Weil-McLain GOLD DV WATER BOILER manual IXb Operation wiring diagrams, Ladder diagram legend

Page 52

GOLD GV Water boiler series 3 — manual

IXb Operation — wiring diagrams

Figure 23 Ladder wiring diagram

Electrical shock hazard — can cause severe injury or death. Disconnect power before installing or servicing.

All contacts are shown without power applied.

Ladder diagram legend

120 VAC hot field wiring

120 VAC neutral field wiring

24 VAC field wiring

120 VAC hot factory wiring

120 VAC neutral factory wiring Low voltage factory wiring

Ground connectors

120 VAC

Service switch (not provided)

Control module

120 VAC

section

Gnd

Igniter

Blower motor

System circulator

Bypass circulator

120VAC

24 VAC

Notes
1.	All wiring must be installed in accordance with:		Thermostat (not provided)
			Thermostat (not provided)
	a.	U.S.A. — N.E.C. and any other national, state, or local
		code requirements.
	b. Canada — C.S.A. C22.1 C.E.C. Part 1 and any other		Block temp	Water temp
		national, provincial, or local code requirements.	limit switch	limit switch
2.	All wiring must be:		Air pressure
			Air pressure
	a.	U.S.A. — N.E.C. Class 1.		switch
	b.	Canada — C.S.A. C22.1 C.E.C. Part 1.
3.	If any of the original wire as supplied with the appliance must
	be replaced, use type 90 °C or its equivalent.
4.	Thermostat anticipator setting (single zone):		Flame
	0.1 AMP + Gas valve current		sensor
5.	For multiple zoning, use either zone valves or circulators. Refer			Water temp sensor
	to the component manufacturer's instructions and this manual
	for application and wiring suggestions.
6.	Refer to control component instructions packed with the
	boiler for application information.		85030

Power

Tstat–Circ

Limit

Press switch

Flame

Control module

low voltage

section

Gas valve

52	Part number 550-141-850/0699

Image 52

Contents Gold GV How it works Gold GV Water boiler Series Hazard definitions Installer User Please read before proceedingBoiler operation When servicing boilerBoiler water Contents Contents Ia Prepare boiler location overview Overview of this sectionInstallations must follow these codes Ib Prepare boiler location codes & altitudeIc Prepare boiler location clearances Clearance optionsLarge space Small spaceResidential garage installation PrecautionsFlooring and foundation FlooringRemoving from existing vent Id Prepare boiler location vent systemGV special vent system Ie Prepare boiler location contamination Air contaminationIf Prepare boiler location air openings Special considerations GV in small space less than aloneIIa Prepare boiler overview IIb Prepare boiler vent starter tee & drainScrew hole Base rail Insert Cpvc elbow Plate installation IIc Prepare boiler orifice plateNatural gas PropaneBottom side of boiler front section When required IId Prepare boiler high altitude kitAltitudes above 5,500 feet only White Hose RedIIe Prepare boiler place in position Rotate IIf Prepare boiler pressure test Perform hydrostatic pressure testPrepare boiler for test Fig Fill and pressure testPiping connections for hydrostatic test IIIa Water piping overview For heating system with See pages 27 30Install relief valve IIIb Water piping relief valveIIIc Water piping boiler connections Supply & return connectionsAir separator Expansion tankPiping closed IIId Water piping all systems Zoning with circulatorsIIIe Water piping baseboard system Baseboard system pipingIIIf Water piping radiator system Radiator system pipingIIIg Water piping single-zone radiant or heat pump system IIIh Water piping multi-zone radiant system Outdoor reset controlMulti-zone radiant heating system piping IIIi Water piping snow melt system Manual bypass valves for fixed temp operation onlyIIIj Water piping water chiller systems Water chiller systemsIV Venting and combustion air Gas piping Connecting gas supply piping to boilerPropane Gas Feet VI Field wiring Electrical installation must comply withWiring connections ThermostatsField wiring Factory wiring Freeze protection when used VIIa Start-up overviewVIIb Start-up preparation Verify water chemistryVIIb Start-up preparation Verify gas/air orifice plateCheck for gas leaks Fill the system with waterVIIc Start-up read Section VIId Start-up to operate boilerPerform final checks before starting boiler Start the boilerVIId Start-up operate boiler VIIe Start-up if boiler doesn’t startVIIf Start-up altitude over 5,500 feet only Connect and adjust manometerCheck Gas Control Set Point At Least Inches VIIIa Check-out procedure overview Check-out procedure checklistVIIIb Check-out procedure checklist Shows the ladder wiring diagram for the GV series 3 boiler IXa Operation overviewIXb Operation sequence StepsIXb Operation wiring diagrams Ladder diagram legendGCM For Your Safety Read Before Operating IXc Operation lighting instructionsWhite-Rodgers gas valve model 36E Xa Service and maintenance overview Xb Service and maintenance schedule Service technicianXc Service & maintenance annual start-up Annual start-up only by qualified service technicianStart-up Xc Service & maint. annual start-upcont Annual start-up check/testGauges Expansion tankIgniter Boiler relief valve Annual start-up owner reviewReview with owner Condensate drain line Check valve assembly To remove the blower assembly Igniter XIa Troubleshooting overview Before troubleshooting XIb Troubleshooting proceduresCheck the following XIc Troubleshooting air pressure switch Checking the air pressure switchXId Troubleshooting servicing tips Blower HousingIgniter Gas ValveXIe Troubleshooting control module Control ModulePower XIf Troubleshooting common problems Symptom Common Causes Possible CorrectionsSymptom Common Causes Possible Corrections XIg Troubleshooting GCM lights Chart 1 Troubleshooting Power light statusChart 2 Tstat Circ & Power lights flashing Chart 3 Limit & Power lights flashing Chart 4 Pres Switch & Power lights flashing Chart 5 Flame & Power lights flashing Chart 6 Tstat Circ light flashing and Power light on steady Chart 7 Limit light flashing and Power light on steady Is thermostat circuit closed continuity across wires? XIIa Replacement parts overview XIIb Replacement parts accessory bag Water trim bag assembly #1XIIc Replacement parts section assembly Description Model Weil-McLain Number Part number85041 XIId Replacement parts jacket assembly 422-200-22885042 XIIe Replacement parts Blower assembly 382-200-340Vent starter tee not included XIIf Replacement parts trim assembly Description Weil-McLain Number Part number85048 XIIg Replacement parts interior panel Interior panel Xiii Dimensions and ratings NumberDOE Gold GV Water boiler Series