General Venting Instructions - American Standard TGBWF090A93AVA Installation Manual

3. The following types of installations will require use
Figure 12
of OUT DOOR AIR for combustion, due to chemi-
cal exposures:
* Commercial buildings
* Buildings with indoor pools
* Boilers installed in commercial laundry rooms
* Boilers installed in hobby or craft rooms
* Boilers installed near chemical storage areas.
Exposure to the following substances in the com-
bustion air supply will also require OUTDOOR AIR
for combustion:
* Permanent wave solutions
* Chlorinated waxes and cleaners
* Chlorine based swimming pool chemicals
* Water softening chemicals
* Deicing salts or chemicals
* Carbon Tetrachloride
* Halogen type refrigerants
Figure 13
* Cleaning solvents (such as perchloroethylene)
* Printing inks, paint removers, varnish, paint,
* Hydrochloric acid
* Cements and glues
* Antistatic fabric softeners for clothes dryers
* Masonry acid washing materials
3.7 GENERAL VENTING
INSTRUCTIONS
CARBON MONOXIDE POISONING HAZARD
FAILURE TO FOLLOW THIS WARNING COULD
RESULT IN CARBON MONOXIDE POISONING OR
DEATH.
VENT PIPING
These boilers have been classifi ed as Natural Draft,
Category I boilers under the "latest edition" provi-
sions of ANSI Z21.13 and CAN/CGA 4.9 standards.
Category I boilers operate with a non-positive vent
static pressure and with a fl ue loss of not less than 17
percent.
The boiler shall be connected to a factory built
chimney or vent complying with a recognized
standard, or a masonry or concrete chimney
lined with a lining material acceptable to the
authority having jurisdiction.
etc.
▲
WARNING
!
18-CG01D1-4
19