AIREDALE DeltaChill User manual

Technical Manual
DeltaChill Air Cooled
DeltaChill Free Cooling Chiller
500kW - 1000kW

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
2
Chiller Technical Manual 7267818 V1.13.0_01_2018
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 effective prevention of such risk it is necessary that the equipment is maintained in accordance with Airedale
recommendations.
ChillerGuard
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 offers a modular range of Refrigeration and Air Conditioning
Training courses, for further information please contact Airedale.
Customer Services
For further assistance, please e-mail: [email protected] or telephone:
UK Sales Enquiries + 44 (0) 113 239 1000 [email protected]
International Enquiries + 44 (0) 113 239 1000 [email protected]
Spares Hot Line + 44 (0) 113 238 7878 [email protected]
Airedale Service + 44 (0) 113 239 1000 [email protected]
Technical Support + 44 (0) 113 239 1000 [email protected]
Training Enquiries + 44 (0) 113 239 1000 [email protected]
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.
©2018 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
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.
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.
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.
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.
Pressure Equipment Directive (2014/68/EU)
Minimum and Maximum Operation Temperature (Ts) and Pressure (Ps)
Refrigeration
AllowableTemperature Range (Ts), Ts = Min -20°C* to Max 120°C**
Maximum Allowable Pressure (Ps) Ps = High Side 40.7 Barg Low side Barg
*Based on the refrigerant temperature in the unit off state in the lowest permitted ambient temperature.
**Based on the maximum allowable super heated refrigerant temperature.
Waterside
AllowableTemperature Range (Ts), Ts = Min -20°C* to Max 120°C**
Maximum Allowable Pressure (Ps) Ps = 10 Barg
*Based on the refrigerant temperature in the unit off state in the lowest permitted ambient temperature.
Global Warming Potential
The R410A refrigerant has a GWP of 2088 (based on EN378-1:2016, 100 year life)
Ecodesign Directive 2009/125/EC
The product range within this document is designed in accordance to the European Ecodesign Directive 2009/125/EC.
The appendix at the rear section of the manual gives the product compliancy metrics. Products sold outside of the EU
are exempt from this directive.
When working with any air conditioning units ensure that the electrical isolator is switched off 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 fi re alarm circuits, BMS circuits
etc.
CAUTION

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
3
Chiller Technical Manual 7267818 V1.13.0_01_2018
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 effective prevention of such risk it is necessary that the equipment is maintained in accordance with Airedale
recommendations.
ChillerGuard
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 offers a modular range of Refrigeration and Air Conditioning
Training courses, for further information please contact Airedale.
Customer Services
For further assistance, please e-mail: [email protected] or telephone:
UK Sales Enquiries + 44 (0) 113 239 1000 [email protected]
International Enquiries + 44 (0) 113 239 1000 [email protected]
Spares Hot Line + 44 (0) 113 238 7878 [email protected]
Airedale Service + 44 (0) 113 239 1000 [email protected]
Technical Support + 44 (0) 113 239 1000 [email protected]
Training Enquiries + 44 (0) 113 239 1000 [email protected]
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.
©2018 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
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.
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.
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.
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.
Pressure Equipment Directive (2014/68/EU)
Minimum and Maximum Operation Temperature (Ts) and Pressure (Ps)
Refrigeration
AllowableTemperature Range (Ts), Ts = Min -20°C* to Max 120°C**
Maximum Allowable Pressure (Ps) Ps = High Side 40.7 Barg Low side Barg
*Based on the refrigerant temperature in the unit off state in the lowest permitted ambient temperature.
**Based on the maximum allowable super heated refrigerant temperature.
Waterside
AllowableTemperature Range (Ts), Ts = Min -20°C* to Max 120°C**
Maximum Allowable Pressure (Ps) Ps = 10 Barg
*Based on the refrigerant temperature in the unit off state in the lowest permitted ambient temperature.
Global Warming Potential
The R410A refrigerant has a GWP of 2088 (based on EN378-1:2016, 100 year life)
Ecodesign Directive 2009/125/EC
The product range within this document is designed in accordance to the European Ecodesign Directive 2009/125/EC.
The appendix at the rear section of the manual gives the product compliancy metrics. Products sold outside of the EU
are exempt from this directive.
When working with any air conditioning units ensure that the electrical isolator is switched off 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 fi re alarm circuits, BMS circuits
etc.
CAUTION

