AIREDALE CR12 Manuale utente
TECHNICAL MANUAL
CONDENSERS
50Hz - 60Hz
R410A
12kW - 165kW
Introduction
CR12 - CR165 50/60Hz CONDENSERS
2Condenser Technical Manual 6666879 V2_02_2020
Customer Services
Warranty, Commissioning & Maintenance
As standard, Airedale guarantees all non consumable parts only for a period of 12 months, variations tailored to suit
product and application are also available; please contact Airedale for full terms and details.
To further protect your investment in Airedale products, Airedale can provide full commissioning services,
comprehensive maintenance packages and service cover 24 hours a day, 365 days a year (UK mainland).
For a free quotation contact Airedale or your local Sales Engineer.
All Airedale products are designed in accordance with EU Directives regarding prevention of build up of water,
associated with the risk of contaminants such as legionella.
For e ective prevention of such risk it is necessary that the equipment is maintained in accordance with Airedale
recommendations.
In addition to commissioning, a 24 hour, 7 days a week on-call service is available throughout the year to UK mainland
sites. This service will enable customers to contact a duty engineer outside normal working hours and receive
assistance over the telephone. The duty engineer can, if necessary, attend site, usually within 24 hours or less.
Full details will be forwarded on acceptance of the maintenance agreement.
Spares
A spares list for 1, 3 and 5 years will be supplied with every unit and is also available from our Spares department on
request.
Training
As well as our comprehensive range of products, Airedale o ers a modular range of Refrigeration and Air Conditioning
Training courses, for further information please contact Airedale.
Customer Services
For information, visit us at our web site: www.airedale.com
Airedale Ltd endeavours to ensure that the information in this document is correct and fairly stated, but none of the
statements are to be relied upon as a statement or representation of fact. Airedale Ltd does not accept liability for any
error or omission, or for any reliance placed on the information contained in this document. The development of Airedale
products and services is continuous and the information in this document may not be up to date. It is important to check
the current position with Airedale Ltd at the address stated. This document is not part of a contract or licence unless
expressly agreed. No part of this document may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose other
than the purchaser’s personal use, without the express written permission of Airedale Ltd.
©2017 Airedale International Air Conditioning Limited. All rights reserved. Printed in the UK.
Warranty cover is not a substitute for maintenance. Warranty cover is conditional to maintenance
being carried out in accordance with the recommendations provided during the warranty period.
Failure to have the maintenance procedures carried out will invalidate the warranty and any
liabilities by Airedale International Air Conditioning Ltd.
CAUTION
Introduction
CR12 - CR165 50/60HzCONDENSERS
3
Condenser Technical Manual 6666879 V2_02_2020
Health and Safety
IMPORTANT
The information contained in this manual is critical to the correct operation and maintenance of the unit and should be
read by all persons responsible for the installation, commissioning and maintenance of this Airedale unit.
Safety
The equipment has been designed and manufactured to meet international safety standards but, like any mechanical/
electrical equipment, care must be taken if you are to obtain the best results.
A full hazard data sheet in accordance with COSHH regulations is available should this be required.
Personal Protective Equipment
Airedale recommends that personal protective equipment is used whilst installing, maintaining and commissioning
equipment.
Manual Handling
Some operations when servicing or maintaining the unit may require additional assistance with regard to manual
handling. This requirement is down to the discretion of the engineer.
Remember, do not perform a lift that exceeds your ability.
When working with any air conditioning units ensure that the electrical isolator is switched o prior
to servicing or repair work and that there is no power to any part of the equipment. Also ensure
that there are no other power feeds to the unit such as re alarm circuits, BMS circuits etc.
Electrical installation commissioning and maintenance work on this equipment should be
undertaken by competent and trained personnel in accordance with local relevant standards and
codes of practice.
CAUTION
Refrigerant Warning
The Airedale unit uses R410A refrigerant which requires careful attention to proper storage and handling procedures.
Use only manifold gauge sets designed for use with R410A refrigerant. Use only refrigerant recovery units and cylinders
designed for high pressure refrigerants.
R410A must only be charged in the liquid state to ensure correct blend makeup.
The refrigerant must be stored in a clean, dry area away from sunlight. The refrigerant must never be stored above
50°C.
