Renault 2000 Espace Technical Note page 48

TECHNICAL SPECIFICATIONS
The heater is fitted with an igniter appropriate for the
vehicle fuel.
It operates in two power levels:
– 1˚) Low speed:
Power: 1600 Watts,
Fuel consumption: 0.2 l/hour.
– 2˚) High speed:
Power: 3300 Watts.
Fuel consumption: 0.4 l/hour.
When the engine is started, the heater is operated at
high speed; circulation of the coolant inside the
exchanger is ensured by the vehicle coolant circuit.
A Temperature (˚C)
B Minutes
– Range a:
High speed.
– Range b:
Low speed.
– Range c:
Heater stop.
Coolant temperature measured inside the heater.
HEATING
Additional heating
SAFETY SYSTEMS
The system is fitted with several safety features; it cuts
out:
– if the difference in coolant temperature read by the
two internal heater sensors reaches 15 ˚C,
– if the coolant temperature reaches 120 ˚C (different
safety features than reading 85˚),
– if the flame detector does not detect combustion,
(notably the heater fuel pump),
– if the battery voltage is greater than 16 volts or less
than 10 volts.
Other safety devices:
– when the heater does not light 90 seconds after the
supply of fuel is started, the starting procedure is
repeated. If, during the following 90 seconds the
system still does not start, the emergency stop is
engaged.
– if the flame extinguishes during operation the starting
procedure is repeated. If the heater does not start up
in the following 90 seconds, the emergency stop is
engaged.
– in the event of overheating (lack of coolant,
incorrectly drained cooling circuit...), the overheating
switch reacts, the fuel supply is stopped and the
emergency stop is engaged. The heater can be
restarted after the source of overheating has been
eliminated and the heater has cooled sufficiently.
SWITCHING OFF
To temporarily disconnect the heater (operation with
engine running in an enclosed space, noises when
cold,...), disconnect the connector (15) (page 61-2).
If possible, check that the heater engages after it is
reconnected.
The main F49 (70 A) fuse on the engine
intercommunication unit supplies the additional
heating system.
61-3
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