30/136
Siemens
Building Technologies
1
Introduction
This manual contains all the information required to install,
operate and commission PolyCool™ Superheat. All the required
user-specific settings can be made directly on the device, without
the use of additional tools.
2
Functional description
The following functions allow an optimal filling of the evaporator by
using PolyCool™ Superheat:
Control of the superheat
Monitoring of minimum superheat
MOP function (Maximum Operating Pressure)
Monitoring of pressure and temperature sensor
Alarm contact: The monitoring function can, depending
on the wiring, activate an alarm horn or be integrated into
the safety chain of the compressor.
Service function (manual opening of the valve)
Optionally, it is possible to configure control of the cooling capacity
(refer to chapter 6)
3
System components
PolyCool™ Superheat contains the following components:
Controller: RWR462.10
Electronic injection valve:
Pressure sensor with 4...20 mA output signal:
Temperature sensor -50...80 °C / -58...176 °F:
The devices above require a supply voltage of AC / DC 24 V.
For AC 24 V, we recommend an isolation transformer with a
minimum of 25 VA.
CPS40
Data sheet
MVL661...-...
MVS661.25-...
QBE9101-P10U
QAZ21.682/101
CE1U3372XX / H 74 319 0555 0 d
2013-10-01
N3372
N4714
N4717
Q1908
N1848