OPERATING AND MAINTENANCE INSTRUCTIONS Small Compact ...
OPERATING AND MAINTENANCE INSTRUCTIONS Small Compact ...
OPERATING AND MAINTENANCE INSTRUCTIONS Small Compact ...
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DryingLine<br />
motan<br />
power to change<br />
<strong>OPERATING</strong> <strong>AND</strong><br />
<strong>MAINTENANCE</strong> <strong>INSTRUCTIONS</strong><br />
<strong>Small</strong> <strong>Compact</strong> Dryer MDE 40<br />
06 / 2004 040/04 748-00.0.81 V2.0
Details relating to the unit MDE 40<br />
2 Details relating to the unit<br />
2.1 Use in accordance with specifications<br />
The small compact drier MDE 40 is used exclusively to dry hygroscopic plastics granulates.<br />
2.2 Technical data<br />
2.2.1 <strong>Small</strong> compact drier<br />
Dry air volume ........................................................................................................................................ 40 m 3 /h<br />
Heating capacity of regeneration air heater, per cartridge ..................................................................... 1,0 kW<br />
Inductive load (motor) .......................................................................................................................... 0,25 kVA<br />
Ohmic load ...................................................................................................................................... max. 1,0 kW<br />
Operating voltage ............................................................................................................ 1 / 230 V/N/PE/50 Hz<br />
Power consumption ......................................................................................................................... approx. 6 A<br />
Max. connected load .............................................................................................................................. 1,3 kW<br />
Weight .......................................................................................................................................... approx. 60 kg<br />
Noise level ........................................................................................................................................... < 70 dBA<br />
Dimensions ...................................................................................................................................... see Fig. 2-1<br />
2.2.2 Drying bins<br />
Temperature range ........................................................................................................................ 60 to 140 °C<br />
Heating capacity, per bin ........................................................................................................................ 1,5 kW<br />
Operating voltage ............................................................................................................ 1 / 230 V/N/PE/50 Hz<br />
Connected load with 230 V, per bin ................................................................................................ approx. 7 A<br />
Max. connected load ............................................................................................................................ 1,55 kW<br />
Volume ................................................................................................................................. 15, 30 and 60 liters<br />
Number of drying bins, volume 15 and 30 liters ................................................................................. max. 2 off<br />
Number of drying bins, volume 60 liters ...................................................................................................... 1 off<br />
Weight (net)15/30/60 liters ................................................................................................. approx. 12/15/20 kg<br />
Dimensions ...................................................................................................................................... see Fig. 2-1<br />
