Airedale Chilled Water Cassette 2kW - 11kW - Manual (Page 23)

24 Technical Manual: 6806236 0 /20
CHILLED WATER CASSETTE
Setting arrows
(Set point, select device, etc.)
Display showing the ambient temperature
Selecting a zone displays
the corresponding ambient temperature
Changing device set point and set temperature limit
Programming button
Set clock and timer
Changing device parameters
Fan
High
Medium
Low
Mode
Cool
Heat
Auto cool/heat
Fan only
Auto Fan
Auto Fan
Fan ON
Device setting
Send device setting - Display
ON/OFF button
Connection of the units in series and centralised management
A group of Airedale cassette units with infra-red remote control microprocessor can be connected via a serial link and
can consequently be managed at the same time by just one infra-red remote control. Using the special jumper present
on the board, one unit must be configured as the master, and all the others as slaves. It is clear that the remote control
must be pointed at the receiver on the master unit. To avoid problems, it is recommended to install and connect the
receiver only on the master unit.
Another option available for the serial communication between the units is the possibility to connect up to 60 Airedale
cassette units in series (the maximum length of the connection cable must not exceed 800 m) and manage them with
just one wall-mounted intelligent PCR-DI controller. The wall-mounted controller can be used to set the operating mode
for each individual unit connected, display the operating conditions of each individual unit, and set the on/off time sets
for each day of the week. If more than 60 units need to be connected, two or more wall-mounted intelligent controllers
must be used. Each wall-mounted controller only manages the units it is connected to.
The PCR-DI control is used to manage a series of cassettes, up to a maximum of 60 units, from one single control
point. The PCR-DI control communicates via a serial line with all the units connected, with the possibility of controlling
them all together or individually. In fact, the unique address of each individual cassette means that all the units can
be called at the same time, or the individual unit called, to perform the following functions:
- display the current operating mode, the fan speed, the set point
- display the room temperature measured on the individual unit
- turn all the units on and off at the same time or alternatively each unit individually
- change the operating mode (fan only, heating, cooling, automatic changeover)
- change the set point
Each function can then be sent to all the units connected, or alternatively to each individual unit.
Different set points or operating modes can be set for each individual unit.
The PCR-DI panel can also be used for the time management of the units over the week. Two on times and two off
times can be set on the units for each day of the week.
The weekly programming mode can be stopped at any time, returning to the manual setting and then weekly
programming mode can subsequently be started again.
Unit with infra-red remote control
Identification
PCR - DI
Code
9079102