Hitachi YUTAKI Series Service Manual page 159

Test run
Service Manual
• Check before start up
- Check that the hydraulic connections are tight.
- Check that water pressure is 1 bar minimum.
- Check that the water flow is constant and that the purge of the circuit is correct.
- Check that the protections and electrical connections are in line with the electrical patterns and this leaflet.
- Turning on the heat pump YUTAKI
- Turning on the electric heater EH 6 1. (If necessary)
- The power relays for heater are controlled by the Yutaki controller.
- S et the temperature for water (on YUTAKI) to a value of 55ºC to ensure the engagement of the resistance, whatever
the temperature outside.
SMGB0066 rev.0 - 12/2009
Checking procedure before the test run
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