A S 5 0 0 0 S E R V I C E M A N U A L
36
8.21 Replacing Power Module
Tools and supplies required:
• Phillips head screwdriver
• flat blade screwdriver
1. Using Phillips head screwdriver, remove the four screws that
connect the board to the frame.
2. Wedge the flat blade screwdriver underneath the board and
carefully pry the board loose.
3. Disconnect the smaller connector.
4. Disconnect the jumper from the Mains Voltage Card.
Fig. 8-63 Power Module
Fig. 8-64 Power Module in position with connections in place
8.22 Replacing Mains Voltage Circuit Card
Tools and supplies required:
• pliers
• Phillips head screwdriver
1. Disconnect the AC Breaker Harness.
2. Disconnect jumper to Power Circuit Card.
3. Disconnect Chiller Pump power.
4. Disconnect two connectors that go to power inlet module (plug).
5. Disconnect the Heater power cable.
6. Using Phillips head screwdriver, unscrew the board from
the metal frame.
Fig. 8-65 Mains Voltage Circuit Card
Fig. 8-66 Mains Voltage Circuit Card in position,
with connections in place
Mains Input Power Connection
