Operation Mode Selection Control; Indoor Unit Operation Intervention Function; Sw1: Cool Mode Selection Switch; Sw2: Heat Mode Selection Switch - Toshiba MMY-MAP0806HT8P Service Manual

6-2-9. Operation Mode Selection Control

Header 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 the header outdoor unit.
Jumper lead
Unallowed indoor units in a mode other than the selected operation mode
are not treated as priority (thermostat OFF state).
(Unallowed indoor units)
Operation
Mode
J01 connected
(factory
Cooling
default)
Heating
Fan
Indoor units in a mode other than the selected operation mode are forcibly
switched to the selected operation mode.
PC board
selection
mode
J01 cut
Normal
Cool
Heat
The optional P.C. board should be connected to the header outdoor unit (U1).
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
Details of Processing
Operation State
Air blow operation at fan speed
set on remote control
Air blow operation at ultra-low
fan speed
Regular air blow operation at fan
speed set on remote control
Remote control operation/display
, , , or can be selected When using the remote
Only , , or can be
selected
Only or can be selected
Locally procured
Optional PCB
TB1
COM
P J 1 7 COOL
HEAT
Shield
wire
Remarks
*
*
Remote control
, indicator is
displayed.
control, (mode
select control)
indicator is displayed.
− 102 −
SW1
SW2