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• Selection data

• Installation

• Piping

• Water treatment

This manual must only be used by a qualified heating installer/service technician.
Before installing, read all instructions, including this manual, the Ultra Boiler
Manual and all applicable Supplements. Consider all connections to the boilers
before selecting a location and layout. Failure to comply could result in severe
personal injury, death or substantial property damage.

Part No. 550-101-232/0703

Gas-fired

water boiler

Installation Manual

with

Multiple-boiler systems with

Weil-McLain Easy-Fit

®

piping

1
2
3
...
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Содержание Boiler

Страница 1: ...cluding this manual the Ultra Boiler Manual and all applicable Supplements Consider all connections to the boilers before selecting a location and layout Failure to comply could result in severe personal injury death or substantial property damage Part No 550 101 232 0703 Gas fired water boiler Installation Manual with Multiple boiler systems with Weil McLain Easy Fit piping ...

Страница 2: ...tion 7 Easy Fit Piping Easy Fit Piping installation 8 Piping schematic 9 Easy Fit Piping 3 dimensional drawing 10 Easy Fit Piping 4 boilers 3 water heaters 3 dimensional 11 Easy Fit Piping with isolation exchanger 3 dim drawing 12 Combustion air and vent piping installation Vent piping 13 Combustion air piping 13 Combustion air manifolds 13 Gas piping Connecting gas supply piping 14 Common gas pip...

Страница 3: ...allation on combustible flooring not carpet 3 Ultra boilers are tested for 30 P S I working pressure higher pressure not available 4 For systems requiring greater than 30 P S I relief valve setting install a heat exchanger to isolate the boilers from the main system See page 12 for suggested piping 5 Maximum operating temperature of each boiler is 190 F This manual provides general guidelines for ...

Страница 4: ...Part number 550 101 232 0703 4 GAS FIRED WATER BOILER Installation Manual Multiple boiler Systems Ratings and engineering data Figure 1 Ratings and engineering data see page 5 for notes D O E ...

Страница 5: ...ions see Figure 4 page 7 4 Operating weight is the total weight including water 5 Ultra 230 boilers can be vented with 3 inch vent instead of 4 inch with the limitations described in the Ultra Boiler Vent Supplement Using the smaller vent pipe reduces maximum allowable run All Ultra installations require a separate vent pipe and termination for each boiler Vent piping cannot be manifolded Install ...

Страница 6: ...ping and gas pipe can be routed through bottom of enclosure using wall mounting kit Dimensions Figure 2 Dimensional data 2 Boilercirculatorisshippedloose Mount boiler circulator in connecting piping as shown in this manual Boiler is shipped with 1 and 1 circulator flanges 3 Relief valve is shipped loose See Boiler Manual pages 14 and 15 for mounting details Relief valve mounts on street elbow conn...

Страница 7: ...alkline boiler locations on foundation or boiler room floor 5 Uncrate assemble and mount boilers according to Ultra Boiler Manual 6 Provide clearance for installa tion of venting air piping gas piping expansion tank primary circulator and other accessories Wall mounting 1 Ultra boilers may be wall mounted following the instruc tions in the Ultra Boiler Manual and the Wall Mounting Supple ment 2 Wh...

Страница 8: ...tem flowing left to right reverse the locations of the Manifolds accordingly 4 Connect from Easy Fit Manifold branches to boiler supply and re turn connections using 1 nominal copper tubing or steel pipe maxi mum run 15 5 Provide a flow check valve in the supply piping of each boiler as shown in piping diagrams in this manual Install an isolation valve on the supply and return of each boiler as sh...

Страница 9: ...d by applicable codes 12 Isolation valve 13 Cold water supply 14 Supply water temperature control when used 15 Low water cutoff when used place above primary header 16 Water flow switch when used 17 Boiler circulator each boiler 18 System supply 19 System return 20 Boiler relief valve and discharge piping installed per Ultra Boiler Manual This manual provides general guidelines for piping and inst...

Страница 10: ...ach boiler 2 Isolation valves when used 3 Caps 4 Easy Fit Manifold supply sized per Fig 6 or Fig 7 page 8 5 Easy Fit Manifold return sized per Fig 6 or Fig 7 page 8 6 Primary circulator 7 Expansion tank diaphragm type 8 System air eliminator 9 System automatic air vent 13 Cold water supply 17 Boiler circulator each boiler 18 System supply 19 System return 20 Boiler relief valve and discharge pipin...

Страница 11: ... check valves to prevent induced or gravity flow in heating system or DHW piping 28 Check valve to prevent heat migration in heating system 29 See water heater manual for DHW piping The DHW piping must also be manifolded together since the boiler side piping is manifolded If DHW heaters supply separate DHW circuits provide an individual circulator for each water heater and control each circulator ...

Страница 12: ...zed per Fig 6 or Fig 7 page 8 6a Heating system circulator exchanger tubeside 6b Heat exchanger shellside circulator 7 Expansion tanks diaphragm type 8 System air eliminator 9 System automatic air vent 13 Cold water supply connections 17 Boiler circulator each boiler 18 Heating system supply 19 Heating system return 20 Boiler relief valve and discharge piping installed per Ultra Boiler Manual Note...

Страница 13: ...r Manual and Ultra Boiler Venting Supplements 2 Combustion air piping can be supplied from a common combustion air manifold installed and terminated as shown in Figure 12 below Combustion air manifolds 1 When combustion air supplied from a common air manifold pipe as in Figure 12 size the common air duct and louver free area from the minimum free area given in Figure 1 pages 4 and 5 2 All joints m...

Страница 14: ... w c Do not check for gas leaks with an open flame use bubble test Failure to use bubble test or check for gas leaks can cause severe personal injury death or substantial property damage 6 Use pipe dope compatible with propane gases Apply sparingly only to male threads of pipe joints so that pipe dope does not block gas flow Failure to apply pipe dope as detailed above can result in severe persona...

Страница 15: ... from Table 2 5 Refer to page 14 of this manual and to the Ultra Boiler Manual for testing gas piping 1 Construct gas header for multiple boilers using Figure 14 and the sizing tables below Refer to the National Fuel Gas Code for other conditions 2 Provide manual shutoff gas valve and ground joint union as shown in Figures 13 and 14 for each boiler When gas line en ters from top of the boilerl the...

Страница 16: ...alysis and recommendations Initial fill water may contain enough minerals to produce damaging deposits Additional untreated makeup water will increase scale buildup Contamination may also come from scale and rust buildup inside the piping and heat distribution units of an older boiler system replaced with small multiple boiler units The result can lead to loss of efficiency and component failure 1...

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