Mitsubishi Electric CAHV-R450YA-HPB Installation & Operation Manual page 36

(5) Setting the total number of units for a multiple system
Step 0
Set the ON/OFF
switch (SWS1) to
OFF.
Step 1
Set the dip switches
SW5 and SW6.
Step 2
Select the desired
item with the push
switch SWP3.
Step 3
Press the push
switches SWP1 (↑)
or SWP2 (↓) to
increase or
decrease the value.
Step 4
Press the push
switch SWP3 to
save the change.
Step 5
Turn the power back
on.
Reset the system.
Setting the unit addresses
Refer to
"System configuration procedures: Multiple system" (page 23)
Set SWS1 to OFF from the remote controller or with the local switch.
Settings cannot be changed unless the ON/OFF switch is set to OFF.
Set the dip switches on the circuit board as follows to select how external inputs are received.
SW5
10 5 6 7
OFF OFF OFF OFF
The item codes shown in the table below will appear in order every time the push switch
SWP3 is pressed.
Use the push switches SWP1 and SWP2 to change the value of the selected item.
The value will keep blinking while it is being changed.
Setting the total number of units
Total number of units in the system*1
*1 Enter the total number of units including the main unit. Applicable only to the main unit.
Press SWP3 once within one minute of changing the setting with SWP1 or SWP2 to save the
setting.
Once the new setting is saved, the display will stop blinking and stay lit. The display will, then,
return to the item code display mode.
If SWP3 is not pressed within one minute, the change will not be saved and the display will
return to the item code display mode.
After changing the settings, re-initialize the system according to the procedures detailed on
page 27.
Note The new setting will not be saved unless a reset is performed.
SW6
8 9 10
ON ON ON
Item code Increments
107 1
.
36
Lower limit Upper limit
1 16
Initial value
1