36
MAINTANENCE
Three-monthly checks
Carry out the following checks every three months:
•
check the power supply;
•
check the alarm status;
•
check the working pressures and temperatures;
•
check the correct operation of the local/remote controls;
•
check the air filters, cleaning and replacing them if
necessary;
•
check the efficiency of the condensing drain;
•
check the steam cylinder is clean, replacing it if
necessary;
•
check and clean if necessary the condensing coil.
Six-monthly checks
Carry out the following checks every six months:
•
repeat these checks on a three-monthly basis;
•
check and clean if necessary the cooling coil;
•
check the operation of the humidifier (if present).
Annual checks
Carry out the following checks every year:
•
repeat these checks on a six-monthly basis;
•
check the varnish and the nuts and bolts;
•
check the hinges, rabbets and gaskets;
•
check the cables and wiring;
•
tighten the terminal blocks;
•
check and reset if necessary the safety device settings
(pressure switches, thermostats, protection devices);
•
check the operation of the post heating electrical heaters
•
check the fittings, operation and absorption of the
evaporating fan/s;
•
check the fittings, operation and absorption of the
compressor/s;
•
check and if necessary replace the seal of the refrigerant
circuit/s and tighten the joints and connections of the
unit;
•
check and top up if necessary the refrigerant gas and/or
oil;
•
check and if necessary reset the regulation devices
setting;
•
check and if necessary replace the seal of the hydraulic
circuits/s and tighten the unit couplings;
•
check the fittings and operation of the condensing fan/s;
•
check and reset if necessary the condensing speed
setting.
Checks to be performed every sixty months
•
Check and if necessary replace the gas filters;
•
check and if necessary replace the compressor oil.
Cleaning and repalcing the filters
Models TD. 2222 ÷ 3342
To clean and replace the filters carry out the following
procedures:
•
remove the front cover of the filters by turning
anticlockwise the panels screws;
•
remember the direction of the air flow indicated on the
label of each filter and draw the filters;
•
clean them using a blast of compressed air or replace
them;
•
clean them using a blast of compressed air or replace
them;
•
mount the front cover of the filters.
