Eco-King HWB-299, Installation And Service Manual

Page: 46 / 124

E93.1801EN171 HWB installation manual 46
Room air
Commercial applications utilizing the water heater may be installed with a single pipe carrying the flue products to
the outside while using combustion air from the equipment room. In order to use the room air venting option, the
following conditions and considerations must be followed.
• The unit MUST be installed with the appropriate indoor air kit see table below.
• The equipment room MUST be provided with properly sized openings to assure adequate combustion air. Please
refer to instructions provided with the indoor air kit.
• There will be a noticeable increase in the noise level during normal operation from the inlet air opening.
• Using the room air kit makes the unit vulnerable to combustion air contamination from within the building. Please
review the section 9.6.1 "Air contamination" in this manual, to ensure proper installation.
• Vent system and terminations must comply with the standard venting instructions set forth in this manual.
When utilizing the single pipe method, provisions for combustion and ventilation air must be in
accordance with Air for Combustion and Ventilation, of the latest edition of the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, in Canada, the latest edition of CGA Standard B149 Instal-
lation Code for Gas Burning Appliances and Equipment, or applicable provisions of the local
building codes.
Indoor air kit:
Duravent
Centrotherm
10.6.1 A
IR CONTAMINATION
Pool and laundry products and common household and hobby products often contain fluorine or chlorine com-
pounds. When these chemicals pass through the water heater, they can form strong acids. The acid can eat
through the water heater wall, causing serious damage and presenting a possible threat of flue gas spillage or
water heater water leakage into the building.
Please read the information given in the list below, with contaminants and areas likely to contain them. If contam-
inating chemicals will be present near the location of the water heater combustion air inlet, have your installer pipe
the water heater combustion air and vent to another location, per this manual.
Water heater
Termination Color order stock
HWB-299
HWB-399
4” Twin Pipe Side Wall black 4PPS-HTPL 810009745
4” Single Pipe Side Wall Stainless
4PPS-
HSTSL
810009744
4” Bird Screen Stainless 4PPS-BG 810004367
HWB-499
5” Roof black 5PPS-VTML 810009770
5” Single Pipe Side Wall Stainless 5PPS-HSTL 810009763
6” Single Pipe Side Wall Stainless 6PPS-HSTL 810009784
6” Bird Screen Stainless 6PPS-BG 810004276
Water heater
Termination Color order
HWB-299
HWB-399
4” Twin Pipe Side Wall black ISLPT0404
4" Termination Tee black ISTT0420
4" Termination Pipe black ISEP04 or ISEP0439
4” Bird Screen black IASPP04
HWB-499
5" Termination Tee black STT0520
6" Termination Pipe grey ISEP0620 or ISEP0639
6" Termination Tee grey ISTT0620
6” Bird Screen black IASPP06
5” Bird Screen Stainless IASSS05
WARNING