Performance range (in kg/h at a residual moisture content of 0,02 %)<br />
Examples<br />
Material MDE 40/15<br />
max. kg/h*<br />
MDE 40/30<br />
max. kg/h*<br />
MDE 40/30<br />
max. kg/h*<br />
ABS 4,5 9,0 18,0<br />
PA 6 1,5 3,0 9,0<br />
PA 6.6 1,5 3,0 9,0<br />
PC 4,5 9,0 18,0<br />
PEEK 4,0 8,0 16,0<br />
PBTP 3,0 6,0 12,0<br />
LCP 3,0 6,0 12,0<br />
PPS 4,0 8,0 16,0<br />
PSU 4,0 8,0 16,0<br />
*dependent of bulk density, residence time and initial humidity<br />
2.1
Details relating to the unit MDE 40<br />
<strong>Small</strong> compact<br />
drier<br />
Drying bins<br />
15 liters<br />
30 liters<br />
60 liters<br />
Connecting flange<br />
* Connection for hopper loader prepared<br />
** Option<br />
Fig. 2-1<br />
Dimensions: <strong>Small</strong> compact drier and drying bins<br />
2.2
Details relating to the unit MDE 40<br />
Fig. 2-6<br />
Dimensions with drying bin on the machine<br />
2.5
Assembly MDE 40<br />
3 Assembly<br />
Return air<br />
12<br />
4 th step<br />
13<br />
Process air<br />
1<br />
2<br />
12<br />
3<br />
3 rd step<br />
Black<br />
Grey<br />
7<br />
4<br />
2<br />
5<br />
6<br />
7<br />
8<br />
9<br />
10<br />
1 st step<br />
2<br />
11<br />
2 nd step<br />
Fig. 3.1<br />
Assembly – one drying bin<br />
Item No.off Designation<br />
Item No.off Designation<br />
1 4 Hexagon screw M8x45 DIN 933 8 2 Spring washer B10 DIN 127<br />
2 10 Washer 8,4 DIN 125 9 2 Cheese-head screw M10x20 DIN 912<br />
3 1 Shut-off slide (option) 10 2 Caster with brake dia. 75<br />
4 1 Suction box 11 2 Hexagon screw M8x80 DIN 933<br />
5 4 Spring washer DIN 127 12 4 Hose clamp dia. 38-50<br />
6 4 Hexagon nut DIN 934 13 2 Hose<br />
7 4 Square stopper<br />
3.1
Assembly MDE 40<br />
12<br />
14<br />
12<br />
Return air<br />
13<br />
Process air<br />
14 18 17<br />
12<br />
17<br />
12 14 18<br />
17<br />
16<br />
15<br />
17<br />
Return air<br />
17<br />
See<br />
Fig. 3-1<br />
13<br />
12<br />
14<br />
12<br />
17<br />
Process air<br />
12<br />
Grey<br />
See<br />
Fig. 3-1<br />
12<br />
Black<br />
2<br />
16<br />
6<br />
2<br />
Fig. 3-2<br />
Assembly – two drying bins<br />
Item No.off Designation Item No.off Designation<br />
1 8 Hexagon screw M8x45 DIN 933 11 2 Hexagon screw M8x80 DIN 933<br />
2 22 Washer 8,4 DIN 125 12 8 Hose clamp dia. 38-50<br />
3 2 Shut-off slide 13 4 Hose<br />
4 2 Suction box 14 2 T piece dia. 45<br />
5 8 Spring washer DIN 127 15 2 Pipe clip dia. 45<br />
6 10 Hexagon nut DIN 934 16 2 Hexagon screw M8x130<br />
7 8 Square stopper 17 6 Pipe clamp coupling dia. 45, assembled<br />
8 4 Spring washer B10 DIN 127 18 2 Blind plug<br />
9 4 Cheese-head screw<br />
19 2 Hexagon screw M8x130<br />
M10x20 DIN 912<br />
10 4 Caster with brake dia. 75<br />
Bolt support frames<br />
Bolt drying bin on the support frame as per Fig. 3-1<br />
Fit and attach hoses<br />
3.2
Assembly MDE 40<br />
Move the small compact drier to the<br />
designated location and fix casters<br />
Mount drying bin onto the injection moulding<br />
machine, if necessary<br />
Check location of the screen insert<br />
(1, Fig. 3-3) in the drying bin (2). To do this:<br />
- open lid of the drying bin<br />
- carry out visual check<br />
- if necessary, put screen insert in the<br />
correct position<br />
If necessary, mount hopper loader onto the<br />
drying bin<br />
Operating Instructions for hopper loaders<br />
1<br />
2<br />
Fig. 3-3<br />
Screen insert in the drying bin<br />
Remove blanking plugs on the sockets<br />
Connect small compact drier and drying bin with the drying hoses and the hose clips as per Fig. 3-4<br />
Return air<br />
Process air<br />
Pipe socket:<br />
black<br />
Pipe socket:<br />
grey<br />
Multiple socket<br />
(option)<br />
Fig. 3-4<br />
Attaching the drying hoses<br />
Connect compact drier and drying bin to the power supply (230 V) and plug in drying bin at the multiple<br />
socket<br />
3.3
Function MDE 40<br />
4 Function<br />
