Table Of Contents; Contents - Weil-McLain WTGO 4 Series Manual

WTGO
OIL-FIRED NATURAL DRAFT WATER BOILER - SERIES 4 -

Contents

Using this manual . . . . . . . . . . . . . . . . 2
Homeowner . . . . . . . . . . . . . . . . . . 2
Service technicians
When calling or writing about the boiler
Packaged, Semi-packaged and Knocked-down boilers 2
Hazard definitions . . . . . . . . . . . . . . . . 2
Contents . . . . . . . . . . . . . . . . . . . . 3
Please read before proceeding . . . . . . . . . 4
Homeowner . . . . . . . . . . . . . . . . . . 4
Service technicians
Tips for water systems -
Saltwater Damage
Electrical Damage
Frozen Water Damage Hazard
Routine maintenance schedule . . . . . . . . . 5
Beginning each heating season
Daily during heating season
Weekly during heating season
End of heating season
Boiler shutdown
Operation . . . . . . . . . . . . . . . . . . . . 6
WTGO (see Figure 1)
Troubleshooting . . . . . . . . . . . . . . . . . 7
Before installing boiler . . . . . . . . . . . . . 8
Installations must comply with
Before selecting boiler location
Provide clearances around boiler (see Figure 2)
Provide air for combustion and ventilation
Lay a foundation, if needed
Install boiler - Packaged boilers only . . . . . .10
Place boiler
Perform hydrostatic pressure test
Install boiler - Semi-packaged & Knocked-down boilers 12
Place boiler
Tankless heater, if used
Perform hydrostatic pressure test
Install jacket (Knocked-down boilers only)
Install boiler controls
Install burner - all boilers . . . . . . . . . . .15
Install burner (also refer to instructions
packed with burner)
Connect breeching . . . . . . . . . . . . . . .16
General chimney requirements
Part number 550-142-332/0421
HOMEOWNER and SERVICE TECHNICIAN - read and follow completely.
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Boiler Manual
Connect breeching
Connect water piping . . . . . . . . . . . . . .18
General piping information
Install piping:
DIAPHRAGM expansion tank (Figure 9)
CLOSED expansion tank (Figure 10)
To connect WTGO boilers to
indirect-fired water heaters
Piping MULTIPLE ZONES
Piping for systems requiring
temperatures below 140°F
Use with refrigeration systems
Connect tankless heater piping . . . . . . . . .23
Connect wiring . . . . . . . . . . . . . . . . .24
General wiring requirements
Thermostat wiring
Zone valve wiring
General wiring
Burner wiring
High temperature limit
3-Wire zone valve applications
Blocked vent shutoff switch
Connect wiring - vent damper . . . . . . . . . .28
Connect oil piping . . . . . . . . . . . . . . . .28
General oil piping requirements
Start-up . . . . . . . . . . . . . . . . . . . . .29
Fill the system
When using antifreeze
To place in operation
Burner adjustments
Check-out procedure . . . . . . . . . . . . . .30
Check off Steps as completed
Installation and service certificate
Annual service check list . . . . . . . . . . . .31
Controls requiring annual service
Detailed service procedures . . . . . . . . . . .32
Cleaning boiler flue ways
General description of control operation
Handling ceramic fiber and fiberglass materials 33
Close clearance installation . . . . . . . . . . .34
Close clearance installation
Replacement parts . . . . . . . . . . . . . . .36
Dimensions . . . . . . . . . . . . . . . . . . .41
Ratings . . . . . . . . . . . . . . . . . . . . .42
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