Introduction; Functional Description; System Components - Siemens CPS 40 Installations- Und Bedienungsanleitung

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Building Technologies
HVAC Products
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: MVL661...-...
•
Pressure sensor: QBE9101-P10U with 4...20 mA output
signal
•
Temperature sensor: QAZ21.682/101, -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 CE1U3372XX / H 74 319 0555 0 a
22.09.2006