Check Before Test Run; Cabinet; Refrigerant System - Hitachi RCUE40AG2 Service Manual

Test run

CAUTION:
Do not use domestic
detergent as a
forming agent at
refrigerant leakage
check. The followings
are recommended:
− Snove (Nupro,
USA),
− Gupfl ex
(Yokogawa,
Japan)
Gas leakage
detection device is
not compatible with
one for R22. The
sensibility of the
device for R22 is
little, therefore, do not
divert it.
pag. 20

2.1. Check before test run

Confi rm there is no problem regarding chiller installation space and requirements. See
technical catalogue for more details.
Check the following items at the beginning of the season and before fi rst test run.

2.1.1. Cabinet

Exterior and

interior
Drain pan

Air side heat

exchanger
Fan part


2.1.2. Refrigerant System

System in

general
Compressor

Fuse plug

Stop valve

for liquid
refrigerant
SMGB0003 rev.0-01/2007
Confi rm there is no damage in exterior and interior
−
caused during transportation or at installation.
Remove foreign matters and dust and clean it.
−
Confi rm individually if screw and washer are fi xed well
−
using screw driver or wrench.
Confi rm visually if heat insulation, tape and label plates
−
are fi xed well.
Confi rm visually if there is no clogging nor rust in drain. In
−
case of the rust, arrange it painting.
Check visually if there is no dust between fi ns. In case of
−
dust, wash the part with fi n cleaner.
Confi rm there is no deformation nor any trouble in fan or
−
fan protection net.
Confi rm if fan spins smoothly.
−
Confi rm if screws are not loosed. (especially check if
−
shaft and runner are fi xed)
Confi rm if there is no strange noise during the revolution.
−
Confi rm individually if screws are fi xed well using
−
screwdriver or wrench.
Confi rm if there is no gas leakage using foaming agent or
−
leak tester especially in fl anges, screws, and fl are parts.
Confi rm visually if there is no oil leakage from suction
−
and discharge fl ange.
Confi rm visually if fuse plug is not infl ated abnormally.
−
Confi rm if the stop valve for refrigerant in outlet of air side
−
heat exchanger is fully opened.