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4.2. Performing measurement and diagnosis
• Measurements
Measurements, measured and calculated (in ‘All System Values’), can be performed from
the moment sensors are placed physically onto the ACR system. The sensors also need to be
‘placed’ on an existing system in Metreco. (‘ACR System’ - ‘Place Sensors’).
By combining different sensors, e.g. pressure and temperature, extra values can be
calculated.
This is the list of the different values that can be measured or calculated:
: Low pressure
: Saturated Evaporation temperature (refrigerant)
: Superheat
: High pressure
: Saturated Condensation temperature (refrigerant)
: Subcool
: Oil pressure
: Temperature low pressure side
: Temperature high pressure side
: Air temperature at condensor inlet
: Air temperature at condensor outlet
: Temperature Delta of air over condensor
: Air temperature at evaporator inlet
: Air temperature at evaporator outlet
: Temperature Delta of air over evaporator
: Pressure at condensor outlet
: Pressure Delta over condensor
: Pressure at filter outlet
: Pressure Delta over filter
: Pressure at evaporator inlet
: Pressure Delta over evaporator
: Vacuum pressure (measured)
(calculated)
(calculated)
(measured)
(calculated)
(calculated)
(measured)
(measured)
(measured)
(measured)
(measured)
(calculated)
(measured)
(measured)
(calculated)
(measured)
(calculated)
(measured)
(calculated)
(measured)
(calculated)
(measured)
When saving a system, the placement of the sensors is not saved, this is a dynamic process.
(see ‘4.6. A word on Sensor Placement’)
- Values that don’t have a sensor assigned show ‘no sensor’.
- Calculated values which can’t be calculated due to missing sensor show what value they are
missing
- Values that are available are shown at the top of the list.
- LP
- Tevap
- SH
- HP
- Tcond
- SC
- POIL
- LT
- HT
- TACONDIN
- TACONDOUT
- DTAcond
- TAEVAPIN
- TAEVAPOUT
- DTAevap
- PCONDOUT
- DPcond
- PFILTOUT
- DPfilt
- PEVAPIN
- DPevap
- PVAC