Operation Mode Selection Control - Toshiba MCY-MHP0305HT-C Service Manual

7-3-7. Operation mode selection control

Outdoor unit
Outdoor unit
interface PCB
SW1: Cooling mode specified input switch
SW2: Heating mode specified input switch
NOTE
SW1: COOL mode selection switch
SW2: HEAT mode selection switch
Input signal
COOL (SW1) HEAT (SW2)
ON OFF
OFF ON
OFF OFF
* The display Operation mode selection control in progress)" appears on the remote controller
" (
Indoor unit operation intervention function
The statuses of indoor units operating in a mode different from the selected
operation mode can be changed by changing the status of a jumper wire (J01)
provided on the interface P.C. board of outdoor unit.
Jumper wire
All indoor units operating in a mode different from the selected
operation mode (prohibited-mode indoor units) become non-priority
J01 connected
units (thermostat OFF).
(factory default)
The display "
of prohibited-mode indoor units.
J01 cut The selected operation mode is imposed on all indoor units operating
in a different mode.
Mode selected at
P.C. board
Normal
COOL
HEAT
Connection
Optional PCB
cable
C N 5 1 0 P J 1 7
Operation
Only cooling
operation allowed
Only heating
operation allowed
Normal operation
Description of intervention
(operation ready)" appears on the remote controller
Remote controller operation / display
All modes (COOL,
DRY, HEAT and FAN)
available
Only COOL, DRY
"
and FAN available
control" (turned on
during remote
Only HEAT and FAN
controller operation)
available
37
60
Locally procured
TB1
COM
COOL
SW1
HEAT
SW2
Shield
wire
Remarks
*
*
operation mode