Maximum and Minimum Operation Temperature (Ts) and Pressure (Ps)
Operating Temperature (Ts), Ts = Min -40°C to Max 120°C *
Maximum Operating Pressure (Ps) Ps = High Side 40.7 Barg
*Based upon the maximum machine running temperatures.
Global Warming Potential
The R410a refrigerant has a GWP of 2088 (based on EN378-1:2016, 100 year life)
Pressure System Safety Regulations 2000
Refrigeration assemblies/systems may constitute a Pressure System as de ned in the Pressure System Safety
Regulations 2000.
Environmental Considerations
Freeze Protection
Airedale recommends the following actions to help protect the unit during low temperature operation. This also includes
the units subject to low ambient temperatures.
Units with supply water temperatures below +5°C
Glycol is recommended when a supply water temperature of +5°C or below is required or when static water can be
exposed to freezing temperatures.
Units subject to ambient temperatures lower than 0°C, a minimum of 1 of the following is required:
1. Glycol of an appropriate concentration (1) is used within the system to ensure adequate protection.
Please ensure that the concentration is capable of protection at least 3K lower than the minimum operating
ambient.
2. Ensure water/glycol solution is constantly circulated through all waterside pipework and coils to prevent static
water from freezing.
3. Ensure that pumps are started and running even during shut down periods, when the ambient is within 3K of
the solution freeze point (1) (i.e. if the solution freezes at 0°C, the pump must be operating at 3°C ambient).(2)
4. Additional trace heating is provided for interconnecting pipework.
(1) Refer to your glycol supplier for details.
(2) An actuated suction ball valve shall be tted to protect the compressor from liquid migration.
Free Cooling Chillers
A minimum of 20% glycol concentration must be applied to all free cooling chillers. Concentration should be increased
so that its capable of protection at least 3K lower than the minimum operating ambient.
Flow Control
Care to be taken when selecting a chiller within 5% of the evaporator minimum ow rate. The end user must ensure that
ow variation does not fall below this minimum as the chiller will shut down.
Environmental Policy
It is our policy to:
●Take a proactive approach to resolve environmental issues and ensure compliance with regulatory requirements.
●Train personnel in sound environmental practices.
●Pursue opportunities to conserve resources, prevent pollution and eliminate waste.
●Manufacture products in a responsible manner with minimum impact on the environment.
●Reduce our use of chemicals and minimise their release to the environment.
●Measure, control and verify environmental performance through internal and external audits.
●Continually improve our environmental performance.
CE Directive
Airedale certify that the equipment detailed in this manual conforms with the following EC Directives:
Electromagnetic Compatibility Directive (EMC) 2014/30/EU
Machinery Directive (MD) 89/392/EEC version 2006/42/EC
Pressure Equipment Directive (PED) 2014/68/EU
Ecodesign 2009/125/EC
To comply with these directives appropriate national & harmonised standards have been applied. These are listed on the
Declaration of Conformity, supplied with each product.
Contents
General Description 5
Nomenclature 5
Introduction 5
Fan & Motor Assembly 5
Refrigeration 6
Electrical 6
Head Pressure Control (Variable) 6
Electronically Commutated (EC) Fan Motor 6
Installation Data 7
Dimensions 7
Unit Lifting - Condenser 12
Re-Orientation To Vertical Discharge 13
Positioning 16
Mounting 16
Siting Recommendations 16
Pipework Connections 16
Pipework Installation - Good Practices 17
Pipe Lengths 17
Electrical Data 19
Technical Data 20
Performance Data 20
Mechanical Data 22
Electrical Data 25
Noise Data - Horizontal 29
Noise Data - Vertical 30
Commissioning Procedure 31
Start-Up 31
Operating Limits 32
Control Device Adjustment 32
Commissioning Data 34
Refrigerant Charging 34
Maintenance 36
3 MONTHS 36
12 MONTHS 36
Introduction
CR12 - CR165 50/60Hz CONDENSERS
4Condenser Technical Manual 6666879 V2_02_2020
General Description
Nomenclature
Introduction
This range of Air Cooled Condensers is available in 16 model sizes with total heat rejection 12 -165kW. Custom
designed for a small footprint, low sound level, slimline and aesthetically pleasing appearance. Available in either
horizontal or vertical air discharge orientation, please specify at order. All units are despatched following extensive leak
and pressure testing and carry a holding charge of inert gas. The range has been designed and optimised for operation
with ozone benign refrigerant R410A.
