Alde Compact 3020 HE User manual

Operating Instructions – Alde Compact 3020 HE
Alde Compact 3020 HE
Certied for use in recreational vehicles
© Alde.
All Rights Reserved
2531

3

4
2
CONSUMER SAFETY INFORMATION
Your safety and the safety of others are very important.
There are many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
Recognize this symbol as an indication of Important Safety Information!
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER,” “WARNING,” “CAUTION,” or
“NOTICE.”
These words mean:
DANGER
FARA
DANGER
GEFAHR
FARE
VAARA
PELIGRO
PERICOLO
GEVAAR
An imminently hazardous
situation that will result in death or serious injury.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
A potentially hazardous
situation that can result in death or serious injury
and/or damage to property.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
A potentially hazardous
situation that may result in minor or moderate injury.
NOTICE
Attention is called to observe a
specied procedure or maintain a specic condition.
SAFETY WARNINGS
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
FIRE/EXPLOSION HAZARD
• Do not use the LPG operation on the heating system while refueling or when lling a xed LPG tank.
• Do not use any type of open flame when checking for gas leaks.
• Use genuine Alde parts only.
• LPG tanks must be lled by a qualied gas supplier only.
• Use with LPG only.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
CARBON MONOXIDE POISONING
This heating system can produce dangerous carbon monoxide (CO) gas when using the LPG operation if it is not
installed and used properly.
To help avoid the risk of asphyxiation, only use the LPG operation on the heating system outdoors to help dissipate
the exhaust gases.
Never use in enclosed spaces or breathe in the exhaust gases.
Make sure that the exhaust gas outlet is placed outside, e.g. never under the recreational vehicle’s awning.
• Do not use the heating system without adequate ventilation.
• Keep the air inlet and exhaust gas outlet unobstructed.
When cleaning the vehicle, never spray water into the heating, e.g. if using a high-pressure cleaner, do not spray
directly into the heating’s exhaust gas outlet.
3
GB
NOTICE
• There may be a variation between the temperature delivered from the heating system and the temperature at the
tap due to water conditions or the length of the pipe to the heating system.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
• Avoid damage to the heating system and voiding your warranty.
• No alterations! Any alteration to the heating system or its controls can cause unforeseen serious
hazards and, in addition, will void the warranty.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 ºC can cause serious scalding injuries and in extreme cases even death.
The heating can deliver hot water at temperatures above 85 °C.
• For safe operation, always use a mixing valve set at a temperature no higher than 48 °C.
• Always check the water temperature before entering a shower or bath.
• Hot water can be dangerous, especially for infants, children, the elderly or the inrm.
How long can skin be exposed to hot water?
Temperature
°C Time before skin becomes scalded
70 Extreme danger! < 1 second
66 Very dangerous! 1 – 5 seconds
60 Dangerous! 10 seconds
54 30 seconds
52 Warning! 2 minutes
49 5 – 10 minutes
38 Safe Safe bathing
Temperature
Source: Moritz, A.R. / Herriques, F.C.: Studies of thermal injuries: the relative
importance of time and surface temperature in causation of Cutaneous burns
A. J. Pathol 1947; 23: 695 - 720.
• Before using the hot water tap or using the shower, allow the hot water to run until the water temperature
is safe and stabilized.
• Test the temperature of the water before placing a child in the bath or shower.
• Do not leave a child or an inrm person in the bath unsupervised.

5
GB
2
CONSUMER SAFETY INFORMATION
Your safety and the safety of others are very important.
There are many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
Recognize this symbol as an indication of Important Safety Information!
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER,” “WARNING,” “CAUTION,” or
“NOTICE.”
These words mean:
DANGER
FARA
DANGER
GEFAHR
FARE
VAARA
PELIGRO
PERICOLO
GEVAAR
An imminently hazardous
situation that will result in death or serious injury.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
A potentially hazardous
situation that can result in death or serious injury
and/or damage to property.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
A potentially hazardous
situation that may result in minor or moderate injury.
NOTICE
Attention is called to observe a
specied procedure or maintain a specic condition.
SAFETY WARNINGS
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
FIRE/EXPLOSION HAZARD
• Do not use the LPG operation on the heating system while refueling or when lling a xed LPG tank.
• Do not use any type of open flame when checking for gas leaks.
• Use genuine Alde parts only.
• LPG tanks must be lled by a qualied gas supplier only.
• Use with LPG only.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
CARBON MONOXIDE POISONING
This heating system can produce dangerous carbon monoxide (CO) gas when using the LPG operation if it is not
installed and used properly.
To help avoid the risk of asphyxiation, only use the LPG operation on the heating system outdoors to help dissipate
the exhaust gases.
Never use in enclosed spaces or breathe in the exhaust gases.
Make sure that the exhaust gas outlet is placed outside, e.g. never under the recreational vehicle’s awning.
• Do not use the heating system without adequate ventilation.
•Keep the air inlet and exhaust gas outlet unobstructed.
When cleaning the vehicle, never spray water into the heating, e.g. if using a high-pressure cleaner, do not spray
directly into the heating’s exhaust gas outlet.
3
GB
NOTICE
• There may be a variation between the temperature delivered from the heating system and the temperature at the
tap due to water conditions or the length of the pipe to the heating system.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
• Avoid damage to the heating system and voiding your warranty.
• No alterations! Any alteration to the heating system or its controls can cause unforeseen serious
hazards and, in addition, will void the warranty.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 ºC can cause serious scalding injuries and in extreme cases even death.
The heating can deliver hot water at temperatures above 85 °C.
• For safe operation, always use a mixing valve set at a temperature no higher than 48 °C.
• Always check the water temperature before entering a shower or bath.
• Hot water can be dangerous, especially for infants, children, the elderly or the inrm.
How long can skin be exposed to hot water?
Temperature
°C Time before skin becomes scalded
70 Extreme danger! < 1 second
66 Very dangerous! 1 – 5 seconds
60 Dangerous! 10 seconds
54 30 seconds
52 Warning! 2 minutes
49 5 – 10 minutes
38 Safe Safe bathing
Temperature
Source: Moritz, A.R. / Herriques, F.C.: Studies of thermal injuries: the relative
importance of time and surface temperature in causation of Cutaneous burns
A. J. Pathol 1947; 23: 695 - 720.
• Before using the hot water tap or using the shower, allow the hot water to run until the water temperature
is safe and stabilized.
• Test the temperature of the water before placing a child in the bath or shower.
• Do not leave a child or an inrm person in the bath unsupervised.

