NOTICE
Boilers operated with direct vent (sealed combustion) are exempt from needing provisions for combustion air from the room, provided air intake piping is installed per Code and the instructions in the manual.
6.For boiler located within unconfined space in building of unusually tight construction or within confined space, provide outdoor air through two permanent openings which communicate directly or by duct with the outdoors or spaces (crawl or attic) freely communicating with the outdoors. Locate one opening within twelve (12) inches of top of space. Locate remaining opening within twelve (12) inches of bottom of space. Minimum dimension of air opening is three
(3)inches. Size each opening per following:
a.Direct communication with outdoors. Minimum free area of one (1) square inch per 4,000 Btu per hour input of all equipment in space.
b.Vertical ducts. Minimum free area of one (1) square inch per 4,000 Btu per hour input of all equipment in space. Duct
c.Horizontal ducts. Minimum free area of one (1) square inch per 2,000 Btu per hour input of all equipment in space. Duct
Alternate method for boiler located within confined space. Use indoor air if two permanent openings communicate directly with additional space(s) of sufficient volume such that combined volume of all spaces meet criteria for unconfined space. Size each opening for minimum free area of one (1) square inch per 1,000 Btu per hour input of all equipment in spaces, but not less than 100 square inches.
7.Combustion Air/Ventilation Duct Louvers and Grilles. Equip outside openings with louvers to prevent entrance of rain and snow, and screens to prevent entrance of insects and rodents. Louvers and grilles must be fixed in open position or interlocked with equipment to open automatically before burner operation. Screens must not be smaller than ¼ inch mesh.
Consider the blocking effect of louvers, grilles and screens when calculating the opening size to provide the required free area. If free area of louver or grille is not known, assume wood louvers have
CAUTION
If using indoor air for combustion (see Venting Section - Indoor Air), avoid operating this boiler in an environment where saw dust, loose insulation fibers, dry wall dust, etc. are present. If boiler is operated under these conditions, the burner interior and ports must be cleaned and inspected daily to insure proper operation.
II. Unpack Boiler
CAUTION
Do not drop boiler. Do not bump boiler jacket against floor.
A.Move boiler to approximate installed position.
B.Remove all crate fasteners.
C.Lift and remove outside container. Save two of the wooden slats from the container sleeve for use in Steps E and F.
D.Remove all boiler
WARNING
Installation of this boiler should be undertaken only by trained and skilled personnel from a qualified service agency.
E.Tilt the boiler to its front side or back side and slide a wooden slat under the three raised feet.
F.Tilt the boiler in the opposite direction and slide another wooden slat under the three raised feet.
G.Slide the boiler left or right off the skid using the two wooden slats as runners.
H.Move boiler to its permanent location.