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
4
Chiller Technical Manual 7267818 V1.13.0_01_2018
Environmental Considerations
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
●Glycol of an appropriate concentration (1) must be used within the system to ensure adequate freeze protection.
Please ensure that the concentration is capable of protection to at least 3K lower than ambient.
●Water / glycol solution should be constantly circulated through all waterside pipework and coils to avoid static
water from freezing.
●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).
●Additional trace heating is provided for interconnecting pipework.
(1) Refer to your glycol supplier for details.
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.

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
5
Chiller Technical Manual 7267818 V1.13.0_01_2018
Speciers Guide 9
Nomenclature 9
Introduction 9
Range Layout 10
Unit Overview 12
Construction 14
Refrigeration 14
Compressor 14
Refrigeration Pipework Components 14
Electronic Expansion Valves (EEV) 15
Condenser Coils 16
Corrosion Resistant Coated Coils 16
Evaporator 16
Electrical 17
Phase Rotation Protection 18
Single Point Isolation 18
Electronic Soft Start 18
Control Panel Light 19
Mains Cable Entry 19
R410A Leak Detection 19
Condenser Fans 20
Condenser Fan and Motor - AC 20
Energy saving Electronically Commutated (EC) Fan Motor 20
High Airow EC Fans 20
Waterside 21
Free Cooling Coil 21
Water Flow Switch 21
Water Connections 21
Waterside Options 23
Controls 24
General Description 24
Monitoring 25
Alarm Handling 26
Compressor Fast Start 26
Displays hours run of each pump. 27
Chiller Sequence Manager 27
Energy Manager 27
Mechanical 28
Lifting Lugs 28
Extended Discharge Air Plenum - Condenser Fan 28
Anti Vibration Mounts (Spring Type) 28
Anti Vibration Mounts (Pad Type) 28
Contents
Environmental Considerations
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
●Glycol of an appropriate concentration (1) must be used within the system to ensure adequate freeze protection.
Please ensure that the concentration is capable of protection to at least 3K lower than ambient.
●Water / glycol solution should be constantly circulated through all waterside pipework and coils to avoid static
water from freezing.
●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).
●Additional trace heating is provided for interconnecting pipework.
(1) Refer to your glycol supplier for details.
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.

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
6
Chiller Technical Manual 7267818 V1.13.0_01_2018
Installation Data 29
Weights, Point Loadings & Centre of Gravity (C of G) DCF 29
Weights, Point Loadings & Centre of Gravity (C of G) DCC 33
Dimensions 36
Mounting Hole Centres 37
Lifting Dimensions 39
Anti Vibration Mounting (Optional) 41
Water System 43
Grooved & Clamped Type Connection 43
Standard Recommended Installation 43
Water Systems and Recommended Flow Schemes 44
Flow Schemes 44
Electrical 47
Interconnecting Wiring 48
Design Data 50
Measurement of Sound Data 50
Part Load Efciencies 51
Glycol 52
Minimum System Water Volume Calculations 54
Technical Data DCF 55
Cooling Performance Free Cool 55
DCF Performance Data EC Fans 58
DCF Mechanical Data 72
DCF Mechanical Data - Regular Quiet 73
DCF Mechanical Data Extra Quiet 90
DCF Electrical Data 105
DCF Electrical Data - Regular Quiet 106
DCF Electrical Data Extra Quiet 123
DCF Noise Data EC Fans Regular Quiet 138
Technical Data DCC 142
DCC Performance Data EC Fans 142
DCC Mechanical Data 156
DCC Mechanical Data - Regular Quiet 157
DCC Mechanical Data - Extra Quiet 172
DCC Electrical Data 185
DCC Electrical Data - Regular Quiet 186
DCC Electrical Data - Extra Quiet 201
DCC Sound Data EC Fans Regular Quiet 214
DCC Sound Data EC Fans Extra Quiet 216
Hydraulic Data 218
DCF Evaporator Pressure Drop 218
DCC Evaporator Pressure Drop 219
Evaporator Pressure Drop Curves (Water) 220
Evaporator Pressure Drop Curves (20% Ethylene Glycol) 222
DCF Unit Pressure Drop 224
DCC Unit Pressure Drop 228
Strainer Pressure Drop 231
Pump Performance Curves 232
Contents

