– 4 –
B-1. Operating Instruction for the DRY CONTACT
Table 1
Note :
OPEN
CLOSE
a
b
REMOVE
ON
1
2 3 4 5
6
ON
1
2 3 4 5
6
ON
1
2 3 4 5
6
No.2 : ON
No.3 : OFF
No.2 : ON
No.3 : ON
No.2 : OFF
No.3 : OFF
INITIAL CONDITION (CARD KEY NO USE)
SW501 SET CONDITION
AIR CONDITIONER
Operating
AIR CONDITIONER
Standby
Pin No.
1
2
3
Switch Position / Setting
ON
OFF
DIP SWITCH (SW501) setting which related to DRY CONTACT function.
1) AUTO RESTART function set to "Enable" is needed (set pin#1 on the DIP SWITCH SW501 above to OFF
position).
2) DRY CONTACT function is "Enable" by set pin#2 of the DIP SWITCH SW501 to ON position.
3) Select the proper setting for DRY CONTACT LOGIC INPUT pin#3 on SW501.
i) Set to OFF position (Hi Input) if the type of Dry Contact switch to be used (for the CARD KEY UNIT or
Window) is of contact type a (Normally Open Type) as shown in below diagram.
ii) Set to ON position (Lo Input) if the type of Dry contact switch to be used (for the CARD KEY UNIT or
Window) is of contact type b (Normally Close Type) as shown in below diagram.
࠙
i
ࠚ
CHECK DRY CONTACT OF CARD KEY UNIT
࠙
iii
ࠚ
SET SWITCH (SW501)
After all connection has been done as below diagram, turn
ON
the breaker and push
ON
button of wireless remote
controller or wired remote controller to operate the air conditioner unit.
Ŷ
When the CARD KEY is in insert condition, the air conditioner operation is allowable by remote controller.
Ŷ
When the dry contact switch on the Card Key Unit is open (refer to diagram below for contact type a), the unit stops to
operate (it takes 10 seconds to stop the unit operation after the dry contact switch on the card key turns off) and vice versa.
Ŷ
When the card key is removed from the Card Key Unit, the wireless remote controller can not be used.
Ŷ
When the card key is removed from the Card Key Unit, the wired remote controller LCD display is activated; however it has
no control over the unit.
Ŷ
The suitable accessory Card-key Connecting Cord (accessory code#: SPX-WDC3) need to be used to connect the Card
Key Unit’s dry contact switch to the connector on the control board of the indoor unit. Please contact your Hitachi sales
representative to select suitable accessory code# for the concerning indoor model.
CLOSE
INSERT
OPEN
CARD
KEY
(DOOR
SWITCH)
contact
type
contact
type
Function
AUTO RESTART Function
OFF Enable
ON Disable
DRY CONTACT Function
DRY CONTACT Input Logic
OFF
OFF
Disable
Hi Input
ON
ON
Enable
Lo Input
