RT-SVX073A-EN
153
Seal Adjustment
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
1. Disconnect all electrical power.
2. Loosen the diameter seal adjustment screws and back
the seals away from the wheel surface, see Figure
103, p. 153.
3. Rotate the wheel clockwise until two opposing spokes
are hidden behind the bearing support beam.
Figure 103. Wheel rotation
4. Using a folded piece of paper as a feeler gauge,
position the paper between the wheel surface and the
diameter seals.
5. Adjust the seals toward the wheel surface until slight
friction on the paper feeler gauge is felt when the gauge
is moved along the length of the spoke.
6. Check the seal adjustment through a full rotation of the
wheel. Re-tighten the adjusting screws and recheck the
clearance with the paper-feeler gauge.
Drive Motor and Pulley Replacement
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
1. Disconnect all electrical power.
2. Remove the belt from the pulley and position it
temporarily around the wheel rim.
3. Measure and record the distance from the inner edge of
the pulley to the mounting wall.
4. Loosen the set screw in the wheel drive pulley using an
Allen wrench and remove the pulley from the motor
drive shaft.
5. While supporting the weight of the drive motor in one
hand, loosen and remove the four mounting bolts.
6. Install a replacement motor with the hardware kit
supplied.
7. Install the pulley and adjust it to the distance recorded
earlier in this procedure.
8. Tighten the set screw to the drive shaft.
9. Stretch the belt over the pulley and engage it in the
groove.
Compressor Startup
NOTICE
Compressor Failure!
Failure to follow instruction below could result in
compressor failure.
Unit must be powered and crankcase heaters
energized at least 8 hours BEFORE compressors are
started.
1. Ensure that the “System” selection switch at the remote
panel is in the “Off” position.
2. Before closing the disconnect switch, ensure that the
compressor discharge service valve for each circuit is
back seated.
NOTICE
Compressor Damage!
Excessive liquid accumulation in the suction lines
could result in compressor damage.
Do not allow liquid refrigerant to enter the suction
line.
Unit Startup
To Next Page
Loading...
