Test Running - Hitachi HRNM Serie Installations- Und Betriebshandbuch

INSTALLATION OF REMOTE CONTROLLER
34
16. INSTALLATION OF REMOTE CONTROLLER
16.1. INSTALLATION OF REMOTE CONTROL SWITCH <PC-P2HTE>

17. TEST RUNNING

When installation is completed, perform test run according to the following procedure, and hand over the system to the
customer. Perform test run regarding indoor units one by one in order, and confirm that the electrical wiring and the refrigerant
piping are correctly connected.
Test run should be performed according to the Test Run Procedure on next page.
WARNING:
Do not operate the system until all the check points have
been cleared:
Check to ensure that the electrical resistance
-
is more than 1 M , by measuring the
resistance between ground and the terminal
of the electrical parts. If not, do not operate
the system until the electrical leakage is
found and repaired. Do not impress the
voltage on the terminals for transmission 1
and 2.
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 oil
heater.
Pay attention to the following items while the system is
running:
Do not touch any of the parts by hand at the
-
discharge gas side, since the compressor
chamber and the pipes at the discharge side
are heated higher than 90°C.
DO NOT PUSH THE BUTTON OF THE
-
MAGNETIC SWITCH(ES), it will cause a
serious accident.
Do not touch any electrical components for more than three
minutes after turning OFF the main switch
All data related to Installation about Remote Control Switch for PC-P2HTE are in the
specific Installation Manual. Please refer to Installation Manual PMML0120 A.
Confirm that the gas line stop valve and the liquid line stop
valve are fully open.
Confirm that the leakage of the refrigerant does not exist.
The flare nuts are sometimes loosened by vibration during
transportation.
Check that the refrigerant piping and the electrical wiring
conform to the same system.
Confirm that the dip switch setting on the printed circuit
board of the indoor units and the outdoor units are correct.
Check whether or not the electrical wiring of the indoor units
and the outdoor units are connected as shown in the chapter
ELECTRICAL WIRING.
CAUTION:
Confirm that field-supplied electrical components
(main switch fuse, fuse-free breaker, earthleakage
breakers, wires, conduit connectors and wire
terminals) have been properly selected according to
the electrical data given in the Technical Catalog of
the unit and ensure that the components comply with
national and local codes.
NOTE:
For more reference check Troubleshooting chapter
on Operation Part.
ATENTION:
HRNM series, does not operate within 4 hours after
power supply stoppage cause (d1-22).
In case of operating within 4 hours, push PSW1 and
PSW3 on PCB simultaneously more than 3 seconds.