ESIE98–06A Pre-Test Run Checks
Part 4 – Commissioning and Test Run 4–5
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1.3 Water Piping Checks
Checklist A checklist of water piping checks is given below:
Water volume, flow
and pressure
To assure proper operation of the unit, the water volume and flow must be within the operation range
as specified in the following table:
(1)
: a is the steplength. Refer to ‘Thermostat Control’ on page 2-11.
The water pressure should not exceed the maximum working pressure of 10 bar.
Check if …
1 the water volume is within the limits.
2 there is adequate water flow.
3 the water quality meets the standards.
4 the water piping is properly insulated.
5 measurement points for temperature and pressure are available on the water circuit.
6 the flow switch and pump are properly working.
7 air purge points are installed on the high parts of the water piping.
8 drain taps are installed at the low points of the water piping.
9 other parts of the water circuit are properly mounted and installed (e.g. buffer tank, expan-
sion tank,...)
10 vibration compensators are mounted at the water connections when the unit is positioned on
anti-vibration pads.
Chiller type Minimum water volume Minimum water flow Maximum water flow
EUWA/Y5HB
343 /a l
(1)
17 l/min 75 l/min
EUWA/Y8HB 514 /a l 30 l/min 120 l/min
EUWA/Y10HB 729 /a l 40 l/min 145 l/min
EUWA/Y15HC 730 /a l 60 l/min 220 l/min
EUWA/Y20HC 730 /a l 80 l/min 290 l/min
EUWA/Y25HC 1050 /a l 100 l/min 370 l/min
EUWA/Y30HC 1450 /a l 120 l/min 440 l/min
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