Related Manuals for AIREDALE CUS Series
Summary of Contents for AIREDALE CUS Series
- Page 1 i n s t a l l a t i o n & m a i n t e n a n c e C O N D E N S I N G U N I T S C U S 6 0 / H C U 3 0 D...
- Page 2 365 days a year, plus regular planned maintenance visits. For a free quotation contact our Field Service Department or your Local Sales Engineer. As well as our comprehensive range of products, Airedale offers a modular range of TRAINING Refrigeration and Air Conditioning Training courses, for further information please contact our Training Co-ordinator.
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Page 3: Table Of Contents
CUS 15 - 60 / HCU 20 Condensing Units Description Page 4 General Safety Page 5 Spares Page 5 Serial Plate Page 5 Warranty Main Terms Page 6 Procedures Page 6 Returns Analysis Page 7 Loose Items List Page 7 Component Location / Description Page 8 Site Installation Guide... -
Page 4: Description
CUS 15 - 60 / HCU 20 Condensing Units Description The condensing units comprise a compact housing incorporating all the necessary INTRODUCTION components and associated controls required. The multiple condenser fan and motor assemblies provide an even airflow across the condenser coils and then discharge vertically upwards. -
Page 5: Safety
A recommended spares list is included in the unit documentation pouch located inside SPARES the unit. For ease of identification when ordering spares or contacting Airedale about your Condensing unit, please quote the unit type, unit serial number and the date of manufacture. -
Page 6: Warranty
Airedale during the warranty period. Airedale will respect warranty cover on all component parts for a period of 24 months commencing from despatch of equipment from the Airedale factory. Extended warranty to afford 24 months cover from commissioning of plant can be supplied upon written request. -
Page 7: Returns Analysis
CUS 15 - 60 / HCU 20 Condensing Units Warranty When warranty is allowed, a credit against the "G" number invoice will be raised. PROCEDURE Should warranty be refused the "G" number invoice becomes payable on normal terms. Warranty may be refused for the following reasons: Misapplication of product or components. -
Page 8: Component Location / Description
CUS 15 - 60 / HCU 20 Condensing Units Component Location COMPRESSORS HCU 20 - 30D The compressors are located in the centre of the unit and are accessed by key operated lockable covers. CUS 15 - 30D The compressors are housed in the enclosed compartment which is at one end of the condensing unit and accessible by a series of key operated lockable covers. -
Page 9: Site Installation Guide
CUS 15 - 60 / HCU 20 Condensing Units Site Installation Guide Whenever a condensing unit is lifted, lifting should be from the base. Where possible, LIFTING all packing and protection should be left in position. If any type of slinging is used, due care should be taken to ensure that the slings do not crush the casework or coil. -
Page 10: Mechanical Information
CUS 15 - 60 / HCU 20 Condensing Units Mechanical Information CUS 15 - 60D Nominal Capacity 41.8 50.2 71.1 80.7 104.0 131.4 161.4 Nominal Airflow m³/sec 4.00 4.80 6.80 6.80 9.60 13.60 13.00 Max.Fan Speed Refrigerant R407C R407C R407C R407C R407C R407C... -
Page 11: Dimensions
CUS 15 - 60 / HCU 20 Condensing Units Dimensions: CUS 15D - 30D 6 Fixing Holes Ø 14mm + A1 + B1 + C1 + F1 + D1 + E1 1438 2300 1100 1050 CUS 15D 1438 2900 1100 1250 1250 1050... - Page 12 CUS 15 - 60 / HCU 20 Condensing Units Dimensions: CUS 40D - 60D 6 Fixing Holes Ø 14mm C1 + + A1 ISOLATOR ACCESS TO COMPRESSOR D1 + + F1 AIRFLOW 2 Holes Ø 75mm SUCTION 2 Knockouts Ø 32mm LIQUID 55mm²...
- Page 13 CUS 15 - 60 / HCU 20 Condensing Units Dimensions: HCU 20 - 30D CIRCUIT 2 Liquid Line Suction Line CIRCUIT 1 4 Fixing Holes Ø 14mm Suction Line Liquid Line 1993 2280 2370 1993 2280 2370 1993 2280 2370 Point Loadings (kg) Centre of Gravity (mm) 1088...
