Start furnace blower motor by placing the thermostat fan switch in continuous position with no heating or cooling demand. Turn on power. Refer to the manufacturer’s literature for the list of air volumes and equivalent draft gauge readings. Observe draft gauge reading, if reading is below required air volume, increase blower speed. If reading is above required air volume, decrease blower speed. Refer to furnace wiring diagram for changing direct drive blower speed. On belt drive blowers, check amperage draw on motor by connecting an ammeter to one leg of the motor supply line and comparing this reading with the full load amps listed on the motor nameplate. The motor pulley must be adjusted not to exceed the motor nameplate full load amps for motor installed. After required draft gauge readings are obtained, remove draft lines and insert snap hole plugs in air test holes.
CONNECTION TO HOT WATER BASEBOARD SYSTEM:
HOT WATER BASEBOARD GUIDELINES
Install good quality (even commercial grade) hot water baseboard. Sterling® is a preferred brand (http://www.sterlingheat.com/). Cheaper grades produce fewer BTU’S per linear foot of b aseboard. Look for copper tube/aluminum finned elements, full back plates and die formed hangers with nylon or roller slides to eliminate noise. In addition: Size the baseboard for 140°F supply water temperature and a 20°F temperature drop. Circuit baseboards in a parallel configuration so that all elements receive the same 140°F supply water.
Use copper or oxygen barriered PEX for supply and return piping.
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Hydronic System Design Manual ©DECTRA CORPORATION - March 2013
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