27
This formula can be used to calculate the correct setting for the adjustable heat anticipator:
Ammeter reading = Anticipator Setting.
No. of wire loops
Or in this case,
_2.5 A. = 0.25 A. (Anticipator Setting)
10
4. Adjust the position of the anticipator indicator to match the calculated ammeter setting.
If a slightly
longer cycle is desired, the pointer should be moved to a higher setting. Slightly shorter cycles can be
achieved by moving to a lower setting.
5. Remove the meter jumper wire and reconnect the thermostat. Check the thermostat in the heating
mode for proper operation.
If a digital ammeter is used, read the current draw directly from meter. (Steps 1 through 3 are not
required.) The meter reading is the correct anticipator setting.
L. Blower Motor Speed Selection:
: Turn off the electrical power to the unit, before attempting to change supply air
blower speed wiring.
The furnace comes from the factory with the proper cooling speed selected and the heat rise set to
approximately 65
°
F on mid-fire.
The heat rise is determined by the nozzle size and the switch selection on the control board located in the
vestibule compartment.
For ECM systems, switches 1, 2 & 3 of switch block SW1 (the six switch red block) are used to select the
proper blower speed. Please refer to (figure 15 and table 18).
Summary of Contents for Thermo Pride OH6FA072D48B
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...