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Page 14: Refrigeration System
CUS 15 - 60 / HCU 20 Condensing Units Refrigeration System REFRIGERATION PIPEWORK SCHEMATICS CONDENSING UNIT SHUT OFF VALVE COIL LIQUID STUB IN-LINE PRESSURE PIPE SWITCHES SOLDER CONNECTIONS COMPRESSOR SUCTION Notes: Compressor connections are diagrammatic only - not actual. For clarity only one circuit is shown although all units are twin circuit. Chiller &... -
Page 15: System Holding Charge
IMPORTANT:- If an alternative refrigerant is used, then this must be with the approval of Airedale International Air Conditioning Ltd. Use of an alternative refrigerant without the approval of AIAC Ltd could invalidate the warranty. -
Page 16: Electrical Information - Control Panel Components
CUS 15 - 60 / HCU 20 Condensing Units Electrical Information CONTROL PANEL The condensing units are designed to operate in conjunction with other Airedale units, Standard Wiring and are also suitable for matching to other air handling units. A wiring diagram is Diagram supplied with each unit and should be referred to when carrying out the installation. -
Page 17: Electrical Data Sheet
CUS 15 - 60 / HCU 20 Condensing Units Electrical Information ELECTRICAL DATA Unit Data Nominal Run Amps (1) 30.4 35.6 47.2 53.0 62.8 82.9 97.5 Maximum Start Amps 115.7 140.2 202.3 205.0 149.5 164.8 220.5 Control Circuit 24VAC Mains Supply 400/3/50 Permanent Supply 230/1/50... -
Page 18: Terminal Blocks - External Connections
CUS 15 - 60 / HCU 20 Condensing Units Field Connections Mains Incoming 400/3/50 L4-N1 Permanent Supply 230/1/50 CUS 15-30 & HCU 20-30 UNITS 502-530 Stage Two Cool - Customer's Control 502-535 Stage One Cool - Customer's Control 531-500 Liquid Line Solenoid - Circuit 2 Customer Supply 532-500 Liquid Line Solenoid - Circuit 1... -
Page 19: Commissioning Sheet - Example
Condenser Fan Amps Amps Amps Other comments IMPORTANT: THIS IS AN IMPORTANT WARRANTY DOCUMENT AND WARRANTY COULD BE INVALIDATED SHOULD AIREDALE NOT HOLD A COPY ON FILE. QTYENG 10 - 08/98 Chillers & Condensing Units Installation & Maintenance:Part No: 6259592 IM 07/14... -
Page 20: Pre-Start Checks
C to 6 ° ° Once this has been done, all the readings taken should be recorded on the commissioning sheets and a copy returned to Airedale for warranty purposes. HEAD PRESSURE CUS 15 - 30D AND HCU 20 - 30D CONTROLLER... - Page 21 C. This is selected by turning the knob on the fan ° speed controller fully anti-clockwise. Cut off mode is standard operation for Airedale condensing units and factory set. The minimum voltage output to the fan can be varied between 45-95% of supply...
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Page 22: Troubleshooting Tables
CUS 15 - 60 / HCU 20 Condensing Units Troubleshooting GENERAL FAULT POSSIBLE CAUSE REMEDY / ACTION Compressor not operating. No power to compressor Check isolator, fuses, MCBs, contactor and control circuit wiring Low pressure switch operated (large or Recover refrigerant, repair, evacuate and complete loss of refrigerant charge). - Page 23 Check fan speed controller setting - if faulty winter (full airflow). - replace. Suction Pressure too low. Low evaporator airflow (not Airedale Unit). Check fan motors, belts and drives. Flash gas (bubbles in sight glass) at Investigate for refrigerant leaks, repair and expansion valve.
- Page 24 CUS 15 - 60 / HCU 20 Condensing Units Troubleshooting REFRIGERATION FAULT POSSIBLE CAUSE REMEDY / ACTION Condenser fan not operating Motor / fan assembly jammed Isolate unit and check free rotation of motor - power on. / fan assembly. If faulty - replace. Fault at motor terminal box supply Isolate and check electrical connections terminals...
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Page 25: Periodic Maintenance Schedule
CUS 15 - 60 / HCU 20 Condensing Units Maintenance Requirements WARNING : Ensure that ALL power to the unit is switched OFF before carrying SAFETY out any servicing or maintenance task. ACCESS CUS 15 - 30D Access to the compressors is via removable covers at the control panel end of the unit. - Page 26 CUS 15 - 60 / HCU 20 Condensing Units Maintenance Requirements Wash down cabinet using a mild detergent. Treat any paint damage or rust as CABINET necessary. Check all electrical connections for signs of overheating or arcing. ELECTRICAL Check all cables for signs of chafing or physical damage. As three-monthly plus the following:- SERVICE CHECKS - Check all electrical connections for tightness.
- Page 27 CUS 15 - 60 / HCU 20 Condensing Units Notes: Chillers & Condensing Units Installation & Maintenance:Part No: 6259592 IM 07/14...
- Page 28 W here to Find Us Head Office: Airedale International Air Conditioning Ltd Leeds Road Rawdon Leeds LS19 6JY United Kingdom Tel: +44 (0) 113 239 1000 Fax: +44 (0) 113 250 7219 e-mail: enquiries@airedale.com website: www.airedale.com...
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