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
7
Chiller Technical Manual 7267818 V1.13.0_01_2018
Appendix - Ecodesign 237
Technical Data DCC 238
DCC047DR-08EPV0, DCC049DR-08EYY0, DCC052DR-09DYV0 238
DCC056DR-10DVV0, DCC058DR-10DVW0, DCC061DR-10DWW0 239
DCC065TR-10GPPY, DCC069TR-11GPYY, DCC074TR-12GYYY 240
DCC077TR-13GYYV, DCC080TR-14GYVV, DCC083TR-15GVVV 241
DCC086TR-15GVVW, DCC088TR-15GVWW, DCC091TR-15GWWW 242
DCC049DR-10EPV0, DCC051DR-10EYY0, DCC054DR-11DYV0 243
DCC058DR-12DVV0, DCC060DR-12DVW0, DCC063DR-12DWW0 244
DCC031DR-08BLM0, DCC032DR-06BMM0, DCC033DR-08BMM0 245
DCC080TR-16GYYV, DCC082TR-17GYVV, DCC085TR-18GVVV 246
DCC088TR-18GVVW, DCC091TR-18GVWW, DCC094TR-18GWWW 247
DCC050DR-12EPV0, DCC052DR-12EYY0, DCC056DR-13DYV0 248
DCC059DR-14DVV0, DCC061DR-14DVW0, DCC065DR-14DWW0 249
DCC070TR-16GPPY,DCC074TR-17GPYY, DCC079TR-18GYYY 250
DCC082TR-19GYYV, DCC084TR-20GYVV, DCC087TR-21GVVV 251
DCC015DX-04ADF0, DCC016DX-04AJJ0, DCC018DX-04BJK0 252
DCC048DX-10EPV0, DCC049DX-10EYY0, DCC053DX-11DYV0 253
DCC056DX-12DVV0, DCC058DX-12DVW0, DCC061DX-12DWW0 254
DCC066TX-13GPPY, DCC070TX-14GPYY, DCC075TX-15GYYY 255
DCC077TX-16GYYV, DCC080TX-17GYVV, DCC083TX-18GVVV 256
DCC086TX-18GVVW, DCC088TX-18GVWW, DCC091TX-18GWWW 257
DCC049DX-12EPV0, DCC051DX-12EYY0, DCC054DX-13DYV0 258
DCC057DX-14DVV0, DCC060DX-14DVW0, DCC063DX-14DWW0 259
DCC068TX-16GPPY, DCC072TX-17GPYY, DCC077TX-18GYYY 260
DCC080TX-19GYYV, DCC082TX-20GYVV, DCC085TX-21GVVV 261
DCC088TX-21GVVW, DCC091TX-21GVWW, DCC094TX-21GWWW 262
DCC050DX-14EPV0, DCC052DX-14EYY0, DCC055DX-15DYV0 263
DCC059DX-16DVV0, DCC061DX-16DVW0, DCC065DX-16DWW0 264
DCC070TX-19GPPY, DCC074TX-20GPYY 265
DCC079TX-21GYYY, DCC081TX-22GYYV 266
Contents