6
TABLE OF CONTENTS
INTENDED USE 7
PROHIBITED USE 7
SAFETY FEATURES 7
TECHNICAL DATA 8
1. OPERATING INSTRUCTIONS FOR ALDE COMPACT 3020 9
1:1 CHECKING THE HEATING SYSTEM BEFORE USE 9
1:2 THE FIRST TIME THE HEATING SYSTEM IS STARTED 9
1:3 DESCRIPTION OF THE HEATING SYSTEM 10
1:4 HEATING WITH LPG 11
1:5 HEATING WITH ELECTRICITY 12
1:6 THE PRINCIPLE OF CONVECTION 12
1:7 USING THE HEATING SYSTEM 13
1:8 STORAGE AND WINTERIZATION 15
1:9 MAINTAINING THE HEATING SYSTEM 15
1:10 LPG CONNECTIONS AND HOSES 15
1:11 GLYCOL HEATING FLUID 16
1:12 FILLING THE HEATING SYSTEM WITH GLYCOL FLUID 16
1:13 BLEEDING THE SYSTEM 17
1:14 IMPORTANT INFORMATION 18
2. OPERATING INSTRUCTIONS FOR CONTROL PANEL 19
2:1 TURNING THE BOILER ON AND OFF 19
2:2 STANDBY 19
2:3 SETTINGS MENU 19
2:4 SET THE DESIRED TEMPERATURE 20
2:5 DOMESTIC HOT WATER 20
2:6 HEATING WITH ELECTRICITY 21
2:7 HEATING WITH GAS 21
2:8 *FULLY AUTOMATIC CLIMATE CONTROL (ACC) 21
2:9 ACTIVATED FUNCTIONS A 22
2:10 TOOLS MENU 23
2:11 TOOLS MENU – FUNCTIONS 23
2:12 SERVICE MENU 26
2:13 ERROR MESSAGES 27
2:14 RESETTING 27
2:15 ACTIVATION OF INSTALLED FUNCTIONS 28
2:16 CABLE CONNECTION COMPACT 3020 HE AND CONTROL PANEL 3020 29
3. CARE AND MAINTENANCE 30
4. IMPORTANT INFORMATION 31
5. TROUBLESHOOTING 32
6. WARRANTY 34
7. HEALTH DECLARATION 36
8. DECLARATION OF CONFORMITY 37
5
GB
INTENDED USE
The Alde Compact 3020 HE heating system consist of a gas-red vehicle heater and convectors. The system provide
heat for the convectors by circulating a glycol uid which is heated by gas and/or electricity in the heater.
These instructions explains the operation of the heating system and control panel and are approved for the Alde Com-
pact 3020 HE heating system tted in recreational vehicles.
Repairs may only be carried out by an Alde trained professional.
Always comply with national regulations.
This appliance may be used by children from the age of 8, persons with reduced physical or mental capacities or per-
sons lacking in experience and knowledge provided they have been instructed in safe use of the system and under-
stand the risks involved.
Children should not be allowed to play with the appliance. Children must not be allowed to perform cleaning and main-
tenance unless supervised.
PROHIBITED USE
To be used in recreational vehicles only.
SAFETY FEATURES
This heating system is equipped with the following safety devices:
Flame monitoring
If the ame goes out, the gas supply is switched off by a ame monitoring device.
Low-voltage shutdown
If voltage drops below 10.5 V DC, the gas supply to the burner will be switched off.
Monitoring of the exhaust fan
If there is a failure of the exhaust gas fan, the gas supply to the heating system is switched off.
Monitoring hot water temperature
A water temperature switch helps avoid excessively high water temperatures above 90 °C.
Always use caution before exposing the skin to heated water.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
Always read and follow these instructions carefully
before operating the heating system. For operating
instructions, see the separate instructions.
WARNING
VARNING
AVERTISSMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
Use special caution when children are present.
Children must not be allowed to play with the product
and must not be allowed to perform cleaning and main-
tenance

7
GB
5
GB
INTENDED USE
The Alde Compact 3020 HE heating system consist of a gas-red vehicle heater and convectors. The system provide
heat for the convectors by circulating a glycol uid which is heated by gas and/or electricity in the heater.
These instructions explains the operation of the heating system and control panel and are approved for the Alde Com-
pact 3020 HE heating system tted in recreational vehicles.
Repairs may only be carried out by an Alde trained professional.
Always comply with national regulations.
This appliance may be used by children from the age of 8, persons with reduced physical or mental capacities or per-
sons lacking in experience and knowledge provided they have been instructed in safe use of the system and under-
stand the risks involved.
Children should not be allowed to play with the appliance. Children must not be allowed to perform cleaning and main-
tenance unless supervised.
PROHIBITED USE
To be used in recreational vehicles only.
SAFETY FEATURES
This heating system is equipped with the following safety devices:
Flame monitoring
If the ame goes out, the gas supply is switched off by a ame monitoring device.
Low-voltage shutdown
If voltage drops below 10.5 V DC, the gas supply to the burner will be switched off.
Monitoring of the exhaust fan
If there is a failure of the exhaust gas fan, the gas supply to the heating system is switched off.
Monitoring hot water temperature
A water temperature switch helps avoid excessively high water temperatures above 90 °C.
Always use caution before exposing the skin to heated water.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
Always read and follow these instructions carefully
before operating the heating system. For operating
instructions, see the separate instructions.
WARNING
VARNING
AVERTISSMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
Use special caution when children are present.
Children must not be allowed to play with the product
and must not be allowed to perform cleaning and main-
tenance

8
6
• MEASUREMENTS / WEIGHT
Boiler height: 310 mm
Boiler depth: 340 mm
Boiler width: 510 mm
Weight: 14 kg (without uid)
Gas: Propane Butane
Output 1: 3.3 kW 3.8 kW
- Consumption: 245 g/h 275 g/h
Output 2: 5.5 kW 6.4 kW
- Consumption: 405 g/h 460 g/h
Pressure: I3+ 28-30/37 mbar I3B/P 30 mbar
• VOLUME/PRESSURE/TEMP
Volume of liquid, radiator water: 3.5L
Volume of liquid, domestic hot water: 8.4L
Max pressure radiator water: 0.05 MPa (0.5 bar)
Max pressure domestic hot water: 0.3 MPa (3.0 bar)
System temperature (max): 80 °C.
230–240 V ~
Output element:
(2 or 3 kW)
1 x 1050 W
1 x 2100 W
12 V DC
Current consumption: 1.9 A (max)
Fuse: 3.15 A
TECHNICAL DATA
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
When this heating system is in operation;
Always be aware of hot surfaces highlighted in
orange colour, see Figure 1.
Figure 1. Alde Compact 3020 HE boiler, hot surfaces
7
GB
1. OPERATING INSTRUCTIONS FOR ALDE COMPACT 3020
1:1 CHECKING THE HEATING SYSTEM BEFORE USE
• Check the glycol uid level in the expansion tank: the level should be approx. 1 cm above the min. line when the
system is cold. Ensure that the system is properly bled before it is put into operation.
• Check that the ue is kept free of snow and ice, as induction air enters the boiler via the ue when operated on LPG.
Also check that other objects are not obstructing or disrupting ue gases and supply air at the u.
Tip! A ue extension (part no. 3000 320) is recommended for the roof ue for camping in winter.
• Check the air circulation. Make sure there are no obstructions preventing air circulation (convection). In order to
exploit the water-borne heating to the full, it is important that air can circulate freely under bunks, and behind back-
rests and wall-mounted cabinets. If the vehicle has a tted carpet, ensure that the carpet does not obstruct the air
supply to the convectors. It is just as important that cushions and blankets do not obstruct and prevent the ow of air
behind backrests.
1:2 THE FIRST TIME THE HEATING SYSTEM IS STARTED
• Hot water boiler: Always ush the boiler completely before using for the rst time or if it has not been used for a long
period. Then ll the boiler with water – see the separate instructions for the vehicle. The boiler can equally well be
used without any freshwater in the boiler.
• Carry out a check as in section 8.
• Start the boiler as described in section ”2:1 Turning the boiler on and off”.
• Select language, this appears when the panel is started for the rst time, see section ”2:11 Tools menu – functions”
point 22.
• Check that the right accessories have a check mark next to them in the list of installed functions, see section 2:15.
• Set the clock, see section ”2:11 Tools menu – functions” point 4.
• Set the desired operating mode (gas and/or electric) and the desired interior temperature, see sections 2:4, 2:5 and
2:6. The LPG boiler and electric elements can be operated simultaneously, but this should be avoided in newly lled
systems due to the risk of air pockets still remaining in the system and that may cause overheating.
These instructions are approved for the The Alde Compact 3020 HE vehicle heater that is CE-marked according to
EN-624 for compliance to the Gas Appliance Regulation. For all relevant harmonised standards and technical speci-
cations see declaration of conformity. The appliance is marked with E5 for installation in vehicles in accordance with
R122 and R10. Installation and repairs may only be carried out by a specialist. Always comply with national regula-
tions.
NOTICE
Hot water from the boiler is not intended as drinking
water or for preparing food.
NOTICE
Freshwater in the heater should always be drained
when there is risk of frost or there is a risk of the boiler
freezing. The warranty does not cover frost damage.
A frost control can be installed to reduce the risk of
freezing (part no. 3010 430 or 3010 431).
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, water in the water heater may be hot.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Do not drink any alcohol or take any drugs before or during the operation of the heating system and follow the safety
instructions carefully.

