Operating Instructions

Page 7 of 12
Drawing : - TPC156
Issue : - 1
Date : - 04/11/03
ROUTINE MAINTENANCE
To ensure continued full efficiency of the Timber Seasoner it should be
subjected to periodic maintenance procedures as follows :-
• Clean the surface of the evaporator coil and condenser coils by blowing the
dirt out from behind the fins with compressed air. Hold the nozzles of the air
hose about 150mm away from the coil to avoid damaging the fins.
Alternatively vacuum clean the coils.
• Check the fans are secured to the motor shafts and that the fans rotate
freely. The fan motor is sealed for life and therefore does not need oiling.
• To check the refrigerant charge, run the unit for 15 minutes (with the
controls set in the “DRYING” position) and remove the front cover. The
evaporator should have an even coating of frost across its width. At
temperatures above 20°C the coil may be covered with droplets of water
rather than frost. Partial frosting across the evaporator coil accompanied by
frosting of the thin capillary tubes indicates a loss of refrigerant.
• Check all wiring connections for security.
• The bolts retaining the compressor and fan motor should be inspected to
ensure they have not become loose. Check the insulation sleeves on the
refrigeration pipe work have not become detached.
• Inspect the drain tray for water marking. If marking is excessive check the
drain pipe for blockages.
WARNING:
DO NOT STEAM CLEAN REFRIGERATION COILS
WARNING
ISOLATE THE MACHINE AND CONTROL SYSTEM BEFORE CARRYING
OUT ROUTINE MAINTENANCE