Slant/Fin CHS-399 - Manual (Page 8)

Slant Fin Corp. │ Installation and Operation Instructions CHS Series
8
3.0 BOILER LOCATION
In all cases, the CHS boiler must be installed indoors in a dry location where the ambient temperature must be
maintained above freezing and below 100

F [38

C]. All boiler components must be protected from dripping,
spraying water, or rain during operation and servicing. Consider the proximity of system piping, gas and
electrical supply, condensate disposal drain, and proximity to vent termination when determining the best boiler
location.
Water or flood damaged components must be replaced immediately with new factory-
approved components as failure to do so may result in fire, serious injury, or death.
Boiler Area Ventilation Air Openings
If boiler area clearances are less than the recommended clearances specified in Table 3-1, the boiler area must be
ventilated (Exception: if the boiler area/room has a volume of 150 ft
3
or greater, ventilation of the boiler room is
not required). Each ventilation air opening must meet the minimum requirements of 1 in
2
per 1000 Btu/hr, but
not less then 100 in 2 . The lower ventilation opening must be located within 6” of the floor while the upper
opening must be located 6” from the top of the space.
If the "Boiler Area" does not meet the recommended clearances listed in Table 3-1, and if
the boiler area has a volume less than 150 ft
3 , it is considered a Closet or Alcove. In US /
Canada, PVC vent pipe and fittings shall not be used within the closet or alcove; only
approved CPVC, Polypropylene or Stainless Steel vent pipe and fittings can be used. See Table 4-4 for a list of
approved materials. Under all circumstances, the minimum clearances listed in Table 3-1 must be provided.
Closet Installations
For closet installations it is necessary to provide two ventilation air openings as shown in Figure 3-1, each
providing a minimum area equal to 1 in
2 per 1000 Btu/hr, but not less then 100 in 2 and within 6” of the top and
bottom of the closet door. See Table 3-1 for minimum clearances.
Alcove Installations
Alcove installations have the same minimum clearances as closet installations, except the front must be
completely open to the room at a distance no greater then 18” [457 mm] from the front of the boiler and the
room is at least three (3) times the size of the alcove. Provided these conditions are met, the boiler requires no
extra ventilation air openings to the space. See Table 3-1for minimum clearances.
Residential Garage Installations
When installed in a residential garage, mount the boiler a minimum of 18” [457 mm] above the floor. Locate or
protect the boiler so it cannot be damaged by a moving vehicle. Check with your local authorities for other
possible regulations pertaining to the installation of a boiler in a garage.
Wall Mounting Installations
The CHS is provided with integrated wall mounting brackets. Refer to Figure 3-2 for instructions and
illustrations on wall mounting.
Table 3-1 Minimum Clearances for Installation and Service
Model No. Clearances
Dimensions - inches [mm]
Front Top Sides Back Bottom Flue Pipe
CHS 85-399
Minimum 24 [610]
1
12 [305] 4 [102] 0 9 [229] 1 [25]
Recommended 36 [914] 24 [610] 12 [305] 0 24 [610] 1 [25]
Notes:
1 6” if surface is removable allowing a minimum of 24” [610 mm] clearance (i.e. closet installation). See Ventilation Air
Opening dimensions in Figure 3-1.
Closet/alcove installations in US and Canada require approved CPVC, Polypropylene or
Stainless Steel vent and air-inlet pipe and fittings (see Table 4-4); PVC is not permitted.
Failure to follow these instructions may result in damage or serious injury.