ENVIROMASTER INTERNATIONAL LLC
17
MAINTENANCE
EVERY 3 MONTHS:
Check the air filter condition and clean
if necessary (see below).
EVERY 6 MONTHS:
Same as 3 months plus clean conden-
sate tray with biocide suitable for polystyrene and clean fas-
cia.
EVERY 12 MONTHS:
Same as 6 months plus check all
electrical connections for security, check condensate pump
operation, and check the heating and cooling action to en-
sure proper operation.
FILTER REMOVAL AND CLEANING
1. Ensure the unit is isolated from the electrical sup-
ply and ensure that the fan(s) has come to a com-
plete stop.
2. Unclip the catches along the edge of each grille
and allow them to hang from the fascia by the
molded plastic hinges located along the opposite
edge.
3. If desired, the grilles can be removed from the fas-
cia completely.
4. The filter can now be easily slid out of the small
plastic retaining clips on the back of each grille.
5. Gently vacuum clean the filters on a medium power
vacuum.
6. Replace filters by reversing steps 2 to 4.
NOTE:
EMI recommends you keep at least one full
set of cassette air filters as spares.
FAN REMOVAL
CAUTION: Isolate from the electrical supply before
commencing work!!
1. Unclip the grille catches and remove the grille(s)
from the fascia.
2. For medium and large-sized units, remove the M6
screws from the black plastic inlet ring and pull the
inlet ring downwards from the condensate tray. For
small units only, remove the fascia by loosening
the four fascia mounting bolts and then slide the
fascia horizontally until it releases from the chas-
sis. Drain the condensate tray by removing the
small black rubber drain plug, catching the con-
densate (if any) in a suitable container. Remove
the self tapping screws securing the two insulated
metal condensate tray support channels and pull
the channels away from the condensate tray. Pull
the condensate tray downwards away from the chas-
sis.
3. Remove the electrical panel lid and disconnect the
fan connections from within the electrical panel.
4. Rotate the fan by hand until two M6 nuts are visible
through the fan mounting access holes. Remove
the two nuts.
5. Rotate the fan 90° until the remaining two nuts are
visible and remove while supporting the fan to pre-
vent it from falling. The fan can now be dropped
down from the unit.
CONDENSATE TRAY REMOVAL
1. Unclip the grille catches and remove the grille(s)
from the fascia.
2. Remove the fascia by loosening the fascia mount-
ing bolts and sliding the fascia horizontally until it
releases from the chassis.
If unit is micropro-
cessor controlled, remove display panel cable
from within the electrical panel before remov-
ing the fascia.
3. Remove electrical panel lid by unscrewing the single
self tapper and pull the lid horizontally away from
the control box.
4. On medium and large sized units, disconnect the
main wiring from the incoming terminal block and
disconnect the fan wires from their connection points
within the electrical panel. Separate any two part
connectors coming from the electrical panel.
5. Drain the condensate tray by removing the small
black rubber drain plug, catching any condensate
in a suitable container.
6. Remove the self tapping screws securing the two
insulated metal condensate tray support channels
and pull the channels away from the condensate
tray. Pull the condensate tray, complete with inlet
ring (on medium and large sized units only) down-
wards away from chassis.
CONDENSATE PUMP REMOVAL
1. Disconnect condensate pump and float switch wires
from inside electrical panel.
2. Unscrew the three M4 screws holding the pump
inspection plate in place and pull the pump and
mounting bracket away from the chassis while feed-
ing the pump wires between condensate tray and
insulation.
