MPI KWH124 - Pre-Operation Checks and Startup

C. PRE-OPERATION CHECK LIST
1. Water Leaks
Open the valve and run water through unit to see that water runs properly through heat
exchanger. No water should be leaking from it, or any fittings.
2. Fuel Leaks
Make sure that there is no fuel leaking from fuel tank, filters, valves or from any of the
piping connections.
3. Location
Make sure proper clearances are kept around unit and there is nothing flammable nearby.
Keep a distance from walls of combustible material.
From left side 7 in (180 mm)
From right side 19 in (505 mm)
From back of heater 8 in (205 mm)
From Heater to closet door 29 in (735 mm)
Flue pipe to combustible surface, vertically 9 in (229 mm)
Flue pipe to combustible surface, horizontally 9 in (229 mm)
4. Flue Connection
All flue connections must be air tight and sealed so that no fumes can leak into the room.
5. Unit Wiring
The power supply is properly connected and grounded to unit.
D. START UP AND OPERATION
1. Readying Safety Device For Action
Press and turn off "Power" switch. The "Power" light goes off.
Press "Power" switch again, thus turning it on. This procedure readies safety devices for
action when necessary.
2. Starting Unit
With the "Power" switch in the "ON" position, "Power" lamp should
be on.
Open hot water faucet and unit will ignite automatically.
(While burner has flames, run lamp stays on.)
Should run light go off, a code "4" may blink signaling air in fuel
supply line. Refer to installation Manual "Test Run"
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