DAYLIFF HPW150, Installation & Operating Manual

Page: 9 / 32

7
A
E
B
C D
F
Model
HPW150
HPW200
HPW300
A B C D E F
1670 1214 246 346 198 500
1638 1013 280 380 100 620
2038 1413 280 380 100 620
3.3 Water Pipe Installation Instructions
The relief valve needs to be descaled to remove calcium
carbonate and ensure no obstacles. Outlet temperature of
drainage port may be high and caution must be exercised.
NOTE
Ÿ Keep the handle of safety valve free and ensure drainage port is kept free of debris.
Ÿ After setting up pipeline, open the valve both the cold and hot water valve to fill the
water tank and close inlet valve when water overflows from water outlet. Inspect the
pipeline and ensure that there is no water leakage.
Ÿ When intake pressure is below 1.5 Bar, a booster pump may be installed. When
intake pressure is greater than 6.5 Bar a relief valve must be installed to protect the
water tank from early failures.
Ÿ
During operation, condensed water droplets may be formed, ensure proper drainage
is provided as guided below
Do not use iron pipe to connect to heat pump, instead use CPVC
pipe, PPR pipe or UPVC pipe
WARNING
Ÿ Water pipes work life should not be less than heat pump’s work life.
Ÿ Install relief valve of G1/2’’, 8bar and ensure that the drainage pipe which connects
with the relief valve, is not blocked.
Fig 6: Connection Dimensions