Williamson-Thermoflo GWA 3 Series Скачать руководство пользователя страница 18

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Part Number 550-142-320/0720

GWA

Series 3

Gas-Fired Water Boilers –

Boiler Manual

4 Water piping — multiple zones

continued

Figure 14

Boiler-bypass piping

Zoning with circulators (Alternative to

primary/secondary piping

Figures

12 and 13)

Figure 15

Boiler-bypass piping
Zoning with zone valves (Alternative to primary/
secondary piping

Figures

12 and 13)

Water piping — low temperature systems

continued

Boiler

isolation (balancing) valves

Flow/check

valve

System

or zone circulator

System

temperature gauges

Zone

valve

Drain

valve

System

temperature valves (see instructions to the

left for adjusting valves)

Blend

temperature gauge

Relief

valve

Automatic

air vent (with diaphragm-type expansion tank), or

connect to tank fitting (closed-type expansion tank).

DO NOT

use an automatic air vent when using closed-type expansion
tank. It would allow air to leave the system, causing waterlog-
ging of the expansion tank.

Fill

valve

Diaphragm-type

or bladder-type expansion tank, if used (For

closed-type expansion tank, pipe from top of air separator to
tank fitting as in Figure 6, page 11

)

Air

separator and automatic vent, if used (Note that the fill valve

must always be connected to the expansion tank, regardless
of location of expansion tank, circulator or air separator.)

Содержание GWA 3 Series

Страница 1: ...n when determin ing boiler location Any claims for damage or shortage in shipment must be filed immediately against the transpor tation company by the consignee USER Please read the following Failure...

Страница 2: ...ks immediately to prevent pos sible accumulation of glycol Never use automotive antifreeze or ethylene glycol in the system Using these glycols can lead to hazardous leakage of glycol in the boiler sy...

Страница 3: ...3 latest edition Before locating the boiler o Check for nearby connection to System water piping Venting connections Gas supply piping Electrical power o Check area around boiler Remove any combustibl...

Страница 4: ...perate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers d Place in operation the appliance being inspected Follow the operating instructions Adjust thermostat so appliance...

Страница 5: ...utility Type B double wall metal vent pipe or single wall vent pipe may be used as a liner 4 Cold masonry chimneys also known as outside chimneys typically have one or more walls exposed to outside ai...

Страница 6: ...olated contact proving the damper open in series with the thermostat input to the boiler The boiler will not start if this contact is open and will shut down should it open during operation 1 Prepare...

Страница 7: ...er system Severe damage to boiler will occur resulting in substantial property damage Drain and remove fittings 1 Disconnect fill water hose from water source 2 Drain boiler at drain valve or out hose...

Страница 8: ...lot systems See vent manufacturer s instructions to install plug shipped with damper in damper hole For spark ignited pilot boilers only install plug with no hole in vent damper hole Minimum clearance...

Страница 9: ...de 3 Install damper harness between damper actuator and hole in jacket left side panel See Figure 3 page 8 Use strain relief connectors and locknuts to secure both ends of damper harness Keep wiring h...

Страница 10: ...alve in cold water supply if required by local codes See Table 4 and Figure 5 diaphragm type or bladder type expansion tank or Figure 6 closed type expansion tank on page 11 for near boiler piping for...

Страница 11: ...d in air handling units where they can be exposed to refrigerated air use flow control valves or other automatic means to prevent gravity circulation during cooling cycle Circulation of cold water thr...

Страница 12: ...controls flow through the boiler 4 The purpose of this piping is to cause a high enough temperature rise in the boiler that the average temperature will be warm enough to prevent condensation of flue...

Страница 13: ...ow rate without affecting primary circuit flow rate If Figures 12 or 13 cannot be used use the boiler bypass piping shown in Figure 14 or Figure 15 on page 18 You can also use the piping shown in Figu...

Страница 14: ...type expansion tank pipe from top of air separator to tank fitting as in Figure 6 page 11 13 Air separator and automatic vent if used Note that the fill valve must always be connected to the expansio...

