Setting The Switches - Mitsubishi Electric MAC-399IF-E Installation Manual

M-net interface
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4. Setting the Switches

If the system is not configured correctly, the unit will not function properly. You may be unable to control the functions of the RAC
from the System Controller/ME Remote Controller or functions not available on your RAC could appear on the System Controller/
ME Remote Controller display. You should therefore ensure that the system is properly configured before connecting the power
supply.
I SW500 No. 1, No. 2 - Not in use
These should be set to OFF (if set to ON, the device will not communicate properly with the System Controller).
I SW500 No. 3 - Power On/Off Settings
This setting indicates whether the RAC should be turned off or on when power is supplied to the RAC or M-NET Interface.
Turn on with power No
[Unit remains off when the power is supplied.]
Turn on with power Yes
[Unit turns on when the power is supplied.]
I SW500 No. 4 - Availability of RAC purifier or fan mode
If there is no "Purifier" button on the wireless remote control, and if the word "Fan" does not appear when the "Mode" button is
pressed, the purifier and fan modes are not available (set to OFF).
Does not have a purifier or fan mode
Has a purifier or fan mode
I SW500 No. 5–No. 8 - RAC Function Check
SW500
Function description
Availability of automatic op-
eration mode (a mode that al-
No. 5
lows the air conditioner to de-
termine whether to select
cooling or heating).
Availability of a fan oscillation
setting
No. 6
Availability of a fan direction
No. 7
setting
Availability of a heating mode
No. 8
I SW510, SW501 - Address settings
Specifies the address settings for centralized management (address settings can be set from 01–50).
Self-Address
1s position
10s position
How to check a function
If "Auto" is not displayed when you push the "Mode" but-
ton on the wireless remote control, the auto operation
mode is not available (OFF).
If "Oscillate" is displayed when you push the "Fan Direc-
tion" button on the wireless remote control, the fan os-
cillation setting is available (OFF). (If there is no "Fan
Direction" button, the setting is OFF.)
If there is a Fan Direction button on the wireless remote
control, the fan direction setting is available (OFF).
If "Heat" appears when you push the "Mode" button on
the wireless remote control, the unit is a model that of-
fers both cooling and heating (OFF).
SW510 sets the 10s position of the address and SW501 sets the 1s position of the address.
For example, to set a unit to the address 25, set SW510 to "2" and SW501 to "5".
OFF
Does not have an auto
Does have an auto op-
operation mode
eration mode
Has a fan oscillation set-
Does not have a fan os-
ting
cillation setting
Does not have a fan di-
Has a fan direction set-
ting
rection setting
Dual cooling and heating
Cooling unit only
model
ON
5

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