Test Run; Before Test Run - Hitachi RCIM-1.0FSN4 Installations- Und Betriebshandbuch

Test run

18 TEST RUN

18.1 BEFORE TEST RUN

Test run should be performed according to this manual and
Installation and Operation Manual of the outdoor unit.
!
D A N G E R
• Do NOT operate the air conditioning to check the electrical
wiring, etc. until the preparation of the test run is completed.
• Do not touch any of the parts at the discharge gas side by hand
while the system is running, since the compressor chamber and
the pipes at the discharge side are heated higher than 90ºC.
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N O T E
• Check to ensure that the stop valves of the outdoor unit are fully
opened, and then start the system.
• Check to ensure that the switch on the main power source has
been ON for more than 12 hours, to warm the compressor oil by the
crankcase heater.
18.2 TEST RUN (PC-ARFPE EXAMPLE)
After installation work, perform a test run.
• Check to ensure that stop valves (for gas and liquid pipes) of
the outdoor unit are fully opened.
• In the case that indoor units are connected to the VRF
system, perform the test run of the indoor unit one by
one sequentially and then check the accordance of the
refrigerant piping system and the electrical wiring system.
(If the multiple indoor units are operated simultaneously, the
system accordance cannot be checked.)
• Perform the test run according to the following procedure.
Check to esure that the unit operates without any problem.
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N O T E
The outdoor unit might not be operated depending on the indoor and
outdoor temperature conditions. Refer to Installation and Operation
Manual of the outdoor unit for details.
39 PMML0363A rev.2 - 08/2016 - P5416559
Recheck that there is not any problems in installation. Do not
perform the test run until all the following checking points have
been cleared:
• Check to ensure that the refrigerant pipe and the transition
wiring are connected to the same refrigerant cycle system.
If they are connected incorrectly, it will cause an abnormal
operation and breakage of instruments.
• Check to ensure that the electrical resistance is more than
1 megohm, by measuring the resistance between ground
and the terminals of the electrical parts. If the electrical
resistance is less than 1 megohm, do not operate the system
until the electrical leakage is found and repaired. Do not
apply the high voltage to the terminals for the transmission
[TB2 (A, B, 1 and 2)].
• Check to ensure that each wire for main power supply is
connected in correct phase. If it is incorrectly connected, the
unit will not operate and the alarm code "05" will be indicated
on the remote control switch. In this case, check the phase
of the primary power source according to the caution label
attached on the back side of the electrical box cover. Then,
reconnect each wire correctly with the power supply turned
OFF.
• Check to ensure that the main power source has been
turned ON for more than 12 hours, to warm the compressor
oil by the crankcase heater of the outdoor unit.
1 Press and hold " " (menu) and " " (return) simultaneously
for at least 3 seconds. The test run menu will be displayed.
Test Run Setting: 2 units
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
SEL. ADJ
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N O T E
If "00 unit" is indicated, the auto-address function might have been
enabled. Cancel "Test Run" mode and set it again.
Test Run Setting: 00 unit
MODE
SPEED
LOUV.
T-RUN TIME 120MIN
SEL. ADJ
COOL
MED
RUN RTN.
COOL
MED
RUN RTN.