9
GB
6
• MEASUREMENTS / WEIGHT
Boiler height: 310 mm
Boiler depth: 340 mm
Boiler width: 510 mm
Weight: 14 kg (without uid)
Gas: Propane Butane
Output 1: 3.3 kW 3.8 kW
- Consumption: 245 g/h 275 g/h
Output 2: 5.5 kW 6.4 kW
- Consumption: 405 g/h 460 g/h
Pressure: I3+ 28-30/37 mbar I3B/P 30 mbar
• VOLUME/PRESSURE/TEMP
Volume of liquid, radiator water: 3.5L
Volume of liquid, domestic hot water: 8.4L
Max pressure radiator water: 0.05 MPa (0.5 bar)
Max pressure domestic hot water: 0.3 MPa (3.0 bar)
System temperature (max): 80 °C.
230–240 V ~
Output element:
(2 or 3 kW)
1 x 1050 W
1 x 2100 W
12 V DC
Current consumption: 1.9 A (max)
Fuse: 3.15 A
TECHNICAL DATA
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
When this heating system is in operation;
Always be aware of hot surfaces highlighted in
orange colour, see Figure 1.
Figure 1. Alde Compact 3020 HE boiler, hot surfaces
7
GB
1. OPERATING INSTRUCTIONS FOR ALDE COMPACT 3020
1:1 CHECKING THE HEATING SYSTEM BEFORE USE
• Check the glycol uid level in the expansion tank: the level should be approx. 1 cm above the min. line when the
system is cold. Ensure that the system is properly bled before it is put into operation.
• Check that the ue is kept free of snow and ice, as induction air enters the boiler via the ue when operated on LPG.
Also check that other objects are not obstructing or disrupting ue gases and supply air at the u.
Tip! A ue extension (part no. 3000 320) is recommended for the roof ue for camping in winter.
• Check the air circulation. Make sure there are no obstructions preventing air circulation (convection). In order to
exploit the water-borne heating to the full, it is important that air can circulate freely under bunks, and behind back-
rests and wall-mounted cabinets. If the vehicle has a tted carpet, ensure that the carpet does not obstruct the air
supply to the convectors. It is just as important that cushions and blankets do not obstruct and prevent the ow of air
behind backrests.
1:2 THE FIRST TIME THE HEATING SYSTEM IS STARTED
• Hot water boiler: Always ush the boiler completely before using for the rst time or if it has not been used for a long
period. Then ll the boiler with water – see the separate instructions for the vehicle. The boiler can equally well be
used without any freshwater in the boiler.
• Carry out a check as in section 8.
• Start the boiler as described in section ”2:1 Turning the boiler on and off”.
• Select language, this appears when the panel is started for the rst time, see section ”2:11 Tools menu – functions”
point 22.
• Check that the right accessories have a check mark next to them in the list of installed functions, see section 2:15.
• Set the clock, see section ”2:11 Tools menu – functions” point 4.
• Set the desired operating mode (gas and/or electric) and the desired interior temperature, see sections 2:4, 2:5 and
2:6. The LPG boiler and electric elements can be operated simultaneously, but this should be avoided in newly lled
systems due to the risk of air pockets still remaining in the system and that may cause overheating.
These instructions are approved for the The Alde Compact 3020 HE vehicle heater that is CE-marked according to
EN-624 for compliance to the Gas Appliance Regulation. For all relevant harmonised standards and technical speci-
cations see declaration of conformity. The appliance is marked with E5 for installation in vehicles in accordance with
R122 and R10. Installation and repairs may only be carried out by a specialist. Always comply with national regula-
tions.
NOTICE
Hot water from the boiler is not intended as drinking
water or for preparing food.
NOTICE
Freshwater in the heater should always be drained
when there is risk of frost or there is a risk of the boiler
freezing. The warranty does not cover frost damage.
A frost control can be installed to reduce the risk of
freezing (part no. 3010 430 or 3010 431).
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, water in the water heater may be hot.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Do not drink any alcohol or take any drugs before or during the operation of the heating system and follow the safety
instructions carefully.

10
8
Figure 2. Alde Compact 3020 HE boiler Figure 3. Alde control panel 3020 113
NOTICE
The Compact 3020 heating system is designed to be
used with a thermostat control.
This manual includes instructions for controlling the
system using the Alde control panel 3020 113
(see Figure 3).
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 ºC can cause seri-
ous scalding injuries and in extreme cases even death.
The heating system can deliver hot water at tempera-
tures up to 85°C.
– For safe operation, use a mixing valve set at
a temperature no higher than 48 °C.
1:3 DESCRIPTION OF THE HEATING SYSTEM
The Alde Compact 3020 HE boiler (Figure 2). is designed to provide both heat and hot water.
The heating system includes both an LPG burner and electric heating elements and you can use the system with
either LPG, electricity or both.
The heating system consists of the boiler unit as well as an expansion tank, which is installed at the highest point in
the vehicle. Check with your vehivles’s manual to determine where the expansion tank is installed. The heating system
works by circulating hot glycol uid through pipes and heat convector’s, similar to the heating system used in many
homes.
The heating system is tted with a 12-volt electrical circulation pump that is used to circulate the heated uid. The heat
convector’s located near the oor of the vehicle allow air to be heated by the hot uid in the system and then the air
rises and circulates to heat the space in your vehicle. The heating system is also tted with a built-in hot water boiler
that has a volume of approx. 8.4 liters of fresh water.
The LPG boiler in the heating system can produce around 12 liters of 40 °C water every half-hour. If the electric hea-
ting elements are used instead of gas for powering the heating system, the capacity is slightly less. You may use the
heating system to heat the vehicle without lling the hot water boiler.
The control system allows you to select LPG, electricity or both as the energy source.
1 kW
+22°C
ACC
9
GB
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
BURN HAZARD
The exhaust temperatures from the LPG burner can be
up to 200 °C.
– Keep clear of the wall ue when in LPG operation.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
FIRE/EXPLOSION HAZARD
The exhaust temperatures from the LPG burner can be
up to 200 °C.
– Do not place combustible materials and liquids
close to the ue.
1:4 HEATING WITH LPG
• ABOUT LPG
LPG is a petroleum product, formally known as “liquid petroleum gas.” It consists primarily of propane and butane gas.
The advantage of propane is that it remains gaseous at temperatures as low as -40 °C.
For this reason, propane is used in colder climates.
LPG cylinders contain LPG in both liquid and gaseous forms. When the cylinders are lled, the pressure turns the gas
into liquid. When the gas cylinder valve is opened, the liquid becomes a gas again.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
FIRE/EXPLOSION HAZARD
The risk involved in using LPG is that any leaking gas
can ignite and explode. Since LPG is heavier than air,
leaking gas will collect at the lowest point in the area
where the leak occurs. To make it easier to detect gas
leaks, a substance with a distinctly strong smell has
been added to the gas.
– For your safety install a gas alarm according to the
gas alarm manufacturer’s recommendations.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
ASPHYXIATION HAZARD
LPG contains no toxic substances, but breathing in
concentrated gas may cause suffocation due to lack of
oxygen. Incomplete combustion of LPG can produce
carbon monoxide (CO) gas, which is a asphyxiation
hazard.
– For your safety, install and use a CO detector.
• USING THE LPG HEATING
Refer to the control panel instructions section “2. Operating instructions for Controlpanel”
When LPG operation is selected on the control panel, the LPG burner in the heating system and the pump for circula-
ting the glycol heating uid start automatically whenever heat is called for by the thermostat.
The LPG burner keeps operating and the pump keeps circulating until the thermostat reaches the set temperature.
Should the LPG burner go out for any reason, a sensor will be activated and the heating system will attempt to auto-
matically restart (in about 10 seconds).
• SNOWY CONDITIONS
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
ASPHYXIATION HAZARD
To burn properly and safely, the LPG burner in the heating system must have adequate air intake. Inadequate air
intake may cause the build-up of CO gas, which is an asphyxiation hazard. The inlet air to the gas burner enters
through the ue, which is usually installed on the side of the vehicle near the boiler. While camping during the winter,
make sure that the ue is kept clear of snow and ice.
– Do not start the LPG operation on the heating system until the ue is completely free of snow and/or ice.
Tip! A ue extension (part no. 3000 320) is recommended for the roof ue for camping in winter.

