York TIWM006B22S, Installation And Maintenance Manual

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(7) The electrical wiring connection for the indoor unit is shown in Section 8.2.2 and Figure 8.1 below.
(9) Wireless Controller Connection.
For the wireless controller, setting the SW2 is not required.
(The initial setting before shipment is “WIRELESS”.)
NOTE:
For group control (multiple unit control), with single controller, a wired controller or receiver kit is
required.
(The group control is NOT available with the wireless controller, if just the built-in receiver is used.)
Figure 8.1 Recovery from a Blown Fuse
L1 N
(Mp)
Incorrect Wiring
DC5V
A B 1 2
AC 208/230V
ON
OFF
DSW7
Set No.1 Pin
at ON side.
PCB1
1 2
Indoor Unit Indoor Unit
Wireless
Controller
A B
Outdoor Unit
Wireless
Controller
A B
SW2
DIP Switch PCB
Setting is NOT required.
WIRED
WIRELESS
Reconnect wirings correctly.
AC 208/230V
DC5V
A B 1 2 L1 N
(Mp)
(8) If Power Supply Voltage (208V/230V) is introduced into the Communication Line:
If 208V/230V are applied to the communication line at (Terminals 1 and 2 of TB2) by mistake, the fuse
on the PCB for the communication line will blow. In this case, perform the recovery work as shown in
the diagrams below.
(a) Reconnect the wirings correctly.
(b) Set the No.1 pin at DSW7 (on the PCB) to ON.
Upon PCB recovery after the fuse has been replaced, if 208V/230V is reintroduced into the
communication line, the PCB will be seriously damaged and will not recover.