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.
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°F ( 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: |
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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.
unit is full of vapor, or when the Do not attempt to start the burner
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combustion | chamber is very hot. | when the | I |
when excess oil has accumulated, | |||
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