50Hz
This range covers condensers from CR12 - CR165
60Hz
This range covers condensers from CR12 - CR105
Construction
Unit cabinets are manufactured from galvanised sheet steel coated with epoxy baked powder paint to provide a durable
nish. Standard unit colour shall be Light Grey (RAL 7035). Dual position xing legs are supplied attached to the unit via
bolts and shake proof washers.
Horizontal Air Discharge
As standard, unit legs are attached and delivered in the horizontal air discharge mode as are the isolator and fan speed
controller. The legs attached to the top of the unit are for lifting and stacking and may be removed and stored safely if
not required.
C R 12 H
C
RCondenser - R410A
12-165 Model Size (Expressed as total heat rejection in kW)
H
V
Horizontal Air Discharge
Vertical Air Discharge
Vertical Air Discharge
As standard, unit legs are attached and delivered in the horizontal air discharge mode and can be repositioned on site to
oer vertical air discharge mode.
Condenser
Large surface area coil is ideally positioned to optimise airow and heat transfer, manufactured from refrigeration quality
copper tube with mechanically bonded aluminium ns. The copper tube is internally ried for improved heat transfer.
Factory pressure tested to 45Bar. Sweat copper pipe for brazed connection as standard.
Fan & Motor Assembly
Axial ow fan assembly with low noise sickle type blades and bellmouth.
Alternating Current (AC) Fan Motor
The external rotor AC motor allows the use of a low power output, single phase and speed controllable motor to power
the fan. The motor has in-built thermal overload protection and the assembly is supplied complete with a nger guard for
protection. Available in either horizontal or vertical air discharge orientation, please specify at order.
Only 2 units may be stacked together.
IMPORTANT
To ensure the unit isolator and fan speed controller are in the correct orientation for vertical air
discharge please specify at order.
IMPORTANT
Introduction
CR12 - CR165 50/60HzCONDENSERS
5
Condenser Technical Manual 6666879 V2_02_2020
Refrigeration
Each unit features as standard:
• Filter drier (supplied loose)
• Holding charge of inert gas
Electrical
All electrical components are rated for all year round outdoor use. All wiring is colour coded and numbered for
identication. All units are wired in accordance with current local and European standards.
Head Pressure Control (Variable)
Matched with Airedale Indoor Unit:
Variable head pressure control is provided by the indoor unit when standard fans or optional EC fans are selected.
Unmatched Units:
Head pressure control is maintained by a modulating fan speed controller tted to the outdoor unit. The controller is
rated to IP54 for outdoor use and will operate accurately in ambient temperatures down to a minimum of -20°C.
Mains Electric Isolator
A weatherproof mains isolator is tted to ensure complete unit isolation of the electrical panel during adjustment and
maintenance.
Electronically Commutated (EC) Fan Motor
Sickle bladed fan assemblies with integral long bellmouth and ngerproof grille. Incorporates external EC rotor motor
technology to provide highly accurate discreet speed control. The fans oer maximum airow performance while
keeping sound levels to a minimum.
Each fan incorporates electronically commutated DC motor control using semi-conductor modules responding to a
signal from the Airedale indoor unit. EC motors are DC motors with integrated AC to DC conversion; this gives the
exibility of connecting to AC mains with the eciency and simple speed control of a DC motor. The EC fan oers
signicant power reduction in comparison with equivalent AC fan at both full and modulated fan speeds. The inbuilt
EC fan control module allows for fan speed modulation from 15-100%, the modulating range of a standard AC fan is
typically 40-100% of full fan speed.
Head pressure control is maintained by a modulating fan speed controller tted to the outdoor unit. The controller is
rated to IP54 for outdoor use and will operate accurately in ambient temperatures down to a minimum of -20°C.
General Description
All fans are supplied pre-programmed to a head pressure setpoint of 26 barg and proportional
band setpoint of 6 barg. For alternative settings, please specify at order.
IMPORTANT
Corrosion Resistant Coated Coils
For aggressive atmospheres a corrosion resistant coating can be applied to the aluminium ns.
