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Hitachi YUTAKI S COMBI Series Installation And Operation Manual

Hitachi YUTAKI S COMBI Series
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65
PMEN0645 rev.0 - 04/2023
8
TESTRUN/AIRPURGE
COMMISSIONING
Example for PC-ARFH2E
In case of test run, user can also select the mode of the test (cooling or heang).
When user conrms the test run or the air purge, the YUTAKI user controller sends the order to the
indoor.
During the execuon of this test, the following screen is shown:
When the test starts, the user controller will exit from the installer mode.
User can cancel the test run regardless of the me le for test nishing.
The Test Run icon is shown in the nocaons zone, but the nocaon of this test run is taken
from H-LINK.
When test run has nished, an informaon message is displayed in the screen, and pressing
accept, the user returns to the global view.
NOTE
When commissioning and installing the unit, it is very important to use the “Air purge” funcon
to remove all the air in the water circuit. When the air purge funcon is running, the water
pump starts the automac air venng roune which consists of regulang the speed and open/
close congured 3-way valve to help to evacuate air from the system.
For Outdoor test run, refer to Outdoor Unit Installaon Manual.
If there is a Heater or a Boiler installed, disable the operaon before running the test run.

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Hitachi YUTAKI S COMBI Series Specifications

General IconGeneral
TypeAir-to-Water Heat Pump
Energy Efficiency Class (Cooling)A++
RefrigerantR32
Operating Temperature Range (Heating)-20°C to 35°C
Energy Efficiency Class (Heating)A+++
Integrated DHW Tank190 liters
Dimensions (Indoor Unit)Varies by model
Dimensions (Outdoor Unit)Varies by model
Weight (Indoor Unit)Varies by model
Weight (Outdoor Unit)Varies by model
Operating Temperature Range (Cooling)+10°C to +46°C

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