36
Case Maintenance
General Check List
During annual visits the following maintenance checks should be carried out as a minimum
to ensure case operation and safety. Any additional requirements to satisfy prevailing
regulation should also be met. Only qualified and approved refrigeration and electrical
engineers should carry out these checks.
Ensure all cable connections are secured; especially all screw terminals, earth leads and
straps.
Ensure insulation is sound to all electrical components including expansion valves, fans, ,
controls, earth and terminals
Ensure the case internals are free of any foreign materials.
Electrical safety tests including earth continuity and insulation resistance should be
conducted on the case yearly or more frequently if the prevailing electrical regulations
specify.
Ensure that the correct fuse rating and type is fitted for all circuits.
Ensure all fans, valves, lights, blinds and controls are working correctly.
Check condenser for damage
Check evaporator coil for damage.
Ensure that there are no refrigerant leaks.
Check drainage connections and tray
Check that all case panels, glass and trims are secure.
Always electrically isolate case before carrying out any work that effect or
expose electrical components or moving parts such as fan blades
Access to Fans, Evaporator and Expansion Valves
Evaporator Fans
Lift out deck pan plates and if removing fan baffle assembly (lower rear), lift off and
place in case ensuring no strain is placed on connecting cables
Evaporator
Remove the lower back baffle plate by pushing up and pulling out via the finger
access holes
Condenser Fans
Remove the front panel by lifting and pulling toward you, release the screw fixing on
left and right of the refrigeration tray and slide the forward the refrigeration tray
Pure Cold Impact 6 Installation,
Operation & Maintenance Manual
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