Penn P66AAB-1 User Manual

P66 Series Electronic Fan Speed Controls Installation Instructions 7
Troubleshooting
Refer to the Operation section for proper operation.
Table 2: Troubleshooting Chart
Problem Possible Cause Possible Solution
No Fan Operation
Input pressure is below operating
range.
No problem, normal operation.
No 24 volt control voltage
Check for 24 VAC at control.
No input pressure to control Alignment. Schrader valve depressor
must depress Schrader valve enough to
allow pressure into capillary.
Bad fan motor Disconnect power. Place a jumper from L
1
to M
1
and connect power. If fan does not
start, motor is bad and should be
replaced.
Pressure transducer problem
See Pressure Transducer
Troubleshooting section.
Fan stops when pressure reaches
the high end of the operating range.
Control is not wired correctly.
See wiring diagrams. Ensure that the
24 VAC power supply is connected
in-phase with the motor power supply.
No Fan Modulation (On-Off
Operation)
Control is not wired correctly. See wiring diagrams. Ensure that the
24 VAC power supply is connected
in-phase with the motor power supply.
Pressure transducer problem
See Pressure Transducer
Troubleshooting.
Fan Starts at Full Speed.
Control is not wired correctly. See wiring diagrams. Ensure that the
24 VAC power supply is connected
in-phase with the motor power supply.
Pressure transducer problem
See Pressure Transducer
Troubleshooting.
Erratic Fan Operation
Control is not wired correctly. Check to see if control voltage (24 VAC) is
on same phase as motor.
Dirty or blocked condenser coil Clean condenser coil.
Pressure transducer problem
See Pressure Transducer
Troubleshooting.
Fan motor is cycling thermal
overload.
Dirty or blocked condenser coil
Clean condenser coil.
Wrong motor for fan speed control
application
Replace with motor approved for fan
speed control application.
Pressure Transducer Troubleshooting
1. Disconnect 6-pin connector from right side of
control.
2. Place a jumper wire between third pin from the
top and the bottom pin on the control, not the
cable.
a. If fan goes to full speed, check for input
pressure.
b. If there is adequate pressure, the transducer
is bad and the control must be replaced.
Repairs and Replacement
Field repairs must not be made. For a replacement
control, contact the Original Equipment Manufacturer
or your local Johnson Controls/PENN distributor.

Penn P66AAB-1 Specifications

Pressure Ratings

control range (low pressure models)	80 to 200 psig (552 to 1379 kPa)
control range (medium pressure models)	140 to 350 psig (965 to 2413 kPa)
control range (high pressure models)	300 to 500 psig (2048 to 3447 kPa)
effective throttling range (low pressure models)	30 psi (207 kPa)
effective throttling range (medium pressure models)	60 psi (414 kPa)
effective throttling range (high pressure models)	90 psi (621 kPa)
maximum working pressure (low pressure models)	200 psig (1379 kPa)
maximum working pressure (medium pressure models)	350 psig (2413 kPa)
maximum working pressure (high pressure models)	500 psig (3447 kPa)
maximum overpressure (low pressure models)	250 psig (1724 kPa)
maximum overpressure (medium pressure models)	400 psig (2758 kPa)
maximum overpressure (high pressure models)	695 psig (4792 kPa)

Electrical Ratings

control voltage	24 VAC, 1VA
line voltage range	208 to 480 VAC
full load amperes (208 VAC)	8.0
full load amperes (240 VAC)	8.0
full load amperes (277 VAC)	6.9
full load amperes (480 VAC)	4.0
locked rotor amperes (208 VAC)	16.5
locked rotor amperes (240 VAC)	16.5
locked rotor amperes (277 VAC)	14.3
locked rotor amperes (480 VAC)	10.5

Operating Environment

maximum ambient temperature (208 VAC)	130°F/54°C
maximum ambient temperature (240 VAC)	130°F/54°C
maximum ambient temperature (277 VAC)	130°F/54°C
maximum ambient temperature (480 VAC)	150°F/66°C
minimum ambient storage temperature	-40°F/-40°C (at all Voltages)
ambient storage temperature range	-40°F/-40°C to 185°F/85°C