11
GB
8
Figure 2. Alde Compact 3020 HE boiler Figure 3. Alde control panel 3020 113
NOTICE
The Compact 3020 heating system is designed to be
used with a thermostat control.
This manual includes instructions for controlling the
system using the Alde control panel 3020 113
(see Figure 3).
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 ºC can cause seri-
ous scalding injuries and in extreme cases even death.
The heating system can deliver hot water at tempera-
tures up to 85°C.
– For safe operation, use a mixing valve set at
a temperature no higher than 48 °C.
1:3 DESCRIPTION OF THE HEATING SYSTEM
The Alde Compact 3020 HE boiler (Figure 2). is designed to provide both heat and hot water.
The heating system includes both an LPG burner and electric heating elements and you can use the system with
either LPG, electricity or both.
The heating system consists of the boiler unit as well as an expansion tank, which is installed at the highest point in
the vehicle. Check with your vehivles’s manual to determine where the expansion tank is installed. The heating system
works by circulating hot glycol uid through pipes and heat convector’s, similar to the heating system used in many
homes.
The heating system is tted with a 12-volt electrical circulation pump that is used to circulate the heated uid. The heat
convector’s located near the oor of the vehicle allow air to be heated by the hot uid in the system and then the air
rises and circulates to heat the space in your vehicle. The heating system is also tted with a built-in hot water boiler
that has a volume of approx. 8.4 liters of fresh water.
The LPG boiler in the heating system can produce around 12 liters of 40 °C water every half-hour. If the electric hea-
ting elements are used instead of gas for powering the heating system, the capacity is slightly less. You may use the
heating system to heat the vehicle without lling the hot water boiler.
The control system allows you to select LPG, electricity or both as the energy source.
1 kW
+22°C
ACC
9
GB
WARNING
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BURN HAZARD
The exhaust temperatures from the LPG burner can be
up to 200 °C.
– Keep clear of the wall ue when in LPG operation.
WARNING
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VAROITUS
ADVERTENCIA
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FIRE/EXPLOSION HAZARD
The exhaust temperatures from the LPG burner can be
up to 200 °C.
– Do not place combustible materials and liquids
close to the ue.
1:4 HEATING WITH LPG
• ABOUT LPG
LPG is a petroleum product, formally known as “liquid petroleum gas.” It consists primarily of propane and butane gas.
The advantage of propane is that it remains gaseous at temperatures as low as -40 °C.
For this reason, propane is used in colder climates.
LPG cylinders contain LPG in both liquid and gaseous forms. When the cylinders are lled, the pressure turns the gas
into liquid. When the gas cylinder valve is opened, the liquid becomes a gas again.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
FIRE/EXPLOSION HAZARD
The risk involved in using LPG is that any leaking gas
can ignite and explode. Since LPG is heavier than air,
leaking gas will collect at the lowest point in the area
where the leak occurs. To make it easier to detect gas
leaks, a substance with a distinctly strong smell has
been added to the gas.
– For your safety install a gas alarm according to the
gas alarm manufacturer’s recommendations.
WARNING
VARNING
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ADVERTENCIA
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ASPHYXIATION HAZARD
LPG contains no toxic substances, but breathing in
concentrated gas may cause suffocation due to lack of
oxygen. Incomplete combustion of LPG can produce
carbon monoxide (CO) gas, which is a asphyxiation
hazard.
– For your safety, install and use a CO detector.
• USING THE LPG HEATING
Refer to the control panel instructions section “2. Operating instructions for Controlpanel”
When LPG operation is selected on the control panel, the LPG burner in the heating system and the pump for circula-
ting the glycol heating uid start automatically whenever heat is called for by the thermostat.
The LPG burner keeps operating and the pump keeps circulating until the thermostat reaches the set temperature.
Should the LPG burner go out for any reason, a sensor will be activated and the heating system will attempt to auto-
matically restart (in about 10 seconds).
• SNOWY CONDITIONS
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
ASPHYXIATION HAZARD
To burn properly and safely, the LPG burner in the heating system must have adequate air intake. Inadequate air
intake may cause the build-up of CO gas, which is an asphyxiation hazard. The inlet air to the gas burner enters
through the ue, which is usually installed on the side of the vehicle near the boiler. While camping during the winter,
make sure that the ue is kept clear of snow and ice.
– Do not start the LPG operation on the heating system until the ue is completely free of snow and/or ice.
Tip! A ue extension (part no. 3000 320) is recommended for the roof ue for camping in winter.

12
10
NOTICE
Ensure that correct electrical service is available before
using the immersion heating.
Campsite power supply differences from a range from
6 A to 10 A and 16 A. Hence, before plugging in, check
that the power source is sufcient fused to support the
power consumption needed for the immersion heating.
1kW - 6A Fuse
2kW - 10A Fuse
3kW - 16A Fuse
1:5 HEATING WITH ELECTRICITY
All Alde Compact 3020 heating systems are tted with two 230V heating elements (one 1kW element and one 2kW
element) in total 3kW.
Refer to the control panel instructions (section 2).
When electrical operation is selected on the control panel, the immersion heating elements are used to heat the
heating system. The heating elements and the circulation pump are controlled in the same way as the
LPG operation.
1:6 THE PRINCIPLE OF CONVECTION
Both LPG and electric heating use hot glycol uid to heat the space in the vehicle.
To achieve the best possible result from the heating, it is important that air can circulate freely under bunks, and
behind backrests and wall-mounted cabinets. If the vehicle has a tted carpet, ensure that the carpet does not obstruct
the air supply to the convector’s. It is just as important that cushions and blankets do not obstruct and prevent the ow
of air behind backrests. (see Figure 4).
NOTICE
Obstruction of the air supply to convector’s cause poor
or no heating of the vehicle.
Exhaust air
Air intake
Figure 4. Air circulation
11
GB
NOTICE
Hot water from the boiler is not intended as drinking
water or for preparing food.
NOTICE
Freshwater in the heater should always be drained
when there is risk of frost or there is a risk of the boiler
freezing. The warranty does not cover frost damage.
A frost control can be installed to reduce the risk of
freezing (part no. 3010 430 or 3010 431).
NOTICE
Always ush the boiler completely before using for the
rst time or if it has not been used for a long period.
NOTICE
There may be a variation between the water tempera-
ture delivered from the heating system and the temper-
ature at the tap due to the length of the pipe.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 °C can cause seri-
ous scalding injuries and in extreme cases even death.
The heating system can deliver hot water at tempera-
tures up to 85 °C.
– For safe operation, use a mixing valve set at
temperature no higher than 48 °C.
1:7 USING THE HEATING SYSTEM
• DOMESTIC HOT WATER
The Alde Compact 3020 heating system can supply domestic hot water using either LPG or electricity.
Please see the control panel instructions (section 2) for details.
• USING ONLY HOT WATER
When only hot water is required (for example during the summer), no settings need to be changed. The heating sys-
tem will handle this function automatically.
Refer to the control panel instructions for details on using hot water.
• AIR CUSHION
The heating system is designed to have an air space, called an air cushion, at the top of the tank. This air cushion is
essential for absorbing pressure surges in the heating system. Always renew the air cushion in the heating system
after 10 days of use.
This can be done by opening the safety/drain valve on the heating system for a few second.
The air cushion allows expansion to take place and helps protect the heating system against pressure surges from the
water pump.
NOTICE
To maintain the air cushion, always renew the air
cushion in the heating system after 10 days of use.
To make hot water with the heating system:
1. Make sure that the vehicles’s water tank is lled up with clean, uncontaminated water or connected to a main
water supply.
2. Fill the hot water tank in the heating system with clean, fresh water. If the heating system is used for the rst time
or if the heating system has not been used for some time, ush it out with water by opening any hot water tap in
the vehicle and allowing approximately 12 liters to run through the tap.
3. Close all taps and start the heating system using the control panel.

