1. Description
This series of warm air heaters is particularly suited to heating closed areas, such as warehouses, shops, and homes. These heaters comply with the current European directive.
2. Safety Information
IMPORTANT: This heater is not suitable for use by persons (including children) with reduced physical, sensory or mental capacities or with lack of experience or knowledge unless supervised by a person responsible for their safety. Children must be supervised to make sure they do not play with the heater.
IMPORTANT: In order to prevent any risk, even if power supply mains disconnection is foreseen, all cleaning, maintenance, and repair operations requiring access to dangerous parts (e.g., replacing the damaged power supply cable) must be carried out by the manufacturer, its technical support centre, or a person with similar qualification.
IMPORTANT: Comply with all local legislation and current regulations when using the heater.
- Heaters used near tarpaulins, curtains, or other similar covering materials must be a safe distance from them. It is advised to use fire-proof covering material.
- Keep the heater a safe distance from humidity, water, and atmospheric agents to prevent serious damage to the heater.
- Keep the hot parts of the heater a suitable distance from inflammable or thermolabile materials (including the power supply cable).
- Never move, handle, or conduct maintenance on the heater when it is hot, connected to the mains, or in operation.
- Avoid fire hazards by placing the hot or functioning heater on a steady level surface.
- Keep animals at a safe distance from the heater.
- Power on the heater only with a current which has the voltage and frequency values specified on the heater's identification plate.
- Make sure the heater is only connected to suitable mains with a differential switch and suitable earthing.
- If the power supply cable is damaged, it must be replaced by the support centre to prevent any risk.
- Disconnect the heater from the mains power supply when not in use.
- Always disconnect the heater from the mains if temporarily left in unsafe conditions and make sure it cannot be used.
- Never block, not even partially, the heater's air vent or the air outlet.
- Avoid any kind of ducting, either at the air inlet or outlet.
- Do not cover the heater while in operation, it might overheat.
- Ask the support centre to check that the heater is working properly at least once a year and/or as required.
THE MANUFACTURER DECLINES ANY LIABILITY FOR DAMAGE/INJURIES TO PROPERTY/PERSONS DERIVING FROM IMPROPER USE OF THE HEATER.
ONLY SPECIALISED PERSONNEL AUTHORISED BY THE MANUFACTURER CAN PERFORM WORK ON THE HEATER.
3. Unpacking
WARNING: The packaging material is not a toy. Keep the plastic bag out of the reach of children; danger of suffocation!
Remove all packaging material used to deliver the heater and dispose of it in compliance with current standards.
Remove all items from the packaging.
Check for any damage incurred during transport. If the heater appears damaged, immediately inform the dealer from whom it was purchased.
4. Assembly
These heaters are equipped with handles, supports, etc., depending on the model. These parts, which come with the relative nuts and bolts, are in the heater's packaging. In any case, many heater models are already assembled by the manufacturer and are therefore ready to use.
If the heater is not equipped with a power supply cable, ELECTRICAL CABLES MUST BE USED WITH COMPONENTS IN ACCORDANCE WITH LOCAL AND/OR NATIONAL ELECTRICAL DIRECTIVES. THE MANUFACTURER DECLINES ANY LIABILITY FOR DAMAGE/INJURIES TO THE HEATER AND/OR PERSONS DERIVING FROM INCORRECT CONNECTION OF THE POWER SUPPLY CABLE.
5. Control Panel
Refer to Diagram 2 for control panel identification.
- A: Room thermostat knob
- B: Power selector
- C: "RESET" button (if present)
6. Operation
WARNING: You are required to read, understand, and follow the "INFORMATION ON SAFETY" before starting the heater in order to use it correctly and avoid risks.
WARNING: Make sure the power supply cable is intact and that the features of the mains power supply match the ones on the heater's technical data plate.
Switch-On
Never use the heater without first assembling all the components correctly (where applicable) and making sure the heater is positioned on a perfectly flat, stable, and level surface.
