HTW FP-27AA Manual De Usuario E Instalacion página 16

(3) Water pressure test need subsection lifting pressure, be slow evenly when lifting pressure,
carefully check whether each joint leaking after pump stop working and keep steady pressure.
Shall not take repair work wit h water pressure.
(4) Add water to the system to be layered with water, stratified exhaust, drill pilot operation.
(5) Confirm system pipeline wit:tut leakage, finally take thermal insulation processing far pipeline
according to the design plan.
(6) The scheme formulated system pressure should be followed by the principie of low to high
flow, excessive enters step by step. And be sure to follow the above points, other wise you may
cause structural damage to fan coil chillers and system pipeline.
1. lnstallation ends, shall carefully check whether fan motor operation is normal after electrify. lf
any abnormal must immediately find reason after cut off power supply.
2. During the time chiller stop working, the system should be filled with water to reduce pipeline
corrosion; but in winter should take ant freezing measures to avoid heat exchanger copper tube
cracking.
3. Chiller using cold water temperature should be not less than 6 ºC, hot water temperature no
higher than 65 ºC, requires clean water, preferably demineralized water.
4. To achieve the best heat transfer effect of the chiller, we ad vise you to open the exhaust valve
on the system pipeline when your first time uses, in arder to remove the air inside the pipe.
5. Air filter should be cleaned regularly according to the using environment clean leve 1, so as not
to affect the heat transfer performance and ventilation.
6. After two years operation, you should take a comprehensive maintenance far the whole system
of the chiller. You can clean pipes and heat exchanger to remove dirt with chemical methods.
Our factory can provide professional services.
Note
lf the unit have sorne damage by water hammer problem in the condition of project installation,
debugging and using,our companywon't take charge of it.
User and Maintenance