Address Setting - Toshiba Carrier MMY-MAP0726HT6P-UL Installation Manual

9

Address setting

CAUTION
• Complete all electric wiring before setting the addresses.
• To set the addresses correctly, the indoor units must be energize before the outdoor units are energized. Failure
to follow this procedure will result in an "E19" check code being displayed on the outdoor unit control board.
• It normally takes 5 minutes to automatically address one refrigerant line, however this process could take as
long as 10 minutes.
• Simply energizing the system components does not initiate the address process.
• It is not required to run the unit during the address process.
• The address process can be done automatically or manually.
WARNING
• Electrical shock hazard - the electrical control
box contains high voltage parts. All
adjustments for address setting should be
made through the access cover.
Do not remove the electrical control box
cover.
• After completing the address setting the
access cover should be closed and secured
using the screw provided.
■ Automatic address setting
Without central control
or with central control of 1 refrigerant lines (Example 1) :
With central control of 2 refrigerant lines (Example 2) :
Example 1
When a single refrigerant line is centrally
controlled
Address setting
See procedure 1
procedure
Outdoor Central Outdoor
control
Control wiring
Indoor Indoor
diagram
Remote Remote Remote
control control
35-EN
Access Electrical control
cover box cover
use Address setting procedure 1
use Address setting procedure 2
Example 2
When 2 or more refrigerant lines are centrally
controlled
See procedure 2
Central Outdoor Outdoor
control
Indoor Indoor Indoor Indoor Indoor
Remote Remote Remote
control control control control
◆ Address setting procedure 1
1
Energize indoor units fi rst, and then energize outdoor units.
2
About one minute after energizing the outdoor units, confi rm that the 7-segment display on the
interface P.C. board of the header outdoor unit indicates
3
Press SW 15 to start the automatic address setting.
It normally takes 5 minutes, but may takes as long as 10 minutes to complete the auto address setting for 1
refrigerant line.
4
The 7 segment display will indicate
When the address sequence has covered all the fan coils for a refrigerant line auto - the 7
segment display will indicate
When the fl ashing stops and the display indicates
complete.
Interface P.C. board on the header outdoor unit
Access
SW04 SW05 SW15
cover screw
D600 D601 D602 D603 D604
SW02
SW01
REQUIREMENT
• When 2 or more refrigerant lines are controlled as a group (using, 1 remote control), be sure to turn on all the
indoor units in the group before setting the addresses.
• If the unit address of each refrigerant line is set separately, then the header unit for each line will be set
separately. In this case the remote control will display CODE No. "L03" indicating "indoor header unit overlap"
when the system starts running. When this happens the group address must be changed to make only one unit
the header unit. This operation is done using the wired remote control.
(Example)
System wiring
Central
diagram
control
Indoor
– 18 –
U. 1. L08
Auto 1 → Auto 2 → Auto 3
U. 1. fl ashing.
U. 1.
without fl ashing, the address setting is
3
2,4
SW03
Controlling 2 or more refrigerant lines as a group
Outdoor Outdoor
Indoor Indoor Indoor Indoor
(Group control)
Remote
control
. The U.1. will B6 fl ashing.
.
EN
FR
36-EN