FRIULAIR PURESTREAM CWB FC, Руководство пользователя и по обслуживанию

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7425MUM661 Model: CWB FC - Use and Maintenance Manual Rev02
4
PRELIMINARY CHECKS AND START-UP
4.1 P
RELIMINARY CHECKS AND PREPARATION FOR THE FIRST START
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UP
Important! At start-up, it is necessary to give off air from inlet water pipe using
the air relief valve (see paragraph 3.4.1 Recommended water
system ).
Before starting up the unit, do the following:
•
Check that the water shut-off valves are open;
•
Check that the pressure shown on water gauge, is at least 1 bar 7/15 PSI;
•
Check that the surrounding temperature is in the range for the machine to function
(see Chapter 8 Operating Limits );
•
Check that the CWB FC chiller’s main switch is open (O position);
•
Check that the CWB FC chillers’ Local/O/Remote switch on the electrical panel door is
in the “O” position;
•
Check that the mains voltage matches the voltage on the machine's identification plate
with a tolerance of ±10%;
•
Close the main power supply switch;
•
Turn on one pump of the plant (if needed);
•
Close the main switch on the chiller electrical panel (I position).
This puts the machines under voltage without starting it up.
Attention! Apply voltage to the machine at least two hours before start-up to give
the heating elements in the compressor housing time to heat the oil
inside.
The heating elements limit the quantity of refrigerant dissolved in the oil and prevent the oil
from migrating when the compressors start.
Before start-up, check that the temperature of the lower part of the compressors is at least
10÷15°C//18÷28°F higher than the surrounding temperature.
4.2 S
TART
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UP
To proceed to start-up:
•
Put the “Local/O/Remote” switch on “Local” position;
•
Turn the units on by holding down the “ UP ” button on the electronic controller for
five seconds;
Will appear: