Duty Rotation Control (Optional) - Panasonic CS-Z25YKEA Service Manual

14.12 Duty Rotation Control (Optional)

(This control only applies to CS-Z25YKEA/Z35YKEA/Z42YKEA/Z50YKEA/Z71YKEA)
1.1 System outline
Purpose
Duty rota on allows cascade management (Periodic turn-based turning on and off) of mul ple units in
an air-condi oned environment so that overall lifespan of unit can be extended and backup units are
available in the case of malfunc on encountered by running units.
Duty rota on in YKEA model involves two units connected to one wired remote control, classified as
Main unit (connected to CN-CNT (A) port) and Sub unit (connected to CN-CNT (B) port). Duty rota on is
managed by a built-in so ware in wired remote controller (instead of indoor unit so ware). During
normal opera on, unit is controlled by wired remote controller through CN-RMT transmission. During
Duty rota on, wired remote controller will send signals periodically through CN-CNT (A and B) signals
to indoor unit to turn ON/OFF the units.
Figure 1.1 Duty rotation system outline showing Main unit, Sub unit, CN-RMT and CN-CNT
Main Unit
Sub Unit
98
Second remocon
connec ng/not connec ng
to sub unit depends on
customer requirement.