SiEN34-705
Appendix
General Information
201
7.14.7 Example 7: Transmission Wiring between the Cool/heat Selector and
the Outdoor Unit is too Close to a High Voltage Wire.
Situation
Heating is indicated despite having selected cooling with the cool/heat selector.
Cause and
Remedial Action
The transmission wiring between the cool/heat selector and the outdoor unit is too close to a
high voltage wire. An induced voltage is, therefore, being impressed on the transmission wiring
which is causing a heating/cooling malfunction in the outdoor unit PC board.
Bypassing the transmission wiring will allow the unit to function normally.
Main Points
!
Keep low and high voltage wiring away from each another.
7.14.8 Example 8: The Centralized Control Group Number cannot be Set
(Inverter K Series).
Situation
An attempt was made to set the centralized control group number with the indoor unit remote
control, but “00” cannot be selected in the field setting mode.
Cause
1. The central remote control or unified ON/OFF controller is OFF.
2. The central remote control or unified ON/OFF controller, or indoor unit is not wired to the
centralized control line (F1 & F2).
Remedial Action
Supply power to either the central remote control or unified ON/OFF controller.
Wire the central remote control or unified ON/OFF controller, or indoor unit to the centralized
control line.
Main Points
!
When communications with the central remote control are down, “00” cannot be selected in
the field setting mode.
!
Activate power to the central remote control, unified ON/OFF controller and indoor unit
before setting the centralized control group number.
Transmission wiring (low voltage wire)
Outdoor unit
High voltage wire
Cool/heat selector
Field setting
mode
Mode No.
Group No.
Содержание RXYQ5PY1
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