13
GB
10
NOTICE
Ensure that correct electrical service is available before
using the immersion heating.
Campsite power supply differences from a range from
6 A to 10 A and 16 A. Hence, before plugging in, check
that the power source is sufcient fused to support the
power consumption needed for the immersion heating.
1kW - 6A Fuse
2kW - 10A Fuse
3kW - 16A Fuse
1:5 HEATING WITH ELECTRICITY
All Alde Compact 3020 heating systems are tted with two 230V heating elements (one 1kW element and one 2kW
element) in total 3kW.
Refer to the control panel instructions (section 2).
When electrical operation is selected on the control panel, the immersion heating elements are used to heat the
heating system. The heating elements and the circulation pump are controlled in the same way as the
LPG operation.
1:6 THE PRINCIPLE OF CONVECTION
Both LPG and electric heating use hot glycol uid to heat the space in the vehicle.
To achieve the best possible result from the heating, it is important that air can circulate freely under bunks, and
behind backrests and wall-mounted cabinets. If the vehicle has a tted carpet, ensure that the carpet does not obstruct
the air supply to the convector’s. It is just as important that cushions and blankets do not obstruct and prevent the ow
of air behind backrests. (see Figure 4).
NOTICE
Obstruction of the air supply to convector’s cause poor
or no heating of the vehicle.
Exhaust air
Air intake
Figure 4. Air circulation
11
GB
NOTICE
Hot water from the boiler is not intended as drinking
water or for preparing food.
NOTICE
Freshwater in the heater should always be drained
when there is risk of frost or there is a risk of the boiler
freezing. The warranty does not cover frost damage.
A frost control can be installed to reduce the risk of
freezing (part no. 3010 430 or 3010 431).
NOTICE
Always ush the boiler completely before using for the
rst time or if it has not been used for a long period.
NOTICE
There may be a variation between the water tempera-
ture delivered from the heating system and the temper-
ature at the tap due to the length of the pipe.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
HOT WATER HAZARD
Hot water at temperatures above 49 °C can cause seri-
ous scalding injuries and in extreme cases even death.
The heating system can deliver hot water at tempera-
tures up to 85 °C.
– For safe operation, use a mixing valve set at
temperature no higher than 48 °C.
1:7 USING THE HEATING SYSTEM
• DOMESTIC HOT WATER
The Alde Compact 3020 heating system can supply domestic hot water using either LPG or electricity.
Please see the control panel instructions (section 2) for details.
• USING ONLY HOT WATER
When only hot water is required (for example during the summer), no settings need to be changed. The heating sys-
tem will handle this function automatically.
Refer to the control panel instructions for details on using hot water.
• AIR CUSHION
The heating system is designed to have an air space, called an air cushion, at the top of the tank. This air cushion is
essential for absorbing pressure surges in the heating system. Always renew the air cushion in the heating system
after 10 days of use.
This can be done by opening the safety/drain valve on the heating system for a few second.
The air cushion allows expansion to take place and helps protect the heating system against pressure surges from the
water pump.
NOTICE
To maintain the air cushion, always renew the air
cushion in the heating system after 10 days of use.
To make hot water with the heating system:
1. Make sure that the vehicles’s water tank is lled up with clean, uncontaminated water or connected to a main
water supply.
2. Fill the hot water tank in the heating system with clean, fresh water. If the heating system is used for the rst time
or if the heating system has not been used for some time, ush it out with water by opening any hot water tap in
the vehicle and allowing approximately 12 liters to run through the tap.
3. Close all taps and start the heating system using the control panel.

14
12
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, water in the water heater may be hot.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Never actuate the drain valve lever as long as the heat-
ing system is under water pressure and/or is still warm.
Closed M
Open
M
K
28
2421
20 22 23
25 27
26
Figure 5. Alde Compact 3020 HE boiler
Figure 6. Combined safety/drain valve Figure 7. Frost Control
1. Switch off the freshwater pump.
2. Open all water taps.
3. Then, open the safety/drain valve by moving the yellow lever to the vertical position (M) (Figure 6), or, alternatively,
turn the knob (K) 90° (Figure 7). The hot water heater will now drain straight out under the vehicle through the
safety/drain valve hose.
4. Check that all the water empties out (approx. 7-10 litres). Leave the valve in the open position until the next time
the heater is used.
• For emptying specially-adapted heating systems, as well as any other water systems in the vehicle, please refer to
the manufacturer’s instructions.
NOTICE
Ensure that the automatic check valve
(see Figure 5.21) is open and is allowing air to enter the
boiler when it is being drained and that the hose is not
blocked.
• Draining the hot water tank in the heating system using the combined safety/drain valve:
13
GB
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
The heating system and its plumbing components should always be drained of fresh water when there is a risk of
freezing and when the vehicle is not in use.
The warranty does not cover frost damage.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Only specially hoses rated for use with LPG should
be installed with this system. The use of other types
of hose may result in hose failure and leakage. Hoses
must be changed by a trained professional.
NOTICE
The LPG system must be checked regularly (preferably
once a year) by a professional to help ensure that there
are no leaks from connections or hoses.
1:8 STORAGE AND WINTERIZATION
For this reason it is advisable to follow the recommendation(s) below if the heating system is to be stored in a freezing
environment or for long periods of time. At the start of the winter season or before traveling to a location where freez-
ing conditions are likely, the heating must be winterized.
Winterize as follows:
• Drain the hot water tank and its plumbing components in the heating system, refer to section 1:7 “Draining the hot
water tank in the heating system using the combined safety/drain valve”.
Also:
• Turn off the main power supply (12V) to the heating system. The main power supply should always be switched off
when the vehicle is not being used.
• Turn off the LPG supply tank.
• When washing the vehicle, take care not to get water in the ue.
1:9 MAINTAINING THE HEATING SYSTEM
Repairs must be performed by a qualied service technician. Verify proper operation after servicing.
1:10 LPG CONNECTIONS AND HOSES
Rubber hoses have a propensity to dry out and crack and therefore LPG hoses must be changed according to national
regulations, at least once every 5 years. Check the date stamp on the hose.

15
GB
12
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, water in the water heater may be hot.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Never actuate the drain valve lever as long as the heat-
ing system is under water pressure and/or is still warm.
Closed M
Open
M
K
28
2421
20 22 23
25 27
26
Figure 5. Alde Compact 3020 HE boiler
Figure 6. Combined safety/drain valve Figure 7. Frost Control
1. Switch off the freshwater pump.
2. Open all water taps.
3. Then, open the safety/drain valve by moving the yellow lever to the vertical position (M) (Figure 6), or, alternatively,
turn the knob (K) 90° (Figure 7). The hot water heater will now drain straight out under the vehicle through the
safety/drain valve hose.
4. Check that all the water empties out (approx. 7-10 litres). Leave the valve in the open position until the next time
the heater is used.
• For emptying specially-adapted heating systems, as well as any other water systems in the vehicle, please refer to
the manufacturer’s instructions.
NOTICE
Ensure that the automatic check valve
(see Figure 5.21) is open and is allowing air to enter the
boiler when it is being drained and that the hose is not
blocked.
• Draining the hot water tank in the heating system using the combined safety/drain valve:
13
GB
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
The heating system and its plumbing components should always be drained of fresh water when there is a risk of
freezing and when the vehicle is not in use.
The warranty does not cover frost damage.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Only specially hoses rated for use with LPG should
be installed with this system. The use of other types
of hose may result in hose failure and leakage. Hoses
must be changed by a trained professional.
NOTICE
The LPG system must be checked regularly (preferably
once a year) by a professional to help ensure that there
are no leaks from connections or hoses.
1:8 STORAGE AND WINTERIZATION
For this reason it is advisable to follow the recommendation(s) below if the heating system is to be stored in a freezing
environment or for long periods of time. At the start of the winter season or before traveling to a location where freez-
ing conditions are likely, the heating must be winterized.
Winterize as follows:
• Drain the hot water tank and its plumbing components in the heating system, refer to section 1:7 “Draining the hot
water tank in the heating system using the combined safety/drain valve”.
Also:
• Turn off the main power supply (12V) to the heating system. The main power supply should always be switched off
when the vehicle is not being used.
• Turn off the LPG supply tank.
• When washing the vehicle, take care not to get water in the ue.
1:9 MAINTAINING THE HEATING SYSTEM
Repairs must be performed by a qualied service technician. Verify proper operation after servicing.
1:10 LPG CONNECTIONS AND HOSES
Rubber hoses have a propensity to dry out and crack and therefore LPG hoses must be changed according to national
regulations, at least once every 5 years. Check the date stamp on the hose.

