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INSTALLATION AND OPERATION MANUAL
DRY CONTACT FUNCTION (Optional Part)
This product is a connecting cord to connect a Dry Contact Unit to the PCB of the room air conditioner indoor
unit. Beside this sheet, in order to perform an installation job, please refer to Installation Manual for each air
conditioner. Do make sure items listed below are included in the pacakaging box.
<Included Item>
CAUTION :
1. Stop the operation air conditioner,and turn the power breaker off before installation.
2. The output terminal of Dry contact on PCB board must be connected to a volt free contact output (OPEN
CLOSE), which linked to the card's insertion state.
3. The wiring length from the Main PWB to Dry contact shall be within 15m. Do not put the Dry contact wiring
with power cord or other signal wires together. lt may cause malfunction due to electrical noises.
A. Installation Instruction for the "Connecting Cord(SPX-WDC3)".
1. Open the Front Cover and Electrical Cover.
2. Connect the
[Connecting Cord (SPX-WDC3)] to connector CN6 of indoor main PCB.
3. Join the cord from Dry Contact Cord to
provided.
4. Set the dip switch SW501 of indoor main PCB to enable the DRY CONTACT function.
(refer "B. How to operate the DRY CONTACT function")
5. Be careful not to clamp any wire when assemble back the Electrical Cover.
6. Assemble back the Front Cover and do an operation check after Dry Contact has been connected.
Note :
1. For the instruction on RAK-18/25/35PSA, refer to "B-2. Operating Instruction for the DRY CONTACT function for
RAK-18/25/35PSA".
MAIN PWB
CN6
Connecting cord to PCB (SPX-WDC3)
Contact with sleeve
Installation and Operation Manual
[Connecting Cord (SPX-WDC3)] by using the
Wire for this Connecting Cord have no
polarity, any wire joint is acceptable.
CONNECTING CORD
(SPX-WDC3)
Joint the cord from Dry Contact Cord to
by using
[Contact with sleeve].
CONNECTION DIAGRAM
– 2 –
(1 pcs)
(2 pcs)
(1 booklet)
[Contact with sleeve]
CONTACT WITH SLEEVE
DRY CONTACT
CORD
[Connecting Cord (SPX-WDC3)]
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