Valdemar Energy V1 Series, Operating Instructions Manual

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Maintenance
The EVI DC Inverter air source heat pump unit is a highly automation device. If the units are cared and
maintained effectively and regularly, the operation reliability and the lifetime of the unit will be highly
improved.
Important tips below shall be paid more attention to when doing the maintenance:
1. The water filter shall be cleaned termly, to make sure the water is clean, and avoid any damage caused
by the filter blockage.
2. All the safety protection devices have been set up before leaving the factory,
and it’s
forbidden to
adjust it by oneself. We take no responsibility for any damage caused by the
user’s
self-adjustments.
3. The surrounding of the unit shall be clean, dry and draughty. If the side of the heat exchanger could be
cleaned termly (every 1-2 month), the heat exchanging efficiency will be better, and energy saving.
4. The water supplement of the water system and air discharge device shall be checked frequently, to
avoid the air to enter the system, causing the water circulation to decrease, or any water cycle
disturbances, or it will affect the
unit’s
cooling or heating efficiency and the working reliability.
5. The power of the unit and the electrical wiring shall be checked frequently; the wiring should be
fastened, and the electrical component shall be checked for abnormalities. If abnormal, it shall be repaired
or replaced, the unit shall be connected to the ground reliably.
6. Check every component during the unit operation, frequently. Check whether the working pressure of
cooling system is normal or not. Check the pipe splice and the air injection valve whether have grease or
dirt. Make sure
there’s no
refrigerant leakage in the cooling system.
7.
Don’t
stack any sundries around the unit, to prevent blocking of the air inlet and outlet. The
surrounding of the unit shall be kept clean, dry and draughty.
8. The water in the water system shall be discharged if the unit needs to take a long break after
running for a period. If the unit is off for long periods of time, then it should be covered for a longer life
expectancy. Only after the water system is replenished full of water and the unit is checked, and the
power of the unit is on for at least 6 hours. Then the unit could be started up again.
Notice:
The unit should be equipped with the dedicated power supply. The voltage range should be within ±10%.
The switch should be an automatic air switch. The settings of the electric current should be 1.5 times of
the running current and equipped with lack of phase safeguard. The knife switch is forbidden to use in the
unit.
The unit must be powered on to warm up for at least 12 hours before running every season. If the cooling
only models haven’t been working for long term in winter, make sure to discharge out all the water, in
case the pipe and the unit are damaged by frost. The master controller and the unit should be in
correspondence and c
an’t
be powered off if the heating only modes stop working for long term in winter,
to avoid frost damage.
The heat pump switch
shouldn’t
be operated frequently, and never above 4 times within one hour. Prevent
the electric cabinet to be affected with damp.
It’s forbidden to flush the EVI DC inverter air source heat pump with water, avoid any electric shock or
other accidents.