Mitsubishi Electric MXZ-2F33VF4-E1 Service Manual page 178

11-6. CHANGING THE SET REFRIGERANT EVAPORATING TEMPERATURE
NOTE: If you lower the refrigerant evaporating temperature with the windows open, it may cause dew drop.
[How to change the refrigerant evaporating temperature]
(1) Make sure there is no possibility of causing dew drop before making the setting.
(2) Make the setting referring to the table below.
SW2 on the outdoor control P.C. board
SW2
11-7. CHANGING THE AMPERE LIMIT
<MXZ-2F53VFHZ/MXZ-2F53VFHZ2/4F83VFHZ/4F83VFHZ2/MXZ-6F120VF2/MXZ-6F122VF>
With this function, the amount of current that flows in the outdoor unit can be changed.
NOTE: Use this function only when the amount of current exceeds the allowed value.
[How to change the ampere limit]
(1) Be sure to turn off the power supply for the air conditioner before making the setting.
(2) Make the setting referring to the table below.
(3) Turn ON the power supply.
SW2 on the outdoor control P.C. board
SW2
MXZ-3F54/3F68/4F72/4F80VF4
11-8. SETTING WHEN THE PIPING LENGTH IS LONG
For a system that connects all rooms and has a total piping length of 40 m or more, change the setting to improve the circula-
tion of the refrigerant.
[How to perform the setting]
(1) Be sure to turn off the main power of the air conditioner before performing the setting.
(2) To enable this function, set SW1 "6" on the outdoor controller board to ON.
(3) Turn on the main power of the air conditioner.
OBH790L
MXZ-3F54VF2/VF3/VF4
MXZ-3F54VF
MXZ-3F68VF2/VF3/VF4
MXZ-3F68VF
MXZ-4F72VF2/VF3/VF4
MXZ-4F72VF
MXZ-4F80VF2/VF3/VF4
7 ºC or 9 ºC
Normal control
MXZ-2F53VFHZ
MXZ-2F53VFHZ2
13.6 A
(Factory setting)
18.4 A
MXZ-4F83VF/VF2
MXZ-5F102VF/VF2
MXZ-6F120VF2
MXZ-6F122VF
MXZ-2F53VFHZ/VFHZ2
MXZ-4F83VFHZ/VFHZ2
6 ºC
MXZ-4F83VFHZ
MXZ-4F83VFHZ2
21 A
Full
(Factory setting)
178
MXZ-6F120VF2
MXZ-6F122VF
20 A
Full
(Factory setting)
When the piping length is long