Test Run By Wired Controller - Hitachi Set Free mini-HNRQ1 Series Installation & Maintenance Manual

7.3 Test Run by Wired Controller

This test run method is for the wired controller (Model: PC-ARF1). As for other remote controllers, refer to Installation
and Maintenance Manual attached to each wired controller
(1) Check to ensure that stop valves for gas and liquid of the outdoor unit are fully opened.
(In the case of combined outdoor units, check to ensure that all stop valves of the outdoor units are fully
opened.)
(2) Perform the test run of indoor units one by one sequentially, and then check the accordance of the refrigerant
piping system and the electrical wiring system. (If the multiple indoor units are operated simultaneously, the
system accordance cannot be inspected.)
(3) Perform the test run according to the following procedure. Ensure that the unit operates without any problem.
NOTE:
In the case that 2 wired controllers (main and sub) are installed to the system, perform the test run from the
main wired controller.
< For PC-ARF1 >
(a) Press and hold "Menu" and "Back/Help" simultaneously for at least 3 seconds. The test run menu
will be displayed.
(b) Select "Test Run" by pressing "▲▼ " and press "OK".
The test run screen will be displayed.
• The total number of indoor units connected is indicated on the LCD (Liquid crystal display). The twin
combination (one (1) set with two (2) indoor units) is indicated as "2 units", and the triple combination (one
(1) set with three (3) indoor units) is indicated as "3 units".
NOTE:
When "00 unit" is indicated, the auto-address function may be performing. Cancel "Test Run" mode and set
it again.
• If the indicated number is not equal to the actual number of connected indoor units, the auto address
function is not performed correctly due to incorrect wiring, the electric noise, etc.
Turn OFF the power supply, and correct the wiring after checking the following points (Do not repeat turning
ON and OFF within 10 seconds.)
* The power supply for the indoor unit is NOT turned ON or the incorrect wiring.
* Loose Connection between Indoor Units or Wired Controller
* Incorrect Setting of Indoor Unit Address (The indoor unit address is overlapped.)
(c) Start Test Run.
• Press " On/Off". The test run operation will start. The operation mode, the air flow volume, the air flow
direction and the test run time can be set on the test run screen. Select the item by pressing "▲▼" and set
the detail by pressing "◄►".
The default setting of the test run time is 2-hour OFF timer.
• Check the temperature conditions.
The unit operation cannot be performed if the conditions are out of range.
Refer to the table below for working range.
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