Mondial Designs Limited HB095 2008, Owner'S Handbook Manual

equipment details

64

equipment details

65

Close the drain valve by activating the push 
button. The push button must engage in 
position (m) ‘closed’.
Truma can provide a heating element (part no. 
70070-01) as an accessory; it is inserted into 
FrostControl and warms it up to about 10° C 
when Combi is switched on. Then, after a short 
time, you can fill up the boiler regardless of the 
temperature in the installation compartment.

automatic opening of the drain valve

When the temperature is below approximately 
3° C at the drain valve, the drain valve will 
open automatically, the push button moves out 
(position n) and the water in the boiler drains 
out through the drainage muff (o).

manual opening of the drain valve

Turn the rotary switch by 180° until it engages, 
whereby the push button moves out (position 
n). The water in the boiler drains out through 
the drainage muff (o).
The FrostControl drainage muff (o) must be free 
of contamination (slush, ice, leaves, etc.) at 

all times so the water can drain out easily! No 

warranty given for frost damage!

taking into operation

Heating operation is basically possible without 
restriction with or without water content.
Check to make sure the cowl is unobstructed. 

Be sure to remove any covers that may 

be present. 
Turn on gas cylinder and open quick-acting 
valve in the gas supply line.

Summer operation (boiler operation only)
Move the rotary switch on the control panel to 

position (c – summer operation) 40° C or 60° C. 
The green (b) and yellow (g) LEDs light up.
After reaching the set water temperature (40° 
C or 60° C), the burner will switch off and the 
yellow LED (g) will be extinguished.

winter operation
Heating with water temperature monitoring

Set the rotary switch to the operational setting 
‘e’. Set the rotary switch (a) to the desired 
thermostat setting (1 – 5). The green LED 
(b) for operation is lit and simultaneously 
indicates the position of the selected room 
temperature. The yellow LED (g) indicates the 
water’s heat-up phase.
The unit automatically selects the required power 
level according to the temperature difference 

between the setting on the control panel and 
the current room temperature. Once the room 
temperature set on the control panel has been 
reached, the burner switches back to the lowest 
stage, and heats the water content to 60° C. The 
yellow LED (g) will be extinguished after the water 
temperature is reached.

Heating without water  
temperature monitoring

Set the rotary switch to the operational setting 
‘d’. Turn the rotary switch (a) to the desired 
thermostat setting (1 – 5). The green LED (b) for 
operation is lit and simultaneously indicates the 
position of the selected room temperature. The 
yellow LED (g – water’s heat-up phase) will be lit 
only when the water temperature is below 5° C!
The unit automatically selects the required 
power level according to the temperature 
difference between the setting on the control 
panel and the current room temperature.
After reaching the room temperature set on the 
control panel, the burner will switch off. The 
warm-air fan will continue to run at a low speed 
as long as the blow-out temperature (on the 
unit) is higher than 40° C.
If the boiler is filled, the water will 
automatically be heated at the same time. 
The water temperature is then dependent 
on the heating output being given off, and 

used, always drain the water contents if there 
is a risk of frost. There shall be no claims under 
guarantee for damage caused by frost!

Gas operation (heating and hot water)

a   Rotary switch for room temperature (1 – 5)

b    green LED lit ‘Operation’ green LED 

blinking ‘after-running’ is active in order to 
reduce the unit’s temperature

c    Summer operation  

(water temperature 40° C or 60° C)

d    Winter operation (heating without water 

temperature monitoring or with drained 
water system)

e    Winter operation (heating with water 

temperature monitoring)

f   Rotary ‘Off’ switch
g   Yellow LED lit ‘Boiler heat-up phase’
h   Red LED lit, red LED blinking ‘Failure’

the Leds are visible only when the unit is 
switched on.

room thermostat
i   Room temperature sensor

To measure the room temperature, an external 
room temperature sensor (i) is located in the 
vehicle. The location of the sensor is  
determined individually by the vehicle 
manufacturer, depending on the vehicle type; 
consult the operating instructions for your 
vehicle for further details.
The thermostat setting on the control panel (1 
– 5) must be determined individually depending 
on the heating requirement and the type of 
vehicle. For an average room temperature of 
about 23° C, we recommend a thermostat 
setting of about 4.

frost control (safety/drain valve)

FrostControl is a currentless safety/drain valve. 
When there is a danger of frost, it automatically 

drains the contents of the boiler through a 
drainage muff. If excessive pressure is present 
in the system, pressure will be automatically 
intermittently equalized through the pressure 
relief valve.

k   rotary switch position ‘Operation’ 
m   push button position ‘Closed’ 
n   push button position ‘Drain’ 
o    drainage muff (led outside through  

floor of vehicle)

closing the drain valve

Check if the rotary switch is set to ‘Operation’ 
(position k), meaning that it is parallel to the 
water connection and engaged.
It can be manually closed with the push button 
(position m) and then the boiler filled only when 
the temperature at the drain valve is above 
approximately 7° C.