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Call 1300 369 273
www.enware.com.au
SERVICE AND MAINTENANCE
Warning: Always isolate the power from the chiller before working on the unit.
Warning: Always ensure that personnel have read and understood the SAFETY section of this
manual prior to working on the unit.
The units are designed to be low maintenance however some preventative maintenance is
recommended to extend the life of the product.
Recommended preventative maintenance program:
Operational check
Frequency
Refrigerant Charge checked
Every 6 Months
Electrical connections are tight
Every 6 Months
Compressor amp draw
Every 12 Months
Pump amp draw
Every 12 Months
Condenser fins cleaned
Every 6 Months
Cables - inspect all cables to check no damage from hot spots or sharp points
Every visit
Troubleshooting:
Water not cold • If compressor does not start when controller reads >20C points to faulty controller
• If compressor does not start, check wiring integrity
• If compressor does not start, check temperature of the compressor – maybe over heating
• Compressor starts at the same time as the fan – do they both come on? If not, maybe faulty
compressor or faulty fan
Water not cold • No flow through the heat exchanger – check if there is frosting on the evaporator – excess frosting
points to low water flow
• No flow through the heat exchanger – remove one of the water lines and check flow
• Check current draw on the pump – maybe tight or tightening up
Water not cold • Problems with the refrigerant system – gas leaks will cause the unit to trip on the low-pressure safety
switch installed next to the fan
• When the unit is running check the refrigerant flow though the sight glass – if there are bubbles then
the system may need a top up of gas after a refrigeration mechanic has checked the system
• If it is suspected that there is a refrigerant leak do not run the unit – it my draw moisture into the
system
Water leaks
• Check fittings – 4 in total by removing the access panel.
• Check that the pressure relief valve on the tank hasn’t opened – it is set at 1000kPa on the small
units – 800kPa on the larger units - so there may be too much pressure which would point to the
pressure limiting valve that is installed being faulty or the pressure relief valve being faulty