Hitachi SPX-WDC3 Installation & Operation Manual page 4

B-2. Operating Instruction for the DRY CONTACT for RAK-18/25/35PSA
Preparation for Dry contact function correspodence.
Dry Contact function is "Enable" by cutting JP1.
Select a proper setting for dry contact input logic
depending on the contact type as shown below.
Select Contact type a or Contact type b by cutting
JP2.
[Notes]
Take care, to ensure the cut JP connector cannot come in contact with other
local components.
☆ For JP1, Dry contact function will be selected when it is "cut" in the Dry
contact function selection.
☆ For the selection of Contact a or Contact b, cut JP2 according to the Dry
contact setting.
CN6
AIR CONDITIONER
Standby
CARD
REMOVE
KEY
(DOOR
SWITCH)
contact
type
OPEN
a
contact
type
CLOSE
b
– 4 –
Main PWB
Contact type a
JP1
JP2 Connected
AIR CONDITIONER
Operating
INSERT
CLOSE
OPEN
Jumper wire
JP1 JP2
Contact type b
Cut Cut
Cut