Weil-McLain Boiler Technical Information Page 32
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- Table of contents
- TROUBLESHOOTING
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Part number 550-141-850/069932
GOLD GV Water boiler series 3 — manualGOLD GV Water boiler series 3 — manual
GOLD GV Water boiler series 3 — manualGOLD GV Water boiler series 3 — manual
GOLD GV Water boiler series 3 — manual
Water piping — radiator systemIIIf
Figure 12a Radiator system — zone-valve
zoning
Zone 2
Zone 1
85013b
Cold
water
fill
GV Boiler
12"
max
Figure 12b Radiator system — circulator
zoning
Zone 2
Zone 1
85017
Cold
water
fill
GV Boiler
12"
max
Legend
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
Radiator system piping
Apply Figure 12a (zone-valve zoning) or 12b (circulator
zoning) to systems using standing cast iron radiators.
This applies to gravity water systems and converted steam
systems using columnar, tubular or recessed cast iron
radiators.
The suggested piping for zone-valve zoning radiator
systems differs from baseboard systems because of the
high water content of cast iron radiators. The GV internal
circulators automatically regulate supply and internal
bypass flow based on the temperature of the water
returning to the boiler. At the start of many heating cycles
in a radiator system, the water in the radiators is cool. So
the boiler would slow down system flow rate while
sending out relatively hot water. This could cause heat
distribution problems. Install a separate system circulator
as shown in Figure 12a when zoning with zone valves.
The separate circulator assures a relatively constant
temperature drop through the system.
The boiler internal circulators must be left in the boiler.
They cannot be removed for use a a zoning circulator.
Provide a circulator for each zone when circulator zoning,
and pipe the system as in Figure 12b.
- Boiler manual 1
- How it works . . 2
- 3Part number 550-141-850/0699 3
- Please read before proceeding 4
- Contents 6
- Overview of this section 8
- Installations must 9
- High altitude 9
- Clearance options: 10
- Flooring and foundation 11
- Vent system 12
- Vent termination and 12
- When removing a boiler 12
- Air contamination 13
- GV with other appliances 14
- Single air opening option 14
- GV without other appliances 14
- GV combustion air options 14
- Sizing air openings 14
- Special considerations 15
- Prepare boiler — overview 16
- (cont.) 17
- Check for correct 18
- White side (propane plate) 19
- (Install with this side 19
- Gas/air manifold 19
- Jacket left 21
- Interior panel 21
- (2) 10-32 x 3/8" 21
- Phillips/hex screws 21
- Position boiler 22
- Perform hydrostatic pressure 24
- To fill/drain 25
- Water piping — overviewIIIa 26
- Water piping — relief valve 27
- Air separator 28
- Expansion tank 28
- Backflow preventer 28
- To cold fill 29
- 1 1" 30
- 2 – 3 1½" 30
- 4 – 5 2" 30
- 6 – 8 2½" 30
- 9 – 12 3" 30
- Baseboard system piping 31
- Radiator system piping 32
- GV Boiler 33
- 12" 33
- Multi-zone radiant heating 34
- Outdoor reset control 34
- Piping snow melt systems or 35
- Water chiller systems 36
- Venting and combustion airIV 37
- Gas pipingV 38
- Manifold 39
- Field wiringVI 40
- Field wiring 41
- Factory wiring 41
- Start-up — overviewVIIa 42
- Start-up — preparationVIIb 42
- (cont.)VIIb 43
- Verify gas/air orifice plate 43
- Check for gas leaks 43
- Fill the system with water 43
- Inspect system water piping 43
- Perform final checks before 44
- Start the boiler 44
- Check system and boiler 44
- Observation port 45
- Connect and adjust manometer 46
- Check Gas Control Set Point 46
- At Least 47
- 6 Inches 47
- IIc to check size 48
- VIId, step 5 48
- POWER and FLAME lights 49
- Field wiring, manual 49
- Thermostat(s) 49
- GCM lights, see 50
- X, Troubleshooting 50
- Operation — sequenceIXb 51
- Ladder diagram legend 52
- Selector arm 54
- Position 55
- Gas control knob 55
- Service and maintenance 56
- Service technician 57
- Owner maintenance 57
- Annual start-up only 58
- Annual start-up — 58
- (cont.)Xc 60
- Condensate drain line 63
- (cont.)Xd 64
- Overview of this 66
- Check switch pressure setting 68
- Return to normal operation 68
- Blower Housing 69
- Gas Valve 69
- Control Module 70
- 120 VAC H 71
- 120 VAC N 71
- — Troubleshooting 74
- Figure 34, Item 4 75
- (continued)XIg 76
- PRES SWITCH & POWER 77
- Figure 34, Item 81
- Description Model Weil-McLain 84
- Figure 35 Section assembly 85
- Figure 36 Jacket assembly 87
- Vent starter 89
- Description Weil-McLain 90
- Figure 38 Trim assembly 91
- Figure 39 Interior panel 93
- Dimensions and ratingsXIII 94
- Table 12 Boiler ratings 95
- Weil-McLain 96
- 500 Blaine Street 96
- Michigan City, IN 46360-2388 96
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