Daikin VRV System R-22 PLUS Series Manual page 126

Si33-102.book Page 124 Tuesday, June 26, 2001 3:18 PM
Appendix
7.8.7 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 The transmission wiring between the cool/heat selector and the outdoor unit is too close to a high voltage
Remedial Action
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.
7.8.8 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 control is OFF.
2. The central remote control or unified ON/OFF control, 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 control.
Wire the central remote control or unified ON/OFF control, 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 control and indoor unit before setting the
centralized control group number.
7.8.9 Example 9: "88" cannot be cleared from the central remote control.
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SiE33-102