Operation System With Two Remote Control Switches - Hitachi RPI-0.8FSG1 Service Manual

OPTIONAL FUNCTION
(4.4 Remote Control Switch)

4.4.3 Operation System with Two Remote Control Switches

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(1) By installing an additional remote control switch, a maximum of 16 units can be controlled from two
different locations.
Main and Sub Control Switch
Determine one of the two remote control switches
to be the main switch and the other as a sub
switch. Cut the jumper wire JP01 in the sub
remote control switch as shown in the right figure.
(2) Wiring Method
(a) Perform wiring between units as shown in the following figure:
(Three Unit Case)
(b) Decide the number of units. The method should be the same as in "Simultaneous Indoor Unit
Operation with One Remote Control Switch".
(3) Checking the Main and Sub Remote Control Switches
Press the "CHECK" switch and the "RESET" switch simultaneously for more than 3 seconds, the
main remote control switch is changed to the field setting mode, and the sub remote control switch is
changed to the check mode.
ATTENTION:
1. When a main remote control switch malfunctions, unit operation stops. The units cannot be operated
with only a sub-remote control switch.
2. When a main switch and a sub-switch are simultaneously operated, the units will operate according to
either one of the modes after 30 seconds.
4-38
Wiring Method
Connecting Cable between Units (3-Core or 2-Wire)
No. 0 Unit
CN12 (Yellow)
CN13 (Blue)
Remote
Control
Switch
Main Switch
Connect the main remote control switch to CN13 (or CN12)
and the sub-remote control switch to CN12 (or CN13)
Altering Method to Sub Control Switch
Cut Jumper Wire JP01 with Nipper.
No. 0 Unit
CN12 (Yellow) CN12 (Yellow)
CN13 (Blue) CN13 (Blue)
Liquid Crystal Display
JP01
No. 0 Unit
Remote
Control
Switch
Sub-Switch