Delta HCH1850, User Manual

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32
InfraSuite RowCool Precision Cooling –
Chilled Water
The program adopts a compensation method and adjusts the flow rate with the first (most
remote) cooling unit as a reference point. The process needs at least three people to work at
the same time. It is suggested keeping communication by handheld walkie talkie. The number
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See the following procedures.
1
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of the circuit.
2
Use the control panel to set all cooling units in the installation mode, (see 4.3 Operating
Temperature and Humidity ) and the three-way ball valves will automatically fully open
(100%).
3
Fully open the balance valve of the return water end and the branch balance valves at
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4
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the balance valve cannot reach this value when fully opened, keep it at full opening, and
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5
Fully open the branch balance valve of Unit 1, adjust the balance valve of the return
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Make sure once again its branch balance valve is kept fully open.
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7
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person will observe the flow rate change of Unit 1, dynamically adjust the branch
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8
Repeat the procedures
6
~
7
to adjust Units 4~6 and record the opening of the
branch balance valves.
9
When all units are adjusted, record the opening of the balance valve of the return water
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