Field Controls FAPV180-AC Manual page 11

Tip: Tip: If the ventilation controller or thermostat's output for ventilation consists of two V or Vent terminals that If the ventilation controller or thermostat's output for ventilation consists of two V or Vent terminals that
are internally connected by dry contacts only, simply jumper the HVAC terminal R to one of the two V are internally connected by dry contacts only, simply jumper the HVAC terminal R to one of the two V
terminals, connect T1 to the other V terminal, and connect T2 to the HVAC terminal C. terminals, connect T1 to the other V terminal, and connect T2 to the HVAC terminal C.
8. Connect the two low-voltage conductor wires from terminals T1 and T2 to the two appropriate terminals
on the ventilation controller.
NOTE: For the FAPV to operate when wired for intermittent operation, 24 volts AC must be present on the two NOTE: For the FAPV to operate when wired for intermittent operation, 24 volts AC must be present on the two
terminals of the ventilation controller connected to T1 and T2 during a call for ventilation by the controller. terminals of the ventilation controller connected to T1 and T2 during a call for ventilation by the controller.
If unsure about control wiring connections, contact Field Controls Technical Support for assistance. If unsure about control wiring connections, contact Field Controls Technical Support for assistance.
9. Verify that the blower wheel spins freely and is free from obstruction, and that the interior of the FAPV fan
unit is free of debris and other foreign objects.
10. Tighten the conduit/strain relief connector clamp onto the electrical cable or conduit.
11. Replace the electrical access cover of the FAPV fan unit using only the original factory blunt-tipped screws
that were removed from the cover.
WARNING: DO NOT USE INSTALLER-SUPPLIED SCREWS TO ATTACH THE ELECTRICAL ACCESS COVER TO THE WARNING: DO NOT USE INSTALLER-SUPPLIED SCREWS TO ATTACH THE ELECTRICAL ACCESS COVER TO THE
FAPV. FAPV. An electrical hazard may result, possibly causing bodily injury, fi re hazard, and/or equipment An electrical hazard may result, possibly causing bodily injury, fi re hazard, and/or equipment
damage. The use of longer and/or sharp-pointed screws may cause damage to electrical wiring a damage. The use of longer and/or sharp-pointed screws may cause damage to electrical wiring a
and/or components inside the FAPV fan unit. Contact Field Controls Technical Support for and/or components inside the FAPV fan unit. Contact Field Controls Technical Support for
instruction if alternate fastening methods must be used. instruction if alternate fastening methods must be used.
12. Replace the speed control knob by aligning the fl at on the speed control stem with the fl at in the knob,
and use light pressure to push the knob fully down onto the speed control stem.
13. Turn the speed control knob to the Max position.
14. If an additional 10" x 10" x 2" air fi lter is to be installed (not included), refer to the Maintenance and Filter
Installation section in this manual and install the additional fi lter in the FAPV.
15. Replace the fi lter access cover by inserting the cover's two "fi ngers" fully into the corresponding slots in the
electrical compartment cover, push the cover down fi rmly onto the FAPV and tighten the wingnut to
secure the cover in place.
TESTING AND AIRFLOW ADJUSTMENTS
Taking Air Flowrate Measurements: Several methods of measuring the ventilation air fl owrate as provided by the
FAPV ventilation system may be used, see Figure 6:
• • Air Flow Capture Hood: Air Flow Capture Hood: Use of an air fl ow capture hood (balometer) capable of measurement from 20 cfm
to 250 cfm is recommended for the most accurate measurement of air fl owrate.
1. Turn on the fl ow hood and perform any "zero" procedure as directed by the manufacturer.
2. Set the fl ow hood for cfm (cubic feet per minute) measurement using the capture hood.
3. Press the fl ow hood against the wall over the air intake hood, being careful not to obstruct the
inlet of the air inlet (intake) hood, and take an airfl ow reading.
page 11 of 20 P/N 780104900 Rev A 09/20