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All installations and services must be performed by qualified service personnel.
After 15 to 20 minutes of continuous operation, the temperature rise through
the furnace must fall within a range of 50° to 80° F. If the outlet or supply
duct temperature is too high, check to make sure the return air filter is clean,
the return air registers are free from obstruction, the outlet registers are
properly adjusted and clear, and the supply and return air ducts are open.
The circulating air blower is not moving enough air if the supply air
temperature is still too high. Before proceeding further, turn off the power
supply to the appliance and remove the vestibule cover. The speed of the
blower must be increased by changing the switch setting on the control board,
please refer to the table in Section 3.
5. Checkout Procedure
Before any system of oil piping is finally put into service, it shall be carefully
tested to assure that it is “gas-tight”, as indicated in the Heating System
Initial Startup section of this manual.
NOTICE: All controls on the unit should be checked for proper
functioning prior to the qualified service personnel leaving the job site.
Specifically the following should be checked:
a. With heating system in normal heating operation, check to make certain
blower will start and stop automatically under control of the indoor
thermostat.
b. Check safety limit control as follows:
i. Shut off incoming power.
ii. Block return air opening or disconnect blower motor leads.
iii. Restore power to appliance.
iv. In the heating mode, set the thermostat above room temperature
producing “a call for heat”.
v. When high air temperatures are reached within the heating section, the
high limit control should act to shutdown the burner.
vi. Shut off the electrical power.
IMPORTANT: Remove blockage or reconnect blower motor and
restore power.
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