Page 3
CSA Requirements in USA
Installation of gas unit heaters must conform with local
building codes or, in the absence of local codes, with the
current edition of ANSI−Z223.1, National Fuel Gas Code.
Installation in aircraft hangers must be in accordance with
the current edition of ANSI/NFPA No. 409, Standard for
Aircraft Hangers.
Installation in parking structures must be in accordance
with the current edition of ANSI/NFPA No. 88A, Standard
for Parking Structures.
Installation in repair garages must be in accordance with
the current edition of ANSI/NFPA No. 88B, Standard for
Repair Garages.
Authorities having jurisdiction should be consulted before
installation. Air for combustion and ventilation must
conform to the methods outlined in the current edition of
ANSI Z223.1, Section 5.3, Air for Combustion and
Ventilation, or applicable provisions of local building
codes.
The National Fuel Gas Code (ANSI−Z223.1) is available
from:
American National Standard Institute Inc.
11 West 42nd Street
New York, NY 10036
These units are CSA international design−certified. These
unit heaters are certified for clearances to combustible
material as listed in table 1 and on unit rating plate.
Accessibility and service clearances must be observed in
addition to fire protection clearances.
All electrical wiring and grounding for unit must be in
accordance with the regulations of the current edition of
ANSI/NFPA No. 70, National Electric Code.
The National Electric Code is available from:
National Fire Protection Association
1 Batterymarch Park
PO Box 9101
Quincy, MA 02269−9101
CSA Requirements in Canada
These instructions are intended only as a general guide
and do not supersede local codes in any way. Authorities
having jurisdiction should be consulted before
installation. The installation must conform with local
building codes or, in the absence of local codes, with the
current edition of CSA−B149 installation compliance
codes. All electrical wiring and grounding for the unit must
also comply with the current edition of CSA C22.1,
Canadian Electrical Code.
These unit heaters are CSA−certified for clearances to
combustible material listed on the rating plate and table 3.
Adequate clearance must be provided around the
appliance and around air openings into the combustion
chamber. Provision must be made for service
accessibility.
NOTE: Fire protection clearances may be exceeded to
provide additional space for service and accessibility.
TABLE 3
UNIT CLEARANCES TO COMBUSTIBLE MATERIALS
Top
Sides Bottom Rear Flue
in mm in mm in mm in mm in mm
6 152 6 152 0 0 18 457 6 152
GARAGE / WAREHOUSE INSTALLATIONS
1 − In a storage area, clearance from the heater to
combustible materials must be such that the
combustible material must not attain a temperature
above 160°F (71°C) during continuous operation of
the unit.
WARNING
Combustible materials that are affected by ex-
posure to temperatures less than 160°F (plas-
tics, plastic wrap, styrofoam, cardboard, etc.)
must be stored well away from this heater. Dis-
charge air temperatures for these units can ap-
proach 200°F.
2 − Maintain an 8−foot (2.5 m) minimum clearance from
the floor to the bottom of the heater. Refer to the
current edition of CSA−B149 installation compliance
codes.
AIRCRAFT HANGER
1 − In an area where aircraft are housed or serviced, a
10−foot (3 m) minimum clearance from the highest
surface of the aircraft to bottom of the heater must
be maintained.
2 − In other areas, an 8−foot (2.5 m) minimum clearance
from the floor to bottom of heater must be
maintained.
3 − Heaters should be located so that they are
protected from damage from aircraft or other
appliances needed for servicing of aircraft. Refer to
requirements of the enforcing authorities.
In a confined area, the heater must be installed in
accordance with the current edition of CSA−B149
installation compliance codes. Be sure to check with local
codes and ordinances for additional requirements.
To Next Page
Loading...
Need help?
General
