Weil-McLain GOLD DV WATER BOILER, 550-141-850/0599 IIIh Water piping multi-zone radiant system

Page 34

GOLD GV Water boiler series 3 — manual

IIIh Water piping — multi-zone radiant system

Figure 14a Manual bypass; fixed temp

operation only

Zone 2

Multi-zone radiant heating system piping

Multi-zone systems require automatic regulation of the system supply temperature because of widely varying load conditions. Figure 14a (zone-valve zoning) and

12"

max

Zone 1

Cold water

fill

Figure 14b (circulator zoning) show suggested piping for these systems.

Select an automatic temperature control valve or motor- operated valve which can be adjusted for the desired supply water temperature.

Zone-valve zoning — The suggested piping uses a separate circulator for system circulation to provide the higher flow typical of radiant heating systems and to assure good temperature distribution in the system when the return water temperature is low.

Circulator zoning — The GV internal circulators must not be removed. Provide a separate circulator for each zone.

GV Boiler

85015b

Figure 14b Auto return temp regulation; outdoor reset or fixed temp

Zone 2

Outdoor reset control

Apply Figure 14a or 14b for any system intended for outdoor reset of the supply water temperature. Use a motor-operated three-way valve and an outdoor reset temperature control system.

Legend

12"

max

Zone 1

Cold water

fill

1

Boiler isolation valves

2

Automatic air vent (with diaphragm-type

 

expansion tank), or connect to tank fitting

 

(closed-type expansion tank).

3

Diaphragm- or bladder-type expansion tank, if

 

used (For closed-type expansion tank, pipe

 

from top of air separator to tank fitting as in

 

Figure 10.)

4

Zone valve

5

System or zone circulator

6

Flow/check valve

7

Hose bibb purge valve

8

Boiler pressure/temperature gauge

GV Boiler

85018b

9

System supply temperature gauge

10

Boiler return temperature gauge

13Supply temperature automatic mixing valve

34

Part number 550-141-850/0699

Image 34
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 & altitudeLarge space Ic Prepare boiler location clearancesClearance options Small spaceFlooring and foundation Residential garage installationPrecautions 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 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 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 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 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 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