Страница 15: ...change in the heating circuit rate and temperature distribution Figures 12 or 13 on page 16 show suggested bypass ar rangements using primary secondary bypass piping pre ferred for low temperature sy...

Страница 16: ...nk or connect to tank fitting closed type expansion tank DO NOT use an automatic air vent when using closed type expansion tank It would allow air to leave the system causing waterlogging of the expan...

Страница 17: ...rates are adjusted according to the instructions following Figures 14 or 15 are alternative piping suggestions for converted gravity large water content or steam systems or radiant heating system for...

Страница 18: ...ystem temperature valves see instructions to the left for adjusting valves 8 Blend temperature gauge 9 Relief valve 10 Automatic air vent with diaphragm type expansion tank or connect to tank fitting...

Страница 19: ...antial property damage SYSTEM bypass piping method This piping method Figure 16 is called a system bypass be cause part of the circulator flow bypasses the system through valve 7a This bypassed hot wa...

Страница 20: ...le between cap and tee b Install ground joint union for servicing when required c Install manual shutoff valve in gas supply piping outside boiler jacket when required by local codes or utility requir...

Страница 21: ...in thermostat to match power requirements of equipment connected to it If connected directly to boiler set for 0 4 Figure 18 Field wiring connections service switch DHW if used and thermostat or end...

Страница 22: ...section failure Verify water chemistry Consult local water treatment companies for unusually hard water areas above 7 grains hardness or low pH water condi tions below 7 0 Boiler water pH of 7 0 to 8...

Страница 23: ...ulates available hot water before turning on the boiler to attempt to satisfy a call for heat While attempting to satisfy the heat demand the control module also monitors the boiler temperature change...

Страница 24: ...ilot flame 1 Overfired Large flame lifting or blowing past pilot flame sensor 2 Under fired Small flame Inner cone not engulfing pilot flame sensor 3 Lack of primary air Yellow flame tip 4 Incorrectly...

Страница 25: ...as outlined by manufacturer Burners should be operating and should go off when controls are tested When controls are restored burners should reignite o Button on spill switch pushed in o Test ignitio...

Страница 26: ...t control module will attempt to ignite pilot 2 more times with a 5 minute wait period after the second try and a 60 minute wait period after the third try If the ignition control does not sense pilot...

Страница 27: ...w in the standby mode 7 Thermostat anticipator setting Set thermostat heat anticipator as instructed in Figure 22 page 28 10 Sequence of operation spark ignited pilot boilers Steps following step 7 cy...

Страница 28: ...28 Part Number 550 142 320 0720 GWA Series 3 Gas Fired Water Boilers Boiler Manual Figure 22 Schematic wiring diagram Spark ignited pilot system 10 Sequence of operation spark ignited pilot boilers...

Страница 29: ...29 Part Number 550 142 320 0720 GWA Series 3 Gas Fired Water Boilers Boiler Manual Figure 23 Schematic wiring diagram Spark ignited pilot system 10 Sequence of operation spark ignited pilot boilers...

Страница 30: ...p 10 Turn gas control knob counterclockwise to ON Press down on White Rodgers 36C valve knob to turn 11 Turn on all electric power to the appliance 12 When equipped with Effikal vent damper place serv...

Страница 31: ...31 Part Number 550 142 320 0720 GWA Series 3 Gas Fired Water Boilers Boiler Manual 11 Operating instructions Gas valve Robertshaw 7200...

Страница 32: ...al for instructions A nnual start up o Inspect Reported problems Boiler area Air openings Flue gas vent system Pilot and main burner flames Water piping Boiler heating surfaces Burners base and inlet...

Страница 33: ...ice and maintenance continued Water piping 1 Check the boiler interior piping and all system piping for signs of leaks 2 Repair any leaks before proceeding Do not use petroleum based cleaning or seali...

Страница 34: ...log and no longer control pressurization The boiler relief valve will weep frequently 12 Service and maintenance continued o Check test Gas piping 1 Sniff near floor and around boiler area for any ind...