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
8
Chiller Technical Manual 7267818 V1.13.0_01_2018
Technical Data DCF 267
Ecodesign 267
DCF046DR-07DXY0, DCF048DR-07DPY0, DCF051DR-08DPV0 267
DCF053DR-08DYY0, DCF055DR-09DYV0, DCF058DR-10DVV0 268
DCF062DR-10FVW0, DCF065DR-10FWW0, DCF069TR-10GPPY 269
DCF074TR-11GPYY, DCF079TR-12GYYY, DCF082TR-13HYYV 270
DCF085TR-14HYVV, DCF090TR-15HVVV, DCF092TR-15HVVW 271
DCF094TR-15HVWW, DCF096TR-15HWWW, DCF049DR-09DXY0 272
DCF051DR-09DPY0, DCF053DR-10DPV0, DCF055DR-10DYY0 273
DCF058DR-11DYV0, DCF060DR-12DVV0, DCF065DR-12FVW0 274
DCF068DR-12FWW0, DCF073TR-13GPPY, DCF078TR-14GPYY 275
DCF082TR-15GYYY, DCF085TR-16HYYV, DCF088TR-17HYVV 276
DCF093TR-18HVVV, DCF095TR-18HVVW, DCF098TR-18HVWW 277
DCF100TR-18HWWW, DCF051DR-11DXY0 278
DCF055DR-12DPV0, DCF057DR-12DYY0, DCF059DR-13DYV0 279
DCF062DR-14DVV0, DCF066DR-14FVW0, DCF070DR-14FWW0 280
DCF075TR-16GPPY, DCF080TR-17GPYY, DCF085TR-18GYYY 281
DCF088TR-19HYYV, DCF090TR-20HYVV, DCF095TR-21HVVV 282
DCF098TR-21HVVW, DCF101TR-21HVWW, DCF103TR-21HWWW 283
DCF047DX-09DXY0, DCF049DX-09DPY0, DCF051DX-10DPV0 284
DCF053DX-10DYY0, DCF055DX-11DYV0, DCF058DX-12DVV0 285
DCF062DX-12FVW0, DCF065DX-12FWW0, DCF069TX-13GPPY 286
DCF075TX-14GPYY, DCF079TX-15GYYY, DCF082TX-16HYYV 287
DCF085TX-17HYVV, DCF089TX-18HVVV, DCF092TX-18HVVW 288
DCF098TR-21HVVW, DCF101TR-21HVWW, DCF103TR-21HWWW 289
DCF051DX-11DPY0, DCF053DX-12DPV0, DCF055DX-12DYY0 290
DCF057DX-13DYV0, DCF060DX-14DVV0, DCF064DX-14FVW0 291
DCF047DX-09DXY0, DCF049DX-09DPY0, DCF051DX-10DPV0 292
DCF082TX-18GYYY, DCF085TX-19HYYV, DCF088TX-20HYVV 293
DCF092TX-21HVVV, DCF095TX-21HVVW, DCF097TX-21HVWW 294
DCF099TX-21HWWW, DCF050DX-13DXY0, DCF053DX-13DPY0 295
DCF055DX-14DPV0, DCF057DX-14DYY0, DCF059DX-15DYV0 296
DCF061DX-16DVV0, DCF066DX-16FVW0, DCF069DX-16FWW0 297
DCF074TX-19GPPY, DCF079TX-20GPYY 298
DCF084TX-21GYYY, DCF087TX-22HYYV 299

