Daikin VRV RXYMQ-A Series Service Manual page 135

SiME332106E
 Mode 2-84: Initial opening electronic expansion valve BP unit heating thermostat-ON:
 Mode 2-90: Indoor unit without power U4 error generation. In case an indoor unit needs
 Mode 2-96: Eco level setting for Eco mode by main PCB
Mode 2-96
Part 5 Field Settings and Test Operation
 Default value: 1. RA cool/heat master logic. Any RA indoor unit that is switched first, is
assigned as cool/heat master as long this unit is in operation (regardless thermostat
status). Only when this indoor unit is switched OFF operation (by remote controller),
other indoor unit can become cool/heat master:
 Priority is given to indoor unit operating in the same mode as the previous cool/heat
master switched OFF operation.
 Only no more indoor unit operate in the same mode as the previous cool/heat master,
other RA indoor unit can become cool/heat master to switch to the other operation
mode.
 RA indoor unit that is operating, but demanding the other operation mode set by the
cool/heat master, enters the "stand-by mode": operation LED blinks.
 VRV indoor unit change the operation mode immediately when outdoor unit receives
change of operation mode from the current cool/heat master RA indoor unit.
 Field Setting 0: VRV cool/heat master logic.
 At time of first startup, or when cool/heat master was released, one of connected VRV
DX indoor unit can be assigned cool/heat master. The symbol "locked cool/heat
selector" blinks. In case of wireless controller kit is used, the green clock LED
blinks on the receiver.
 Confirm cool/heat master to a VRV DX indoor unit: press once the cool/heat selector
button
on the remote controller of the indoor unit to be set as cool/heat master.
 Default value: 1 (500 pulse)
 Field setting 0: 400 pulse, 2: 600 pulse, 3: 300 pulse.
maintenance or repair on the electric side, it is possible to keep the rest of the VRV DX
indoor units operating without power supply to some indoor unit(s).
 Default value: 0. Not active.
 Field setting 1: Possible to operate system when some indoor units are temporary
without power supply. The following conditions must be fulfilled:
 Maximum equivalent piping length of the farthest indoor less than 120 m.
 Index indoor units power simultaneously less than 30% of the nominal outdoor.
 Total capacity is less than 30% of the nominal one of the outdoor unit.
 Operation time is limited to 24 hours period.
 It is recommended to shut down connected indoor units at the same floor.
 Not possible to use service mode operation (e.g. recovery mode).
 Backup operation has priority over this special feature.
 Not possible to use when the indoor unit electronic expansion valve is defective.
 Not possible to use with systems that include BP units.
 It is necessary to wait for 10 min. before shutting down the connected indoor units
after indoor units operation is stopped.
 Default value: 0
Eco level setting
0 OFF (default)
1 Low
2 Standard
Field Settings for Outdoor Unit
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