Valeo Thermo H 160, Руководство по ремонту

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811
Thermo H plus 8 Repairs
8.4 Heat exchanger removal/installation
Removal
1. Establish voltage-free state of the heater and secure
it for duration of the work ( Observe 1.6.3 ! ).
2. Remove heater (see 8.5 ).
3. Remove small distribution board (see 8.2.4 ).
4. Remove burner (see 8.3.1 ).
5. Remove combustion chamber (see 8.3.4 ).
For the removal of heating cartridges (20, Fig. 805 ) or
screw plugs (21):
6. Screw the threaded pins (9, Fig. 811 ) out.
For the replacement of the heat exchanger:
7. Remove the temperature guards (HV heater), refer to
8.2.1 .
8. Remove the temperature sensor (D heater), refer to
8.3.2 .
9. Remove the screws (24, Fig. 805 ).
10. Remove the stud bolts (18), discard gasket rings (13).
11. Remove the screw-in socket (8, Fig. 801 ).
12. Remove the screw plug (7, Fig. 809 ).
13. Remove the heating cartridges (20, Fig. 805 ) and
screw plugs (21), refer to 8.2.5 .
14. Remove the vibration damper (4, Fig. 811 ).
Installation
NOTE:
After installation of the heating cartridges (20, Fig. 805 ) or
screw plugs (21) proceed with step 9.
1. Install vibration damper (4, Fig. 811 ) and tighten nuts.
2. Install heating cartridges (20, Fig. 805 ) or screw plugs
(21), refer to 8.2.5 .
3. Screw the plug screw (7, Fig. 809 ) in and tighten it.
4. Install the screw-in socket (8, Fig. 801 ) and tighten it.
5. Install the stud bolts (18) using new gasket rings (13)
and tighten them.
6. Install screws (24, Fig. 805 ) with washers (15).
7. Install temperature sensor (D heater), refer to 8.3.2 .
8. Install temperature guards (HV heater), refer to 8.2.1 .
9. Install threaded pins (9, Fig. 811 ).
10. Install combustion chamber (see 8.3.4 ).
11. Install small distribution board (see 8.2.4 ).
12. Install heater (see 8.5 ).
8.5 Heater removal/installation
The heat exchanger of the heater can be very hot. If
necessary, let it cool down.
Risk of injuries if coolant temperature is increased.
ATTENTION:
The fuel supply system must be subsequently bleed
(see
8.6.1
).
The coolant circuit must be subsequently bleed (see
8.6.2
).
Removal
1. Establish voltage-free state of the heater and secure
it for duration of the work (
Observe
1.6.3
!
).
2. Disconnect all supply cables from vehicle electrical
system.
– If necessary disconnect HV DC wiring harness
from HV heater, see 8.2.6 .
– If necessary disconnect HV AC wiring harness
from HV heater, see 8.2.7 .
– If necessary disconnect LV DC control wiring
harness from HV heater, see 8.2.8 .
– Disconnect heater wiring harness from D heater.
Risk of burns!
Caution!
Risk of scalds! Caution!