Hitachi SPX-WDC7 Installation & Operation Manual page 2

INSTALLATION AND OPERATION MANUAL
MALFUNCTION SIGNAL FUNCTION (Optional Part)
This product is a connecting cord to connect a Malfunction signal (Additional HA-adapter(HA-S100TSA) is
required.) unit to the PWB 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.
Make sure the items listed below are included in the package.
<Included Item>
CAUTION: Stop the operation of air conditioner and turn the power breaker off before installation.
A. Installation Instruction for the "Connecting Cord"(SPX-WDC7)
1. Open the front cover and electrical cover of indoor unit.
2. Connect (1) 11 pin connector to CN6 of indoor main PWB.
3. Join (2) Connecting cord to the HA-ADAPTER(HA-S100TSA: optional part).
4. Join the LED circuit(Local procurement) to "3" & "4" of HA-ADAPTER
5. Make sure not to clamp any wire when reassemble the electrical cover.
6. Reassemble the front cover and do an operation check after malfunction signal has been connected.
(1) 11 pin connector
MAIN PWB
4 YELLOW
3 ORANGE
2 RED
1 BROWN
HA ADAPTER (HA-S100TSA)
*Specification of the LED circuit: (a) Power supply: DC 5V to 24V, (b) Current: 10mA or less
NOTES: When a failure occurs, a malfunction signal is output and LED is turned on.
• Connecting cord to PWB (SPX-WDC7)
• Installation and Operation Manual
HA ADAPTER (HA-S100TSA)
(2) Connectiing cord
SPX-WDC7 CONNECTION DIAGRAM
HA-S100TSA CONNECTION DIAGRAM
– 2 –
(1 pce)
(1 booklet)
LED
This circuit is local procurement