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
9
Chiller Technical Manual 7267818 V1.13.0_01_2018
Nomenclature
Introduction
The DeltaChill Free Cool chiller has been designed to provide the cooling load required whilst optimising energy
efciency at all times and as such will take advantage of free cooling whenever available. If the free cooling available
cannot satisfy the required full cooling load, direct expansion cooling is used to supplement the output.
Speciers Guide
Free Cooling Operation
In high ambients where free cooling is not available the fan
speed modulates in the conventional manner to maintain a
constant head pressure. Free cooling is initiated wherever the
outdoor ambient is 2°C less than the return water temperature.
The condensing temperature is constantly monitored and
intelligently kept within the compressor envelope to allow the
fans to run as fast as possible and therefore achieve the most
free-cooling without having a negative impact on compressor
integrity.
In ambients where the free cooling coil is capable of
satisfying the full cooling demand, the condenser fans are
modulated to provide the desired duty. The condenser fans
Free - cooling vs Mechanical cooling
System operated on 100% Free
Cooling (77% of Year)
System operated on
mechanical cooling only (23%
of Year)
Cooling
Load
Mechanical (Compressor) cooling
Free - Cooling
-7°C 0.5°C 12.5°C
Ambient Temp
DC F xxx D R- 07 x X Y 0
DC DeltaChill
FF = FreeCool Chiller, C = Air Cooled Chiller
xxx Nominal Capacity (kW/10)
Number of Circuits
DDual Circuit
TTriple Circuit
Noise Variant
R- Regular Quiet
X- Extra Quiet
07 - 22 Number of Fans
C - H Evaporator Type
A - Y
A - Y
A - Y
Example
Document Navigation
The units have a unique number * (apart from the Nomenclature) for you to search each table of data.
For example Number “1” DCF046DR-07DXY0 is referenced in all tables, Performance, Mechanical, Electrical, Noise etc.
*This number is only used within this document. Please contact Airedale with the full nomenclature for product information.
are capable of being modulated between 25-100% of airow
to maintain the supply water temperature.
During periods where the condenser fan speed has been
reduced to a minimum, the supply water temperature will then be controlled by the 3 way valve.

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
10
Chiller Technical Manual 7267818 V1.13.0_01_2018
Range Layout
7 Fan Units DCF 460 - 480kW
8 Fan Units
DCC 530 - 690kW
DCF 490 - 740kW
DCC 470 - 490kW
DCF 470 - 490kW
DCC 520kW
DCF 510kW
DCC 480 - 650kW
DCF 510 - 650kW
DCC 490 - 740kW
DCF 530 - 790kW
DCC 540 - 680kW
DCF 500 - 820kW
DCC 500 - 800kW
DCF 550 - 850kW
9 Fan Units
10 Fan Units
11 Fan Units
12 Fan Units
13 Fan Units
14 Fan Units
(1) DCC Duties based upon 12°C / 7°C
water temperatures 35°C Ambient
(2) Free cool Duties at 15°C / 10°C 3°C Ambient
(3) Condenser fan layout may vary with unit conguration

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
11
Chiller Technical Manual 7267818 V1.13.0_01_2018
DCC 550 - 910kW
DCF 590 - 960kW
DCC 590 - 770kW
DCF 660 - 850kW
DCC 720 - 820kW
DCF 780 - 850kW
DCC 770 - 940kW
DCF 820 - 1000kW
DCC 700 - 820kW
DCF 740 - 880kW
DCC 740 - 840kW
DCF 790 - 900kW
DCC 790 - 960kW
DCF 840 - 1030kW
DCC 810kW
DCF 870kW
15 Fan Units
16 Fan Units
17 Fan Units
18 Fan Units
19 Fan Units
20 Fan Units
21 Fan Units
22 Fan Units

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
12
Chiller Technical Manual 7267818 V1.13.0_01_2018
Standard Control Panel Features
• Electrical Switch Gear
• Microprocessor Control
• Single Point Isolation (Deselectable)
• Phase Rotation Protection
• Control Panel Ventilation (High Ambient)
• Control Panel Heater (Low Ambient)
• Battery backup for Controls
• Single Phase Permanent Supply Isolator
Standard Refrigeration Components
• Scroll Compressors
• Shell and Tube Evaporator
• Electronic Expansion valves
• Shut Off Valves
Optional Components
• Leak Detection Standard or Premium
• Refrigerant Pumpdown
Standard Condenser Fans
• EC (Electrically Commutated) Condenser Fans
Standard Waterside Features
• Differential Pressure Sensor
Optional Waterside Features
• Single Pump
• Run / Standby Pump
(pumps avaliable in Standard and high head)
•Inverter Driven Pump Motors (Standard and High Head)
• Water Strainer
• Flush and Bypass
• Non Return Valves
• Water Flow Switch
• Pump Interlock
Standard Coil Features
• Micro-Channel Condenser Coils
• Free Cooling Coil (DCF Only)
Optional Control Panel Features
• Automatic Power Factor Correction
• Power Meter
• Electronic Soft Start
• Control Panel Rain Cover
• Internal Light
• Maintenance Socket
Optional Condenser Fan Components
• AC Condenser Fans
• EC + (High Airflow EC) Condenser Fans
• Extended Discharge Plenum
Optional Components
• Corrosion Resistant Coated FC Coils
Unit Overview