Connect the heater to the mains (Refer to Diagram 3).
Turn the power selector to the desired mode (Refer to Diagram 4):
- "VENTILATION": Heater operates in ventilation mode only.
- "I": Heater operates at heating power 1.
- "II": Heater operates at heating power 2.
CAUTION: A SERIES OF SENSORS CHECK THAT THE HEATER IS OPERATING CORRECTLY AND STOPS THE APPLIANCE IN THE EVENT OF A SERIOUS FAULT. RESETTING IS NOT AUTOMATIC; IT MUST BE PERFORMED MANUALLY AFTER THE HEATER HAS COOLED DOWN COMPLETELY. ELIMINATE THE POSSIBLE CAUSE OF THE HEATER BLOCK (E.g., OBSTRUCTED AIR VENT, IMPAIRED AIR SUPPLY, ETC.) AND GENTLY PRESS THE "RESET" BUTTON (Refer to Diagram 5) (if present). IF, AFTER A FEW ATTEMPTS TO RESUME OPERATION, THE HEATER DOES NOT WORK, CONTACT THE SUPPORT CENTRE.
Switch-Off
Set the power selector to "0/OFF" (Refer to Diagram 6) and leave the fan working until it comes to a complete stop.
Disconnect the heater from the mains (Refer to Diagram 7).
CAUTION: FOR PROPER SWITCH-OFF, DO NOT DISCONNECT THE HEATER FROM THE MAINS BEFORE THE FAN HAS COMPLETELY STOPPED MOVING. INCORRECT SWITCH-OFF MAY BLOCK THE PRODUCT. TO UNLOCK THE HEART, GENTLY PRESS THE "RESET" BUTTON (Refer to Diagram 5) (if present).
7. Storage
Always disconnect the heater from the mains (Refer to Diagram 7) when not in use and wait a few minutes for it to cool down completely before putting it away. Put it back in a dry place and protected from dust. When the heater is used again, check the condition of the power supply cable (where present); if in doubt regarding its state, contact the support centre. In any case, have the support centre check that the heater is working properly at least once a year and/or as required.
8. Troubleshooting
| Problem | Possible Cause | Possible Solution |
|---|---|---|
| The heater doesn't work | 1. Power selector set to "0/OFF" 2. Incorrect setting of the room thermostat 3. No power supply 4. Blocked heater | 1. Turn the power selector to the desired mode 2. Make sure the temperature set on the room thermostat is higher than the outdoor temperature 3a. Insert the power supply cable correctly 3b. Make sure your mains power supply is working correctly 3c. Contact the support centre 4a. Turn the heater back on by pressing the "RESET" button 4b. Contact the support centre |
| The motor doesn't work | 1. Faulty motor 2. Blocked fan | 1. Contact the support centre 2a. Remove any obstructions 2b. Contact the support centre |
| The heater doesn't heat | 1. Power selector set to "VENTILATION" 2. Faulty internal appliance | 1. Turn the power selector to the desired heating power 2. Contact the support centre |
| Reduced airflow | 1. Obstructed air vent 2. Faulty motor | 1a. Remove any obstructions 1b. Contact the support centre 2. Contact the support centre |
Technical Data
The following table provides technical specifications for the Master Fan Heater series.
| Model | Heat Output (kW) | Heat Output (kcal/h / Btu/h) | Airflow (m³/h) | Voltage (V) / Frequency (Hz) | Current (A) | IP Rating |
|---|---|---|---|---|---|---|
| B 2IT | 2 | 1,720 kcal/h / 6,820 Btu/h | 184 m³/h | ~220-240 V / 50-60 Hz | 8.7 A | IP24 |
| B 3,3IT | 3.3 | 2,866 kcal/h / 11,260 Btu/h | 288 m³/h | ~220-240 V / 50-60 Hz | 14.5 A | |
| B 5IT | 5 | 4,300 kcal/h / 17,060 Btu/h | 510 m³/h | 3~380-400 V / 50 Hz | 7.2 A | IP24 |
| B 9IT | 9 | 7,740 kcal/h / 30,700 Btu/h | 800 m³/h | 3~380-400 V / 50 Hz | 13 A | |
| B 15IT | 15 | 12,900 kcal/h / 51,180 Btu/h | 1,700 m³/h | 3~380-400 V / 50 Hz | 22 A | |
| B 22IT | 22 | 18,900 kcal/h / 75,060 Btu/h | 2,400 m³/h | 3N~380-400 V / 50-60 Hz | 32 A | IP24 |
Other Specifications:
- Auxiliary Electricity Consumption: N/A for all models at nominal or minimum heat output, and in standby mode.
