Address Setting - Toshiba Carrier MMY-MAP0726FT9P-UL Installation Manual

Screw size and tightening torque
Power supply terminal
Ground screw
◆ Precautions when knocking out knockout holes
• After knocking out the hole to the other side, remove the burr, then we recommend you to paint around the edge
with the repair paint to prevent the rusting.
◆ Control wire connection
1. If conduit is required for the control wiring, connect it to the field wiring panel.
2. If conduit is not required, route the control wiring directly through the field wiring panel.
3. Connect all control wiring to the system interconnecting terminal block and connect the shield to the ground
screw.
U1 U2 S U3 U4
TO TO
INDOOR SHIELD CENTRAL
UNIT CONTROLLER
Screw size and tightening torque
control wire terminal
37-EN
Tightening torque
Screw size
ft•lbs (N•m)
M8 4.1 to 4.8 (5.5 to 6.6)
M8 4.1 to 4.8 (5.5 to 6.6)
U5 U6 S
TO
OUTDOOR SHIELD
UNIT
U , U : Control wiring between outdoor units
5 6
U , U : Central control device
3 4
S: Shield wire earth
U , U : Control wiring between Indoor/Outdoor units
1 2
Tightening torque
Screw size
ft•lbs (N•m)
M4 0.6 to 0.7 (0.80 to 0.96)
– 19 –
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) :
When a single refrigerant line is centrally
Address setting
See procedure 1
procedure
Outdoor Central
control
Control wiring
Indoor Indoor
diagram
Remote Remote
control control
Access Electrical control
cover box cover
use Address setting procedure 1
use Address setting procedure 2
Example 1 Example 2
When 2 or more refrigerant lines are centrally
controlled controlled
See procedure 2
Outdoor Central Outdoor
control
Indoor Indoor Indoor Indoor
Remote Remote Remote
control control control
Access
cover screw
Outdoor Central
control
Indoor Indoor
Remote
control
38-EN