Fan Heater

R-APA Radial Fan Hot Air Appliance; R-APA Radial Fan Hot Air Apparatus is the most suitable device for heating systems in large volumes. Thanks to their compact structure, they can be mounted directly on the wall. R-APA radial appliances have high performance and trouble-free operation. It is produced in 5,000 – 60,000 kcal/h capacities under 90 / 70 °C hot water operating conditions as standard. If desired, production can be made with hot water and steam according to working conditions.

The body is made of high quality galvanized steel resistant to corrosion. For air blowing, a direct coupled high efficiency radial fan with rare blades is used. The heater coil is manufactured with copper tube and aluminum fins. It is manufactured as standard (380 V -50 Hz) or for use in other voltages and frequencies upon request. Class F, S1, IP55 motor is used. It is suitable for use in closed areas, warehouses, hangars, workshops, sports halls, garages and production facilities where the ceiling height exceeds 4m.

Hot air apparatus consists of body, heater coil (coil), fan & motor group and air adjustment louver. The main advantages of the hot air appliance are that it is economical, the volume it covers is small compared to its high heating capacities, and it is user-friendly. By using the water you will draw from the heating system in your building, the hot water in your business or the steam obtained from the steam boiler, you will provide the most economical heating method in a practical way. In addition, there is no need for assembly processes that require expertise, expert personnel and special installation materials. Since the hot air appliance works according to the principle of free discharge and free suction, it is not suitable for duct connection.

In the selection and placement of the hot air appliance, attention should be paid to the homogeneous heating of the space, the blowing of the air in accordance with the working level of the people and the absence of disturbing air currents. In order to ensure homogeneous heat distribution in the space, the number of devices must be calculated correctly. As a general acceptance, each device should have a heating capacity of 8000~16000 kcal/h. The heat power of the hot air appliance depends on the difference between the heating fluid and the air passing through the coil and the air velocity. The higher the air velocity and temperature difference, the higher the heat output of the device. It can reach up to 35000 kcal/h with 90/70 °C hot water in axial fan hot air appliance types and 48000 kcal/h with 90/70 °C hot water in radial fan hot air appliance types.

R-APA Radial Fan Hot Air Appliance Components

Body

The body part of the hot air appliance is manufactured from galvanized sheet of appropriate thickness. Then the interior and exterior surfaces are painted with electrostatic oven paint against corrosion.

Heating Coil Serpentine

Two or three rows of copper pipes and aluminum fins, suitable for the heating capacity of the hot air appliance, are used. Standard copper pipe is used for 90/70 °C hot water usage, and thick-walled copper tube serpentine is used for 110/80 °C superheated water and 3 ATU steam usage. In case of using 6 Atu steam, a specially designed thick-walled copper tube serpentine is used by increasing the wall thickness even more. Heating fluid inlet and outlet connections are threaded as standard. It is manufactured as flanged for steam systems.

Fan ve Motor

Two types of fans, radial and axial, are used in the hot air apparatus. In general, if the height of the place where the devices will be operated is less than 3-4 meters, it is recommended to use an axial fan, and in higher volumes, a radial fan hot air appliance should be used. In some series, statically and dynamically balanced, vibration-free, infrequent bladed radial fans are used inside the hot air apparatus. The blowing distances are too long. Because the radial fan used, compresses the air drawn from the environment between its blades and throws it forward rapidly. The silent and safe fan is directly connected to the motor and works with 230 V/50 Hz mains current. In the appropriate series, static and dynamically balanced, vibration-free and silent axial fans connected directly to the motor are used inside the hot air apparatus. Safety is provided by a protection cage. It works with 230 V/50 Hz mains current.

Air Adjustment Louver

The louvers on the blowing side of the hot air appliance can be adjusted to direct the blowing air into the space as desired. It is functional and decorative. It is made of special aluminum extruded profile and anodized coated. Axial hot air appliance can be mounted on the wall with optional suspension feet. Standard holes are drilled on the hanger legs, which are manufactured to carry the weight of the hot air appliance, making it easier to mount on the wall. With the optional wall-mounted mechanical room thermostat, the desired temperature in the room is adjusted. When the set temperature is reached, the hot air appliance fan stops, when the temperature drops, the fan starts again.

The entire product is made of galvanized sheet. Fans are radial fans with backward curved blades. Motors are threephase, IP55 and Class F insulation. The heater coil is manufactured with copper pipes and aluminum fins. It can be mounted directly on the wall.