4.1 Function principle<br />
The blower (2, Fig. 4-1) pulls moist air from the drying bin air via a preconnected filter (3). This air is mixed<br />
with a small part of ambient air. Via the reversing valve (1) the air mix is blown into the desiccant cartridge 2<br />
(5). At this point, the moisture is extracted from this air by means of a desiccant (absorption medium).<br />
1<br />
2<br />
3<br />
4<br />
5<br />
7<br />
6<br />
Fig. 4-1<br />
Function layout<br />
The dried air from the desiccant cartridge flows into the heater on the drying bin, where it is heated to the<br />
preselected temperature. A separate heater is allocated to each drying bin. This makes it possible to set a<br />
different temperature for each drying bin.<br />
The hot air flows uniformly distributed from the bottom to the top through the plastic granulate, heating and<br />
drying it. The hot and moist air is then aspirated once again by the blower.<br />
When the desiccant in the desiccant cartridges is saturated, it will not absorb any more moisture, and must<br />
be regenerated. This regeneration process operates in parallel with the drying process in the desiccant<br />
cartridge 1.<br />
A part of the dried air from desiccant cartridge 2 flows through desiccant cartridge 1, where it is heated by<br />
the regeneration heater (7) and dries the saturated desiccant. Then, the air flows through the reversing valve<br />
into the open air.<br />
After a preset time the reversing valve switches over. The moist air arrives in desiccant cartridge 1 where it<br />
is dried. The regeneration heater (6) is activated and the desiccant in the desiccant cartridge 2 is<br />
regenerated.<br />
4.1
Operation MDE 40<br />
5 Operation<br />
5.1 Switch-on<br />
The prerequisites for trouble-free operation:<br />
<strong>Small</strong> compact dryer and drying bins are plugged in and connected with the air hoses<br />
Hopper loader on the drying bin is ready for operation or<br />
in case of manual filling: Dummy cover on the drying bin is closed<br />
When granulate with a health risk is dried, the regenerating<br />
air has to be carried off!<br />
Safety instructions of the manufacturer have to be<br />
observed!<br />
During operation with maximum<br />
temperature, some parts of the system<br />
might become hot.<br />
Don't touch the system! Risk of injury!<br />
5.1.1 Displays and settings at the drying bin control<br />
1<br />
2<br />
3<br />
4<br />
Fig. 5-1<br />
Dixell control<br />
Item Designation Function / Display / Operation<br />
1 LED Lights up: heater switched on<br />
2 LED Flashes: when drying temperature is displayed while button 4 is pressed<br />
3 Arrow For modifying the values<br />
Displaying the drying temperature press briefly<br />
4 SET<br />
Modifying the drying temperature press approx. 2 s<br />
Confirming the input<br />
press briefly<br />
5.1
Operation MDE 40<br />
5.1.2 Displaying/modifying the drying temperature<br />
Switch on the drying bin control at switch<br />
(4, Fig. 5-2)<br />
The display always shows the current actual<br />
temperature.<br />
1<br />
2<br />
Displaying the drying temperature:<br />
Briefly press "SET" (3)<br />
display is shown for 5 seconds<br />
3<br />
Modifying the drying temperature:<br />
Keep "SET" (3) pressed for approx. 2 seconds<br />
LEDs (1) flash<br />
Adjust the drying temperature with the arrow keys<br />
(2) or (e.g. 90 °C)<br />
Briefly press "SET"<br />
the value is accepted<br />
4<br />
The actual temperature is displayed again after 5<br />
seconds.<br />
Fig. 5-2<br />
Adjusting the drying temperature<br />
NOTE<br />
In case of faulty operation:<br />
Wait 5 seconds and the display will automatically show the actual<br />
temperature.<br />
5.2
Operation MDE 40<br />
5.1.3 Switching on the small compact dryer<br />
1<br />
2<br />
3<br />
Fig. 5-3<br />
Operating panel on the small compact dryer<br />
Item Designation Function / Display<br />
