi-25 to CGi-6
9c Operating instructions CGi-25 to CGi-8
10a Service and maintenance schedule
Verify Proper Operation After Servicing
10b Service and maintenance annual start-up
Condensate drain system
10b Service & maintenance annual start-up
Burners and base
Inducer motor
Air vents and air elimination
Gas piping
Cold fill and operating pressures
Limit controls and cutoffs
Review the User’s Information Manual with the owner
Review with owner
Boiler relief valve
Before troubleshooting
11a Troubleshooting procedure
11b Troubleshooting components
Air pressure switch
Control indicator lights Lockout modes
Control indicator lights
Troubleshooting the control module
Control module
Control module connections
Remove 120 VAC in plug , Item 3, page 50 on control module
11c Troubleshooting control module lights
Chart Light flashing
VAC in plug
Chart 2 Tstat Circ & Power lights flashing
Chart 3 Press Switch & Power lights flashing
Chart 4 Flame & Power lights flashing
Usually indicates flame sensed when it shouldnt be there
Does blower motor operate?
Item 8 ,
Verify Sequence
Operation, Figure
Controls Repair Parts Lists
12a Replacement parts
Section assembly Base Jacket Trim Controls
12b Replacement parts section assembly
Section assembly
12c Replacement parts base
Base assembly
Description Weil-McLain Part number
12d Replacement parts jacket
Jacket assembly
Boiler Model Weil-McLain part number
Boiler
Model Weil-McLain part number
12e Replacement parts trim
Fittings shown are included with boiler
12f Replacement parts controls
Propane gas components
13a Dimensions
Dimensional drawing
13b Ratings
Handling ceramic fiber and fiberglass materials
Removal of Combustion Chamber Lining or Base Panels
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