Weil-McLain GOLD DV WATER BOILER, 550-141-850/0599 manual If Prepare boiler location air openings

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GOLD GV Water boiler series 3 — manual

If Prepare boiler location — air openings

GV combustion air options

Using inside air — non-direct vent

The GV boiler can use inside air if no contaminants are present in the boiler space.

Using outside air — direct vent

Combustion air can be ducted directly from outside to the GV boiler air intake fitting. The installation is defined as direct vent (also referred to as sealed combustion).

Sizing air openings

Air openings to the GV boiler space are always required, regardless whether combustion air is taken from inside or outside. These air openings provide for ventilation (as well as combustion air) to prevent overheating of the boiler controls and boiler space. Air is also needed for other appliances located in the same space.

Use Figure 3, cases a through d, depending on how the air is supplied and whether the space contains only the GV or other appliances as well. The air opening sizing of Figure 3 is based on ANSI Z223.1, National Fuel Gas Code, intended for natural draft appliances. The GV boiler is not natural draft, so its requirements differ.

Air openings must be sized to handle all appliances and air movers (exhaust fans, etc.) using the air supply.

Louver allowance

The free area of openings means the area after reduction for any installed louvers or grilles. Be sure to consider this reduction when sizing the air openings.

Single air opening option

A single air opening within 12 inches of the ceiling may be used where the GV boiler is installed in a large space (clearances per Figure 1) with other appliances.

The other appliances must all be installed with at least 1 inch clearance from the sides and back, and 6 inches from the front. The GV boiler must have minimum clearances as shown in Figure 1.

The single air opening may be connected from outside to the appliance space by any of the methods of Figure 3.

The free area of the opening must also be at least equal to the combined area of all appliance vent connectors OR sized per the following, whichever result is larger:

GV direct vent — large shared space — single air opening

Size the single air opening for 1 square inch of free opening for each 3,000 Btuh of all appliances other than the GV. No additional air opening is needed for the GV.

GV inside air — large shared space — single air opening

Size the air opening for 1 square inch of free opening for each 3,000 Btuh of all appliances, including the GV.

GV without other appliances

If the GV boiler is installed in a space by itself, with no other appliance or air mover using air from the space, and with clearances around the boiler no less than those shown in Figure 1 for large space installations:

GV with other appliances

If the GV boiler is installed in a large space (clearances per Figure 1) providing air for a water heater or other gas appliance, size the air openings as follows:

GV direct vent — large shared space

Provide two openings per Figure 3, based only on the size of the other appliances and air movers. No additional air opening area is required for the GV boiler.

GV inside air — large shared space

If the GV combustion air comes from the inside space, size two air openings for the total of all appliances and air movers, including the GV boiler. Use the formula from the appropriate case in Figure 3.

GV direct vent — large space — alone

Air is needed only for ventilation. Size the air openings for any of the cases of Figure 3 for a free area of at least:

1 square inch per 8,000 Btuh of GV input

for each of the two openings. (If a single opening within 12 inches of the ceiling is used, size the opening for 1 square inch of free area for each 3,000 Btuh of GV input.)

GV inside air — large space — alone

Size the air openings for any of the cases of Figure 3 for a free area of at least:

1 square inch per 4,000 Btuh of GV input

for each of the two openings. (If a single opening within 12 inches of the ceiling is used, size the opening for 1 square inch of free area for each 3,000 Btuh of GV input.)

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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 proceedingBoiler water When servicing boilerBoiler operation 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 FlooringGV special vent system Id Prepare boiler location vent systemRemoving from existing vent 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 Multi-zone radiant heating system piping Outdoor reset controlIIIh Water piping multi-zone radiant system 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 Propane Gas Connecting gas supply piping to boilerGas piping 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 startCheck Gas Control Set Point Connect and adjust manometerVIIf Start-up altitude over 5,500 feet only 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/testIgniter Expansion tankGauges Review with owner Annual start-up owner reviewBoiler relief valve Condensate drain line Check valve assembly To remove the blower assembly Igniter XIa Troubleshooting overview Check the following XIb Troubleshooting proceduresBefore troubleshooting 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