Lennox International Inc. TUA75S 用户手册

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Page 3 
 
 
 
Shipping 
 
The heater is completely assembled. Two mounting 
brackets are included with the 45, 60, and 75 size units. 
Check the unit for shipping damage. The receiving party 
should contact the last carrier immediately if any shipping 
damage is found. 
 
Requirements – CSA in the USA 
 
Installation of gas unit heaters must conform with local 
building codes or, in the absence of local codes, with the 
current National Fuel Gas Code ANSI Z223.1. 
Installation in aircraft hangers must be in accordance with 
the current Standard for Aircraft Hangers ANSI/NFPA No. 
409. 
Installation in parking structures must be in accordance 
with the current Standard for Parking Structures 
ANSI/NFPA No. 88A. 
Installation in repair garages must be in accordance with 
the current Standard for Repair Garages ANSI/NFPA No. 
88B. 
These units are approved for residential applications. 
Residential applications are defined as installations for 
heating non-living spaces that are attached to, adjacent 
to or part of a structure that contains space for family 
living quarters. For installation in a residential garage 
these units 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. Refer to the National Fuel Gas 
Code, ANSI Z223.1, current edition. 
Authorities having jurisdiction should be consulted before 
installation.  
The National Fuel Gas Code 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 installation 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 ground for unit must be in  
accordance with the regulations of the current National 
Electric Code ANSI/NFPA No. 70.  
The National Electric Code is available from: 
 
National Fire Protection Association 
 
1 Batterymarch Park 
 
PO Box 9101 
 
Quincy, MA 02269-9101 
 
Requirements – CSA in Canada 
 
The 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 code CSA-
B149.1 “Installation Code for Natural Gas Burning 
Appliances and Equipment." All electrical wiring and 
grounding for the unit must also comply with the 
Canadian Electrical Code CSA C22.1, current edition. 
These unit heaters are CSA International certified for the 
clearances to combustible material listed on the rating 
plate and table 1. Adequate clearance shall be provided 
around the appliance and around air inlet terminals. 
Provision shall be made for service accessibility to the 
heater. Note that fire protection clearances may be 
exceeded to provide additional space for service and 
accessibility. 
GARAGE INSTALLATIONS: 
1- In a storage area, clearance from heaters to 
combustible materials must be such that the material 
shall not attain a temperature above 160°F by 
continuous operation of the unit. 
2-  Eight foot minimum clearance from the floor to the 
bottom of the heater must be maintained. Refer to the 
CSA-B149 Codes. 
AIRCRAFT HANGER: 
1-  In an area where aircraft are housed or serviced, 10' 
minimum clearance from highest surface of aircraft to 
bottom of the heater must be maintained. 
2-  In other areas, 8' minimum clearance from the floor to 
bottom of heater must be maintained. 
3-  Heaters should be located so as to be protected from 
damage from aircraft or other appliances needed for 
servicing of aircraft. Refer to requirements of the 
enforcing authorities. 
RESIDENTIAL INSTALLATIONS: 
These units are approved for residential applications. 
Residential applications are defined as installations for 
heating non-living spaces that are attached to, adjacent 
to or part of a structure that contains space for family 
living quarters. For installation in a residential garage, 
these units 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. Refer to CSA-B149.1, current 
edition. 
Be sure to check with local codes and ordinances for 
additional requirements.