Service manual

7 H-Frame Size Disassembly and Assembly Instructions
7.1 Electrostatic Discharge (ESD)
CAUTION
Frequency converters contain dangerous voltages when
connected to the main voltage. Never perform any
disassembly when power is applied. Remove power to the
frequency converter, and wait until the frequency
converter capacitors fully discharge. Only a competent
technician must carry out the service.
Many electronic components within the frequency
converter are sensitive to static electricity. Voltages so low
that they cannot be felt, seen, or heard can reduce the life,
affect performance, or completely destroy sensitive
electronic components.
CAUTION
Use correct ESD procedures to prevent damage to
sensitive components when servicing the frequency
converter.
NOTE
Frame size is used throughout this manual where ever
procedures or components differ between frequency
converters based upon the unit's physical size. Refer to
1.4.1 Frame Size Definitions to determine frame size
definitions.
7.2 General Disassembly Procedure
This procedure explains how to remove the outer parts of
the frequency converter that are common for H frame
sizes. When this procedure is completed, the inside
components are accessible.
1. Remove the plastic cover beneath the LCP with a
flat-edged screwdriver.
2. Loosen and remove 4 screws (T20) on the front
cover.
3. Remove the front cover.
7.3
H6 Frame Size Disassembly and
Assembly Instructions
7.3.1 Control Card and Control Card
Mounting Plate
1. Remove the LCP and the protection foil
underneath it.
2. Remove the 3 screws (T10) from the control card.
3. Remove the control card.
4. Remove the 4 bolts on the bottom of the frame
underneath the cable connector.
5. Remove the screws (T10) in the control card
mounting plate.
6. Press barbs on ribbon cable and remove it.
7. Remove screws (T20) in cover plate.
8. Remove the control card mounting plate.
Reinstall in the reverse order.
H-Frame Size Disassembly a...
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HVAC Basic Drive Service Manual
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