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
13
Chiller Technical Manual 7267818 V1.13.0_01_2018
Standard Control Panel Features
• Electrical Switch Gear
• Microprocessor Control
• Single Point Isolation (Deselectable)
• Phase Rotation Protection
• Control Panel Ventilation (High Ambient)
• Control Panel Heater (Low Ambient)
• Battery backup for Controls
• Single Phase Permanent Supply Isolator
Standard Refrigeration Components
• Scroll Compressors
• Shell and Tube Evaporator
• Electronic Expansion valves
• Shut Off Valves
Optional Components
• Leak Detection Standard or Premium
• Refrigerant Pumpdown
Standard Condenser Fans
• EC (Electrically Commutated) Condenser Fans
Standard Waterside Features
• Differential Pressure Sensor
Optional Waterside Features
• Single Pump
• Run / Standby Pump
(pumps avaliable in Standard and high head)
•
Inverter Driven Pump Motors (Standard and High Head)
• Water Strainer
• Flush and Bypass
• Non Return Valves
• Water Flow Switch
• Pump Interlock
Standard Coil Features
• Micro-Channel Condenser Coils
• Free Cooling Coil (DCF Only)
Optional Control Panel Features
• Automatic Power Factor Correction
• Power Meter
• Electronic Soft Start
• Control Panel Rain Cover
• Internal Light
• Maintenance Socket
Optional Condenser Fan Components
• AC Condenser Fans
• EC + (High Airflow EC) Condenser Fans
• Extended Discharge Plenum
Optional Components
• Corrosion Resistant Coated FC Coils

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
14
Chiller Technical Manual 7267818 V1.13.0_01_2018
Construction
The base is fabricated from galvanised steel to ensure a rigid, durable, weatherproof construction.
The superstructure is manufactured from galvanised sheet steel coated with epoxy baked powder paint to provide a
durable and weatherproof nish. Standard unit colour is Light Grey (RAL 7035).
Compressors and evaporator are mounted on a rigid galvanised heavy-duty sub frame.
Fully weatherproofed electrical panels are situated at one end of the unit.
Refrigeration
Compressor
Scroll compressors comprising:
●Internal motor protection
●Internal pressure relief
●Non return valve
●External discharge temperature protection
●Oil sight glass
Each Tandem / Trio set has an oil equalisation line.
The compressors are mounted to the rigid galvanised heavy duty sub-frame with the use of vibration reducing isolation.
Compressor Staging
The sequence of the compressor staging has been engineered to optimise the units ESEER performance.
Refrigeration Pipework Components
Sight Glass
A liquid line sight glass is tted to give an indication of the state of the refrigerant within the system. If the sight glass
becomes yellow it’s an indication that the lter drier requires changing.
Liquid Line Ball Valves
Liquid line ball valves are tted to ensure ease of maintenance during shut down periods.
Discharge Line Ball Valves
Discharge line ball valves are tted to ensure ease of maintenance during shut down periods.
Filter Driers
Filter driers are tted to ensure that the expansion device is protected from any potential contaminants in the system.
This can be serviced with changeable inner cores.
HP / LP Transducers and Switches
HP / LP Transducers and switches are tted to the unit to protect against high or low pressures.
High pressure switches are manual reset.

