ES AWH11-V5+, User Manual

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2.8 Water pipe connection
After installing the unit, please connect the water inlet and outlet pipe according to the local .
Please carefully select and operate the water pipe.
After connection, the water piping should be pressure tested, cleaned before use.
1) Filter
A mesh filter must be installed in front of the water inlet of the unit and water tank, to keep the water
quality and collect impurity contained in the water. Take care to keep the water filter mesh towards the
bottom. Check valve is recommended to be installed at both sides of the filter, so as to clean or change the
filter in a easier way.
regulations
2) Insulation
All pipes running hot water should be well insulated. The insulation
must be tied up tightly without gap (But please don't wrap up the
check valve for future maintenance).
3) Requirements of water quality
A
.
Chloridion element in the water should be less than 300ppm(temperature is less than 60
℃).
B
.
PH value of water should be from 6 to 8.
C
.
The water with ammonia can't be used for the unit.
If the water quality is bad, or water flow too little, scale formation or clogging may happen after unit
running for a long time, then the efficiency of cooling or heating will be low or the unit will work
abnormally.
Please clean water before use, or use purified water. Make sure the water quality is good enough to keep the
unit long-term running in high efficiency.
One way valve
Drain pipe
Filter
Ball valve
City water inlet
Connect to unit
water inlet
Please ensure enough water pressure to send the water to the required height.
If the water pressure is not enough to maintain proper water flow rate for the system,
please add a water pump to increase the pumping head.
2. Installation
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