Daikin FXHQ-M Engineeiring Data page 31

Installation
lation manual attached to the wireless remote controller for
setting instructions.
11-2 CONTROLLING 1 INDOOR UNIT BY 2 REMOTE
CONTROLLERS
• When using 2 remote controllers, one must be set to MAIN
and the other to SUB.
MAIN/SUB CHANGEOVER
(1) Insert a screwdriver into the recess between the upper
and lower part of remote controller and, working from the
two positions, pry off the upper part.
The remote controller PC board is attached to the upper
part of remote controller. (Refer to Fig. 35)
• Turn the MAIN/SUB changeover switch on one of the two
remote controllers PC boards to [S]. (Leave the switch of
the other remote controllers set to [M].) (Refer to Fig. 36)
Insert the screw driver
here and gently work
off the upper part of
remote controller.
S S
(Factory setting)
M
Only 1 remote
controller needs
S
to be changed if
M
factory settings
have remained
untouched.
Fig. 36
Wiring Method
See Section 8. ELECTRICAL WIRING WORK on page 192
and Section9. WIRING EXAMPLE AND HOW TO SET THE
REMOTE CONTROLLER on pages 192 to 195.
(2) Remove the control box lid.
Add 2nd remote controller to the transmission terminal block
(P1, P2) in the control box. (There is no polarity.)
(Refer to Fig. 29 on page 193 and Table 4 on page 194.
11-3 COMPUTERIZED CONTROL (FORCED OFF
AND ON/OFF OPERATION)
1. Wire specifications and how to perform wiring:
30
Upper part of
remote controller
Lower part of
remote controller
Fig. 35
Remote controller
PC board
• Connect the input from outside to terminals T1 and T2
of the terminal block for remote controller..
F2
Wire specification 2-conductor, stranded, non-shielded cop-
per cable / PVC or vinyl jacket
Gauge AWG 18
Length Max. 328 ft.
Contact that can ensure the minimum
External terminal
applicable load of 15 V DC, 10 mA.
2. Actuation
• The following table explains FORCED OFF and ON/
OFF OPERATIONS in response to Input A. The T1-T2
terminals are standard on all Daikin indoor units and
allow for remote starting and stopping of equipment.
Individual indoor units can be field prgrammed at the
remote controller to change the T1-T2 sequence of
operation of the equipment based upon the application.
FORCED OFF (Manual Restart)
Mode No. 12
First Code No. 1
Second Code No. 01
DEFAULT SETTING
Input A OFF (Open Circuit)
An open circuit between termi-
nals T1 and T2 allows the unit to
run normally.
Input A ON (Closed Circuit)
Closing the normally open cir-
cuit between terminals T1 and
T2 stops operation of the unit.
When T1-T2 is opened, the unit
must be restarted with the
remote controller.
.
• How to select FORCED OFF and ON/OFF OPERA-
TION Turn the power on and then use the remote con-
troller to select operation. These codes are
programmed at the remote controller. Individual unit
groups can be programmed independently.
EDUS39-600-F5
T1 T2
FORCED
OFF
Input A
ON/OFF OPERATION
Mode No. 12
First Code No. 1
Second Code No. 02
Input A OFF (Open Circuit)
An open circuit between termi-
nals T1 and T2 prevents unit
operation.
Input A ON (Closed Circuit)
A closed circuit between termi-
nals T1 and T2 allows normal
operation of the unit.
FXHQ-M