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Maintenance and servicing of refrigeration plant

Customer service, direct line: +49 7344 9692-888

Regular maintenance and servicing of your refrigeration plants increases their operational safety and availability and essentially influences their service lives. In particular parts with high temperature and pressure stress and all wear parts require regular review and maintenance. Our maintenance offer also includes cleaning of parts if contamination is impairing function and energy efficiency of a chiller. This applies specifically to recoolers that are suffering from air pollution more frequently in particular in the blossoming time.

Your benefits in the scope of HM maintenance & servicing

  • Maintenance of the planned service life of systems
  • Ensuring availability and consistent energy efficiency
  • Meeting statutory requirements

Our service profile in customer service

  • Conversion of refrigeration plants to environmentally compatible refrigerants
  • Conversion work on split-cooling plants
  • Function check at the refrigeration plant
  • Exchanging power-intensive legacy components for high-efficiency products (pumps, fans, expansion valves, etc.)
  • Function adjustment in MSR technology, optimisation of control parameters
  • Review and adjustment of system hydraulics
  • Maintenance and service plan according to customer needs
  • Maintenance and servicing of refrigeration plants, including their peripherals from any manufacturers
  • Hygiene review of cooling towers
  • Professional handling of hazardous substances

Tightness check & emission avoidance

Operators of refrigeration and air conditioning operated with refrigerants from the group of fluorinated greenhouse gases (PFC and HFC), are legally required to avoid emission of fluorinated greenhouse gases.
Refrigeration plants, air conditioning and heat pumps operated with fluorinated greenhouse gases require regular inspection as of 5 tons [t] CO2-equivalent. Starting at a volume of 500 tons CO2-equivalent, the system also must be equipped with a leakage recognition system. This system must be reviewed every 12 months.

Calculation of CO2-equivalents: Refrigerant filling volume (kg) * GWP-value/1000 = CO2-equivalents (t)


The following table can be used to estimate the CO2-equivalents based on the known coolant filling volume:

Correspondence table for common refrigerants

The following table contains the minimum deadlines of the tightness controls depending on the CO2-equivalents:

Filling volume CO2-equivalent

Frequently without leak recognition system

Frequently with leak recognition system

from 5 to less than 50 tons every 12 months every 24 months
from 50 to less than 500 tons every 6 months every 12 months
as of 500 tons every 3 months every 6 months

The tightness check must only be performed by certified staff. The same applies to maintenance, servicing and recovery of refrigerants.

According to the regulation (EU) no. 517/2014 of the European parliament and the council, the following provisions apply

  • Logging the filling volumes for submission to authorities
  • Immediate repair at leaks
  • Repeated tightness check after repair of leaks
  • Obligation to maintain records and system logs per system
  • Recording the volume and type of recovered or refilled refrigerants

Benefits of performance of tightness tests

  • Ensuring test intervals in compliance with the regulations
  • Reducing energy costs
  • Avoiding violations of applicable law (fines of up to 50,000 € per violation)

Tightness test

  • Installation of a leak recognition system to permit quick reaction to escaping climate-damaging gases

Service package

  • Logging the fill levels according to EC regulations
  • Tightness test/repeat test at leaks
  • Training the operator regarding regulation-compliant operation, logging and keeping logs
  • Strategy considerations on refrigerant alternatives