Service Functions; The Position Of Switch; Locking The Operation Mode Of The Air Conditioner; How To Lock The Operation Mode - Mitsubishi Electric MXZ-2D33VA-E1 Service Manual

10

SERVICE FUNCTIONS

MXZ-2D33VA MXZ-2D40VA MXZ-2D42VA MXZ-2D53VA MXZ-2D53VAH
MXZ-3D54VA MXZ-3D54VA2 MXZ-3D68VA MXZ-4D72VA MXZ-4D83VA
MXZ-6D122VA

10-1. THE POSITION OF SWITCH

MXZ-2D33VA MXZ-2D40VA MXZ-2D42VA MXZ-2D53VA MXZ-2D53VAH
SW1
ON
Outdoor display P.C. board
MXZ-3D54/3D68/4D72VA
MXZ-3D54VA2
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 power supply and make sure that the LED goes off.
(2) Set SW1 or SW2 as shown in the figure below.
(3) Turn ON the power supply.
MXZ-2D33VA/2D40VA/2D42VA/2D53VA/2D53VAH
SW1 on the outdoor display P.C. board
MXZ-4D83VA/5D102VA
SW1 on the outdoor control P.C. board
Cool/Dry
SW1
ON
MXZ-6D122VA
SW1 on the outdoor control P.C. board
Cool/Dry
SW1
ON
OBH626H
SW2
ON
1 2 3 4 5 6
MXZ-4D83/5D102VA
SW1
ON
SW2
ON
1 2 3 4 5 6
SW871
Oudoor control P.C. board
Heat
SW1
ON
Heat
SW1
ON
5 6 5 6
MXZ-6D122VA
Outdoor control P.C. board
MXZ-3D54VA/3D54VA2/3D68VA/4D72VA
SW2 on the outdoor control P.C. board
Cool/Dry
SW2
ON
116
MXZ-5D102VA
LED
SW1
Heat
SW2
ON
5 6 5 6