Does blower motor operate? | Weil-McLain 550-110-710/0107 manual

GOLD CGi Gas-Fired Water Boiler — Boiler Manual

11c Troubleshooting — control module lights (cont.)

CHART 5 — PRESS SWITCH light flashing and POWER light on steady

— Usually indicates pressure switch opened during run cycle —

— May also be caused by wind gusts in excess of 31 mph for non-direct vent sidewall-vented boilers —

Electrical shock hazard — Wherever you see ▲TURN OFF POWER▲, follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.

•Reset boiler control by turning off power at service switch or turning down thermostat for at least 45 seconds.

•Thermostat should call for heat and appropriate zone valves open.

Does blower motor operate?

No

Yes

•Remove INDUCER plug (Figure 38, Item 6, page 50) from plug receptacle of control module.

•Place voltmeter leads across the 120 VAC N and 120 VAC H pins of the INDUCER receptacle (left column center and right column bottom pins).

Does the voltmeter indicate 120 VAC?

No		Yes

• Replace inducer assembly.

• Retest.

•Remove one of the wires connected to the pressure switch.

•Check continuity across the switch terminals.

Does the ohmmeter indicate the switch is closed?

No			Yes

• Wait 5 minutes.

Is PRESS SWITCH light flashing?

No			Yes

•Boiler should be in normal operating sequence.

•Observe operation until thermostat is satisfied and inducer has completed its post-purge cycle.

•Inspect and check wire harness from control module to pressure switch.

•Reseat connector in control module receptacle.

•If harness is intact and properly seated, but problem persists, replace control module.

•Retest.

Is vent blocked?

No			Yes

•	Check air pressure switch per manual Section		• Clear vent and recycle boiler.
	11b.		• Clear vent and recycle boiler.
	11b.		• Recheck boiler operation.
•	Replace if necessary. Retest.		• Recheck boiler operation.
•	Replace if necessary. Retest.

Part Number 550-110-710/0107	55

Image 55

Weil-McLain 550-110-710/0107 manual Does blower motor operate?

Contents

Gold CGi How it works Gold CGi Gas-Fired Induced-Draft Water Boiler Contents Please read before proceeding Installations must follow these codes 1a Prepare boiler location codes & checklistBefore locating the boiler, check the following 1b Prepare boiler location clearances 1c Prepare boiler location vent system When removing boiler from an existing common vent systemChimney or vent require- ments Products to avoid 1d Prepare boiler location air contamination Two openings Air supply from inside the building 1e Prepare boiler location air openingsAir openings must be provided Air opening options Exception for large spaces Exhaust fans and air moversMotorized air dampers Single air opening option Inspect orifices and burners 2a Prepare boiler placement & setupOrifice replacement procedure Place boiler/crate near position Prepare boiler for test 2b Prepare boiler pressure testHydrostatic pressure test Drain and remove fittings Chimney draft venting 3a Venting general informationVenting chimney draft venting CGi venting methods Chimney draft or Direct exhaust Obtain vent system components 3c Venting Direct exhaust components Vent StaR-34 Vent starter 3d Venting direct exhaust vent starter Vent termination minimum clearances 3e Venting direct exhaust termination Vertical venting See . Follow vent 3f Venting direct exhaust installationSidewall venting See Figures 14 Using any termination other than one of those shown 4a Water piping general information Diaphragm-type or bladder- type expansion tank Figure 4b Water piping single-zone systemClosed-type expansion tank Piping multiple zones 4c Water piping multiple zones Zoning with circulators Primary/secondary preferred bypass piping method 4d Piping low temperature systemsTemperature gauges Valve adjustment Primary/secondary piping BOILER-bypass piping method Valve adjustment Boiler-bypass piping Zoning with SYSTEM-bypass piping method Prevent chilled water from entering boiler 4e Water piping refrigeration system Propane Gas Connecting gas supply piping to boilerGas piping Natural Gas Thermostat Field wiringElectrical installation must comply with Wiring connections Determine if water treatment is needed Freeze protection when used7a Start-up preparation Check for gas leaks Inspect base insulation Do not use petroleum-based cleaning or sealing compoundsFill the system with water Inspect system water piping Start the boiler 7b Start-up operate boilerCheck system and boiler Pilot burner flame Figure 7c Start-up if boiler doesn’t startCheck burner flames Check for Thermostats Check-out procedure checklist During main burner operation 9a Operation sequence Schematic wiring diagram 9b Operation wiring diagrams 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 Verify Proper Operation After Servicing 10a Service and maintenance schedule 10b Service and maintenance annual start-up Inducer motor 10b Service & maintenance annual start-upBurners and base Condensate drain system Limit controls and cutoffs Gas pipingCold fill and operating pressures Air vents and air elimination Boiler relief valve Review with ownerReview the User’s Information Manual with the owner Air pressure switch 11a Troubleshooting procedure11b Troubleshooting components Before troubleshooting Control module Control indicator lightsTroubleshooting the control module Control indicator lights Lockout modes Control module connections VAC in plug 11c Troubleshooting control module lightsChart Light flashing Remove 120 VAC in plug , Item 3, page 50 on control module Chart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Usually indicates flame sensed when it shouldnt be there Chart 4 Flame & Power lights flashing Does blower motor operate? Item 8 , Operation, Figure Verify Sequence Section assembly Base Jacket Trim Controls 12a Replacement partsControls Repair Parts Lists Section assembly 12b Replacement parts section assembly Base assembly 12c Replacement parts base Description Weil-McLain Part number Jacket assembly 12d Replacement parts jacket Model Weil-McLain part number BoilerBoiler Model Weil-McLain part number Fittings shown are included with boiler 12e Replacement parts trim Propane gas components 12f Replacement parts controls Dimensional drawing 13a Dimensions 13b Ratings Removal of Combustion Chamber Lining or Base Panels Handling ceramic fiber and fiberglass materials