Trane GHND-SVX01A-EN - Manual (Page 22)

22 GHND-SVX01A-EN • High Efficiency Propeller Fan Gas Unit Heater
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WARNING!
Carbon Monoxide Poisoning!
Each unit must have an individual vent pipe and vent terminal per furnace section!
Each unit MUST NOT be connected to other vent systems or to a chimney. Failure to
follow this instruction could result in death or serious injuries.
All unit heaters must be vented! All venting installations shall be in accordance
with the latest edition of Part 7, venting of Equipment of the National Fuel Gas Code,
ANSI Z223.1, or applicable provisions of local building codes for natural or power
vented units.
Power vented units are designed to be used with single wall vent pipe utilizing
horizontal or vertical venting arrangements (see Figures 6, 7 and 8). These
arrangements may terminate external to the building using either a single wall or
double wall (Type B) vent. See Figures 6 thru 10 for special installation requirements
regarding these venting conditions.
Note: IMPORTANT! Your venting system must not be blocked by any snow, snow
drifts, or any foreign matter. Inspect your venting system to ensure adequate
ventilation exists at all times! Failure to heed these warnings could result in
Carbon Monoxide Poisoning (symptoms include grogginess, lethargy,
inappropriate tiredness, or flu-like symptoms).
Note: Do not use a type B (double wall) vent internally within the building on power
vented units!
If double wall venting is used, components which are UL Listed and approved for
Category III positive pressure venting systems MUST be used.
A Briedart Type L, Field Starkap or an equivalent vent cap must be supplied by the
customer for each power vented unit. The vent pipe diameter MUST be as specified in
the table 1 (“D” Dia. Flue Opening). A reducer must be field installed for 100 through
175 MBH Unit Sizes (Canadian units include this required reducer). All 300 through 400
MBH Unit sizes are factory equipped with the required flue increaser. Refer to Figures 9
through 10D for additional requirements.
Venting for Power Vented Unit Heaters
Vent Systems - Termination Clearance Requirements
Structure
Minimum Clearances for Termination
Locations
Door, window or any gravity air inlet
4 feet below
4 feet horizontally
1 foot above
Forced air inlet within 10 ft. 3 feet above
Adjoining building or parapet 6 feet
Adjacent public walkways 7 feet above grade