16
14
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
The heating system comes installed with glycol heating
uid. If the uid level is to low you must ll the system to
the right level before operating the heating system.
Your warranty may be voided and the heating system
may be damaged if you attempt to start it with little or
no glycol heating uid. Fluid level in a cold
heating system
NOTICE
Do not mix different types of glycol; this can lead to coagulation
of the glycol uid.
Figure 8. Fluid level of heating system
1:11 GLYCOL HEATING FLUID
The heating system must be lled with a uid mixture consisting of distilled water and ethylene glycol. For best re-
sults, use high-quality ready-mixed ethylene glycol (with inhibitors) intended for use in aluminium heating systems.
The proportions when using concentrated ethylene glycol are 60% distilled water, or water that is free of salts, and
40% ethylene glycol. If the heating system will be exposed to temperatures below -25°C, the ethylene glycol content
has to be increased, however, do not exceed 50%. The ethylene glycol mixture has to be changed every other year,
since properties such as corrosion protection, deteriorate over time. If Alde Premium Antifreeze is used, the interval for
changing the mixture can be extended to max 5 years under normal operating conditions.
The ethylene glycol system is topped up in the expansion tank. Either manually or using Alde’s top-up pump, which
both lls and vents the system. During manual lling, pour the ethylene glycol mixture slowly into the expansion tank.
When the heating system is cold, the level should be approx. 1 cm above the MIN line, see Figure 8. Bleed the sys-
tem. Top up with more uid if the level falls during bleeding. In newly lled heating systems, bleed at regular intervals,
see the section “1:12 lling the heating system with glycol uid”.
The glycol content should be checked at the expansion tank using a pH tester before topping up with new liquid to
help ensure that the concentration of glycol in the mixture is not too high.
If the uid level falls for reasons other than evaporation, please check all joints, drain cocks and bleeder screws for
leakage, including the bleeder located at the end of the convector.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
POISONING HAZARD
Be sure to thoroughly clean up any puddles of leaked
glycol. Rinse the area with water and wipe up the ex-
cess to prevent accidental ingestion by children or pets.
NOTICE
The glycol mixture should be changed every second
year to help ensure maximum corrosion inhibitor
effectiveness
1:12 FILLING THE HEATING SYSTEM WITH GLYCOL FLUID
Fill the heating system through the expansion tank, either manually or using the Alde lling pump, which both tops up
and bleeds the system. To purchase a lling pump, contact your Alde dealer. For manual lling, remove the nut
(Figure 8) from the expansion tank. Slowly pour the glycol mixture into the expansion tank , the level should be approx.
1 cm above the MIN line, see Figure 8. Bleed the system. Top up with more uid if the level falls during bleeding. In
newly lled heating systems, bleed at regular intervals.
NOTICE
Omitting to change the uid can result in frost damage, corrosion, bacterial growth and/or overheating.
Nut
15
GB
NOTICE
Never open the bleeder screws while the pump is
running, because this will induce air into the system.
Figure 9. Automatic Air bleeder
NOTICE
Be sure that the heating system has been thoroughly
bled. If this is not the case, there may be a risk of over-
heating.
Never use full electric or gas capacity before the sys-
tem has been thoroughly bled. There may be a risk of
overheating.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, the glycol heating uid may be hot.
1:13 BLEEDING THE SYSTEM
Depending on how the pipes have been tted, air pockets may form when the system is lled with ethylene glycol uid.
If the pipes only warm up a metre or so from the boiler, even though the circulation pump is operating, this is a symp-
tom of air trapped in the system.
In newly lled heating system, small air bubbles can form in the expansion tank, creating a gurgling sound. If the circu-
lation pump is stopped for a few seconds, the bubbles will usually disappear; however, if the problem persists, bleed
the heating system to remedy the problem.
Bleed as follows:
1. The boiler has to be switched off.
2. If a bleed screw is tted to the outgoing pipe of the boiler, open this bleed screw and leave it open until uid starts
coming out. Then, go to point 4.
3. If the boiler is equipped with an automatic air vent, bleeding the boiler takes place automatically. Start the boiler
and circulate the uid in the system until it is vented, top-up with uid, if needed, according to point 5. If this
doesn’t help, switch off the boiler and go to point 4.
4. Open the other bleed screws in the system, one by one. Leave the bleed screws open until ethylene glycol uid
starts coming out of them, and then close them.
5. Check the uid level. Top-up if the level has fallen during venting, the uid level in the expansion tank has to be
approx. 1 cm above the min line in a cold heating system.
6. Start the boiler and let it run for a while. Feel if the pipes and radiators are heating up around the vehicle.
If this does not help, use an Alde lling pump.
• PERSISTENT AIR LOCK
If air lock persists, try the following:
Single-axle trailers:
1. Stop the circulation pump.
2. Lower the front of the trailer as far as possible. Leave it in this position for a few minutes to allow the air to travel
upward in the heating system.
3. Open the bleeder screw at the highest point. Leave it open until it discharges glycol uid.
4. Raise the front of the trailer as far as possible and repeat the procedure in this position.
5. Position the trailer horizontally and start the circulation pump.
6. Check that the pipes and convector’s around the vehicle are heating up.
Motor-home or twin-axle trailers:
The easiest way to bleed the heating system is to place the vehicle on a sloping surface or to raise one end of the
vehicle using a jack. Bleed the heating system as described above. Alternatively, the heating system can be bled using
the approved lling pump. To obtain a pump, contact your Alde dealer.

17
GB
14
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
The heating system comes installed with glycol heating
uid. If the uid level is to low you must ll the system to
the right level before operating the heating system.
Your warranty may be voided and the heating system
may be damaged if you attempt to start it with little or
no glycol heating uid. Fluid level in a cold
heating system
NOTICE
Do not mix different types of glycol; this can lead to coagulation
of the glycol uid.
Figure 8. Fluid level of heating system
1:11 GLYCOL HEATING FLUID
The heating system must be lled with a uid mixture consisting of distilled water and ethylene glycol. For best re-
sults, use high-quality ready-mixed ethylene glycol (with inhibitors) intended for use in aluminium heating systems.
The proportions when using concentrated ethylene glycol are 60% distilled water, or water that is free of salts, and
40% ethylene glycol. If the heating system will be exposed to temperatures below -25°C, the ethylene glycol content
has to be increased, however, do not exceed 50%. The ethylene glycol mixture has to be changed every other year,
since properties such as corrosion protection, deteriorate over time. If Alde Premium Antifreeze is used, the interval for
changing the mixture can be extended to max 5 years under normal operating conditions.
The ethylene glycol system is topped up in the expansion tank. Either manually or using Alde’s top-up pump, which
both lls and vents the system. During manual lling, pour the ethylene glycol mixture slowly into the expansion tank.
When the heating system is cold, the level should be approx. 1 cm above the MIN line, see Figure 8. Bleed the sys-
tem. Top up with more uid if the level falls during bleeding. In newly lled heating systems, bleed at regular intervals,
see the section “1:12 lling the heating system with glycol uid”.
The glycol content should be checked at the expansion tank using a pH tester before topping up with new liquid to
help ensure that the concentration of glycol in the mixture is not too high.
If the uid level falls for reasons other than evaporation, please check all joints, drain cocks and bleeder screws for
leakage, including the bleeder located at the end of the convector.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
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ADVERTENCIA
AVVERTENZA
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POISONING HAZARD
Be sure to thoroughly clean up any puddles of leaked
glycol. Rinse the area with water and wipe up the ex-
cess to prevent accidental ingestion by children or pets.
NOTICE
The glycol mixture should be changed every second
year to help ensure maximum corrosion inhibitor
effectiveness
1:12 FILLING THE HEATING SYSTEM WITH GLYCOL FLUID
Fill the heating system through the expansion tank, either manually or using the Alde lling pump, which both tops up
and bleeds the system. To purchase a lling pump, contact your Alde dealer. For manual lling, remove the nut
(Figure 8) from the expansion tank. Slowly pour the glycol mixture into the expansion tank , the level should be approx.
1 cm above the MIN line, see Figure 8. Bleed the system. Top up with more uid if the level falls during bleeding. In
newly lled heating systems, bleed at regular intervals.
NOTICE
Omitting to change the uid can result in frost damage, corrosion, bacterial growth and/or overheating.
Nut
15
GB
NOTICE
Never open the bleeder screws while the pump is
running, because this will induce air into the system.
Figure 9. Automatic Air bleeder
NOTICE
Be sure that the heating system has been thoroughly
bled. If this is not the case, there may be a risk of over-
heating.
Never use full electric or gas capacity before the sys-
tem has been thoroughly bled. There may be a risk of
overheating.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Remember, the glycol heating uid may be hot.
1:13 BLEEDING THE SYSTEM
Depending on how the pipes have been tted, air pockets may form when the system is lled with ethylene glycol uid.
If the pipes only warm up a metre or so from the boiler, even though the circulation pump is operating, this is a symp-
tom of air trapped in the system.
In newly lled heating system, small air bubbles can form in the expansion tank, creating a gurgling sound. If the circu-
lation pump is stopped for a few seconds, the bubbles will usually disappear; however, if the problem persists, bleed
the heating system to remedy the problem.
Bleed as follows:
1. The boiler has to be switched off.
2. If a bleed screw is tted to the outgoing pipe of the boiler, open this bleed screw and leave it open until uid starts
coming out. Then, go to point 4.
3. If the boiler is equipped with an automatic air vent, bleeding the boiler takes place automatically. Start the boiler
and circulate the uid in the system until it is vented, top-up with uid, if needed, according to point 5. If this
doesn’t help, switch off the boiler and go to point 4.
4. Open the other bleed screws in the system, one by one. Leave the bleed screws open until ethylene glycol uid
starts coming out of them, and then close them.
5. Check the uid level. Top-up if the level has fallen during venting, the uid level in the expansion tank has to be
approx. 1 cm above the min line in a cold heating system.
6. Start the boiler and let it run for a while. Feel if the pipes and radiators are heating up around the vehicle.
If this does not help, use an Alde lling pump.
• PERSISTENT AIR LOCK
If air lock persists, try the following:
Single-axle trailers:
1. Stop the circulation pump.
2. Lower the front of the trailer as far as possible. Leave it in this position for a few minutes to allow the air to travel
upward in the heating system.
3. Open the bleeder screw at the highest point. Leave it open until it discharges glycol uid.
4. Raise the front of the trailer as far as possible and repeat the procedure in this position.
5. Position the trailer horizontally and start the circulation pump.
6. Check that the pipes and convector’s around the vehicle are heating up.
Motor-home or twin-axle trailers:
The easiest way to bleed the heating system is to place the vehicle on a sloping surface or to raise one end of the
vehicle using a jack. Bleed the heating system as described above. Alternatively, the heating system can be bled using
the approved lling pump. To obtain a pump, contact your Alde dealer.

