20
GB
13. Warranty and Servicing
X
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
Table 2. Replacement Frequency
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.
Names of Main Parts
Check Frequency
Maintenance Frequency
[Replacement or Repair]
Names of Main Parts
Check Frequency
Maintenance Frequency
[Replacement or Repair]
Compressor
Every year
Every 20,000 hours
Expansion valve
Every year
Every 20,000 hours
Motor
(for fan, drain pump, etc.)
Every 20,000 hours
Valve
(electromagnetic valve, four-way valve, etc.)
Every 20,000 hours
Bearing
Every 15,000 hours
Sensor
(thermistor, pressure sensor, etc.)
Every 5 years
Electronic board
Every 25,000 hours
Drain pan
Every 8 years
Heat exchanger
Every 5 years
Names of Main Parts
Check Frequency
Replacement Frequency
Names of Main Parts
Check Frequency
Replacement Frequency
Fan belt
Every year
Every 5,000 hours
Note 1
Fuse
Every year
Every 10 years
Smoothing capacitor
Every 10 years
Crankcase heater
Every 8 years
00gb_WT05475X02_7.book Page 20 Tuesday, June 16, 2009 12:33 PM
