Emergency Operation; Self Diagnosis Function; Filter Sign; Control Features - Daikin SkyAir PCSAU0739C User Manual

Work and Servicing
Drain pump mechanism
Steeper gradient realises more
efficient condensate drainage.
High-lift is especially useful for
long lengths of drain piping.
Pre charged for up to 30 metres
If the refrigerant piping length does not exceed 30 m, there is
no need for on-site gas charging.
Ceiling soiling prevention function
Daikin's innovative air discharge mechanism keeps airflow
away from the ceiling. Ceiling cleaning is less frequently
required.

Filter sign

The filter sign warns you when it is time to clean the filter.
*When using a wired remote controller the sign is displayed in the LCD. When using a
wireless remote controller the filter sign lamp illuminates on the signal receiver unit.

Control features

Auto-restart
If there is a power outage while the equipment is operating,
operations will restart in the same mode as before the power
cut when electricity is restored.
Auto cool/heat change-over
Detects difference in preset temperature and actual room
temperature and automatically switches to cooling or heating
accordingly.
Control by 2 remote controllers
Using 2 remote controllers you can operate the equipment
locally or from a remote location.
Note: When a wireless remote controller is used, remote control by two remote controllers is
not possible.
Group control by 1 remote controller
You can turn up to 16 indoor units on/off with a single remote
controller. (When using connected indoor units, the settings
must all be the same and on/off will be simultaneous.)
Options
High-efficiency filter unit
Two types are available: 65% and 90% colorimetry.
O t h e r s
Anti corrosion treated heat exchangers
To achieve increased durability by improved resistance to salt corrosion and atmospheric pollution, coated Anti corrosion treated heat
exchangers (with special acryl pretreatment) are used for the heat exchanger of the outdoor unit.
In high corrosive areas, regular maintenance needs to be carried out.
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Insufficient gas charging is normally hard to detect. During
post-installation trials and regular inspection procedures, the
refrigerant level is monitored by a microprocessor to maintain
proper gas pressure. Reliability is assured and maintenance
and inspection can be carried out more quickly.
If there is a malfunction elsewhere in the system, the fan or
compressor can still be operated.
The operating parameters of indoor and outdoor units, and
sensor data at critical locations throughout the system, are
constantly monitored using a microcomputer. To facilitate a
quick response in the event of a malfunction, a message
appears on the LCD of the remote controller and an LED on
the unit illuminates.
Operation and surveillance is carried out using the contact
signal from the operation control box in the building
surveillance (security) room.
*Required for KRP58M51 (Option)
(Heat pump only)
An optional central remote controller enables centralised
control of up to 1024 indoor units (64 groups) from up to 1
kilometer away.
Enables interlocking control with external equipment such as
Heat Reclaim Ventilator.
You can provide air-conditioning with fresh air from outside.
Convenient for places where a ventilation fan cannot be
installed.
Note:
Low gas pressure detection

Emergency operation

Self diagnosis function

External command control
Central remote control
Interlock control
Fresh-air intake kit
*Connecting ducts, insect nets, fire dampers, air filters, and other parts
should, as required, be procured locally.
**Outside Air fan interlocked with air conditioning unit is necessary. Optional
PCB(KRP1C63)is required for interlocking.
***It is recommended that the volume of outdoor air introduced through the kit
is limited to 10% of the maximum airflow rate of the indoor unit. Introducing
higher quantities will increase the operating noise and may also influence
temperature sending.