Sealey SDH102 - Maintenance; Filter Cleaning; Cleaning the Casing

Original Language Version
© Jack Sealey Limited
SDH102 Issue 1 07/11/18
It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure, ensure that:
 •mechanicalhandlingequipmentisavailable,ifrequired,forhandlingrefrigerantcylinders.
 •allpersonalprotectiveequipmentisavailableandbeingusedcorrectly.
 •therecoveryprocessissupervisedatalltimesbyacompetentperson.
 •recoveryequipmentandcylindersconformtotheappropriatestandards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with instructions.
 h)Donotoverllcylinders(nomorethan80%volumeliquidcharge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
 j)Whenthecylindershavebeenlledcorrectlyandtheprocesscompleted,makesurethatthecylindersandtheequipmentare 
removed from site promptly and all isolation valves on the equipment are closed off.
k) Recovered refrigerant shall not be charged into another refrigerating system unless it has been cleaned and checked.
5.1.19. Labelling
5.1.19.1. Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and
 signed.Forappliancescontainingammablerefrigerants,ensurethattherearelabelsontheequipmentstatingtheequipment 
 containsammablerefrigerant.
5.1.20. Recovery
5.1.20.1. When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all
refrigerants are removed safely.
5.1.21. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that
the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the
recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be
complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders
are evacuated and, if possible, cooled before recovery occurs.
5.1.21.1. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be
 suitablefortherecoveryofallappropriaterefrigerantsincluding,whenapplicable,ammablerefrigerants.Inaddition,asetof 
calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings
and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained
and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer
if in doubt.
5.1.21.2. The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant waste transfer
note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.
5.1.21.3. If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain
 thatammablerefrigerantdoesnotremainwithinthelubricant.Theevacuationprocessshallbecarriedoutpriortoreturningthe
compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this process. When oil is
drained from a system, it shall be carried out safely.
6. MAINTENANCE
 WARNING! Switch the machine off and unplug from the mains before carrying out any maintenance or cleaning.
6.1. FILTER CLEANING
6.1.1. It is recommended that the air filter is cleaned every two weeks maximum.
6.1.2. To remove the filter, remove water tank (section 4.1.4.3.) and gently pull down exposed tab of filter.
6.1.3. The filter may only be washed with water. DO NOT use hot water. Leave to dry naturally. DO NOT use solvent cleaners nor use heat to
dry the filter.
6.1.4. Once dry, replace the filter by snapping it back into place, making sure that the lower edge fits behind the casing locations and that all the
lugs are sprung gently into place thus holding the filter up inside casing.
6.2. CLEANING THE CASING
6.2.1. The casing may be cleaned by rubbing over with a damp cloth. DO NOT use detergents, abrasive or solvent cleaners as these will
damage the surface finish.
8 DO NOT allow the control panel to become wet.
6.3. STORAGE
6.3.1. See section 4.1.2 for instruction on preparing the unit for any long term storage period.