Start-Up After Extended Machine Inactivity; First Diagnostics; Troubleshooting - Mitsubishi Electric MEGR Manual

7.4 Start-up after extended machine inactivity

Before starting the machine, carry out all the maintenance activities.
The specialist Engineer must also carry out adequate checks, calibrations and the start-up procedure.

8 FIRST DIAGNOSTICS

8.1 Troubleshooting ...

List of actions to be taken in case of machine fault.
Fault
High pressure
at the delivery
Low Air Flow
Installation, use and maintenance manual
Cause
Remote condenser
Refrigerant circuit
Fan
Solution
Check that the fan is turning freely
Check the power supply to the fan
Check the condensation controller signal
Check that the condensing coil is clean
Check recirculation of hot air
Check remote condenser sizing
Check refrigerant charge
Check for incondensable
Check the refrigerant circuit's taps
Check the power supply to the fan
Check the analogue output of the speed
reference from the controller
Check for system load losses
Check that the heat exchange coil is clean
Intervention level
User
Service
Service
Service
User
Service
Service
Service
Service
Service
Service
Service
User
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