ITS Telecom ITS-17VD, Руководство по установке

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8. MAINTENANCE
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The heat pump water heater is highly automatic equipment, which is checked periodically over its
unit state in application. If the unit can be maintained effectively for a long time, the operation reliability
and lifespan of the unit will be greatly enhanced.
1 The water filter installed outside the unit should be cleaned periodically to ensure a clean water supply
in the system in case the unit may be damaged due to the blocked dirty water filter.
2 In using and maintaining this unit, the customer should pay attention to this point: all the safety
protection equipment in the unit has been set properly before leaving the factory, therefore, it is for
-bidden to adjust them without permission.
3 Check frequently whether the power supply and electrical system connection of the unit are firm and
whether the electrical components operate abnormally. If there is, repair or replace in time.
4 Check frequently whether water supply of the system, water tank safety valve, liquid level controller,
and air discharge equipment operate normally in case air should enter the system to lead to decreased
water cycle so as to influence the heating ability of the unit and reliability of unit operation.
5 Check whether water pump and water pipe valves can operate normally, and whether there is any leak
-age in water pipeline and water pipe connections.
6 The surrounding of the unit should be kept clean with good ventilation. Clean regularly (1-2 months)
the air side heat exchanger to maintain a good heat exchange effect.
7 Check frequently the operation state of each part of the unit. Check whether there is oil dirt in unit
pipeline connection and air inhale valve to ensure there is no leakage of the unit refrigerant.
8 Do not pile any other object around the unit in case the air exhale should be blocked. The surrounding
of the unit should be kept dry and clean with good ventilation.
9 If the machine will be stopped for a long time, discharge the water in unit pipeline, cut off power supply,
cover with protection shield, and check the system comprehensively before starting the unit to operate
again.
10 If there is anything wrong with the unit and the customer can not solve it, make a phone call to local
special service department of our company so that we could send professional staff to fix it in time.
11 For cleaning of mainframe condenser, we suggest that 50
℃
-60
℃
hot phosphate liquid with a density
of 15% can be used to clean it. Start the mainframe-equipped cycle water pump to clean for three hours
and then clean with running water 3 times. (In pipeline installation, it is suggested to reserve a tee
connection and block one of the connection with silk block) so as to connect pipes in cleaning. It is
forbidden to use corrosive detergent to clean the condenser.
12 Furring should be removed from the water tank after using for a period of time (usually two months
depending on water quality in local area).
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