Hitachi PC-ARH E Installations- Und Betriebshandbuch Seite 9

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Comunication cable shall be fi eld supplied.
OPTION 1:

Twist pair cable 2 x 0,75 mm
(200m total max. length).
OPTION 2:

Standard shielded cable 2 x 0,75 mm
connecting the shield to earth at the
electrical box side
(200m total max. total length).
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Optional Accessory Cable:
The cables (2x0.75 mm 2 twist wire) of different length are
prepared as an option, which are fi tted with connectors.
Remote Control Cable (Option)
4. CHECKING PROCEDURE
PC-ARH (PC-P5H1E) doesn't have Test Run mode.
The test running shall be performed from the outdoor units.
1. Turn ON the power for all the indoor units.
2. Models with automatic addressing will take three to fi ve minutes to complete the setting.
3 Set the Test Run mode from the outdoor units.
4 Cancellation the Test Run mode
The Test Run mode can be cancelled when:
- The Test Run will be fi nished automatically after two hours of running.
- Cancellation the Test Run from the outdoor units.
- Stop the Test Run by pressing the Run/Stop switch of the PC-ARH (PC-P5H1E).
The total number of the indoor units connected will be indicated on the
temperature display.

E xample when one unit is connected.
In case that the indicated number of connected units is incorrect, any transmission abnormality due to, an incorrect wiring/addressing or noise
may exist. In such a case, turn OFF the power supply and check the following.
(DO NOT repeat the ON/OFF operation of the main switch within 10 seconds).
(1) Indoor units power supply not turn ON, or incorrect wiring
(2) Incorrect wiring connection between indoor units or of remote controllers
(3) Incorrect setting of rotary switch (overlapped setting)

ATTENTION
PC-ARH (PC-P5H1E) memorizes Test Run operation mode. The units will start in the Test Run mode if the mode of operation is not changed
from the central control equipment which will be used with the unit after the Test Run, or from the remote control switch. Change the mode of
operation using these devices or refer to "4. FUNCTION SELECTION" (H3 Operation Mode Change Restriction – 02: Not Restricted) after the
Test Run.
2
2
Checking Procedure
Solder less terminal
(x type 1.25-3X)
Cable Ref. Cable Model
7E790211 PRC-10E1
7E790212 PRC-15E1
7E790213 PRC-20E1
7E790214 PRC-30E1

11
Length (m)
10
15
20
30
NOTE
Display indication when one
indoor unit is connected