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HORIZONTAL LOW-PROFILE FAN COILS
MAINTENANCE
Fan and Motor
1.
Disconnect all incoming power before servicing the unit.
2.
Price fan powered fan coil units are supplied with
permanently lubricated motors.
3.
The blower and motor should be inspected annually for
accumulation of dust and dirt. Clean as necessary.
4.
To access blower and motor for servicing, remove
the bottom access panel or alternate access panels if
equipped.
Motor may be very hot. Ensure motor has cooled
CAUTION:
before service.
5.
Motors are provided with thermal overload protection.
If the motor overheats and trips the thermal overload, it
will automatically reset after cooling down to a proper
operating temperature.
6.
If field amperage draw readings of the fan motor are
required, measurements should be taken with a true RMS
meter. Non-true RMS meters will not provide accurate
reading due to alteration of the sine wave by the fan speed
control. Refer to Page 7 for motor voltage equations.
Coils
1.
Disconnect all incoming power before servicing unit.
2.
To access coils for servicing, remove the coil access door
(optional), or remove blower and motor assemblies.
3.
The coil should be inspected periodically for accumulation
of dust and dirt. Clean as necessary. Cleaning can be
done by brushing the coils in the direction of the fins.
Compressed air can also be used to blow out dust
particles in the coil. Vacuum all dust particles so they
cannot damage the blower and motor.
Filter(s)
1.
Filters, if supplied, should be replaced or removed after
system start-up.
2.
If filters are used beyond system start-up they should be
changed regularly to avoid excessive restriction of air flow.
The time interval between each replacement should be
established based on regular inspection of the filter and
should be recorded in the log for each unit.
3.
Refer to the "Replacement Parts" section of this manual
for list of replacement filter media.
4.
If the replacement filters are not purchased from the
factory, the filters used should be the same type and size
as that furnished from or recommended by the factory.
Consult the factory for applications using filter types other
than the factory standard or optional product.
Electronically Commutated Motor (ECM) Information
Do not switch 120/208/240/277 VAC power to turn ECM
motor on and off. Instead control the 24VAC signal or BAS
signal to turn the ECM motor on and off. The ECM motor
has large capacitors that charge quickly on mains power up.
Switching on several motors frequently could reduce building
power quality and is not recommended.
Standard ECM Speed Controller
The Price standard speed controller allows manual adjustment
of the fan flow using the adjustment dial on the control board
and a voltmeter. Remote control of the fan speed is also
possible with the BAS input. The following chart describes the
controller response to a 0-10 VDC input.
Input Voltage
0-1 VDC
1-2 VDC
2-10 VDC
Note: Refer to "Fan Curves" performance data documents for fan curves.
CONTROL ASSEMBLY LABEL
ECM CABLE CONNECTION
NOTE:
Cable must be installed in the configuration or the unit
will not function as expected.
priceindustries.com | HORIZONTAL LOW-PROFILE FAN COILS - Manual
Mode of Operation
Manual Control
Fan Off
Remote Control 0 - 100%
7
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