PREVENTIVE MAINTENANCE OF THE WEAR PARTS
Once the maintenance service has been completed, it is advisable to check wear parts of the XRGI
®
system components and, if necessary,
to replace components in order to ensure a long service life and safe operation of the XRGI
®
system.
STEP 1 – Q-HEAT DISTRIBUTOR
Q40/50-Heat Distributor
Q60-Heat Distributor
Q20-Heat Distributor
Q80-Heat Distributor
POS
COMPONENT
DESCRIPTION
1
Plate heat exchanger
While the engine is running, inspect the function of the plate heat exchanger on the iQ-
Control Panel display.
2
Pumps
Inspect all pumps for correct function and noise.
3
ESBE valve
Inspect the ESBE valves for movement, etc.
4
Hoses
Inspect the hoses for leak-tightness.
5
Expansion vessel
Check the pressure/fill level of the expansion vessel.
Check the expansion vessel for leak-tightness.
6
Temperature sensor
Check the sensor values of the temperature sensors of the Q-Heat Distributor in the iQ-
Control Panel display.
Verification of the temperatures:
1.
The XRGI
®
system is started and left running for a minimum of 30 minutes for all
temperatures to be stabilized.
2.
The XRGI
®
system is stopped for a minimum of 15 minutes. In this period, the tem-
perature sensors are automatically calibrated to obtain the highest possible preci-
sion.
3.
The XRGI
®
system is once again started and after 5 minutes, the below relations are
verified.
TMV is larger than TLV
TMV is larger than TMK
TMK is larger than TLK
TLV is larger than TLK
Below list shows the estimated stabilized temperatures for an XRGI
®
system configured
to output it´s maximum effect.
XRGI
®
system
Temperature sensor
XRGI
®
6
XRGI
®
9
XRGI
®
15
XRGI
®
20
TMV
87.0 °C
87.0 °C
92.0 °C
92.0 °C
TMK
82.1 °C
79.3 °C
85.3 °C
83.1 °C
TLV
80.8 °C
77.3 °C
86.4 °C
84.6 °C
TLK
76.7 °C
70.6 °C
80.3 °C
76.5 °C
8.
PREVENTIVE MAINTENANCE OF WEAR PARTS
Fig. 8.04
Fig. 8.03
Fig. 8.02
Fig. 8.01
45
