evoheat EVO MAX 64, Руководство по установке и эксплуатации

Страница: 13 / 26

P a g e | 13
3.9 Trial Operation
Start the heat pump by pressing the “ or “ key on the controller. Check whether the water pump is running, if
it is running normally there will be 0.2MPa on the water pressure meter.
When the water pump rungs for 1 minute, the compressor will start. Hear whether there is a strange sound coming
from the compressor. If an abnormal sound occurs, please stop the unit and check the compressor. If the compressor
runs well, look for the pressure meter of the refrigerant.
Check whether the power input and running current is in line with the manual. If not stop the unit and check for why
this may be occurring.
Adjust the valves on the water loop to make sure that the hot (cool) water supply to each door is good and meets the
requirement of heating (or cooling).
Review whether the outlet water temperature is stable.
The parameters of the controller are set by the factory, the user must not change these.
3.10 Maintenance
Check the water supply and the air vent frequently to avoid lack of water or air in the water loop.
Clean the water filter periodically to keep the water good quality. Lack of water and dirty water can damage the unit.
The heat pump will start the water every 72 hours when it is not running to avoid freezing.
Keep the unit in a clean, dry place with good ventilation. Clean the heat exchanger every few months to keep a good
heat exchange rate and save energy.
Check each part of the unit and the pressure of the system. Replace any failing parts and recharge the refrigerant if
needed.
Check the power supply and the electrical system, make sure all electrical components are wired well and working.
If the heat pump is not to be used for an extended period of time, please drain all the water out. Drain the water out
from the lowest point of the heat exchanger to avoid freezing in winter. Water recharge and full inspection on the heat
pump is needed before being restarted.
The water loop of the heat pump MUST be protected from freezing in winter. Do not shut off the power supply to the
heat pump in winter. When the air temperature is below 0°C, if the inlet water temperature is above 2°C and below 4°C
the water pump will begin freezing protection. If the inlet water is lower than 2°C, the heat pump will begin heating.