Dri-Eaz DrizAir 1200 Manual Del Propietário página 22

Owner's Manual
1.13 Service Technicians Only
FOR SERVICE TECHNICIANS ONLY
Required safety procedures for servicing dehumidifiers with R32 refrigerant:
·
Survey the area to ensure there are no sources of ignition that may lead to risk
of fire and that there are no open flames or other potential ignition sources for
refrigerant detection, and that leak detection equipment is set to a percentage of
the LFL and is calibrated for the refrigerant used.
·
Post "no smoking" signs.
·
Display component inspection procedures before repair or maintenance to
electrical components, including ensuring that capacitors are discharged, that
there is bonding continuity, and that no electrical components or wiring are
exposed.
·
Disconnect the power supply before repair.
·
Follow safety procedures for removal and evacuation of refrigerant, purging the
circuit with inert gas, opening the circuit by cutting or brazing, and recovering
charge into the correct recovery cylinders. If venting is not allowed by national
codes, purging the system with oxygen-free nitrogen if the system is to be
purged, venting the system to atmospheric pressure if oxygen-free nitrogen
charge is used, and ensuring that the outlet for the vacuum pump is not close to
any potential ignition sources.
Before decommissioning units containing R32 refrigerant, you must make
sure:
·
PPE is available and being used correctly and that the technician is completely
familiar with the equipment.
·
The recovery process is being supervised by a competent person.
·
Electrical power is available before decommissioning and isolate the system
electronically.
·
Refrigerants can be recovered safely, taking an oil and refrigerant sample in
case analysis is required prior to reuse of recovered refrigerant.
·
Equipment is available for handling refrigerant cylinders if required. Make sure
that recovery equipment and cylinders conform to the appropriate standards.
·
Only appropriate cylinders (designated for R32 refrigerant and labeled as such)
are used for recovery, and that the correct number of cylinders for holding the
total charge are available.
·
Cylinders are evacuated prior to use.
·
Recovery equipment is working and instructions are available.
·
Calibrated weighing scales are available, that hoses have leak free disconnect
couplings and are in good condition.
DrizAir 1200 Owner's Manual
22
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