Instruction manual - EN DC Mini Air Conditioners with variable speed compressors
EC – Declaration of conformity Machine Directive 2006/42/EC Annex IIA The undersigned manufacturer – especially the company authorized person – the company Seifert mtm Systems Ltd. HF 09/10, Hal Far Industrial Estate, Birzebbuga. BBG3000 Malta Tel: +356 22 20 70 00 Fax: +356 21 65 90 83 E-mail: info@seifert-mtmsystems.com Internet: www.seifert-mtmsystems.
Contents 1 Introduction 4 1.1 Seifert mtm Systems 4 1.2 DC mini air conditioner 4 1.3 Legal regulations 5 1.4 Instruction manual 6 2 Safety instructions 8 2.1 Primary safety instructions 8 2.2 General safety instructions 9 3 Technical information 11 3.1 Concise unit description 11 3.2 Functional principles 11 3.3 Description of operation 11 3.4 Unit controls 11 3.5 Pictorial description 12 3.6 Membrane Key Pad 13 4 Mounting and operational start-up 14 4.
1.1 Seifert mtm Systems Seifert mtm Systems designs and manufactures thermal management systems including heat exchangers, air conditioners, fan trays, controllers, heat sinks and thermoelectric products. 1.2 DC Mini Air Conditioner Type of Unit The unit is a DC mini air conditioner with a variable speed compressor. • • • Year of manufacture (see data label) Model (see data label) CE- Certification Manufacturer: Seifert mtm Systems Malta Ltd HF 9/10, Ind. Est.
The information, data and instructions in this instruction manual are current at the time of printing. We reserve the right to make technical changes to the unit in the course of its development. Therefore no claims can be accepted for previously delivered units based on the information, diagrams or descriptions in this manual. No liability can be accepted for damage and production disruption caused by: • • • • • Operations outside of the instruction manual. Operator errors. Unauthorized work on the unit.
This instruction manual contains information and instructions to enable the user to work safely, correctly and economically with and on the unit. Only when the manual is understood and abide by can: • Danger be avoided. • Repair costs and stoppages reduced. • Reliability and working life of the unit can be improved and extended.
Attention Indicates possible burns from hot components. Attention Indicates possible damages to the unit. Instruction Indicates possible danger to the environment. Structure and formation of the safety instructions All safety instructions in this manual have a standardized structure. A safety instruction is made up of several parts: • • • • A pictogram. A signal word denoting the degree of danger. An instruction denoting the type of danger.
2.1 Primary safety instructions When delivered the unit meets current technical standards and can be safely taken into operation. However, danger could originate when: • Unauthorized or untrained personnel work on or with the unit. • The unit is misused. This could result in danger to persons, the unit and other property or material of the user. Instruction manual The submitted instruction manual serves to enable the user to work safely and correctly with and on the unit.
Only specialists are allowed to work on the unit. Unauthorized personnel must be prohibited from working on the unit. Operating personnel must inform their superiors imme immediately diately if any malfunction on the unit becomes apparent.
Damage to the unit through the use of inappropriate cleaning materials. Please do not use aggressive cleaning materials. Danger through incorrect work on the unit. Only specialized personnel are allowed to maintain and clean the unit. Regular maintenance and cleaning intervals must be kept to in order to ensure that the unit remains in perfect working condition and has a long working life. Damage to the environment through unauthorized disposal.
3.1 Concise unit description The air conditioner is used where heat needs to be dissipated from outdoor cabinets in order to protect heat sensitive components. The unit has two completely separate air circuits which ensure that the clean cabinet air does not come into contact with the ambient air which may well be dirty or polluted.
The pictorial description shows the main components of the control cabinet air conditioner in pictorial form to aid recognition and orientation. The individual components are numbered. Fig: Diagram of outdoor cabinet air conditioner 1. Air intake cabinet side. 2. Radial fan cabinet side. 3. Evaporator. 4. Air outlet cabinet side. 5. Compressor. 6. Air intake ambient side. 7. Radial fan ambient side. 8. Condenser. 9. Air outlet ambient side. 10. Filter dryer. 11. Expansion valve. EN 12 3.
