Shipping contents includes heater, installation instruc-
tions,warrantycertificate,twomountingbrackets(shipped
loose in UH(RS,CM)-30/105 units), and a flue transition
(included in UH(RS,CM)-175/400 units only). The heater
is shipped completely assembled. Check the unitforship-
ping damage. The receiving party should contact thelast
carrier immediately if any shipping damage is found.
Units require a changeover kit when the unit is to beused
with Natural gas. The kit is ordered separately. See
Engineering Handbook.
Installation of gas unit heaters must conform with local
building codes or, in the absence oflocal codes, with the
current editionofANSIZ223.1, National Fuel Gas Code.
Installation inaircraft hangersmustbe inaccordance with
thecurrent 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.
These units are approved for residential garage or non-
confined living space applications. For installation in a
residential garage or non-confined living space, unit must
be installed so that burners and ignition source are
located no less than 18” (457mm) above floor. Heater
must be located or protected to avoid physical damage
by vehicles. Referto the current edition of ANSI Z223.1,
National Fuel Gas Code.
Authorities having jurisdiction should be consulted before
installation. Airforcombustion and ventilation must con-
form tothemethods outlinedinthecurrent editionofANSI
Z223.1,Section5.3,AirforCombustionandVentilation,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
NewYork, NY 10036
These unit heaters are CSAInternational design-certified.
These unit heaters are certified for installation tocombus-
tible material as listed in Table1 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 ac-
cordance 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
These instructions are intended only as a general guide
and do not supersede local codesin any way. Authorities
having jurisdictionshouldbeconsultedbeforeinstallation.
The installation must conform with localbuilding codes or,
in the absence oflocal codes, with the current edition of
CSA-B149installationcompliancecodes.Allelectricalwir-
ing 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 the installation
clearances listed on the rating plate and in table 1.
Adequate clearance must be provided around the appli-
ance and around air openings into the combustion cham-
ber. Provision shall be made for service accessibility.
NOTE - Fire protection clearances may be exceeded to
provide additional space for service and accessibility.
GARAGE/ WAREHOUSEINSTALLATIONS
1 - In a storage area, clearance from heaters to
combustible materials must be such that the
combustible material must not attain a temperature
above 160°F (71°C) by continuous operationofthe
unit.
Combustible materials thatare affected by exposure to
temperatures LESS than 160°F (plastics, plastic wrap,
styrofoam, cardboard, etc.) must be stored well away
from this heater. Discharge air temperatures for these
units can approach 200°F.
2 - Maintain an 8-foot (2m) minimumclearance from the
floor to the bottom of the heater. Refer to the current
edition of CSA-B149 for installation compliance
codes. AIRCRAFT HANGER
1 - In an area where aircraft are housed or serviced, a
10-foot (3m) minimum clearance from the highest
surface ofthe aircraft to bottom of the heater must
be maintained.
2 - In other areas, an 8-foot (2m) minimum clearance
from the floor to bottom ofheater must be maintained.
3 - Heatersshould belocated sothat theyare protected
fromdamagefromaircraftorotherappliancesneeded
for servicingof aircraft. Referto requirements of the
enforcing authorities.
RESIDENTIAL
These units are approved for residential garage or non-
confined living space applications. For installation in a
residential garage or non-confined living space, unit must
be installed so that burners and ignition source are
located no less than 18” (457mm) above floor. Heater
mustbe locatedor protectedtoavoidphysical damageby
vehicles. Referto the current edition of CSA-B149 for in-
stallation compliance codes.In a confined area, the heat-
er must be installed inaccordance with the current edition
of CSA-B149 installation compliance codes. Be sure to
check withlocal codes and ordinances for additional re-
quirements.