1 Main switch ON-OFF / EMERGENCY-OFF<br />
2 ON-OFF illuminated switch Switches small compact dryer on/off, lights up white when "ON"<br />
3 Alarm display Lights up red on malfunction<br />
Switch main switch to position "I" (1, Fig. 5-3) and<br />
put illuminated ON-OFF switch (2, Fig. 5-3) to position "I"<br />
illuminated switch lights up white<br />
the small compact dryer is switched on<br />
No further operating procedures are required. The entire granulate drying process operates automatically.<br />
When the heater at the drying bin is heating, the LED (1, Fig. 5-1) lights up.<br />
5.2 Switch-off<br />
Switch off the drying bin control with switch (4, Fig. 5-2)<br />
Put illuminated switch (2, Fig. 5-3) to "O" position<br />
White light (2, Fig. 5-3) goes out<br />
the small compact dryer and drying bins are switched off<br />
NOTE<br />
The blower runs on for approx. 20 seconds.<br />
For short operation interrupts (< 20 seconds) the drying bin control<br />
does not have to be switched off.<br />
5.3 Manual filling of the drying bin<br />
CAUTION<br />
While filling the drying bin with granulate take care that the cover of the<br />
drying bin will not close inadvertently.<br />
Risk of injury!<br />
5.3
Operation MDE 40<br />
5.4 Trouble-shooting<br />
Always disconnect the mains plug of the small compact<br />
dryer and the drying bin heater from the power supply<br />
before carrying out any fault rectifications.<br />
Secure EMERGENCY-OFF switch at the small compact dryer<br />
against unauthorised reconnection.<br />
Faults may only be rectified by authorised, trained and<br />
properly instructed specialists.<br />
At malfunction, the alarm display (3, Fig. 5-3) on the operating panel lights up.<br />
The faults listed are examples only, and are not to be regarded as exhaustive.<br />
Fault Cause Rectification<br />
lluminated "ON-OFF" <strong>Small</strong> compact dryer is not plugged in<br />
Plug in small compact dryer<br />
switch (2, Fig. 5-3)<br />
does not light up EMERGENCY-OFF switch not activated Activate EMERGENCY-OFF<br />
switch<br />
Illuminated switch (2, Fig. 5-3) is not switched on Switch on illuminated switch<br />
Power supply failure<br />
Check power supply<br />
Lamp defective<br />
Change lamp<br />
Fuse 12 F1 (9, Fig. 7-1) defective<br />
Change fuse 12 F1<br />
Blower is not Fuse 11 F3 (8, Fig. 7-1) defective Change fuse 11 F3<br />
operating Blower defective Change blower<br />
Alarm display Air pressure monitor (11, Fig. 7-2) defective Change<br />
(3, Fig. 5-3) lights up Blower is not operating Change fuse 11 F3<br />
Hose loose or leaking<br />
Check, change if necessary<br />
Air flow too weak<br />
Check hoses and connection<br />
for leaks<br />
Temperature limit switch for desiccant cartridge 1 Reset 6.3.1<br />
has switched off<br />
Temperature limit switch for desiccant cartridge 2 Reset 6.3.1<br />
has switched off<br />
Temperature limit switch defective<br />
Change<br />
Sensor or capillary tube of the temperature limit Change<br />
switch defective<br />
Wrong position of valve flap Adjust valve flap 6.3.6<br />
Temperature at<br />
drying bin does not<br />
reach set temperature<br />
Air flow too weak<br />
Differential pressure monitor (5, Fig. 7-3)<br />
defective<br />
Check hoses and<br />
connections for leaks<br />
Check 6.3.5<br />
change if necessary<br />
Safety thermostat has tripped Reset 6.3.4<br />
Heater defective<br />
Measure resistance,<br />
change if necessary<br />
5.4
Maintenance and repair MDE 40<br />
6 Maintenance and repair<br />
6.1 Maintenance intervals<br />
Prior to any repair work: Allow the drying system to cool<br />
down.<br />
All works concerning electrical installation and repair may<br />
only be carried out by appropriately trained electric<br />
engineers.<br />
Prior to electrical installation works:<br />
Disconnect the unit from the power supply and secure<br />
against inadvertent reconnection.<br />
Recommendation: Wear safety glasses and nose/mouth<br />
