Williamson Series 2 - Prepare Boiler

6
Part Number 550-142-785/0812
GWI Series 2 Gas-Fired Water Boilers – Boiler Manual
Location Natural gas Propane gas
U. S.
Sea level –
2,000 ft
over
2,000 ft
Sea level –
2,000 ft
over
2,000 ft
2.00 mm (Note1) 1.30 mm (Note1)
Canada
Sea level –
2,000 ft
2,000 –
4,500
Sea level –
2,000 ft
2,000 –
4,500
2.00 mm 1.90 mm 1.30 mm 1.20 mm
Note1: ForU.S.elevationsabove2,000feet,contactyourlocalsupplierfor
details.
1 Prepare boiler location continued
Exhaust fans and air movers
The appliance space must never be under a negative pressure.
Always provide air openings sized not only to the dimensions
requiredforthering rateof allappliances,butalsoto handle
theairmovementrateoftheexhaustfansorairmoversusingair
fromthebuildingorspace.
Air openings continued
2 Prepare boiler
Place boiler/crate near position
1. Leaveboilerincrateandonpalletuntilinstallationsiteisready.
2. Moveentirecrateandpalletnexttoselectedlocation.
3. Removecrate.Leaveboileronpallet.
4. Removeboilerfrompalletasfollows:
a. Tiltleftsideofboilerupandplaceaboardunderleftlegs.
b. Tilt boiler the other way and place a board under right legs.
c. Slideboilerbackwardsoffpalletandintoposition.
 Donotdropboilerorbumpjacketonoororpallet.
Damage to boiler can result.
5. Checklevel.
a. Shimlegs,ifnecessary.
b. Do not alter legs.
Placement and setup
Motorized air dampers
Iftheairopeningsarettedwithmotorizeddampers,electrically
interlockthedamperto:
• Preventtheboilerfromringifthedamperisnotfullyopen.
• Shuttheboilerdownshouldthedampercloseduringboiler
operation.
Toaccomplishthisinterlock,wireanisolated 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.
The boiler contains ceramic fiber and fiberglass
materials.Usecarewhenhandlingthesematerials
per instructions on page 48ofthismanual.Failure
to comply could result in severe personal injury.
Inspect orifices and burners
1. Removefrontjacketdoor.Removebaseaccesspanel(See
Figure 25, item 4, page 42).
2. Checkforcorrectly-sizedmanifoldorices.SeeTable 3for
sizing.(Theoricesizeisstampedontheoricespudbarrel.)
 Correctly-sized manifold orices mustbe used.
Failure to do so will result in severe personal injury,
death or substantial property damage.
3. Levelandstraightenburners.
Burners must be properly seated in slots in burner
restwiththeiropeningsfacingup.Mainburnerori-
cesmustinjectdowncenterofburner.Failureto
properly seat burners will result in severe personal
injury, death or substantial property damage.
4. Reinstall access panel.
Do not operate boiler without access panel secured
in place. Failure to comply could cause momentary
amerolloutonignitionofmainame,resultingin
possible fire or personal injury hazard.
Table 3 Manifold orice sizing