Hydro-Smart HS120CON-LP, Installation Manual And Owner'S Manual

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VENTING INSTRUCTIONS
For the 140 Indoor (T-H3M-DV) model
-General-
• Improper ven ting of this appliance can result in excessive levels of carbon
monoxide which can result in severe personal injury or death.
• Improper installa tion can cause nausea or asphyxia tion, severe injury or death
from carbon monoxide and flue gases poisoning. Improper installa tion will
void product warranty.
DANGER
When installing the vent syst em, all applicable na tional and local codes must be
followed. If you install thimbles, fi re stops or other prot ecti ve devices and they
penetrate any combus tible or noncombus tible cons truction, be sure to follow all
applicable na tional and local codes.
CAUTION
The micro-boiler must be vented in accordance with the section “Ven ting of Equipment" of the latest
edition of the Na tional Fuel Gas Code: ANSI Z223.1/NFPA 54 in the United States and/or Section 7 of the
CAN/CSA B149.1 Natural Gas and Propane Installa tion Code in Canada, as well as applicable local building
codes.
The use of ven ting m aterials approved for Category III/IV appliances is recommended whenever possible.
However , the micro-boiler may also be vented with plas tic pipe materials such as ABS, PVC , CPVC , or
Polypropylene. For details, please refer to the Exhaust Vent (ABS, PVC, CPVC, or Polypropylene Vent)
section on p. 11. Vent installa tions in Canada which utili ze plas tic vent systems must use ven ting that
complies with ULC S636.
General rules for ven ting micro-boiler are:
• Place the micro-boiler as close as possible to the vent termina tion.
• The vent collar of the micro-boiler must be fastened directly to an unobstructed vent pipe.
• Do not weld the vent pipe to the micro-boiler’s vent collar.
• Do not cut or alter the vent collar of the micro-boiler.
• The vent must be easily removable from the top of the micro-boiler for normal service and
inspection of the unit.
• Avoid using an oversized vent pipe or using extremely long runs of the pipe.
• For roo ft op ven tin g , a rain cap or other form of termina tion that prevents rain water from
entering into the micro-boiler must be installed.
• Do not terminate the vent into a chimney. If the vent must go through the chimney , the vent
must run all the way through the chimney with approved vent pipe.
General rules for vent termina tions:
• Avoid loca ting the micro-boiler vent termina tion near any air intake devices . These fans can
pick up the exhaust flue products from the micro-boiler and return them to the building. This
can create a health hazard.
• Locate the vent termina tion so that it cannot be blocked by any debris, at any time . Most codes
require that the termina tion be at least 12 inches (305 mm) above gr ade, but the installer may
determine if it should be higher depending on the job site c ondition and applicable codes.
• A proper sidewall termina tion is recommended when the micro-boiler is vented through a
sidewall.
• Regarding the clearances from the exhaust termina tion to the air inlet or opening , refer to p. 17
to 19.