47
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.
c. Make certain the thermostat will automatically start and stop the appliance.
NOTICE: Heat exchanger oil will burn off on initial firing creating an unpleasant
odor. To prevent this odor from occurring more than once, it is suggested the
heating section be allowed to run for 30 minutes, or until odor has dissipated.
Summary of Contents for OH6FA072D48N
Page 5: ...2...
Page 33: ...30 Heating Speed Set ups 2 Stage OH6FX072DV4 Figure 18 2 ECM 2 stage blower motor speed chart...
Page 64: ...61 VIII Sequence of Operations Flow Chart...
Page 65: ...62...
Page 66: ...63 IX Trouble Shooting Flow Chart...
Page 67: ...64...
Page 68: ...65...
Page 69: ...66...
Page 70: ...67...
Page 72: ...69 Appendix A Replacement Parts Replacement Parts for OH6FA072D...
Page 73: ...70 Replacement Parts for OH8FA119D...
Page 74: ...71 Appendix B Wiring Diagrams OH6FA072D48 PSC Wiring Diagram...
Page 75: ...72 OH6FA072DV4 ECM Wiring Diagram...
Page 76: ...73 OH6FX072DV4 ECM 2 Stage Wiring Diagram...
Page 77: ...74 OH8FA1119D60 PSC Wiring Diagram...
Page 78: ...75 OH8FA1119DV5 ECM Wiring Diagram...
Page 79: ...76...