Fault Finding; Technical Data - Truma UltraRapid Operating Instructions Manual

Fault finding

Gas operation
Symptom
When switching on, the heat-
er does not operate.
Check the power supply (operation voltage min. 10.5 V).
Check the Truma UltraRapid HWS fuse (refer to maintenance
"Fuses").
When switching on, the heat-
er does not operate and the
red lamp lights up
after approx. 30 secs.
Remove cowl cover and / or clear any obstruction.
Check gas valves and gas cylinder.
To unlock (and purge air), switch off the appliance, wait
5 minutes, and switch on again.
Heater operates for a pro-
longed time and then
the red lamp lights up.
Check water level, refill if required (close drain valve).
To unlock, switch off the appliance, wait 5 minutes, and
switch on again.
Electrical operation
Symptom
When switching on, the
heater does not operate.
Connect the caravan to the site supply and / or check residual
current circuit breaker.
Check water level, refill if required (close drain valve).
The electrical heating element is fitted with an excess tem-
perature cut-out. In the event of a fault, switch off at the
control panel, wait 10 minutes, then switch on again.
Water supply
Symptom
Water drips from the
P&T safety valve.
Check water pressure (max. 400 kPa), use a pressure reduc-
er when connected to central water supply.
Allow the appliance to cool and then slowly raise the test
lever (Fig. 2a – 4a) to flush the water system and attempt to
force dirt or foreign matter out of the P&T safety valve seat.
Replace P&T safety valve. This must be performed only by a
certified service technician.
When opening the cold
water tap, hot water
comes out.
Fit a non-return valve in the cold water supply (refer to instal-
lation instructions "Water connection").
If fault persists, please contact the nearest Dometic Service.
6
Cause
– No 12 V supply voltage.
– Cowl cover fitted.
– Air in the gas supply.
– No gas supply.
– Incorrect gas pressure.
– Excess temperature
thermostat has responded.
Cause
– No 240 V supply voltage.
– Excess temperature
thermostat has responded.
Cause
– Water pressure to high.
– Lime or dirt under the
P&T safety valve seat.
– Hot water flows back
through the cold water
supply.

Technical data

Protection type / protection class
IP21 / class I
Water capacity
14 litres
Rated water pressure
400 kPa
Maximum working water pressure / P&T safety valve setting
500 kPa – 99 °C – 10 kW
Type of gas
LPG (Propane)
Test point pressure
2.75 kPa
Nominal heat input
5.0 MJ/h (H )
S
Nominal heat output
1.2 kW
Gas consumption
96 g/h
Injector size
0.70 mm
Heating up time from approx. 20 °C up to approx. 65 °C
(14 litres)
Gas operation: approx. 45 min.
Electrical operation: approx. 40 min.
Gas and electrical operation: approx. 28 min.
Power consumption 12 V
Ignition: 0.160 A
Heating up: 0.12 A
Stand-by: 0.05 A
Power consumption 230 V ~ / 240 V ~
Heating up: 5.7 A / 5.9 A, 1300 W / 1415 W
Weight (empty) 14 litres
BGA:
BGA with peripheral devices:
BGEA:
BGEA with peripheral devices:
Water pressure reducer
Flow range water: 0 – 10 litres/min.
Maximum inlet pressure:
Maximum outlet pressure: 200 kPa
The right to make technical modifications is reserved!
Dimensions
129
Fig. 7
Minimum 120
Fig. 8
(All dimensions in mm)
7.7 kg
8.6 kg
8.1 kg
9.1 kg
700 kPa
18 30
109
383
347
water
connections
PTR Valve cowl
connection
electronic gas connection
with test point