Tankless Water Heater - Waiwela

Installing the water heater:Installation Check ListA. Indoor Water Heater Location❑ Close to area of vent termination.❑ Indoors and protected from freezing temperatures.❑ Proper clearance from combustible surfaces observed.❑ Sufficient fresh air supply for proper operation ofwater heater.❑ Air supply free of corrosive elements andflammable vapors.❑ Provisions made to protect area from water damage.❑ Sufficient room to service heater.❑ Combustible materials, such as clothing, cleaningmaterials, rags, etc. clear of the heater andvent piping.❑ Water heater is properly attached to the wall.B. Water Supply❑ Water supply has sufficient pressure.❑ Air purged from water heater and piping.❑ Water connections tight and free of leaks.❑ Water filter is clean and in place.❑ Materials used are as instructed in this manual.❑ Water pipes are insulated and protected fromfreezing.C. Gas Supply❑ Gas type matches rating plate.❑ Gas supply pressure is sufficient for the water heater.❑ Gas line equipped with shut-off valve, union andsediment trap.❑ Approved pipe joint compound used.❑ Soap and water solution used to check all connectionsand fittings for possible gas leak.❑ Gas Company inspected installation (if required).D. Relief Valve❑ Pressure Relief Valve properly installed and dischargeline run to open drain.❑ Discharge line protected from freezing.E. Co-Axial Venting❑ Vent pipe material should be category III and meetUL1738 in US and ULC S636 in Canada.❑ Connector(s) pitched (1/4” per foot of lengthminimum) downward or UPWARD totermination. If UPWARD, a condensate trap must beinstalled close to the heater. See page 13 and 14.❑ Connector(s) securely fastened together with hightemperature silicone (500°F [260°C]) andair-tight.❑ All co-axial vent runs are properly supported.❑ Vent terminal is properly installed.❑ Sufficient combustion air is available.❑ Maximum and minimum vent lengths are observed.F. Electrical Wiring❑ Voltage matches rating plate.❑ Water heater is properly grounded.❑ Supply cord and/or wiring meets all local codes.24AP14558-1 (09_08) DV 66 Manual.indd 249/17/2008 3:08:03 PM