Carrier MMY-MAP0724FT9UL Service Manual page 88

NOREQUIREMENTE
• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the
group before setting addresses.
• If you set the unit addresses of each line separately, each line's header indoor unit is set separately. In that
case, the CODE No. "L03" (Indoor header unit overlap) is indicated as running starts. Change the group
address to make one unit the header unit using wired remote controller.
(Example)
System wiring
diagram
Address setting procedure 2
1
Set a system address for each system using SW 13 and 14 on the interface P.C. board on
the header outdoor unit of each system.
(Factory default: Address 1)
NOTE
Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant
line) or DI/SDI series.
Interface P.C. board on the header outdoor unit
Line address switches on the outdoor interface PC board (
Line
address
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Controlling 2 or more refrigerant lines as a group
Outdoor
Indoor Indoor
(Group control)
Remote
controller
SW06 SW07
1 2 3 4 1 2 3 4
SW11 SW12
1 2 3 4 1 2 3 4
SW13 SW14
2 3 4 1 2
× × ×
× ×
O
× ×
O
×
O O
× × ×
×
×
O
× ×
O
×
O O
× × ×
× ×
O
×
×
O
×
O O
× × ×
× ×
O
Not used for setup of line address (do not change setup.)
Outdoor
Indoor
Indoor
SW09 SW10
1 2 3 4 1 2 3 4
SW13 SW14
1 2 3 4 1 2 3 4
: switch on,
O
Line
address
3 4
× ×
15
× ×
16
× ×
17
× ×
18
×
19
O
×
20
O
×
21
O
×
22
O
×
23
O
×
24
O
×
25
O
×
26
O
27
O O
28
O O
– 88 –
×
: switch off)
SW13
1 2 3 4 1
×
×
×
O
×
O
O O
×
O
O
O
×
O
O O
×
O
O O
×
O
O O
×
O
O O
SW14
2 3 4
O O O
O O O
× × ×
× × ×
× ×
O
× ×
O
× ×
O
× ×
O
×
O O
×
O O
× ×
O
× ×
O
×
O O
×
O O