York TIWM006B21S Installation And Maintenance Manual page 41

(6) Fuse Recovery (DSW7)
(This DIP switch is located at PCB1.)
Factory Setting
(7) Optional Function Setting (DSW2)
No setting is required. Setting positions before shipment are all
in the OFF position.
Setting for "Identifying Indoor Units Installed Side by Side,"
set No.3 pin (DSW2) to ON whenever a wireless controller is
used.
(When the setting is not required, leave No.3 pin for the DSW2
"OFF" .)
For the function "Identifying Indoor Units Installed Side by
Side", the wireless controller should be set to "B mode". (Refer
to the "Installation and Maintenance Manual" for the wireless
controller for "B mode" setting.)
NOTE:
When using the receiver kit, setting DSW2 on the PCB for the indoor unit is not required. Set the
function "Identifying Indoor Units Installed Side by Side" with the receiver kit instead. For details on
this setting, refer to the "Installation Manual" for the receiver kit.
(8) Wired Controller Setting (SW2)
When using the wired controller and receiver kit:
The initial setting prior to shipment is "Wireless". Set SW2 to "Wired". This operation cannot be
performed without this adjustment. Connect the controller cables to terminals A and B at terminal
block TB2.
NOTES:
● The solid square "■" symbol signifies the "ON" and "OFF" positions for DIP switches. The diagrams
show original settings before shipment.
● When the unit number and the refrigerant cycle are set, record the unit number and refrigerant cycle
to facilitate maintenance and servicing activities afterward.
● SW1 Setting
SW1 for transmission is set to "
default as shown at right and no setting is required. If it is set
to " ", alarm 03 will activate.
● DSW9 Setting
This DIP switch is not used. (No setting is required.)
All indoor and outdoor units must be shut down prior to attempting to make DIP Switch adjustments.
Otherwise, the settings do not take effect.
P5417052
ON When introducing high voltage to terminals 1 and 2 of
TB2, the (0.5A) fuse on the PCB is cut. In such a case,
first, reconnect the wiring correctly to TB2, and then
1 2
adjust the No.1 pin to ON.
OFF
" (Non-polar Setting) by
NOTICE
ON
1 2 3 4
OFF
DSW2
ON
OFF
1 2 3 4
Set No. 3 pin for the DSW2 to "ON" side.
It is set "OFF" before shipment.
SW1
ON
1 2
37