Related Manuals for Stulz CVC 07 001yy
Summary of Contents for Stulz CVC 07 001yy
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Page 1: Air Conditioning
A/C UNITS MINI-AIR 230/1/50-60 400/3/50 Index 30A Edition 12.03 AIR CONDITIONING PRECISION A/C UNITS OPERATING INSTRUCTIONS... - Page 2 E/1203/30A/2...
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Page 3: Table Of Contents
Contents Page Introduction Technical Data Capacity Diagrams Dimensions 1. Unpacking and Inspection 2. Unit Identificaton 3. Operating Principle 4. Precautions 5. Safety Considerations 6. Precautions when handling the Unit 7. Installation 8. Vibrations 9. Mechanical Parts 10. Cooling Components 11. Motors 12. -
Page 4: Introduction
PURPOSE OF THE INFORMATION CONTAINED IN THIS MANUAL: CORRECT HANDLING performed by unskilled personnel CORRECT INSTALLATION performed by skilled personnel; CORRECT START-UP performed by personnel trained by STULZ; CORRECT MANAGEMENT performed by skilled personnel; CORRECT MAINTENANCE performed by skilled personnel; CORRECT ORDER FOR SPARE PARTS, made by skilled personnel;... - Page 5 IN THE EVENT OF SALE OF THE PRODUCT Please advise STULZ GmbH of the address of the new owner so as to enable the dispatch of any updates to the manual, otherwise STULZ GmbH shall be relieved of any subsequent...
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Page 6: Technical Data
Technical Data CVC 07 001yy - CVC 20 001yy (at 50 Hz) CVC 07 0 01yy CVC 14 0 01yy CVC 20 0 01yy Cooling capacity L35L35 - (DIN3168) 1400 2000 Cooling capacity L35L50 - (DIN3168) 1170 1700 Refrigerant R134a... - Page 7 Technical Data CVC 28 001yy - CVC 41 001yy (at 50 Hz) CVC 28 0 01yy CVC 41 0 01yy Cooling capacity L35L35 - (DIN3168) 2700 3900 Cooling capacity L35L50 - (DIN3168) 2300 2900 Refrigerant R134a R134a Condenser fan Number/Type 1/Ø250 radial 1/Ø250 radial Air flow...
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Page 8: Capacity Diagrams
Capacity diagram CVC 07 001 yy (at 50 Hz) Cooling capacity [W] Inside temp. [°C] Outside temperature [°C] E/1203/30A/8... - Page 9 Capacity diagram CVC 14 001 yy (at 50 Hz) Cooling capacity [W] Inside temperature [°C] Outside temperature [°C] E/1203/30A/9...
- Page 10 Capacity diagram CVC 20 001 yy (at 50 Hz) Cooling capacity [W] Inside temp. [°C] Outside temperature [°C] E/1203/30A/10...
- Page 11 Capacity diagram CVC 28 001 yy (at 50 Hz) Cooling capacity [W] Inside temperature [°C] Outside temperature [°C] E/1203/30A/11...
- Page 12 Capacity diagram CVC 41 001 yy (at 50 Hz) Cooling capacity [W] Inside temp. [°C] Outside temperature [°C] E/1203/30A/12...
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Page 13: Dimensions
Dimensions Type CVC 07 CVC 14-20 1060 CVC 28-41 1310 E/1203/30A/13... -
Page 14: Unpacking And Inspection
Any damage that is encountered must be notified to the carrier by registered letter within 8 days of receipt. The carrier is responsible for any damage caused during shipment. STULZ is not responsible for damage caused to the merchandise by the shipper but will do all in its power to assist customers in these situations. -
Page 15: Unit Identification
2. Unit Identification This unit can be correctly identified by the Constructor Trademark technical name-plate containing all the Model This identifies the product family. information for its correct use. Series Product identification number. In addition to the manufacturer's identification Date Date on which the product is placed data and the product trade-marks, the name- on the market and date of... -
Page 16: Operating Principle
3. Operating Principle STULZ conditioners are designed to cool electric cabinets with IP54 protection level and they are suitable for the operation in industrial environments. Their use allows to eliminate problems caused by high temperatures, dirt and humidity which are present in the environment. - Page 17 Air flow inside the unit INTERNAL SIDE EXTERNAL SIDE Condenser Evaporator fan Evaporator Condenser fan Compressor NOTE: The evaporator air flow of Mini-Air CVC07 is different from the illustrated air flow. The evaporator air intake is from the top of the unit instead of as for the other units from the front.
