Mitsubishi Electric PUHZ-SHW80VHA Service Manual page 88

[ O p erating P roc edure]
1 Check the setting items provided by function selection.
If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps 2
to 7 , fill in the "Check" column in Table 1, then change them as necessary. For initial settings, refer to the indoor unit' s installation manual.
2 Switch off the remote controller.
A Hold down the (
FILTER
buttons simultaneously for at least 2 seconds.
then the remote controller' s display content will change as shown below.
Refrigerant address
display section
FUNCTION
If the unit stops after blinked for 2 seconds or "88" blinks in the room temperature display area for 2 seconds, a transmission error may have occurred.
SELECTION
Check to see if there are any sources of noise or interference near the transmission path.
Note : If you have made operational mistakes during this procedure, ex it function selection (see step 0 ), then restart from step 2.
4 Set the indoor unit number.
D Press the button so that "- -" blinks in the unit number display
ON/ OFF
area.
Unit number
display section
To set modes 01 to 06 or 15 to 22, select unit number "00".
To set modes 07 to 14 or 23 to 28, carry out as follows:
To set each indoor unit individually, select " 01" to "04".
To set all the indoor units collectively, select " AL".
5 Confirm the refrigerant address and unit number.
E Press the button to confirm the refrigerant address and unit
MODE
number.
After a while, "- - " will start to blink in the mode number display area.
Mode number
display section
"88" will blink in the room temperature display area if the selected refrigerant
address does not ex ist in the system.
Furthermore, if "F" appears and blinks in the unit number display area and the
refrigerant address display area also blinks, there are no units that corre-
spond to the selected unit number. In this case, the refrigerant address and unit
number may be incorrect, so repeat steps 2 and 3 to set the correct ones.
6 Select the mode number.
F Press the [
TEMP] buttons (
number.
(Only the selectable mode numbers can be selected.)
7 Select the setting content for the selected mode.
G Press the
button. The currently selected setting number will
MENU
blink, so check the currently set content.
Setting number display section
8 Register the settings you have made in steps 3 to 7 .
E Press the button. The mode number and setting number will start
MODE
to blink and registration starts.
If " - - - " is displayed for both the mode number and setting number and "
Check to see if there are any sources of noise or interference near the transmission path.
9 If you wish to continue to select other functions, repeat steps 3 to 8 .
0 Complete function selection.
A Hold down the
(
FILTER
simultaneously for at least 2 seconds.
After a while, the function selection screen will disappear and the air condi-
tioner OFF screen will reappear.
Note :
If a function of an indoor unit is changed by function selection after installation is complete, make sure that a " " mark, etc., is given in the "Check" column of Table
1 to indicate the change.
OCH526C
mode is 15 to 28)and B
TEST
FUNCTION
will start to blink,
SELECTION
and ) to set the desired mode
Setting number 1 = Indoor unit operating average
" blinks in the room temperature display area, a transmission error may have occurred.
mode is 15 to 28) and B
buttons
TEST
3 Set the outdoor unit' s refrigerant address.
C Press the [
CLOCK] buttons (
refrigerant address. The refrigerant address changes from "00" to "15".
(This operation is not possible for single refrigerant systems.)
C Press the [
CLOCK] buttons (
of the indoor unit for which you want to perform function selection. The unit
number changes to "00", "01", "02","03",04" and "AL" each time a button is
pressed.
E When the refrigerant address and unit number are confirmed by pressing the
button, the corresponding indoor unit will start fan operation. This
MODE
helps you find the location of the indoor unit for which you want to perform function
selection. However, if "00" or "AL" is selected as the unit number, all the indoor
units corresponding to the specified refrigerant address will start fan operation.
Ex ample: When the refrigerant address is set to 00 and the unit number is 02.
00 refrigerant address
Outdoor unit
Indoor unit Unit number 01
Designate operation Remote controller
When grouping different refrigerant systems, if an indoor unit other than the
one to which the refrigerant address has been set to perform fan operation,
there may be another refrigerant address that is the same as the specified one.
In this case, check the DIP switch of the outdoor unit to see whether such a
refrigerant address ex ists.
Mode number
display section
Mode number 02 = Indoor temperature detection
F Press the [ TEMP] buttons (
number.
Setting number 3 = Remote controller built-in sensor
The mode number and setting number will stop blinking and remain lit, indicating the
end of registration.
Do not operate the remote controller for at least 30 seconds after completing
function selection. (No operations will be accepted even if they are made.)
and ) to select the desired
and ) to select the unit number
Unit number 02
Fan draft
and ) to select the desired setting