guard when carrying out dusty works.<br />
Weekly<br />
No. Test point / Designation Action Set value / Remarks<br />
1.1 Dry air filter Clean See section 6.2.1<br />
Clean more frequently in the<br />
event of high dust built-up<br />
1.2 Screen at air outlet Check for cleanliness,<br />
clean if necessary<br />
Clean more frequently in the<br />
event of high dust built-up<br />
1.1<br />
1.2<br />
Fig. 6-1<br />
Weekly maintenance works<br />
6.1
Maintenance and repair MDE 40<br />
Annually<br />
No. Test point / Designation Action Set value / Remarks<br />
2.1 Dry air filter Change See section 6.2.1<br />
2.2 Regeneration air heater Measure resistance Approx. 52 ,<br />
see section 6.2.2<br />
Triennially<br />
No. Test point / Designation Action Set value / Remarks<br />
3.1 Desiccant Change See section 6.2.3<br />
2.1<br />
3.1<br />
2.2<br />
Fig. 6-2<br />
Annual and triennial maintenance intervals<br />
6.2
Maintenance and repair MDE 40<br />
6.2 Servicing<br />
6.2.1 Cleaning the dry air filter<br />
Switch off dryer<br />
Lock main switch to secure against switch-on<br />
Unplug mains connection<br />
Disassemble dry air filter<br />
Recommendation:<br />
Wear safety glasses<br />
and nose/mouth guard.<br />
Blow dry air filter through with compressed air,<br />
from the inside to the outside<br />
see Fig. 6-3<br />
CAUTION<br />
The air filter housing must not be blown out<br />
with compressed air, since this could cause<br />
contamination of the desiccant.<br />
Disposal of the dry air filter as special refuse in<br />
accordance with the local offical regulations.<br />
Fig. 6-3<br />
Cleaning the dry air filter<br />
6.2.2 Checking the resistance of the regeneration air heaters<br />
Works at the electrical system may only be carried out by<br />
authorised and trained specialists.<br />
Power Voltage Resistance<br />
1,0 kW 230 V Approx. 52 <br />
Switch off small compact dryer<br />
Lock main switch to secure against switch-on<br />
Disconnect mains connection<br />
Check resistance of the regeneration air<br />
heaters on the terminal strip (Fig. 6-4):<br />
Measure resistance between:<br />
Terminal -X11=4 and terminal -X11=14<br />
Terminal -X11=6 and terminal -X11=16<br />
Fig. 6-4<br />
Check resistance<br />
6.3
Maintenance and repair MDE 40<br />
6.2.3 Changing the desiccant<br />
Remove clamping ring (1, Fig. 6-5) with<br />
silicone profile ring<br />
Remove cover<br />
Remove silicone (2)<br />
Remove screen plate (3)<br />
Remove desiccant (4) completely of the<br />
desiccant cartridge with a vacuum cleaner<br />
Remove silicone completely<br />
Reassambly:<br />
Fill in desiccant (3 kg per desiccant cartridge)<br />
Put screen plate in place<br />
Secure screen plate on three points at the<br />
edge with silicone<br />
Restore silicone profile ring<br />
Put cover in place and secure with the<br />
clamping ring<br />
1<br />
2<br />
3<br />
4<br />
Fig. 6-5<br />
Changing the desiccant<br />
6.3 Maintenance and repair<br />
6.3.1 Resetting the temperature limit switch<br />
Open door of the small compact dryer<br />
Resetting the temperature limit switch for<br />
desiccant cartridge 1:<br />
Press button at -12S5 (1, Fig. 6-6)<br />
Reset temperature limit switch for desiccant<br />
cartridge 2:<br />
Press button at 12S6 (2)<br />
1<br />
2<br />
Fig. 6-6<br />
Resetting the temperature<br />
limit switch<br />
6.4
Maintenance and repair MDE 40<br />
6.3.2 Changing the temperature sensor at the drying bin<br />
NOTE<br />
The temperature sensor (1, Fig. 6-7) must<br />
be fitted in a way that the slot lies in<br />
parallel to the air flow direction<br />
Fig. 6-7.<br />
1<br />
Air flow<br />
direction<br />
Fig. 6-7<br />
Fitting position of the<br />
temperature sensor<br />
6.3.3 Checking the air pressure monitor<br />
Remove hose (2, Fig. 6-8) at the pressure<br />
monitor (1)<br />
Air pressure monitor alright if<br />
<br />
<br />