EN 13 3.6 Membrane Key Pad Fig.
Danger Danger from electrical voltage The unit must be mounted by specialist personnel (qualified electricians). The personnel must ensure that the cabinet is disconnected from the electrical supply for the duration of the mounting operation. Therefore take the cabinet out of operation, following the relevant instructions before mounting work commences. Attention Danger through incorrect work on the unit. Only specialists are allowed to put the unit into operation. 4.
Sealing To guarantee that the unit works perfectly ensure that: • the control cabinet is completely sealed (to min. IP54 to EN 60529). • a good seal exists between the control cabinet and the unit. 4.2 Mounting instructions Danger Danger from electrical voltage. Ensure that for the duration of the mounting operation the cabinet is disconnected from the electrical supply.
The mains connection is made via a connection terminal block. To connect the unit to the mains proceed as follows: Take the control cabinet out of operation in the prescribed manner See the connection details on the circuit diagram. Note the connections on the seven pole terminal block from the following table.
Maximum power consumption and current are stated on the data label and in the unit’s instruction sheet. When an air-conditioner alarm is given please see section 6 of this manual. Door contact switch connection When delivered the door contact terminals are bridged. If required the unit can be switched on or off via a door contact switch (terminals 1 & 2). To connect the door contact switch: Remove the bridge from terminals 1 and 2. Connect the door contact switch to terminals 1 and 2.
Attention The unit can be damaged by lack of lubricant. To ensure that the compressor is adequately lubricated the oil, which has been displaced during transport, must be allowed to flow back into it. The unit must therefore be allowed to stand for at least 10 mins. after mounting before being connected to the mains and taken into operation. The unit is controlled in relation to the cabinet internal temperature.
FAULT REASON SOLUTION Air conditioner does not start Power supply not or incorrectly connected Connect the power supply correctly Temperature in the control cabinet is below the target value. Wait until the temperature target value is exceeded. The air conditioner will start by itself. If the target value of the control cabinet temperature is too high set a lower target value Door contact open Close the enclosure door or bridge door contact connections.
Fan defective Replace fan In case the problem persists please call us on tel. (+356) 21 2220 7000. ATTENTION: It would be of great help in locating the fault if, before calling us the test-button on the PC-board was pressed, as this should activate both radial fans and the compressor, independent of the cabinet temperature.
Danger Danger from electrical voltage. Maintenance and cleaning must be carried out by specialists (electricians). The personnel must ensure that for the duration of this work the unit and the cabinet are disconnected from the electrical supply and protected against unauthorized reactivation. Danger Danger through incorrect work on the unit. The instructions in the cabinet manufacturer’s manual must be adhered to. Attention Damage to the unit through incorrect maintenance and repair.
The normal working life of the fan is ca. 30.000 working hours under normal conditions. Danger Danger from electrical voltage. Maintenance work on the unit must be carried out by specialists (qualified electricians). The personnel must ensure that for the duration of the work the unit and the cabinet are disconnected from the electrical supply and protected against unauthorized reconnection. Should a fan need replacing: Disconnect the unit from the mains. Remove the required covers.
Attention Malfunction due to transport damage On delivery the carton containing the unit must be examined for signs of transport damage. Any transport damage to the carton could indicate that the unit itself has been damaged in transit which in the worst case could mean that the unit will not function. 8.1. Storage conditions The unit can only be stored in locations which meet the following conditions: • Temperature range: - 10°C to + 70°C • Relative humidity 25°C: max. 95 % 8.2.
EN 24 www.seifert-mtmsystems.com Seifert mtm Systems GmbH Germany Seifert mtm Systems Malta Ltd. Seifert mtm Systems Inc. North America Seifert mtm Systems AG Switzerland Seifert mtm Systems Australia Pty Ltd. Haßlinghauser Str. 156 58285 Gevelsberg HF09/10,Hal Far Industrial Estate, Birzebbuga BBG3000. 75 Circuit Drive, North Kingstown RI 02852 Wilerstraße 16, CH – 4563 Gerlafingen 105 Lewis Road, Wantirna South Victoria 3152 Australia Tel.
