Adjusting refrigeration systems
The advent of digital technology means huge quality improvements when it comes to the adjustment of refrigeration systems or heat pumps.
Digital manifolds provide high-precision temperature and pressure measurements, determine subcooling and superheating, but also enable reliable evacuation of the system through accurate vacuum measurement.
And the convenient testo refrigeration App makes commissioning, maintenance or repair even quicker!
All the digital manifolds at a glance
One measuring instrument – all parameters
Commissioning, maintenance and/or repair? No matter where the focus of your work on refrigeration systems and heat pumps is, Testo has the appropriate digital manifold for you.
Entry-level digital manifold
Are service and maintenance of refrigeration systems your thing? This digital manifold will mean you can work efficiently, determine superheating and subcooling in real time and avoid manual calculations which are prone to errors.
- 60 common refrigerants stored in the instrument
- Calculation of condensation and evaporation temperatures in real time
- Temperature-compensated leakage testing
Digital manifolds for all-rounders
It is not for nothing that these are our best-selling manifolds: They offer everything for all-round service and can be combined with the convenient testo refrigeration App.
- Remote monitoring and measurement documentation by smartphone and tablet
- 60 common refrigerants stored in the instrument, easy updates via App!
- Reliable evacuation via an accurate external vacuum probe
Digital manifold for professionals
Our 4-way manifold for professionals enables accurate storage and documentation of pressure measurements, temperature measurements and other important parameters of a refrigeration system in the instrument.
- Optional connection of clamp meter, oil pressure probe and up to three temperature probes
- Integrated vacuum measurement
- Continuous recording of readings for up to 999 hours
Here you can see which digital manifold is the right one for your requirements:
| ||Analog ||testo 549 ||testo 550 ||testo 557 ||testo 570 |
|Integrated temp. measurement ||– ||x ||x ||x ||x |
|Pressure measurement accuracy ||> 1% fs ||0,5 % fs ||0,5 % fs ||0,5 % fs ||0,5 % fs |
|Identical pressure measuring range (HP/LP) ||– ||≤ 60 bar ||≤ 60 bar ||≤ 60 bar ||≤ 50 bar |
|4-way valve block ||product- |
|– ||– ||x ||x |
|Internal memory / documentation ||– ||– ||With the App ||With the App ||x |
|"EasyKool" software ||– ||– ||– ||– ||x |
|No. of refrigerants ||product- |
|60 ||60 ||60 ||40 |
|Refrigerant update ||– ||– ||by App |
|by App |
|Auto. absolute pressure measurement ||– ||– ||– ||x ||x |
|Heat pump mode ||– ||x ||x ||x ||x |
|Temperature-compensated leakage test ||– ||x ||x ||x ||x |
|Vacuum measurement ||– ||indication ||indication ||accurate |
Our tip: We recommend the testo Smart Probes refrigeration set for fast testing of a refrigeration system.
testo Smart Probes Refrigeration set
Practical tips, information and training videos
Application example for digital manifolds
Find out here how easy and efficient it is to use Testo’s digital manifolds. Download free of charge now!
Refrigeration technology practical brochure
Everything you need to know about working efficiently on refrigeration systems or heat pumps. Prepared for you in a compact format and as a free download.
This is how it works: Vacuum measurement with the testo 570
See here how to initiate a perfect refrigeration system evacuation using the testo 570 digital manifold.
This is how it works: Tightness measurement with the testo 570
Here you can discover how to carry out a reliable and fast pressure resistance test on a refrigeration system using the testo 570 digital manifold.