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Page 18: Precautions
If traces of oil are present on the unit, which point to a loss of coolant, on the inside or the outside, then the equipment must be thoroughly checked before starting the unit and, if necessary, the technical department of your local STULZ partner should be contacted. 5. Safety Considerations The installation and handling of cooling units may be hazardous as they form a pressurised system with electric components. -
Page 19: Precautions When Handling The Unit
6. Precautions when handling the Unit To move this unit, when it is still packaged, use a fork lift or a system using cables or chains. When the packing is removed, use two M6 eyebolts, attaching them to the upper part of the cooling unit, where appropriate holes have already been arranged. - Page 20 WARNING! Do not obstruct circulation by air being sucked into or expelled from the air conditioner. The cooling unit must be installed as high as possible; If installed on a door, make sure the hinges can withstand the weight of the unit; make sure the electric cable is not torn or damaged when the door is closed;...
- Page 21 Cut-out for CVC 07 001yy (Type 1) common cut-out for inlet and outlet Provide a baffle to separate the condenser inlet/outlet airflows ! 4 x Ø8 E/1203/30A/21...
- Page 22 Cut-outs for CVC 07 001yy (Type 2) separate cut-outs for inlet and outlet 4 x Ø8 E/1203/30A/22...
- Page 23 Cut-out for CVC 14 001yy - CVC 20 001yy (Type 1) common cut-out for inlet and outlet 31.5 31.5 Provide a baffle to separate the condenser inlet/outlet airflows ! 6 x Ø8 E/1203/30A/23...
- Page 24 Cut-outs for CVC 14 001yy - CVC 20 001yy (Type 2) separate cut-outs for inlet and outlet 31.5 31.5 6 x Ø8 E/1203/30A/24...
- Page 25 Cut-out for CVC 28 001yy - CVC 41 001yy (Type 1) common cut-out for inlet and outlet Provide a baffle to separate the condenser inlet/outlet airflows ! 6 x Ø8 39.5 39.5 E/1203/30A/25...
- Page 26 Cut-outs for CVC 28 001yy - CVC 41 001yy (Type 2) separate cut-outs for inlet and outlet 6 x Ø8 39,5 39,5 E/1203/30A/26...
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Page 27: Vibrations
8. Vibrations The cooling unit does not produce any significant vibrations as the parts which generate them are installed on anti-vibration devices. 9. Mechanical Parts 9.1 STRUCTURE These machines are composed using self-supporting panels. These are made of passivated and baked enamel sheet metal to guarantee resistance against corrosion*. -
Page 28: Motors
10.6 EVAPORATOR This is the part where the transfer of the heat, contained in the air in the cabinet, to the refrigerant gas takes place . It consists of copper pipes and aluminium fins. (suitable only for non-corrosive and non-salty environments) 11. -
Page 29: Control, Monitoring And Safety Components
STULZ engineering service, by specialized product expert. STULZ air conditioner are equipped with a set of devices designed to ensure proper operation. Intervention by any one of these automatic safety devices is a sign of a malfunction and it is absolutely necessary to eliminate the cause of the malfunction. -
Page 30: Electrical Connections
13. Electrical Connections WARNING! It is absolutely necessary, before making any connections, to use a suitable tester to check the supply voltage. This must be the same as the voltage indicated on the technical data plate. The user must furnish and install, upstream from the unit, an isolating switch with a pre- fuse and capacity as specified on the technical plate in order to be able to perform maintenance on the unit in the absence of electricity. -
Page 31: Start-Up
14. Start-up Supply voltage to the cooling unit. If the temperature in the room is lower than the temperature set on the thermostat the evaporator fan will start and will cause air recirculation in the cabinet. If the temperature in the room is higher than the temperature set on the thermostat then the compressor and the condenser fan will start. -
Page 32: First Checks After Starting The Unit
