VENTS AOE Series Air Heating Unit with Electric Heater User Manual

VENTS AOE Series Air Heating Unit with Electric Heater User Manual

SAFETY REQUIREMENTS

• Read the user’s manual carefully prior to the operation and installation of  the unit.
• Installation and operation of the unit shall be performed in accordance with the present user’s manual as well as the provisions of all the applicable local and national construction, electrical and technical codes and standards.
• The warnings contained in the user’s manual must be considered most seriously since they contain vital personal safety information.
• Failure to follow the safety regulations may result in an injury or unit damage.
• Read the manual carefully and keep it as long as you use the unit.
• While transferring the unit control the user’s manual must be turned over to the receiving operator.

Symbol legend used in the manual:
Warning!
Do not!

UNIT MOUNTING SAFETY PRECAUTIONS

| The unit must be disconnected from the power supply prior to every installation or repair operation.| | The unit must not be operated outside the temperature range stated in the user’s manual or in aggressive or explosive environments.
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| Do not install heating equipment or any other equipment close to the unit cable.| | Do not use damaged equipment or conductors to connect the unit to power mains.
| While installing the unit follow the safety regulations specific to the use of electric tools.| | Unpack the unit with care.
| Do not change the power cord length at your own discretion. Do not bend the power cord. Avoid damaging the power cord.| | Use the unit as intended only.

UNIT OPERATION SAFETY PRECAUTIONS

| Do not carry out the unit maintenance with wet hands.| | Do not wash the unit with water. Protect the unit electric parts from water ingress.
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| Do not block the air intake and exhaust vents during the unit operation.| | Disconnect the unit from power supply prior to maintenance.
| Do not let children operate the unit.| | Do not damage the power cable while operating the unit. Do not put any objects on the power cable.
| Keep combustible gases and inflammable products away of the unit.| | Do not open the operating unit.
| In case of unusual sounds, smoke disconnect the unit from power supply and contact the service centre.| | Do not let air flow from the unit be directed to the open flame devices or candles.

INTRODUCTION

This user’s manual includes technical description, operation, installation and mounting guidelines, technical data for the air heating unit with electric heater AOE, hereinafter referred as the unit.

USE

The unit is designed for air heating of medium up to large premises, such as industrial halls, storage facilities, workshops, sport halls, trade halls, greenhouses, etc. The unit is designed for operation in moderate and cold climate conditions.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, coarse dust, soot and oil particles, sticky substances, fibrous materials, pathogens or any other harmful substances.

**** THE UNIT IS NOT INTENDED TO BE USED BY CHILDREN, PHYSICALLY OR MENTALLY DISABLED PERSONS, PERSONS WITH SENSORY DISORDER, PERSONS WITH NO APPROPRIATE QUALIFICATION.
ANY OPERATIONS WITH THE UNIT MUST BE PERFORMED ONLY BY PROPERLY QUALIFIED PERSONNEL AFTER THE APPROPRIATE SAFETY BRIEFING.
THE UNIT INSTALLATION SITES MUST PREVENT ACCESS BY UNATTENDED CHILDREN.

DELIVERY SET

• AOE unit — 1 item;
• User’s manual – 1 item;
• Packing box – 1 item;

DESIGNATION KEY

MAIN TECHNICAL PARAMETERS

The unit is designed for indoor application with the ambient temperature ranging from -30 °C up to +40 °C and relative humidity up to 80%. The unit is classified as a class I electrical appliance.
The unit design is regularly improved, so some models may slightly differ from those ones described in this manual.

UNIT OVERALL DIMENSIONS, MM

АОЕ 9, 12, 15

**АОЕ 18, 24, 30

**

UNIT TECHNICAL PARAMETERS

DESIGN AND OPERATING LOGIC

The unit is designed for indoor air heating by means of the electric heater and uniform air flow distribution with the fan and louvre shutters.
The special unit design enables quick air heating in large premises due to high efficient electric heater and a powerful fan. The electric connections and control connections are performed in a terminal box at the side unit panel.

