Technibel CAFP 124 R Installation Instructions Manual page 71

04-393 DC INV Tech p 64-110
10-8-5. Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(1) So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that
the indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control
PCB, and use a magic marker or similar means which cannot be easily erased to indicate the numbers in an
easily visible location on the indoor units (near the indoor unit nameplates).
Example: (Outdoor) 1 - (Indoor) 1, 2...
(2) These numbers will be needed for maintenance. Be sure to indicate them.
* Use the remote controller to check the addresses of the indoor units. Press and hold the
button for 4 seconds or longer (simple settings mode). Then press the
address. (Each time the button is pressed, the address changes as follows: 1-1, 1-2, ... 2-1, 2-2, ....) The
indoor unit fan operates only at the selected indoor unit. Confirm that correct fan is operating, and indicate
address on the indoor unit.
Press the button again to return to the normal remote controller mode.
For details, refer to the separate handbook.
10-8-6. Main-sub remote controller control
Control using 2 remote controller switches
Main-sub remote controller control refers to the use of 2 remote controllers to control 1 or multiple indoor units.
(A maximum of 2 remote controllers can be connected.)
G
Connecting 2 remote controllers to
control 1 indoor unit
Ground
Ground
(Setting procedure)
(1) Set 1 of the 2 connected remote controllers as the
main remote controller.
(2) On the other remote controller (sub remote con-
troller), change the remote controller address con-
nector on the reverse side of the remote controller
switch PCB from the Main position to the Sub
position.
The remote controller will now function as the sub
remote controller.
The sub remote controller will also operate if con-
nected to indoor unit 2.
12/13/04 11:35 AM Page 71
(Outdoor) 2 - (Indoor) 1, 2...
G
Connecting 2 remote controllers to control a
simultaneous-operation multi system
Remote controller Remote controller
switch (main) switch (sub)
Optional Optional
1 2
1 2
Remote controller wiring
Terminal plate
for remote
1 2
controller wiring
Indoor unit
U1U2
1 2
Outdoor unit
Remote controller Remote controller
switch (main) switch (sub)
Optional Optional
1 2 1 2
Terminal plate
for remote
controller wiring
1 2 1 2
Indoor unit 1 Indoor unit 2
U1U2 U1U2
Ground Ground
1 2
Inter-unit
Outdoor unit
control wiring
Ground
To Service Technicians
To display the sensor temperature: To display the trouble history:
Press both and buttons on the Press both
remote controller for more than 4 seconds remote controller for more than 4 seconds
together. together.
Change the sensor address (CODE NO.) Change the alarm message:
with / (SET TEMP) buttons.
Select the UNIT NO. that you want to call CODE NO.
with button.
Press the button to finish service mode. Press the
mode.
RCU.Main
RCU.CK
RCU.Sub
RCU
RCU.ADR
TMNL.
To avoid an electric shock hazard,
WA R N I N G
DO NOT touch any ter-
minal on the Printed Cir-
cuit Board with a metal rod, a
screwdriver edge or bare hand
when power
is supplied.
71
button and
button and select the indoor
Remote controller
crossover wiring
Terminal plate
for remote
controller wiring
1 2
Indoor unit 3
U1U2
Ground
TIMER
TMNL.
and buttons on the
Remote controller
address connector
/ (SET TEMP) buttons
(New) (Old)
button to finish service
Remote Controller (Main)
Checking remote controller
Changing method for room
temperature sensor (from Indoor Remote Controller (Sub)
unit to RCU)
On the remote controller, press
1
+ + at the same time for
more than 4 seconds.
2 Set CODE No. with /
(SET TEMP) button.
3 Set DATA from to
with / (TIMER) button.
4 Press
Finally, Press
Fig. 10-8