Johnson Controls YVAHP072B31S, Service Manual

Page: 334 / 1796

1-318
Service Manual
INSTALLATION
NOTICE
NOTE:
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function “Identifying Indoor Units Installed Side by Side” with the receiver kit instead. For details on
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Ɣ DSW9 Setting
This DIP switch is not used. (No setting is required.)
(6) Fuse Recovery (DSW7)
(This DIP switch is located at PCB1.)
* Factory Setting * When introducing high voltage to terminals 1 and 2 of
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adjust the No.1 pin to ON.
1 2
ON
OFF
(7) Optional Function Setting (DSW2)
No setting is required. Setting positions before shipment are all
in the OFF position.
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set No.3 pin (DSW2) to ON whenever a wireless controller is
used.
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“OFF” .)
For the function “Identifying Indoor Units Installed Side by
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to the “Installation and Maintenance Manual” for the wireless
controller for “B mode” setting.)
1 2 3 4
ON
OFF
1 2 3 4
ON
DSW2
Set No. 3 pin for the DSW2 to "ON" side.
It is set "OFF" before shipment.
OFF
(8) Wired Controller Setting (SW2)
* When using the wired controller and receiver kit:
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performed without this adjustment. Connect the controller cables to terminals A and B at terminal
block TB2.
NOTES:
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settings before shipment.
Ɣ :KHQWKHXQLWQXPEHUDQGWKHUHIULJHUDQWF\FOHDUHVHWUHFRUGWKHXQLWQXPEHUDQGUHIULJHUDQWF\FOH
to facilitate maintenance and servicing activities afterward.
ON
1 2
All indoor and outdoor units must be shut down prior to attempting to make DIP Switch adjustments.
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Ɣ SW1 Setting
SW1 for transmission is set to “ ” (Non-polar Setting) by
default as shown at right and no setting is required. If it is set
to “
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SW1