UNIT DESIGN
 

UNIT OPERATING LOGIC

The unit is equipped with two emergency thermal switches:

• automatic self-resettable thermal switch with response temperature +50°C.
• manually resettable thermal switch with response temperature +90 °C. The manually resettable thernal switch is restarted by pressing a button.

UNIT MOUNTING AND SET-UP

**** THE UNIT INSTALLATION IS ALLOWED BY QUALIFIED PROFESSIONALS AFTER CAREFUL STUDY OF THE USER’S MANUAL.

While mounting the unit provide the minimum required access to the unit for maintenance and repair.

The unit is designed for wall mounting or mounting to any other vertical surface or ceiling mounting with fixing bracket.

While mounting the unit provide free air flow to the unit intake opening. The minimum distance from the wall or the ceiling to the unit is 300 mm.

WARNING!
REDUCING MINIMUM DISTANCE FROM THE UNIT TO THE WALLS OR CEILING ADVERSELY AFFECTS AERODYNAMIC AND HEATING CHARACTERISTICS AND THE UNIT SERVICE LIFE.

UNIT INSTALLATION WITH MKP-AOW MOUNTING KIT

The mounting kit MKP-AOW (available upon separate order) is used for ceiling mounting of the unit with mounting studs or chains.
The unit mounting example with the mounting kit MKP-AOW is shown below.

UNIT INSTALLATION WITH THE MOUNTING BRACKET MK-AOW 25 AND MK-AOW 40

The mounting bracket MK-AOW (available upon separate order) is used for wall or ceiling mounting.
The mounting bracket MK-AOW 25 is designed for installation of the units AOE 9, AOE 12 and AOE 15G. The mounting bracket MK-AOW 45 is designed for mounting of the units AOE 18, AOE 24 and AOE 30. Unit installation example with MK-AOW is shown below.

WALL SURFACE MOUNTING

CEILING MOUNTING

UNIT INSTALLATION WITH MKU-AOW 25 AND MKU-AOW 40 MOUNTING BRACKETS

The mounting bracket MKU (available upon separate order) is designed for wall or ceiling mounting and installation at the angle of 30° and 45°.
The mounting bracket MKU-AOW 25 is used for mounting of the units AOE 9, AOE 12 and AOE 15.
The mounting bracket MKU-AOW 40 for the units AOE 18, AOE 24 and AOE 30. Unit installation example with MKU-AOW is shown below.

**MOUNTING AT RIGHT

ANGLE MOUNTING AT THE ANGLE 30°

MOUNTING AT THE ANGLE 45°
**

The unit operating area is shown below

CONNECTION TO POWER MAINS

**** DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS. CONNECT THE UNIT TO A CORRECT INSTALLED SOCKET WITH A GROUNDED TERMINAL. ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS.

The unit must be operated only jointly with an automation system that enables the following functions:

1. Disabling power supply to the heater when the fan is off.
2. Air supply to the electric heating elements for heat removal within 2 minutes after the unit is off.
3. Maintaining minimum air speed 2 m/s to avoid heating elements overheating.
4. Power supply cut-off in case of overheating of the electric elements by means of the thermal switches mounted inside of the heater casing
5. Automatic heating capacity control to keep the maximum air temperature downstream of the electric heater +40 °C to avoid the heater overheating and reducing its service life.

The recommended suitable automation system for AOE 9, AOE 12, AOE 15 models is the control unit UET 15D and for the models AOE 18, AOE 24, AOE 30 is UET 30 D. The control unit UET and the matching mounting kit are available upon separate order. In this case replace the terminal box with a respective control unit and connect it to the internal terminal blocks of AOE unit in compliance with the wiring diagram stated in the UET user manual.

The unit with a selected control system is rated for connection to three-phase ac 400 V / 50 Hz power mains. Connection to power mains of the unit with any control system must be performed with insulated, durable and heat-resistant conductors (cables, wires).

