Hitachi MULTIZONE RAD-18QPE, Technical Catalogue

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OPTION LIST
10-11
10.3 DRY CONTACT (SPX-WDC2 AND SPX-WDC3) APPLICATION (USING DIP SWITCH)
The dry contact system enables the operation of the air conditioner indoor unit to be controlled by using external dry contacts
(with non voltage) such as card-key controller or window for facilities such as hotels.
Table 1 (Applicable models and related information)
Optional Connecting cord Accessory SPX-WDC# Model DIP SW Label CN#
SPX-
WDC2
RAI-25/35/50/60RPE SW501 CN9
RAD-18QPE
RAD-25/35/50/60RPE
SW501 CN9
SPX-
WDC3
RAK-18QXE
RAK-25/35/50RXE
DSW1 CN6
RAK-15QPE
RAK-18/25/35/42/50RPE
DSW1 CN6
RAK-50RPE1
RAK-60RPE
DSW1 CN6
RAF-25/35/50RXE DSW1 CN6
Note:
1) DRY CONTACT function is "Enable" by set pin No. 2 of the DIP SWITCH (refer to table 1 for the label) to ON position.
2) Select the proper setting for DRY CONTACT LOGIC INPUT pin No. 3 on DIP SWITCH (refer to Table 1 for the label)
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.
ON
↕
OFF
Pin No. Function Switch Position / Setting
2 DRY CONTACT function OFF Disable ON Enable
3 DRY CONTACT Input Logic OFF HI Input Active ON LO Input Active
DIP SW Label
Main PWB side
(CN# terminal)
Dry Contact side
(no polarity)
Connecting cord
SPX-WDC#