Weil-McLain GOLD DV WATER BOILER manual VIIa Start-up overview, VIIb Start-up preparation

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GOLD GV Water boiler series 3 — manual

VIIa Start-up — overview

❏Determine if water treatment will be needed to compensate for water hardness or pH.

❏Obtain propylene/glycol antifreeze if freeze protection is required. Glycol must be propylene glycol only, and special requirements may apply when using glycol.

❏Check for gas leaks (and verify propane odorant level).

❏Fill system with water and purge air. Verify water piping is leak-free.

❏Study boiler operating instructions, Section IX. Then start boiler.

❏Verify water piping, gas piping and vent system are leak-free. Verify igniter operation.

❏For installations at altitudes over 5,500 feet above sea level, measure gas valve outlet pressure and adjust if required (see also Section IId).

VIIb Start-up — preparation

Do not use petroleum-based cleaning or sealing compounds

in boiler system. Severe damage to boiler will occur, resulting in substantial property damage.

Eliminate all system leaks. Continual fresh makeup water will reduce boiler life. Minerals can build up in sections, reducing heat transfer, overheating cast iron, and causing section failure.

Verify water chemistry

Consult local water treatment companies for unusually hard water areas (above 7 grains hardness) or low pH water conditions (below 7.0).

Freeze protection (when used)

Use antifreeze made especially for hydronic systems. Inhibited propylene glycol is recommended.

Do not use ethylene glycol, automotive or undiluted

antifreeze. Severe personal injury or death can result.

1.Determine antifreeze quantity according to system water content. Boiler water content is listed in Table 12 on page 95. Remember to include expansion tank water content.

2.Follow antifreeze manufacturer's instructions.

3.A 50% solution of propylene glycol/water provides maximum protection to about -30 °F.

4.Local codes may require back flow preventer or actual disconnect from city water supply.

5.When using antifreeze in a system with automatic fill, install a water meter to monitor water makeup. Glycol will leak first at any leak spot. Added water will dilute the antifreeze, reducing the freeze protection level.

42	Part number 550-141-850/0699

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Contents Gold GV How it works Gold GV Water boiler Series Hazard definitions Installer User Please read before proceedingWhen servicing boiler Boiler operationBoiler water Contents Contents Ia Prepare boiler location overview Overview of this sectionInstallations must follow these codes Ib Prepare boiler location codes & altitudeLarge space Ic Prepare boiler location clearancesClearance options Small spaceFlooring and foundation Residential garage installationPrecautions FlooringId Prepare boiler location vent system Removing from existing ventGV 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 Natural gas Plate installationIIc Prepare boiler orifice plate 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 Prepare boiler for test Fig IIf Prepare boiler pressure testPerform hydrostatic pressure test 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 valveAir separator IIIc Water piping boiler connectionsSupply & return connections 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 Outdoor reset control IIIh Water piping multi-zone radiant systemMulti-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 Connecting gas supply piping to boiler Gas pipingPropane Gas Feet Wiring connections VI Field wiringElectrical installation must comply with ThermostatsField wiring Factory wiring VIIb Start-up preparation Freeze protection when usedVIIa Start-up overview Verify water chemistryCheck for gas leaks VIIb Start-up preparationVerify gas/air orifice plate Fill the system with waterPerform final checks before starting boiler VIIc Start-up read SectionVIId Start-up to operate boiler Start the boilerVIId Start-up operate boiler VIIe Start-up if boiler doesn’t startConnect and adjust manometer VIIf Start-up altitude over 5,500 feet onlyCheck 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/testExpansion tank GaugesIgniter Annual start-up owner review Boiler relief valveReview with owner Condensate drain line Check valve assembly To remove the blower assembly Igniter XIa Troubleshooting overview XIb Troubleshooting procedures Before troubleshootingCheck the following XIc Troubleshooting air pressure switch Checking the air pressure switchIgniter XId Troubleshooting servicing tipsBlower Housing 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