alarm display lights up<br />
regeneration air heater switches off<br />
(in case the regeneration air heater is<br />
switched on)<br />
1<br />
2<br />
Fig. 6-8<br />
Checking the air pressure monitor<br />
6.5
Maintenance and repair MDE 40<br />
6.3.4 Resetting the safety thermostat<br />
Remove cap (1, Fig. 6-9)<br />
Press reset button<br />
6.3.5 Checking the differential pressure monitor<br />
The dryer is switched on.<br />
Remove both hoses (2, Fig. 6-9) at the differential pressure monitor (3)<br />
Blow gently into the hose;<br />
the differential pressure monitor is alright if:<br />
temperature is still rising<br />
LED "out" (1, Fig. 6-10) lights up<br />
1<br />
1<br />
2<br />
3<br />
Fig. 6-9<br />
Checking the differential pressure<br />
monitor<br />
Fig. 6-10<br />
Checking the differential<br />
pressure monitor<br />
6.3.6 Changing the valve<br />
Disconnect the small compact dryer from the<br />
power supply<br />
Mark the four hoses (1, Fig. 6-11) and remove<br />
them<br />
Remove the cover at the valve (3) and<br />
disconnect the cable<br />
Unscrew the two nuts (2) and remove the<br />
valve in forward direction<br />
3<br />
1<br />
1<br />
2<br />
1 2<br />
1<br />
1<br />
Assembly is carried out in reverse order.<br />
Fig. 6-11<br />
Changing the valve<br />
6.6
Spare parts MDE 40<br />
7 Spare parts<br />
Spare parts for electrical items see parts list at the circuit diagrams.<br />
1<br />
13<br />
12<br />
2<br />
3<br />
4<br />
11<br />
10<br />
5<br />
9<br />
6<br />
4<br />
7<br />
8 8<br />
Fig. 7-1 MDE 40<br />
Spare parts Fig. 7-1<br />
1 2 3 4 5<br />
Item No. off Designation / Type Part no. Remarks<br />
1 ar* Spiral hose dia. 45 mm 4072410 Black<br />
2 ar* Hose clip dia. 45 mm 1121860<br />
3 ar* Silicone hose dia. 45 mm 4070660 Red<br />
4 1 Profile clamp 4080580<br />
1 Silicone profile ring 4080570<br />
5 3 kg Molecular sieve (3 kg per desiccant cartridge) 1422200 Order also item 4<br />
6 1 Thermostat 4072500<br />
7 1 Heater 1,0 kW 4083130 Order also item 4<br />
8 4 Castor with lock 4072450<br />
9 1 Blower 5090060<br />
10 1 Differential pressure monitor 4065450<br />
11 1 Valve 5042420<br />
12 1 Dry air filter 4066330 Filter cartridge<br />
ar* Silicone seal 2x10 4060830<br />
13 1 Power supply, multiple socket 5013240 Option<br />
ar* = as required<br />
7.1
Spare parts MDE 40<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
10<br />
7<br />
8<br />
9<br />
Fig. 7-2<br />
Drying bin<br />
Spare parts Fig. 7-2<br />
1 2 3 4<br />
Item No. off Designation / Type 15, 30 and 60 litres<br />
1 ar* Silicone seal 2x10 4060830<br />
2 1 Heating element 1,5 kW 4072430<br />
1 Heating element 2 kW 3056930<br />
3 1 Temperature limiter 4074480<br />
4 1 Seal 4072420<br />
5 1 Differential pressure monitor 4065450<br />
6 ar* Silicone hose 4067530<br />
7 ar* Silicone spiral hose dia. 45 4070660<br />
8 ar* Hose clip dia. 45 mm 1121860<br />
9 1 Temperature sensor 4072230<br />
10 1 Sight glass 4082800<br />
ar* = as required<br />
7.2
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1
Option MDE 40<br />
A<br />
After cooler<br />
The after cooler is required for drying with very<br />
high temperatures (approx. > 120 °C).<br />
The cooler the return air temperature, the better<br />
the air absorption of the return air, i.e. efficiency<br />
of the drying system increases.<br />
The return air from the drying bins passes<br />
through the heat exchanger (1, Fig. A-1).<br />
1<br />
2<br />
The heat exchanger is cooled by the cooling air<br />
of the filter fan (2) during the entire time of<br />
operation.<br />
Fig. A-1<br />
After cooler<br />
Maintenance<br />
Clean the after cooler every three months.<br />
In case very dusty material is dried, clean the after cooler more often.<br />
Spare parts<br />
Spare parts<br />
Item No. off Designation Part no.<br />
- 1 After cooler, complete 501 459<br />
1 1 Heat exchanger 407 573<br />
2 1 Filter fan 403 652<br />
A.1