Warranty And Servicing - Mitsubishi Electric PFAV-P250-500-750VM-E Operation Manual

13. Warranty and Servicing

Periodic maintenance and checks by an authorized service person are required to ensure that the unit is maintained in a good condition for a long period of
time, and that it may be used with confidence.
Check Frequency for the standard maintenance and checks, and the Maintenance Frequency associated with periodic checks are as follows.
<Maintenance and Check Frequencies>
1. Preventative Maintenance Guidelines
The following maintenance frequencies are a guide to the replacement of parts as based on the results of periodic checks and scheduled frequency of repairs. They do
not imply that replacement is always necessary in accordance with the maintenance frequency (except for consumables such as fan belts).
Note that the following does not indicate maintenance periods.
Table 1. Maintenance and Check Frequencies
Names of Main Parts
Compressor
Motor
(for fan, drain pump, etc.)
Bearing
Electronic board
Heat exchanger
Table 2. Replacement Frequency
Names of Main Parts
Fan belt
Smoothing capacitor
Note 1: The fan belt needs to be adjusted regularly.
2. Cautions
• The maintenance and check frequencies in the table above are applicable under the following conditions of use.
Normal conditions of use, with infrequent starting and stopping (varies with model, however interval of starting and stopping would normally use is generally six times or
less per hour).
• The maintenance interval may need to be reduced under any of the following conditions.
1 Use under conditions of high temperature or humidity, or in locations in which variations in temperature and humidity are considerable.
2 Use in locations in which power supply variations (e.g. voltage, frequency, waveform distortion) are considerable. Note that the unit cannot be used outside the
allowable range of conditions.
3 Use in locations subject to considerable vibration and shock.
4 Use in an atmosphere containing toxic gases (e.g. dust, salt, sulfuric acid vapor, hydrogen sulfide) or oil mist etc.
5 24 hours using.
• Unexpected events may occur even when periodic checks are implemented based on the check frequency. In such cases the appropriate repairs outside the period of
the warranty are chargeable.
20
Maintenance Frequency
Check Frequency
[Replacement or Repair]
Every 20,000 hours
Every 20,000 hours
Every year
Every 15,000 hours
Every 25,000 hours
Every 5 years
Check Frequency Replacement Frequency
Every 5,000 hours
Note 1
Every year
Every 10 years
Names of Main Parts
Expansion valve
Valve
(electromagnetic valve, four-way valve, etc.)
Sensor
(thermistor, pressure sensor, etc.)
Drain pan
Names of Main Parts
Fuse
Crankcase heater
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Maintenance Frequency
Check Frequency
[Replacement or Repair]
Every 20,000 hours
Every 20,000 hours
Every year
Every 5 years
Every 8 years
Check Frequency Replacement Frequency
Every 10 years
Every year
Every 8 years