Only a perfectly maintained system ensures reliable operation and protects your investment. Please select from our range of services or talk with us about your needs.

Preventive maintenance

Preventive maintenance protects and secures.

Interruptions in the crucial cold supply are expensive and unproductive.

An uninterruptible supply of cold energy is crucial for production. With professionally performed maintenance, you ensure the availability of your refrigeration plant and secure the production, thanks to planned preventive maintenance.

Preventive maintenance not only serves availability and prevents expensive downtimes, but it also saves energy and prevents unnecessary pollution. After all, an ideally adjusted and operated refrigeration plant reduces energy consumption to the necessary minimum.

Professional maintenance performed by WEISSHAAR trained service technicians satisfies the operator obligations which have been tightened by lawmakers. A specifically optimised cooling plant complies with the high requirements laid down by lawmakers in accordance with increasing awareness of energy consumption and new EU Directives.

All WEISSHAAR service technicians are regularly trained according to the expertise required by the legislature.

WEISSHAAR implements a certified occupational health and safety management system according to OHSAS 18001:2007.

Repairs and refitting

WEISSHAAR has extensive experience in planning and designing energy-saving refrigeration plants and is a member of the "Energy Efficiency Export Initiative " set up by the German Federal Ministry of Economics.

We have established ourselves as a competent partner for a number of companies, in particular, for converting refrigerants. WEISSHAAR already carried out the mandatory phase out of refrigerant R124 back in 1995 and switched to the very widely used refrigerant R227 – both on its in-house test facilities as well as in comprehensive field tests. Even now, with the EU F-gas Regulation that applies in 2015, we recommend changing refrigerants.

Recent years have seen various changes in the legal regulations.

In addition to new operator obligations, the EU F-gas Regulation No. 517 / 2014 stipulates that operators must discontinue using refrigerants that cause harmful greenhouse gases as well as upgrade older plants and switch to approved refrigerants. We also offer a customised package to protect your investment in the future.

Refrigeration plants can also be retrofitted to meet the current regulations or with energy-saving components. Please contact us for your individual quotation.

For more detailed information about supporting preventive measures on commercial refrigeration plants, visit the website of the German Federal Office for Economic Affairs and Export Control (BAFA).


Measuring and logging services offered by our service personnel


Are you familiar with this? The customer complains that "the projected system does not comply with performance expectations!" You are asked to fix the problem.

You suspect that the customer did not provide the agreed quantity of glycol. But how can you prove this?

WEISSHAAR has a comprehensive array of measuring equipment at its disposal, which we are happy to offer our customers as a service.

Our expert service personnel measure your plant’s current condition and then advise you on how to rectify any issues.

Convincing measurement report

We can convince our customers with an understandable, comprehensive measurement report

To do this, we use the latest measuring equipment, which we always keep up-to-date.

In addition to this service, we provide on-site consultation to solve ventilation problems and recommend meaningful hydraulic circuits within the refrigerant supply.

The EU F-gas Regulation 517/2014

We offer our customers support in complying with the operator duties imposed by lawmakers, in particular, the regulations revised by the EU F-gas Regulation No. 517 / 2014.

  • EG-VO 517/2014 (EU F-gas regulation)
  • EG-VO 1005/2009 and Chemicals Ozone Layer Ordinance
  • Ordinance on Industrial Safety and Health or section 2.35 Operating of work equipment
  • DIN EN 378-4:2012-08 concerning the repair of refrigeration plants

These regulations describe the operator’s duty to perform recurring maintenance, stricter leak inspection intervals and their new documentation, changes in refrigerants as well as the documentation of refrigeration inventories.

In practice, all leak inspection intervals must therefore be checked on the CO2 equivalents basis and adjusted accordingly.

Duty of the operator to furnish documentation for equipment which require leak tests.

Managing records:

  • Quantity and type of the contained fluorinated greenhouse gases.
  • All added quantities.
  • If recycled or reclaimed fluorinated greenhouse gases are used, the name and address of the recycling or reprocessing plant (if necessary, with certification number) must be specified.
  • All extracted quantities.
  • Information on the company, which carried out any work on the equipment (if necessary with certification number).
  • Results of the leak test (verification).
  • Recovery measures, disposal of fluorinated greenhouse gases when equipment is decommissioned.

Operators and companies performing the work are obligated to safely keep the records for at least 5 years.

New EU F-gas Regulation no. 517/2014

Consequences for maintaining refrigeration plants

Initial situation:

The goal of the first version of the EU F-gas Regulation No. 842/2006, which has been in force since 2007, is to significantly reduce F-gases emissions through improved plant leak-tightness and the recovery of F-gases. Among other things, this includes requirements for regular leak inspections, special requirements for the training and certification of service personnel as well as the reporting and documentation on the use of F-gases. In contrast to the previous regulation, essential elements have tightened the regulations and new requirements have been added. In this case, leak inspections and labels were renegotiated. From 2015 regular inspections are already prescribed for a refrigerant filling of 5 tonnes CO2 equivalent that corresponds to approx. 3.5 kg with refrigerant 134 or approx. 1.3 kg with R 404 a.

From 2020, the use of refrigerant R 404, for example, will no longer be allowed in new plants. Under certain conditions up to 31.12.2029, it will be possible to maintain existing plants using recycled or reclaimed F-gases with a GWP > 2500 (for example, R 404 a).

Plants with a quantity between a 5 tonnes CO2 equivalent and less than 50 tonnes CO2 equivalent must be checked for leaks at least once every 12 months. This interval is doubled to at least once every 24 months if they are equipped with a leakage detection system.

Plants that contain a quantity of > 50 t but less than 500 tonnes CO2 equivalent, must be checked for leaks at least once every 6 months. If fitted with a leakage detection system, they must be checked at least once every 12 months.

Plants that contain a quantity of 500 tonnes CO2 equivalent or more must be checked for leaks at least once every 3 months. Plants equipped with a leakage detection system must be checked for leaks at least once every 6 months.

The plant operators who are required to perform leak inspections must keep records, which must contain the following information, etc.: Quantity and type of fluorinated refrigerant the plant contains, quantity that was added, if necessary, during the installation, repair or maintenance. Information specifying whether the refrigerant was recycled or reclaimed, quantity of the reclaimed refrigerant where applicable, information of the company performing the work, dates and results of the inspections carried out.