Head Pressure Control
(On / O) Head pressure control is maintained via a factory tted on/o pressure switch rated to IP54 for outdoor
use as standard. Good control with ambients down to 0°C, below this temperature variable speed controllers are
recommended. The head pressure is factory set to 26 barg (377 psig).
Shut O Valves
Where unit isolation for easier maintenance is required, shut o valves can be supplied loose for on site tment.
Coil Guards
Protective mesh guards can be tted to each of the outer coils to protect against damage.
CR12 - CR165 50/60Hz CONDENSERS
6Condenser Technical Manual 6666879 V2_02_2020
Standard Condenser 1 Fan
Installation Data
Dimensions
Unit diagrams can be supplied on request.
The legs attached to the top of the horizontal unit are for lifting and stacking and may be removed
and stored safely if not required. Only 2 units may be stacked together.
IMPORTANT
A vertical air discharge unit is recommended for installation in windy locations or wherever a
horizontal airow would be obstructed.
CAUTION
B
A
E
C
D
F
Horizontal
Vertical
A B C D E F
UNIT FAN TYPE mm mm mm mm mm mm
CR12 AC 902 972 1000 635 635 1165
CR16 AC 902 972 1000 635 635 1165
CR22 AC 1095 1167 1000 820 820 1126
CR26 EC 1095 1167 1000 820 820 1217
CR30 AC 1095 1167 1000 820 820 1126
CR35 EC 1095 1167 1000 820 820 1217
CR12 - CR165 50/60HzCONDENSERS
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Condenser Technical Manual 6666879 V2_02_2020
Installation
B
A
E
C
F
D
Unit diagrams can be supplied on request.
The legs attached to the top of the horizontal unit are for lifting and stacking and may be removed
and stored safely if not required. Only 2 units may be stacked together.
IMPORTANT
Installation Data
Dimensions
Standard Condenser 2 Fans
Horizontal
Vertical
A vertical air discharge unit is recommended for installation in windy locations or wherever a
horizontal airow would be obstructed.
CAUTION
A B C D E F
UNIT FAN TYPE mm mm mm mm mm mm
CR50 AC 2177 1167 1000 1916 1916 1126
CR60 EC 2177 1167 1000 1916 1916 1217
CR65 AC 2177 1167 1000 1916 1916 1126
CR75 EC 2177 1167 1000 1916 1916 1217
CR12 - CR165 50/60Hz CONDENSERS
8Condenser Technical Manual 6666879 V2_02_2020
Installation
F
C
EE
B
A
DD
Unit diagrams can be supplied on request.
The legs attached to the top of the horizontal unit are for lifting and stacking and may be removed
and stored safely if not required. Only 2 units may be stacked together.
IMPORTANT
Installation Data
Dimensions
Standard Condenser 3 Fans
Horizontal
Vertical
A vertical air discharge unit is recommended for installation in windy locations or wherever a
horizontal airow would be obstructed.
CAUTION
A B C D E F
UNIT FAN TYPE mm mm mm mm mm mm
CR80 AC 3560 1167 1000 1650 1650 1126
CR95 EC 3560 1167 1000 1650 1650 1217
CR105 AC 3560 1167 1000 1650 1650 1126
CR130 EC 3560 1167 1000 1650 1650 1217
CR12 - CR165 50/60HzCONDENSERS
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Condenser Technical Manual 6666879 V2_02_2020
Installation
Unit diagrams can be supplied on request.
The legs attached to the top of the horizontal unit are for lifting and stacking and may be removed
and stored safely if not required. Only 2 units may be stacked together.
IMPORTANT
Installation Data
Dimensions
Standard Condenser 4 Fans
A
B
C
EE
E
F
DD
D
Horizontal
Vertical
A vertical air discharge unit is recommended for installation in windy locations or wherever a
horizontal airow would be obstructed.
CAUTION
A B C D E F
UNIT FAN TYPE mm mm mm mm mm mm
CR140 AC 4644 1167 1000 1460 1460 1126
CR165 EC 4644 1167 1000 1460 1460 1217
CR12 - CR165 50/60Hz CONDENSERS
10 Condenser Technical Manual 6666879 V2_02_2020
Installation
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