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MULTI V Water IV
11. Test Run
11.6 Maintenance/Repair checklist
Checkpoint
Product operating condition
Heat exchanger cleaning (Wash)
Strainer cleaning
Water quality check
Refrigerant leakage check
Indoor unit filter cleaning
( : Check mark)
CAUTION
•
The above checklist is set based on the minimum period and more frequent checking can be required depending
on the operating condition/water quality condition.
•
When cleaning the heat exchanger, make sure to take parts out or lock the value so that chemical detergent
does not penetrate into the pressure gauge etc.
•
When cleaning the heat exchanger, check the connecting part of the water pipes prior to cleaning so that the
chemical detergent does not leak.
•
After sufficiently mixing the chemical detergent with water, start cleaning.
•
Cleaning the heat exchanger is easier at the initial stage and becomes difficult after the scaling has
accumulated.
•
In areas where the water quality is poor, cleaning is required periodically.
Because chemical detergent has strong acidity, it must be washed off thoroughly with water.
•
To check whether it is cleaned well inside, remove the hose and check the inside.
•
Purge the air to remove any air inside the water pipe.
•
After checking, always check whether the heat water supply is flowing normally flowing before operating the
product.
Heat Pump
1
2
Period (Year)
3
4
5
6
7
8
Installation of Outside Units
[unit:mm]
9
10
11
12
13
14
15
53
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