The external power input 400 V / 50 Hz must be equipped with an automatic circuit breaker built into the stationary wiring to disconnect all the power mains phases. The circuit breaker QF position must ensure free access for quick power-off of the unit. The circuit breaker trip current must be in compliance with the current consumption of a specific AOE model.

The recommended circuit breaker trip current and the cable cross sections for various AOE models are given un the table below.

However, the conductor selection shall be based on the maximum permissible wire heating depending on the wire type, its insulation, length and installation method (i.e. overhead, in channels or inside the walls).

Unit name| Rated circuit breaker trip current [A]| Number of conductors and cross section [mm 2 ]
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АОЕ-9| 20| 5х2,5
АОЕ-12| 25| 5х2,5
АОЕ-15| 31,5| 5х4,0
АОЕ-18| 40| 5х6,0
АОЕ-24| 50| 5х10,0
АОЕ-30| 63| 5х10,0

Enabling access to the unit terminal blocks:

1. Remove four screws from the terminal box lid.

2. Remove the lid.

TERMINAL BLOCKS INSIDE OF THE TERMINAL BOX

Terminal block X1 (in the control circuit):
RT1 – temperature sensor;
TK1 – self-resettable thermal switch (normally closed contact), response temperature +50 °C;
TK2 – manually resettable thermal switch (normally closed contact), response temperature +90 °C;
Connect the thermal switch contacts in series to the circuit of the starter (contactor) actuating coil that starts the unit or the heater. In case of overheating one of the contacts gets broken and switches the starter actuating coil off to cut power off and stop the motor.

Terminal block X2 (heaters):
L1, L2, L3 – phases (for AOE 9,12,15);
1L1, 1L2, 1L3, 2L1, 2L2, 2L3 – phases (for AOE 18,24,30);
N – neutral;
PE – protecting grounding.

Terminal block X3 (fan):
L – phase;
N – neutral.
The fan, the heaters, the thermal switch and the temperature sensor are mounted on side of the unit, refer to the wiring diagram in page 11.

UNIT WIRING DIAGRAM
АОЕ 9, АОЕ 12, АОЕ 15

АОЕ 18, АОЕ 24, АОЕ30

The emergency thermal switches are actuated in case of unscheduled power outage or wrong selected control system.
The automatically resettable thermal switch with response temperature +50 °C resets to operating condition after the heater cooling.
Reset of the manually resettable thermal switch with response temperature +90 °C is as follows:

• Disconnect the unit from power mains.
• Let the heater fully cool down.
• Remove the emergency thermal switch cap.
• Press the Reset button using a rod of non-conducting material.
• Troubleshoot the unit overheating and make steps to prevent it.

MAINTENANCE

Regular routine maintenance is required. The unit must be cleaned of dust once in year by means of air blushing. Disconnect the unit from power mains prior to the unit cleaning.

TROUBLESHOOTING

Possible faults and troubleshooting

sure that the unit is properly connected to power mains and make any corrections, if necessary.
Motor is jammed, the impeller are clogged.| ВTurn the unit off. Troubleshoot the motor jam and the impeller clogging. Clean the blades. Restart the unit.
Automatic switch tripping following the unit turning on.| Overcurrent resulted from short circuit in the electric circuit.| Turn the unit off. Contact the service centre.
Low air flow.| Low set fan speed.| Set higher speed.
Control system malfunction.| Turn the unit off. Contact the service centre.
Heater malfunction.| Control system malfunction.| Turn the unit off. Contact the service centre.
High noise, vibration.| The impeller is soiled.| Clean the impeller.
The fan or casing screw connection is too loose.| Tighten the fan or casing screw connection against stop.

STORAGE AND TRANSPORTATION RULES

Store the unit in the manufacturer’s original packing box in a dry ventilated premise at the temperatures from +5 °C up to +40 °C at the temperature +20 °C.
Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation and sealing deformation.
Use hoist machinery for handling and storage operations to prevent the unit damage. Fulfil the handling requirements applicable for the applicable freight type.
Transportation with any vehicle type is allowed provided that the unit is protected against mechanical and weather damage.
Avoid any mechanical shocks and strokes during handling operations.

