5.4 TYPICAL APPLICATION EXAMPLES
The application examples given below are for illustration purposes only.
5.4.1 Application 1
Space cooling and heating application with a standard controller (or optional wired controller) connected to the unit.
4
1
9.1
10
5
11
12
9
2
3
9.2
8
6
7
FCU1
FCU2
FCUn
1 outdoor unit
2 Y-shape filter
3 shut-off valve (field supply)
4 wired controller (optional)
5
non-return valve (field supply)
6 drain valve (field supply)
7 fill valve (field supply)
8
buffer tank (field supply)
9
balance tank (field supply)
9.1 air purge valve
9.2 drain valve
10 expansion vessel (field supply)
11
Pump 2: outside circulation pump (field supply)
12
collector (field supply)
FCU 1...n fan coil units
NOTE
If the volume of balance tank(9) larger than 30L, the buffer tank(8) is unnecessary, otherwise the buffer tank(8) should be installed and the
total volume of buffer tank and balance tank should larger than 30L. The drain valve (6) should be installed at the lowest position of the
system.
An independent backup heater can be selected and installed in the door, which can provide additional heating source and ensure better
performance of the system when the ambient temperature is low.
Unit operation
when there is a cooling or heating request from the standard controller (or optional wired controller), the unit will start operating to achieve
the target water flow temperature as set on standard controller (or optional wired controller). When the room temperature reaches the set point,
the unit will stop operating. The circulation pump (built-in pump 1 and outside pump 2) will also running.
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