Hitachi CH-4.0NE Installations- Und Benutzerhandbuch Seite 21

7.
TEST RUN
Test run should be performed according to "Installation & Operation Manual" of Outdoor unit.
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
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.
- 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.
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 90Cº.
- DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH(ES). It will cause a serious
accident.
15
TEST RUN
Ω
, by measuring the