Operation Mode Selection Control - Toshiba MCY-MHP0506HT-C Service Manual

7-2-7. Operation mode selection control

Outdoor unit
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
* 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
Outdoor unit
cable
interface PCB
C N 5 1 0
Operation
Only cooling
OFF
operation allowed
Only heating
ON
operation allowed
OFF 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
Only HEAT and FAN
available
Locally procured
Optional PCB
TB1
COM
COOL
P J 1 7
HEAT
Shield
wire
Remarks
*
*
" operation mode
control" (turned on
during remote
controller operation)
42
60
SW1
SW2