Valeo Thermo E+ 120, Workshop Manual, Page: 50 / 65

803
Thermo E+ 120/200/320 8 Repairs
4. If applicable, bolt fuel lines down using a banjo bolt
and new gaskets, or slide on fuel lines and secure with
hose clamps.
5. If applicable, secure the combustion air intake line to
the heater.
6. Connect the temperature sensor plug (T).
7. Connect the plug for the circulating pump (P).
8. Connect the plug for power supply/control (C).
9. Connect the heater with the vehicle electrical system.
10. Bleed the fuel supply system (see
8.16.1 ).
Back to:
8.15 - Heater installation
8.3 Removal and installation of the
temperature sensors
Observe the risk of injuries due to increased coolant-
temperature.
Prior to removing the temperature sensors, the over-
pressure in the cooling system must be released (e.g.
by opening the cooler lid). Possibly let the heater
before cool down and have collecting container ready
for discharged coolant.
Removal
1. Disconnect the heater from the vehicle electrical sys-
tem ( Observe 5.2 !).
2. Disconnect the temperature sensor plug (3, Fig. 801 ).
ATTENTION:
The temperature sensors are positioned directly
in the coolant circuit. To prevent coolant from
escaping as far as possible, the coolant hoses are
to be closed with pinch-off pliers.
3. Unscrew and remove the temperature sensors (1, Fig.
802 ). Collect the escaping coolant.
Installation
1. Manually screw the temperature sensors (1, Fig. 802 )
into the coolant outlet (2).
2. Tighten the temperature sensors (1).
3. Connect the temperature sensor plug (3,
Fig. 801 ).
4. Connect the heater to the vehicle electrical system.
8.4 Hood removal and installation
Removing the hood provides access to the following
components for maintenance, inspection and repair
purposes:
• Fan
• Burner motor
• Control device
• Coupling
Removal
1. Loosen screws (2, Fig. 804 ).
2. Remove hood (1).
Back to:
8.5 - Burner motor removal
8.6 - Control device removal
Installation
1. Place hood (1, Fig. 804 ) in assembly position. Ensure
center alignment and proper fit.
2. Turn in the screws (2) and tighten them.
Back to:
8.5 - Burner motor installation
8.6 - Control device removal and installation
Risc of scalds!
Caution!
Fig. 802 Removal and Installation of the
temperature sensors
1
2
8 Nm ±0.5 Nm
1 Temperature sensors
2 Coolant outlet