Service Functions - Toshiba MXZ-2DM40VA Service Manual

10

SERVICE FUNCTIONS

MXZ-2DM40VA MXZ-3DM50VA
10-1. THE POSITION OF SWITCH
MXZ-2DM40VA
SW1
ON
Outdoor display P.C. board
MXZ-3DM50VA
Oudoor control P.C. board
10-2. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT)
With this function, you can lock the operation mode of the outdoor unit.
Once the operation mode is locked to either COOL/DRY mode or HEAT mode, the air conditioner operates in that mode
only.
Default setting is required to activate this function.
Please explain this function to your customers and ask them whether they want to use it.
[How to lock the operation mode]
(1) Turn OFF the breaker and make sure that the LED goes off.
(2) Set SW1 or SW2 as shown in the figure below.
(3) Turn ON the breaker.
MXZ-2DM40VA
SW1 on the outdoor display P.C. board
Cool/Dry
SW1
ON
OBH739A
SW2
ON
1 2 3 4 5 6
SW2
ON
1 2 3 4 5 6
SW871
Heat
SW1
ON
MXZ-3DM50VA
SW2 on the outdoor control P.C. board
Cool/Dry
SW2
ON
20
Heat
SW2
ON
5 6 5 6