Страница 35: ...ff Gas to Appliance instructions on boiler and Operating Instructions Do not drain boiler unless it will be exposed to freezing temperatures If using antifreeze in system do not drain 2 Follow shutdow...

Страница 36: ...e Can be adjusted by regulator on gas valve c If gas pressure is incorrect or gas is not available to boiler contact gas supplier to correct before proceeding further 3 Check pilot operation Follow Op...

Страница 37: ...ash code 6 Internal fault gas valve circuit Flash code pattern POWER LED flashes 2 3 etc times rapidly followed by 2 seconds off then repeats ALL LED S FLASHING Failure to establish pilot flame after...

Страница 38: ...38 Part Number 550 142 320 0720 GWA Series 3 Gas Fired Water Boilers Boiler Manual Figure 27 Control module connections 13 Troubleshooting spark ignited pilot boilers...

Страница 39: ...or fuses are good Remove 120 VAC IN plug Figure 27 Item 3 page 38 on control module Using voltmeter check across black and white wire pins of 120 VAC IN plug If in Low Water condition Power is disrup...

Страница 40: ...on check and correct the external wiring This is a common problem when using 3 wire zone valves Once the external thermostat circuit wiring is checked and corrected if necessary reconnect the external...

Страница 41: ...nd appropriate zone valves open The TSTAT CIRC and LIMIT lights should come on Does vent damper operate No Yes Wait 45 seconds Is Damper light flashing No Yes Remove damper wiring plug at damper and f...

Страница 42: ...lve closed Turn off power to boiler at service switch or breaker Wait at least 45 seconds Turn on power to boiler Restart boiler following Operating instructions in this manual Section 11 or on boiler...

Страница 43: ...as valve Turn on power to boiler and allow to cycle As soon as pilot is burning the MICROAMMETER should read at least 1 0 microamp Is flame signal at least 1 0 microamp No Yes Check the voltage across...

Страница 44: ...et spill switch or replace rollout switch If rollout thermal fuse element or spill switch has opened determine cause and correct condition Failure to do so will cause severe personal injury death or s...

Страница 45: ...018WT 460 003 017WT 2 Collector hood GWA 038 GWA 067 GWA 100 GWA 133 GWA 166 GWA 200 GWA 233 381 354 625WT 381 354 626WT 381 354 627WT 381 354 628WT 381 354 629WT 381 354 630WT 381 354 631WT 3 Draftho...

Страница 46: ...ase assembly 8 Burner rest in Base assembly 9 Base insulation kit included insulation for all base parts above plus gasket material needed between block assembly and base GWA 038 to GWA 133 GWA 166 to...

Страница 47: ...067 GWA 100 GWA 133 GWA 166 GWA 200 GWA 233 431 223 572WT 431 223 574WT 431 223 576WT 431 223 578WT 431 223 580WT 431 223 582WT 431 223 584WT 4 Jacket panel door GWA 038 070 GWA 100 GWA 133 GWA 166 G...

Страница 48: ...924WT 2 Combination pressure temperature gauge with 2 short shank 510 218 099WT 3 Drain valve NPT 1 Shank Fittings shown are included with boiler 511 210 423WT 4 Circulator Fittings shown are shipped...

Страница 49: ...GWA 200 GWA 233 511 044 356WT 511 044 366WT 2 Pilot kit w orifice aluminum pilot gas tubing 511 330 273WT Kit Conv Natural Gas to Liquefied Petroleum Propane GWA 038 210 510 811 940WT Kit Conv Natura...

Страница 50: ...T Return tappings inches NPT Gas connection manifold size Note 3 inches NPT A Vent location inches D Vent diameter inches W Jacket width inches H Damper height inches GWA 038 1 1 5 4 10 45 GWA 067 1 1...

Страница 51: ...he model number designates natural gas An L designates propane gas The letter after the designates the pilot ignition system I for spark ignited pilot For example a suffix L I means a propane spark ig...

Страница 52: ...om the boiler and place it in a plastic bag for disposal o Wash potentially contaminated clothes separately from other clothing Rinse clothes washer thoroughly NIOSH stated First Aid o Eye Irrigate im...

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