- Type of Heat Input: All models feature "No" for Manual heat charge control (integrated thermostat or room/outdoor feedback), Electronic heat charge control, and Fan assisted heat output.
- Type of Heat Output/Room Temperature Control: All models feature "No" for Single stage heat output and no room temperature control, and Two or more manual stages, no room temperature control. All models feature "Yes" for With mechanic thermostat room temperature control, and "No" for electronic room temperature control options (including day timer or week timer).
- Other Control Options: All listed "Other Control Options" (presence detection, open window detection, distance control, adaptive start, working time limitation, black bulb sensor) are marked as "No" for these models.
Electrical Systems
The following diagrams illustrate the electrical systems for different models. Key components are:
- S: Rotary Switch
- M: Motor
- C: Capacitor
- OT: Overheat Thermostat
- CT: Cooling Thermostat
- T: Adjustable Room Thermostat
- RE: Relay
- L: Coil Of Relay
- R1...6: Heating Elements
Diagram for Models 2... and 3.3...: This diagram shows a basic circuit including a rotary switch (S), motor (M), overheat thermostat (OT), and heating elements (R1), controlled by a relay (RE) and an adjustable room thermostat (T). It includes connections for Line (L1), Neutral (N), and Protective Earth (PE).
Diagram for Model 5...: This diagram shows a more complex circuit for the 5kW model, incorporating additional components like a capacitor (C) and a cooling thermostat (CT), alongside the previously mentioned elements. It includes connections for Line (L1, L2, L3), Neutral (N), and Protective Earth (PE).
Diagram for Models 9..., 15..., 22...: These diagrams illustrate the electrical configurations for the higher wattage models, featuring multiple heating elements (R1-R6) and relays (RE) managed by the rotary switch (S), motor (M), and thermostats (OT, CT, T). Connections include Line (L1, L2, L3), Neutral (N), and Protective Earth (PE).
Conformity Certificates
The product complies with relevant European directives and standards, including CE and UKCA conformity certificates. Full details are provided in the original documentation.
Disposal and Recycling
This product is designed and manufactured with top-quality materials and components that can be recycled and reused. Please follow local regulations for the disposal of electrical and electronic products. Do not dispose of old products as normal domestic waste. Correct disposal helps prevent negative consequences for health, the environment, and mankind.
Environmental protection is important. Please recycle any unwanted materials as opposed to disposing them as general waste. It is recommended that the original packaging be retained and used to store the product when not in use for prolonged periods. If this is not applicable, ensure materials are sorted and recycled in accordance with local regulations.
Information regarding disposal is available in multiple languages within the original manual.
Warranty and Disclaimer
Please refer to the manufacturer's terms and conditions for warranty information.
IMPORTANT: No liability will be accepted for the incorrect use of this product.
Dantherm S.p.A. is the manufacturer, located at Via Gardesana 11, 37010 Pastrengo (VR), Italy. Contact: +39 045 6770533, email: info.it@danthermgroup.com.
HSC Group UK also provides support, with contact details for Nottingham (0115 946 1988, sales@hscgroupuk.co.uk) and London (0208 830 3333, sean@hscgroupuk.co.uk). Their website is www.hscgroupuk.co.uk.
All images and copy within this user manual are protected by copyright.