18
16
1:14 IMPORTANT INFORMATION
• Always switch off the main isolating switch (12V) for the heating system when the vehicle is not in use.
• The LPG burner must not be in operation when refuelling the vehicle or when lling a xed LPG tank.
• When washing the vehicle, do not spray water directly towards the ue.
• When camping in winter conditions, ensure that the ue and exhaust air valves are kept clear of snow and ice.
• The vehicle may be heated even if the hot water boiler inside the boiler is not lled with water.
• The LPG burner and electric element may be operated simultaneously.
• Always drain the hot water tank in the heating system when there is a risk of frost and when the vehicle is not being
used. Failing to do so could lead to a risk of serious frost damage.
• Always renew the air cushion in the hot water tank after 10 days of use to create a new air cushion. This can be
done by opening the safety/drain valve on the heating system for a few seconds.
• Always maintain the proper level of glycol uid in the heating system.
• The glycol mixture should be changed every other year because certain properties such as corrosion protection
deteriorate over time.
Omitting to change the uid can result in frost damage, corrosion, bacterial growth and/or overheating.
• Sterilisation uids for water can cause harmful corrosion to the stainless structure of the heating. Always read the
data label regarding additives that are used and make sure that the system is ushed of all additives before using
the heating system.
• Be aware of hard water: Hard water is water that has a high dissolved-mineral content, particularly calcium. If the
boiler is used in a hard water area for prolonged periods, install a water lter. Hard water can lead to a build-up of
lime scale that can reduce the functionality of the system.
• Bleed the heating system, see section “1:13 bleeding the system”. Top up with more liquid if the level has fallen
after bleeding. Bleed a newly lled heating system regularly during the rst days the heating system is in operation.
NOTICE
Close the main LPG valve in the following circumstances:
• When a leak in the LPG system is suspected.
• When the vehicle is not intended to be used.
• The national legislation of the country you are in may require you to close the main LPG tap when the vehicle is
in trafc.
• When repairing the heating system.
17
GB
2. OPERATING INSTRUCTIONS FOR CONTROLPANEL
2:3 SETTINGS MENU
Launch the settings menu by pressing the MENU button. The background light comes on and those functions that can
be set are displayed. Settings that you make are automatically saved after 10 seconds. The control panel will go to
standby automatically after 30 seconds if the screen has not been touched.
1. To start the boiler, press the On/Off
button and the start-up display ap-
pears. The boiler starts with the last
selected settings. A green LED comes
on beside the On/Off button when the
panel/heating system is on.
2. To switch off the boiler, press the On/
Off button.
3020
High Efficiency
2:2 STANDBY
The heating system is switched off. The heating system is switched on.
22°C
6°C
Fri 18.30
D
C
A
LM
I
B
EF G H J
1 kW
+22°C
ACC
22°C
6°C
Fri 18.30
For activated functions, see section 2:9.
For the tools menu, see section 2:10.
The control panel in standby mode.
The control panel in settings menu.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Do not drink any alcohol or take any drugs before or during operating the heating system and follow the safety in-
structions in this manual carefully.
NOTICE
If “Background light” is set to Dark, the display goes out when it enters standby mode, but lights up if you press the
screen. See settings in section 2:11, point 8.
A. Clock. The clock shows the day and time (if
activated). To set the clock, see under sec-
tion 2:11 point 4.
B. *Outdoor temperature.
C. Indoor temperature.
D. Circulation pump. The symbol is displayed
when the pump is in operation.
E. Automatic start of the boiler. The symbol is
displayed when the function is activated in
accordance with section 2:11 point 18.
F. Day mode. The symbol is displayed when
the function is on and turns green when
activated
G. *LPG bottle full/empty. The symbol is
displayed when the sensor on DuoCon-
trol is connected and activated. If EisEX
is installed a snowake is shown inside
the gas botle.
Green bottle = Bottle full
Red bottle = Bottle empty
H. Night mode. The symbol is displayed
when the function is on and turns green
when activated.
I. High altitude mode. The symbol ashes
if the high altitude mode is activated.
J. The symbol ashes during heat up of
*Alde Flow (part no. 3020 161) when set in
more hot water mode.
K. 230 volt. The symbol is displayed when
230 V is connected to the boiler.
L. On/Off button. Main switch for boiler.
M. MENU button. Button for settings menu.
2:1 TURNING THE BOILER ON AND OFF
Functions marked with a (*) are accessories, which are not installed on all vehicles,
refer to the vehicle manufacturer’s instructions.
K

