Additional Function Via Dip-Switch Settings; Auto Restart Function; Heating/Cooling Only Mode Selection - Hitachi RAC-18WPB Technical Catalogue

9.9. ADDITIONAL FUNCTION VIA DIP-SWITCH SETTINGS

A new DIP Switch is available on the PWBs of the indoor unit that provide additional functions via the settings on the switches.
ON
OFF
Pin No.
1
2
3
4
5
6
NOTE:
1 The setting of pin no. 6 is disabled for this model. Please refer to 9.5 SETTING THE PREVENTION OF MUTUAL
INTERFERENCE.
9.9.1.

AUTO RESTART FUNCTION

The AUTO RESTART function can be enabled or disabled by setting Pin No. 1 on the DIP SWITCH above to the ON or OFF
position accordingly.
9.9.2.

HEATING/COOLING ONLY MODE SELECTION

When this function is enabled, the operation mode could be locked to either Heating Only (Heating or Fan) or Cooling Only
(Cooling, Fan or Dehumidifying) by setting the Pin No. 4 and 5 accordingly.
LOCKED MODE
HEATING ONLY Unit will not enter into Cooling mode although cooling mode is selected using the remote controller.
COOLING ONLY Unit will not enter into Heating mode although heating mode is selected using the remote controller.
↕
DIP SW Label
Function
AUTO RESTART function
DRY CONTACT function
DRY CONTACT Logic Select
HEATING / COOLING ONLY
MODE SELECT
REMOCON ID SELECT 1
Air conditioner Indoor PWB
Switch Position / Setting
OFF Enable ON Disable
OFF Disable ON Enable
HI Input LO Input
OFF ON
Active Active
NORMAL
OFF OFF
(HEAT HEATING
AND ONLY
OFF ON
COOL)
SELECT SELECT ID
OFF ON
ID A B
REMARKS
CONTROL AND FUNCTION
ON
COOLING ONLY
OFF
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