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Annual Cleaning: By a competent Service/Maintenance Engineer
•
Isolate unit from mains electricity supply.
•
Remove any extraneous debris from the unit or it’s casing, preferably
with a vacuum cleaner or brush.
•
Check unit for electrical safety.
Power Isolation Method
The unit is fitted with a single phase, 3 pin, 13 amp plug, fitted with a 13 amp
fuse or alternatively a standard Euro Plug to IEC83: 1975
•
Switch off unit at the socket the plug is installed into
•
Remove the plug from the socket
WARNING: IF THE MAINS LEAD FITTED TO THIS EQUIPMENT IS
DAMAGED IN ANY WAY, IT SHOULD BE REPLACED. ONLY A FULLY
TRAINED ENGINEER MUST UNDERTAKE THIS CHANGE.
Portable Appliance Testing (PAT)
An additional test point has been fitted to the top of the rear panel of the unit
to provide a connection for PAT testing of the units on site. The tank drain
exits the unit via a 1/2 “ bulk head situated on the lower part of the left hand
panel. The shut-off valve can be accessed by removing the front lower grill.
Glycol flow and return connections are indicated by a coloured disc (red disc
for flow to the heat dump and blue for return from the heat dump).
Decommissioning of the glycol lines should be undertaken before
decommissioning of the 24V electrical socket in order to prevent the ingress of
glycol/water into the electrical socket.
Thermal Cut-Out
The unit is fitted with a thermal cut-out which will protect the refrigeration
system in the unlikely event of a fault in the glycol /heat dump system. The
thermal cut-out will isolate the power supply to the compressor if the heat of
the discharge lines increases above 65
°
C. The compressor will not cut back
in until the temperature in this line falls to below this temperature.