MANUFACTURER’S WARRANTY

The manufacturer hereby warrants normal operation of the unit over the period of 24 months from the retail sale date provided the user’s observance of the transportation, storage, installation and operation regulations.
Should any malfunctions occur during the unit operation through the manufacturer’s fault during the warranty period the user is entitled to elimination of faults by means of warranty repair performed by the manufacturer.
The warranty repair includes work specific to elimination of faults in the unit operation to ensure its intended use by the user within the warranty period. The faults are eliminated by means of replacement or repair of the complete unit or the faulty part thereof.

The warranty repair does not include:

• Routine maintenance;
• Unit installation / dismantling;
• Unit setup.

To benefit from warranty repair the user must provide the unit, the user’s manual with stamped sale date and the payment document certifying the purchase. The unit model must comply with the one stated in the user’s manual.
Contact your Seller for warranty service.

The manufacturer’s warranty does not apply to the following cases:

• User’s failure to provide the unit with the entire delivery package as stated in the user’s manual or with missing component parts previously dismounted by the user;
• Mismatch of the unit model and make with the respective details stated on the unit packing and in the user’s manual;
• User’s failure to ensure timely technical maintenance of the unit;
• External damage to the casing (excluding external modifications of the unit as required for its installation) and the internal components of the unit;
• Alteration of the unit design or engineering changes of the unit;
• Replacement and use of the unit assemblies, parts and components not approved by the manufacturer;
• Unit misuse;
• User’s violation of the unit installation regulations;
• User’s violation of the unit control regulations;
• Unit connection to the power pains with a voltage different from the one stated in the user’s manual;
• Unit breakdown due to voltage surges in the power mains;
• User’s discretionary repair of the unit;
• Unit repair performed by any non-authorised by the manufacturer persons;
• Expiry of the unit warranty period;
• User’s violation of the established regulations specific to the unit transportation;
• User’s violation of the unit storage regulations;
• Wrongful acts against the unit committed by third persons;
• Unit breakdown due to circumstances of insuperable force (fire, flood, earthquake, war, hostilities of any kind, or blockade);
• Missing seals if provided by the user’s manual;
• Failure to provide the user’s manual with the sale date stamp;
• Missing payment document certifying the unit purchase.

**** FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG AND TROUBLE-FREE OPERATION OF THE UNIT.

**** USERS’ CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE UNIT, THE PAYMENT DOCUMENT AND THE USER’S MANUAL WITH THE SALE DATE STAMP.

ACCEPTANCE CERTIFICATE

Is recognized as serviceable.
The unit complies with the requirements according to the EU norms and directives, to the relevant EU-Low Voltage Equipment Directives, EU-Directives on Electromagnetic Compatibility.
We hereby declare that the following product complies with the essential protection requirements of Electromagnetic Council Directive 2004/108/EC, 89/336/EEC and Low Voltage Directive 2006/95/EC, 73/23/EEC and CE-marking Directive 93/68/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility. This certificate is issued following test carried out on samples of the product referred to above. Assessment of compliance of the product with the requirements relating to electromagnetic compatibility was based on the following standards.
Quality Inspector’s Stamp|

SELLER’S INFORMATION

Shop name|
---|---
Address|
Telephone|
E-mail|
Sales date|

This is to certify delivery of the complete unit with the user’s manual. The warranty terms are acknowledged and accepted, the list of service centres is received.

Customer’s signature|

Seller’s seal

MOUNTING CERTIFICATE

Air heating unit with electric heater has been connected to power mains pursuant to the requirements stated in the present user’s manual.

Company name|
Address|
Telephone|
Installation technician’s full name|
Installation date:| Signature:

This is to certify that the works specific to the unit installation have been performed in accordance with all the applicable provisions of local and national construction, electrical and technical codes and standards. The unit operates normally as intended by the manufacturer.

Signature:

**Installation technician’s company seal

**

WARRANTY CARD

Seller’s seal

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