Mitsubishi Electric ecodan PUHZ-W50VHA2 User Manual page 64

Ecodan Maintenance
Model Number
Mechanical Tasks
1. Inspect and clean heat exchanger.
2. Visually for signs of oil leaks which may indicate a refrigerant leak (check
for leaks if necessary).
3. Check integrity of water pipe work and lagging.
4. Check all electrical connections including mains isolator.
5. Check unit operation voltage and record.
On completion check that the whole system is working satisfactorily.
Frequency of Visits:
Major Visit Once per year
Mitsubishi Electric recommends that the frequency of maintenance visits to be a maximum of 12 months between
inspections.
Frequency of maintenance may increase dependent upon the equipment environment and local water conditions
e.g. hard water, scale forming, water containing a high proportion of solids.
Failure to maintain the system to the above minimum recommendations could result in the warranty becoming null
and void.
ENGINEERS FORMS
Maintenance Sheet
Serial Number
Frequency
Major Visit
Major Visit
Major Visit
Major Visit
Major Visit
62
Records / Notes
Table 3.7
63