How To Adjust Water Flow Rate; Expansion Vessel Pre Pressure Checking - Philips WH-UD16CE5-A-1 Service Manual

15.5

How to Adjust Water Flow Rate


Before adjust the water flow rate, make sure that the total water volume in the installation is 30 litres minimum
(07C3 & 09C3), 50 litres minimum (12C6, 14C6 & 16C6).

The water flow rate can be adjusted with select the water pump speed on the water pump. The default setting is
high speed (III). Adjust it to moderate speed (II) and slow speed (I) if necessary (e.g. reduce the noise of running
water).
Below graph shown the external static pressure (kPa) versus water flow rate (l/min).
(07C3 & 09C3)

Flow rate characteristic of indoor unit is as per above mentioned.
15.6

Expansion Vessel Pre Pressure Checking


Expansion Vessel with 10 L air capacity and initial pressure of 1 bar is installed in this indoor unit.

Total amount of water in system should be below 200 L.
(Note: This amount of water is not include the tank unit volume)

If total amount of water is over 200 L, please add expansion vessel.

Please keep the installation height difference of system water circuit within 7 m.
(Inner volume of same indoor unit is about 5 L)
(12C6, 14C6 & 16C6)
98