Hitachi YUTAKI S Series Installation And Operation Manual

61
PMEN0643 rev.0 - 04/2023
8
TESTRUN/AIRPURGE
COMMISSIONING
! CAUTION
It is recommended start the unit (rst power ON) with heater forced OFF and compressor forced
OFF (See “6.3 Seng of DIP switches and RSW switches”). In order to circulate water by water
pump and remove possible air into the heater (Check heater completely lled).
8.4 Test run / air purge
Test run is a working mode used when commissioning the installaon. Some sengs are made to
let the installer an easy job. Air purge funcon drives the pump in a way for evacuang air bubbles
in the installaon.
Example for PC-ARFH2E
This menu shows the following test to be launched:
• Unit Test Run
• Air Purge
• Screed Drying
• Pump down procedure
Aer “Test Run”, “Air Purge” or “Pump down procedure” opon is selected, the YUTAKI user
controller asks for the duraon of the test.

Hitachi YUTAKI S Series Specifications

General

Type	Air-to-Water Heat Pump
Refrigerant	R410A
Cooling Capacity	2.5 - 16 kW
Operating Temperature Range (Cooling)	46°C
Indoor Unit Dimensions	Varies by model
Outdoor Unit Dimensions	Varies by model
Noise Level	Varies by model