Introduction

The priorities of this Technical Information are the relevant criteria and measures in terms of application technology when using BITZER compressors with propane (R290) or propene (R1270) for installation in commercial and industrial refrigeration, air-conditioning and heat pump systems according to the Machinery Directive 2006/42/EC.

Due to the flammability of these hydrocarbons, planning, construction and operation of such systems are subject to special safety regulations limiting their general use (e. g. Ex protection directives, operational safety regulations and limits on the maximum charge of refrigerant). The required risk assessment of the system must be prepared by the system manufacturer. However, the hazard assessment for installation, operation and maintenance of the system is the responsibility of the end user respectively employer.

In its essential aspects, the contents of this Technical Information also apply to R600a (isobutane). When used in commercial systems, R600a is suitable in particular for high-temperature applications (e.g. high-temperature heat pumps) at condensing temperatures of up to approx. 110°C. However, due to specific requirements, a customized selection of the compressors is required (upon request).

In its essential aspects, the contents of this Technical Information also apply to R600a (isobutane). When used in commercial systems, R600a is suitable in particular for high-temperature applications (e.g. high-temperature heat pumps) at condensing temperatures of up to approx. 110°C. However, due to specific requirements, a customized selection of the compressors is required (upon request).