REFTHE / Practical guides based on official sources
Less Practical guides. More verifiable answers.
Technical paths selected to collect the correct data, read together the measures and reach the official source before taking action.
Start with the problem, not the product.
Each REFTHE guide separates observations, assumptions and verifications. It does not replace the manufacturer's manual: makes it easier to reach and use in the correct context. Field experiences will be indicated only when documented; the pages in this release are editorial analyses based on the official sources reported.
High condensation pressure: path of diagnosis
From abnormal data to compatible causes: heat exchange, flow, charge, non-condensable and real load.
superheat and subcooling: read the measurements together
Because a single temperature is not enough and what data is needed to avoid a fast diagnosis.
evacuation and dehydration: method and control of the lift
Connections, vacuometer, insulation and interpretation of the lift, without confusing it with a pressure test.
How to choose a professional leak detector
Refrigerant, sensor technology, functional verification, limits and real use on the field.
From preparation to testing of the plant
A complete path that connects preparation, joints, sealing, vacuum, charge and documented delivery.
PROCEDURES BASED ON OFFICIAL SOURCES
Five frequent problems, addressed in the correct order.
Each path indicates what to observe, what data to collect, when to stop and which official source to consult. The assumptions remain distinct from the measured results.
Low pressure: charge, air or restriction?
A path not to confuse similar symptoms on the evaporator side.
frostIneffectiveness: read all cycle
Start, finish, drip and fans in the same sequence.
The cold room does not reach setpoint
Load, air, heat exchangers, circuit and control: the correct order.
Search losses: method and confirmation
How to turn a signal into a documentable control.
The compressor does not depart
Follow the permissive chain, without bypass and without premature hypotheses.
REFTHE content is intended for qualified personnel and does not constitute autonomous operating instructions. Before each intervention consult manual, business procedures, risk assessment and applicable legislation.