Operation - Dunkirk Empire II Installation & Operation Manual

CHECKING AND ADJUSTING CONTROLS
A boiler using a tankless coil is configured with a Honeywell L8124C Combination Hi/Low
Limit Aquastat Relay (refer back to the SYSTEM PIPING section for more details). A boiler
not using a tankless coil is configured with a Honeywell L8148A Hi Limit Aquastat Relay.
Instructions for the control provided are included with the boiler.
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IMPORTANT - You or your installer must follow these instructions carefully.
ADJUST OPERATING CONTROLS: For both aqaustats, use the following settings for the
first adjustment:
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High Limit: Baseboard and Convectors - 200°F
Standing Radiators - 180°F
Low Limit (when used) - 140 ° (increase if hotter domestic water is required, but low limit
set point must be at least 20°F less than the high limit set point)
Differential (when used)- 10°F
ADJUST THERMOSTAT HEAT ANTICIPATOR TO: 0.2 AMPS
CHECK THERMOSTAT OPERATION: The thermostat location has an important effect on
the operation of the boiler system. Be sure to FOLLOW THE INSTRUCTIONS included with
your thermostat. Typically - the thermostat is located about five feet above the floor on an
inside wall. The thermostat should be located to sense average room temperature, so avoid
the following:
DEAD SPOTS - behind doors, corners, and alcoves
HOT SPOTS - concealed pipes, fireplace, TV sets, radios, lamps, direct sunlight, kitchens
COLD SPOTS - concealed pipes or ducts, drafty stairwells or door ways, unheated
room or wall of an unheated room
When the temperature on the thermostat is set above the indicated thermostat temperature,
the boiler's burner should start. Make certain: once the room temperature reaches the
selected temperature setting, the thermostat should turn the boiler's burner off, and once the
room temperature falls a few degrees the boiler starts operating again. Do not start the
burner unless all cleanout doors are secured in place.
Do not attempt to start the burner when excess oil has accumulated, when
the unit is full of vapor, or when the combustion chamber is very hot.
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