19
GB
16
1:14 IMPORTANT INFORMATION
• Always switch off the main isolating switch (12V) for the heating system when the vehicle is not in use.
• The LPG burner must not be in operation when refuelling the vehicle or when lling a xed LPG tank.
• When washing the vehicle, do not spray water directly towards the ue.
• When camping in winter conditions, ensure that the ue and exhaust air valves are kept clear of snow and ice.
• The vehicle may be heated even if the hot water boiler inside the boiler is not lled with water.
• The LPG burner and electric element may be operated simultaneously.
•Always drain the hot water tank in the heating system when there is a risk of frost and when the vehicle is not being
used. Failing to do so could lead to a risk of serious frost damage.
• Always renew the air cushion in the hot water tank after 10 days of use to create a new air cushion. This can be
done by opening the safety/drain valve on the heating system for a few seconds.
• Always maintain the proper level of glycol uid in the heating system.
• The glycol mixture should be changed every other year because certain properties such as corrosion protection
deteriorate over time.
Omitting to change the uid can result in frost damage, corrosion, bacterial growth and/or overheating.
• Sterilisation uids for water can cause harmful corrosion to the stainless structure of the heating. Always read the
data label regarding additives that are used and make sure that the system is ushed of all additives before using
the heating system.
• Be aware of hard water: Hard water is water that has a high dissolved-mineral content, particularly calcium. If the
boiler is used in a hard water area for prolonged periods, install a water lter. Hard water can lead to a build-up of
lime scale that can reduce the functionality of the system.
• Bleed the heating system, see section “1:13 bleeding the system”. Top up with more liquid if the level has fallen
after bleeding. Bleed a newly lled heating system regularly during the rst days the heating system is in operation.
NOTICE
Close the main LPG valve in the following circumstances:
• When a leak in the LPG system is suspected.
• When the vehicle is not intended to be used.
• The national legislation of the country you are in may require you to close the main LPG tap when the vehicle is
in trafc.
• When repairing the heating system.
17
GB
2. OPERATING INSTRUCTIONS FOR CONTROLPANEL
2:3 SETTINGS MENU
Launch the settings menu by pressing the MENU button. The background light comes on and those functions that can
be set are displayed. Settings that you make are automatically saved after 10 seconds. The control panel will go to
standby automatically after 30 seconds if the screen has not been touched.
1. To start the boiler, press the On/Off
button and the start-up display ap-
pears. The boiler starts with the last
selected settings. A green LED comes
on beside the On/Off button when the
panel/heating system is on.
2. To switch off the boiler, press the On/
Off button.
3020
High Efficiency
2:2 STANDBY
The heating system is switched off. The heating system is switched on.
22°C
6°C
Fri 18.30
D
C
A
LM
I
B
EF G H J
1 kW
+22°C
ACC
22°C
6°C
Fri 18.30
For activated functions, see section 2:9.
For the tools menu, see section 2:10.
The control panel in standby mode.
The control panel in settings menu.
CAUTION
OBSERVERA
ATTENTION
VOORZICHTIG
Do not drink any alcohol or take any drugs before or during operating the heating system and follow the safety in-
structions in this manual carefully.
NOTICE
If “Background light” is set to Dark, the display goes out when it enters standby mode, but lights up if you press the
screen. See settings in section 2:11, point 8.
A. Clock. The clock shows the day and time (if
activated). To set the clock, see under sec-
tion 2:11 point 4.
B. *Outdoor temperature.
C. Indoor temperature.
D. Circulation pump. The symbol is displayed
when the pump is in operation.
E. Automatic start of the boiler. The symbol is
displayed when the function is activated in
accordance with section 2:11 point 18.
F. Day mode. The symbol is displayed when
the function is on and turns green when
activated
G. *LPG bottle full/empty. The symbol is
displayed when the sensor on DuoCon-
trol is connected and activated. If EisEX
is installed a snowake is shown inside
the gas botle.
Green bottle = Bottle full
Red bottle = Bottle empty
H. Night mode. The symbol is displayed
when the function is on and turns green
when activated.
I. High altitude mode. The symbol ashes
if the high altitude mode is activated.
J. The symbol ashes during heat up of
*Alde Flow (part no. 3020 161) when set in
more hot water mode.
K. 230 volt. The symbol is displayed when
230 V is connected to the boiler.
L. On/Off button. Main switch for boiler.
M. MENU button. Button for settings menu.
2:1 TURNING THE BOILER ON AND OFF
Functions marked with a (*) are accessories, which are not installed on all vehicles,
refer to the vehicle manufacturer’s instructions.
K

20
18
2:4 SET THE DESIRED TEMPERATURE
The temperature can be set between +5°C and +30°C, inclusive, in increments of 0.5°C.
1. The temperature displayed is the temperature which is currently set.
2. Increase the temperature by pressing the ”+” button. Reduce the temperature
by pressing the ”-” button.
3. The settings are now complete and the boiler will work at the set temperature.
1 kW
+22°C
ACC
+22°C
1 kW
ACC
1 kW
+22°C
ACC
1 kW
+22°C
ACC
1. No hot water. If domestic hot water is not needed, press the ”-” button (symbol
becomes empty).
2. Normal operation. If there is freshwater in the heater and hot water is required,
press the “+” button (the symbol will then show half-shaded).
3. More hot water. If you need more hot water, the water temperature can be temporar-
ily increased to around 70°C. Press the “+” button so that the symbol shows fully
shaded (black). The boiler returns to normal operation after 30 minutes.
NB. If the pump operation function is set to Cont., see section 2:11 point 17, then the
continuous pump operation function is turned off for 30 minutes, before then return-
ing to continuous pump operation.
NB. If an additional hot water tank (*Alde Flow part no. 3020 161) is installed and the panel is
in more hot water mode, the hot water function can then be in operation for longer than
30 minutes.
Info! When hot water only is required, during the summer for instance, or when
there is no requirement for hot water, no settings need to be made; the boiler looks
after this function automatically.
WARNING
VARNING
AVERTISSEMENT
WARNUNG
ADVARSEL
VAROITUS
ADVERTENCIA
AVVERTENZA
WAARSCHUWING
SCALDING HAZARD
Since the hot water and the glycol heating uid is heated simultaneously, the
hot water can be very hot when a high level of heating is required.
NOTICE
If the pump operation function has been set to Cont., see section 2:11 point 17,
this option cannot be selected.
NOTICE
If night or day mode is activated (see section 2:11 point 1 and 2) and the time
is within the scheduled period a moon or a sun will appear beside the temp
setting. The temperature set will be the one of the mode shown below.
2:5 DOMESTIC HOT WATER
The boiler is tted with a built-in hot water boiler which can hold approximately 8.5 litres. The boiler can equally well
be used without there being any freshwater in the boiler. There are three different settings for hot water: no hot water,
normal operation and more hot water.
Functions marked with a (*) are accessories, which are not installed on all vehicles,
refer to the vehicle manufacturer’s instructions.
NOTICE
If night,day or antimicrobial mode is activated (see section 2:11 point 1,2 and
14) and the time is within the scheduled period a moon,sun or the antimicrobial
symbol will appear inside the hot water setting.The hot water setting will be the
one of the mode shown below.
+22°C Night mode
+22°C Day mode
Night mode
Day mode
Antimicrobial
mode
19
GB
2:7 HEATING WITH GAS
Proceed as follows to activate heating with gas. A priority can be set when selecting both electricity and gas, see sec-
tion 2:11 point 3.
1. Start gas operation by pressing the LPG ame symbol. The LPG symbol is
activated and changes colour to green.
2. The settings are now complete and the boiler will work at the set tempera-
ture.
3. To switch off gas operation, press the LPG ame symbol. It will now
change to blue.
1 kW
+22°C
ACC
1. Set the desired temperature.
2. Press the blue ACC button, the button
turns green (see g. 2) and the ACC
function is switched on, but is not
necessarily in operation. If gas and/or
electricity is switched on, AC and the
boiler work to deliver the temperature
set, regardless of whether heat or
cooling is needed in the vehicle. To turn
off the ACC function, press the ACC
button and it becomes blue.
3. To turn AC lighting off and on,
press the button rapidly. When
the button is kept pressed in,
the light changes from dark to
light and then back (light to dark)
and so on in 8 brightness levels.
When the button is released it
stays at the current brightness.
This button is only visible when
an AC* with in-built light is con-
nected.
2:6 HEATING WITH ELECTRICITY
Proceed as follows to activate heating with electricity. The more power (wattage) you select, the quicker heating will
take. A priority can be set when selecting both electricity and gas, see section 2:11 point 3.
The boiler uses no more power than is needed, even if it is set for 3kW.
1. Use the + or - button to switch
on the electric heating and toggle between the various power modes (Off,
1 kW, 2 kW or 3 kW) The set value will be displayed on the screen. The
activated mode is indicated by the + button changing colour to green. If
a *load monitor is installed and set, the boiler will not use more electricity
than it is capable of even if 3 kW is selected.
2. The settings are now complete and the boiler is working at the set
temperature.
3. To switch off electrical operation, use the - button to toggle to Off.
1 kW
+22°C
ACC
NB. Temperature sensors that are used
when fully automatic climate control
is in operation must be positioned so
that they are inuenced equally by the
heat from the Alde heating system and
the air from the AC. In certain cases
it can be an advantage to use Alde’s
temperature sensor
(part no. 3010 638) .
1 kW
+22°C
ACC
1 kW
+22°C
ACC
1 kW
+22°C
ACC
Figure 1 Figure 3
2:8 *FULLY AUTOMATIC CLIMATE CONTROL (ACC)
If a Truma AC is connected up to the Alde, then the ACC button is visible and it is possible to control ACC from the panel. This
function makes it possible to have fully automated climate control for both heating, cooling and hot water. The button is grey if
not installed or if 230 V is disconnected. With an outside temperature sensor
(part no. 3010 299) tted, ACC function is improved:
operation of the AC is modied in line with the outdoor temperature.
Figure 2
Functions marked with a (*) are accessories, which are not installed on all vehicles,
refer to the vehicle manufacturer’s instructions.