18.2 EXTRAORDINARY MAINTENANCE INTERVALS Every 3 years or every 10,000 operating hours the unit must undergo a general overhaul either at the manufacturer's factory or at companies authorized by STULZ or by qualified agencies at the customer's own expense. E/1203/30A/32... -
Page 33: Inactivity
18.3 REPLACEMENT OF PARTS To guarantee continuity of service to the units, it is recommended to replace some components according to their MTBF (medium time before failure). You can find the MTBF of the most critical components in the following table: COMPRESSOR: 30,000 operating hours CONDENSER FAN:... -
Page 34: Options
20. Options 20.1 ELECTRICAL REHEAT (only for CVC14/20/28/41) - RSC is supplied when a warming of room air is required. The heating control can be incorporated in the unit by a thermostatic device, possibly with a contactor; or directly from the outside of the cooling unit by the customer's system. The heating element is positioned protruding from the cooling unit in front of the air outlet. - Page 35 20.4 ALUMINIUM CASING - CVCAL With this option, casing of the unit is made of aluminium instead of standard steel zinc plated sheet. As standard, aluminium casing is not painted. 20.5 HIGH/LOW TEMPERATURE ALARM THERMOSTAT - TMC/TMF TMC (option for high temperature signal) and TMF (option for low temperature signal) are mechanical wall-mounted thermostats.
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Page 36: Residual Hazards And Emergency Information
21. Residual Hazards and Emergency Information This unit was designed to reduce danger sources or situations to a minimum. These dangers arise from improper use of the product or from failure to comply with installation and operating instructions. All personnel who work on or near the unit must be familiar with these instructions. 21.1 GENERAL SAFETY PROVISIONS All personnel charged with testing and maintaining the unit must be familiar with the following safety regulations:... - Page 37 21.3.2 TASKS ASSIGNED TO PLANT MANAGERS Plant managers must be informed regarding potential risks in the system and must superintend personnel that works with electrical equipment. Superintending tasks consist of localizing possible risk situations and investigating problems encountered by personnel when performing maintenance. Each defective component must be immediately repaired or replaced.
- Page 38 21.3.6 SAFETY STANDARDS TO COMPLY WITH DURING MAINTENANCE If continuous operation is not required, the system must be turned off. Before beginning work, the following is required: · check the maintenance person and make sure he is not carrying objects which could become conductors;...
- Page 39 21.5 HAZARDS ARISING IN CASE OF FIRE There are no direct dangers. The refrigerant gas, in the presence of flames, generates toxic and corrosive substances. The way to prevent this risk, in view of the relatively small quantities of refrigerant contained in the machine, is to position the unit in adequately ventilated rooms.
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Page 40: Disassembling The Unit
This unit must be disassembled by authorised organisations. STULZ is able and has equipment for disposing of these units and performing almost total recuperation of components without harm to the environment. While awaiting disposal the unit must be kept stored protected from weather. -
Page 41: Faults, Probable Causes, Possible Remedies
.3 Where present, start-up condenser defective; .1 Replace start-up condenser; .4 Compressor motor defective; .1 Contact STULZ refrigerant system technician or service department. .5 High pressure switch defective; .1 Contact STULZ refrigerant system technician or service department; .6 Where present, compressor remote control switch defective .1 Replace remote control switch. - Page 42 Contact STULZ refrigerant system technician or service department; .3 Where present, solenoid valve defective; .1 Replace solenoid valve coil; .2 Contact STULZ refrigerant system technician or service department; .2 Condenser fan, evaporator fan working, compressor working intermittently; .1 Where present, service high pressure switch;...
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