Sterling TD - Manual (Page 3)

3
VENTING FOR POWER VENTED DUCT FURNACES (CATEGORY III)
GENERAL GUIDELINES (CONTINUED)
ADDITIONAL REQUIREMENTS FOR CANADIAN INSTALLATIONS
REFER TO SPECIFICATION TABLE AND INSTALLATION MANUAL FOR PROPER USAGE
The following instructions apply to Canadian installations in addition to installation and operating instructions.
Table 1
Vent Systems Termination Clearance Requirements
Structure/Object
Minimum Clearances for
Termination Locations
USA CANADA
Door, window or gravity vent inlet; combustion
air inlet for other appliances
9 in. for 10,000
to 50,000 BTU/Hr input;
12 in. for input
exceeding 50,000 BTU/Hr 9 in. (230mm) for 10,000
to 50,000 BTU/Hr input;
12 in. (305mm) for input
exceeding 50,000 BTU/Hr
Forced air inlet within 10 ft. 3 ft. above 6 ft. (1.8m)
Adjoining building or parapet 10 ft. 10 ft. (3.04m)
Adjacent public walkways 7 ft. above grade 7 ft. (2.1m) above grade
Electric, gas meters & regulators 4 ft. horizontal
3 ft. (0.9m) horizontally from
meter/regulator assembly.
6 ft. (1.8m), any direction,
from a gas service regulator
vent outlet
Above grade level* 1 ft. 1 ft. (0.3m)
* Minimum above maximum snow depth, or per local code, whichever is greater.
1. Installation must conform with local building codes,
or in the absence of local codes, with current
CSA-B149.1, Installation Codes for Natural
Gas Burning Appliances and Equipment, or
CSA-B149.2, Installation Codes for Propane
Gas Burning Appliances and Equipment.
2. Any reference to U.S. standards or codes in these
instructions are to be ignored, and the applicable
Canadian standards or codes applied.