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ESK Schultze ERM2 - User Manual

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Elektronische Ölspiegel-
regulatoren ERM2 / ERHD
Die genannten ESK-Komponenten sind ausschließlich
für die Anwendung in Kälteanlagen bestimmt.
Sie entsprechen der EG-Druckgeräterichtlinie 97/23/EG.
Eine Inbetrieb nahme ist nur unter der Voraussetzung
zulässig, dass der Einbau entsprechend den gesetzlichen
Vorschriften erfolgte. Alle Komponenten werden entspre-
chend den geltenden Regeln konstruiert und gefertigt.
AD-Merkblätter; Druckgeräterichtlinie; EN 378
Das Produkt erfüllt folgende Bestimmungen:
EMV Richtlinie 2004 / 108 / EG,
Niederspannungsrichtlinie 2006 / 95 / EG
Ro HS Ri ch tlinie 2011 / 65 / EG .
Electronic Oil Level
Regulators ERM2 / ERHD
The ESK components mentioned shall be used
in refrigeration plants exclusively.
They correspond to EU-Pressure Equipment Directive
97/23/EG. Operation is only permitted if the installation
was carried out in accordance with legal regulations.
All components are constructed and produced in accord-
ance with the regulations in force.
AD leaflets; pressure equipment guideline; EN 378
The product fulfils the Regulations of
the EMC-Directive 2004 / 108/ EC,
the Low Voltage Directive 2006 / 95 / EC
the RoHS-Directive 2011 / 65 / EC.
Produkteigenschaften
Aufbau: Regulatorkörper aus Aluminium
 Große Zuströmquerschnitte
 Elektronikgehäuse aus Kunststoff
 Schauglas für visuelle Füllstandskontrolle
 Druck- und dichteunabhängige Istwert-
erfassung des Füllstandes
 Regelniveau: Mitte Schauglas
 Opto-elektronisches Messverfahren
 Zwei Relais zur Signalisierung und
Aufzeichnung von Betriebszuständen
Sicherheit:
Verstärkte LEDs führen zu verringerter Anfälligkeit
durch verschmutztes Öl
 Integriertes Notlaufprogramm sorgt selbst bei
widrigsten Umständen für die Ölversorgung
 Vierfach-Messpunkte ermöglichen die Signalüber-
wachung von Unter-, aber auch Überfüllung
 Alarmfunktion bei Über-, Unterfüllung
und bei aktiviertem Notlaufprogramm
Product Features
Design: Regulator case made of aluminium
 Wide cross sections for oil flow
 Electronic case made of plastic
 Sight glass for visual oil level control
 Actual level value detection independent of
pressure and density
 Control level: middle sight glass
 Opto-electronical measuring method
 Two relays for signalisation / recording of
system operating conditions
Security:
 Reinforced LEDs lead to reduced sensitivity
caused by contaminated oil
 Integrated emergency operation program arranges
for oil feed even in adverse conditions
 Quadruple measure points enable signal control
of under- but also overfilling
 Alarm function for over-, underfilling and for
activated emergency operation program
Typ / Type ERM2-OC
und /and ERM2-0-BC
1/8
MADE
IN
GERMANY
www.esk-schultze.de
Montage- und Betriebsanleitung
Installation and operating instructions
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Summary

Product Features

Design

Regulator case made of aluminium, wide cross sections for oil flow, plastic electronic case, sight glass.

Security

Reinforced LEDs, integrated emergency program, quadruple measure points, alarm function for over/underfilling.

Technical Data

Application

Oil level regulators maintain adequate oil level in multi-compressor parallel systems; oil fed from reservoir.

Dimensional Drawings

Exploded View

Installation and Put into Operation

Connection Scheme

Wiring Diagram

Operating with Refrigerant R744;CO2

CO2 Safety Precautions

CO2 is dangerous; colorless, odorless, poses suffocation risk. High pressure risks burst; use safety valves; avoid dry ice blocking.

Function Description

Emergency Operation Mode

Activated by dirt/malfunctions, ensures oil supply, signaled by blinking LEDs, maintains oil level between MP3 and MP4.

High Level Alarm

Recommends not to switch off compressor; prevents start-up if activated, switches off during work if oil carry-over occurs.

Adapter Kits for Regulator Installation

Safety Instructions

Handling and Installation Expertise

For competent experts only; improper use causes damage; follow installation limits, tightness checks, and handling regulations.

Component Return Procedure

Devices must be completely emptied of oil and refrigerant before return.

Summary

Product Features

Design

Regulator case made of aluminium, wide cross sections for oil flow, plastic electronic case, sight glass.

Security

Reinforced LEDs, integrated emergency program, quadruple measure points, alarm function for over/underfilling.

Technical Data

Application

Oil level regulators maintain adequate oil level in multi-compressor parallel systems; oil fed from reservoir.

Dimensional Drawings

Exploded View

Installation and Put into Operation

Connection Scheme

Wiring Diagram

Operating with Refrigerant R744;CO2

CO2 Safety Precautions

CO2 is dangerous; colorless, odorless, poses suffocation risk. High pressure risks burst; use safety valves; avoid dry ice blocking.

Function Description

Emergency Operation Mode

Activated by dirt/malfunctions, ensures oil supply, signaled by blinking LEDs, maintains oil level between MP3 and MP4.

High Level Alarm

Recommends not to switch off compressor; prevents start-up if activated, switches off during work if oil carry-over occurs.

Adapter Kits for Regulator Installation

Safety Instructions

Handling and Installation Expertise

For competent experts only; improper use causes damage; follow installation limits, tightness checks, and handling regulations.

Component Return Procedure

Devices must be completely emptied of oil and refrigerant before return.

ESK Schultze ERM2 Specifications

General IconGeneral
Power1.5 kW
Voltage230 V
Frequency50 Hz
Max Pressure8 bar
Tank Capacity24 l