Loading ...
Loading ...
Loading ...
3DUW1XPEHU
!IROPENINGS
Provide adequate combustion and ventilation air
to assure proper combustion and reduce the risk
of severe personal injury, death or substantial prop-
erty damage caused by flue gas spillage and carbon
monoxide emissions.
Combustion air and ventilation openings must comply with
the National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edi-
tion, or applicable local building codes. Canadian installations
must comply with Natural Gas and Propane Installation Code,
B149.1 or B149.2 Installation Codes.
Air opening sizes in the following are given in free area (after
correction for louver obstruction).
Option 1 — Provide (2) openings:
Option 2 — Provide (1) opening:
A single combustion air opening can be used, provided:
s 4HE
opening must commence within 12 inches of the ceiling.
s 4HEBOILERMUSTHAVECLEARANCESOFATLEASTINCHFROMBOTH
sides and back, and 6 inches from the front.
s 4HEOPENINGMUSTCONNECTDIRECTLYTOTHEOUTDOORSORTOA
space that communicates directly to the outdoors.
s 4HEAIRCANBEPROVIDEDTHROUGHADIRECTOPENINGORTHROUGH
a horizontal or vertical duct.
s 4HEFREEAREAOFTHEOPENINGMUSTBEATLEASTEQUALTOTHESUM
of all vent connectors in the space.
s 4HEFREEAREAOFTHEOPENINGMUSTBEATLEASTSQUAREINCH
per 3000 Btu/hr input rating of all equipment located in the
space.
Tight construction — Definition:
Tight construction means (per ANSI Z223.1/NFPA 54):
s 7ALLSANDCEILINGSEXPOSEDTOTHEOUTSIDEATMOSPHEREHAVEA
continuous water vapor retarder with a rating of 1 perm or
less with openings gasketed AND
s Weather-stripping has been added on openable windows and
doors AND
s #AULKINGORSEALANTSAREAPPLIEDTOAREASSUCHASJOINTSAROUND
windows and door frames, between sole plates and floors, be-
tween wall-ceiling joints, between wall panels, at penetrations
for plumbing, electrical, and gas lines, and in other openings.
Tight construction requirements
If building is of tight construction and air is taken from inside
the building, provide two openings in building outside wall, one
within 12 inches of ceiling, the other within 12 inches of the floor.
Each opening must have a minimum free area of 1 square inch
per 1,000 Btuh of all appliances in the building.
Exception
NO combustion air openings are needed when the boiler (and
other appliances) are installed in a space with a volume NO LESS
than 50 cubic feet per 1,000 Btuh of all installed appliances. Sum
the total input of all appliances in MBH (1,000’s of Btuh) and
multiply this number times 50. Building must not be of Tight
construction (see above).
Example: For total input of 100 MBH (100,000 Btuh), minimum
VOLUMEISXCUBICFEET!TACEILINGHEIGHTOFFEET
SPACEMUSTHAVEATLEAST¿SQUAREFEETFEETX
feet, for instance).
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 firing 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.
Motorized air dampers
If the air openings are fitted with motorized dampers, electrically
interlock the damper to:
s 0REVENTTHEBOILERFROMlRINGIFTHEDAMPERISNOTFULLYOPEN
s 3HUTTHEBOILERDOWNSHOULDTHEDAMPERCLOSEDURINGBOILER
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 damper is closed, and will shut
down should damper close during operation.
0LACEMENTANDSETUP
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. Unbolt boiler from pallet.
5. Remove boiler from pallet.
Prepare tKe loFatLon
EG
&
PEG SERIES 5
s
EGH SERIES 5 GAS-FIRED BOILERS — BOILER MANUAL
Loading ...
Loading ...
Loading ...