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
15
Chiller Technical Manual 7267818 V1.13.0_01_2018
Electronic Expansion Valves (EEV)
Electronic expansion valves differ to the normal thermostatic expansion valves in
their ability to maintain control of the suction superheat at reduced head pressures.
This can lead to signicant energy savings particularly at reduced loading and low
ambient temperatures.
Using an EEV allows for good refrigeration control whilst operating at part load and
lower ambient conditions with a reduced condensing pressure. By tting an EEV and
adjusting the head pressure control setting an increase in the system EER (Energy
Efciency Ratio) can typically be seen at lower ambient conditions.
The Mollier diagram shown below helps to illustrate how this increase in efciency is
achieved.
Electronic expansion valves differ to normal thermostatic expansion valves in their
ability to maintain control of refrigerant ow and the suction superheat at reduced
head pressures. The turn-down rate of a typical EEV is superior to that of its
thermostatic equivalent, such that a reduced optimum condensing pressure can be
maintained at low compressor load. However low the load is on the compressor,
from zero to 100%, there will not be a problem with turn down, even down to 30% of
the valves rated capacity.
Key:
TEV Cooling cycle @ 22°C ambient with a conventional TEV tted.
EEV Cooling cycle @ 22°C ambient, demonstrating a typical EEV condensing temperature taking full advantage of
lower ambient air temperatures (below 30°C).
Heat of Rejection
Reduction in
Compressor Input
Power
Enthalpy kJ/kgIncrease in
Cooling Duty
Evaporating
Pressure
Reduced
Condensing
Pressure
Presssure
Bara
Thermostatic Expansion Valve (1)
Electronic Expansion Valve (2)
1
2
3
4
1. Compression
2. Condensation
3. Expansion
4. Evaporation

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
16
Chiller Technical Manual 7267818 V1.13.0_01_2018
Condenser Coils
Large surface area coils ideally positioned to optimise airow and heat transfer,
manufactured from micro channel coil.
Head Pressure Control
Electronic head pressure controllers are tted which modulate the fan speed
to maintain a constant condensing pressure, allowing the system to operate
satisfactorily in ambient temperatures as low as -30°C.
Head pressure can be set, monitored and values viewed at the microprocessor
display.
Corrosion Resistant Coated Coils
In atmospheres where high corrosion is anticipated a corrosion resistant epoxy
coating is applied to the aluminium ns.
Evaporator
Shell and Tube Heat Exchanger(s) will allow optimum heat transfer between
media. Each heat exchanger shall be insulated with closed cell polyurethane
foam to Class 1 re rating.
A immersion heater is tted to the single evaporator and will protect against
freeze up in ambient temperatures as low as -30°C. This is however subject to
the Freeze protection policy.
Internal water pipework is trace heated.
Connections for External Trace Heating (230V/1PH / 50Hz / 500W) available.

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
17
Chiller Technical Manual 7267818 V1.13.0_01_2018
Electrical
Electrical Overview
Location of Electrical components within the chiller.
A weatherproof electrical power and controls panel shall be situated at the end of the unit and contains:
●Individual mains power isolation for each circuits compressors.
●Separate electrical isolation for fans.
●Dedicated bus-bar chamber for connection of incoming 3 phase and earth mains power supply.
● Emergency stop tted to controls compartment door.
●Separate, fully accessible controls compartment allowing adjustment of set points whilst the unit is operational.
●Circuit breakers for protection of all major unit components.
●Phase rotation relay incorporating phase loss protection.
●The electrical power and control panel is wired to the latest European standards and codes of practice.
●Mains supply is 3 phase and a neutral is not required, refer to interconnecting wiring.
●Separate 230V 1ph 50Hz permanent supply is required for the controls and safety features. Isolator allows for a
maximum cable size of 10 mm.
●Electrical terminals for external evaporator pipe work trace heating (230V / 500 Watt) are provided. The external
trace heating is tted by others.
Pumps
Circuit 3
Compressors
Bus-bar Chamber
Fans
Power Factor
Correction
Circuit 1
Compressors
Panel Ventilation
Controls
Circuit 2
Compressors

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
18
Chiller Technical Manual 7267818 V1.13.0_01_2018
Phase Rotation Protection
A phase sequence relay shall be tted for units containing 3 phase scroll compressors, to prevent possible damage by
running the compressor in the wrong direction.
Automatic Power Factor Correction Feature
The automatic power factor correction shall be tted to the Chillers electrical distribution system. This feature will provide
automatic regulation of unit power factor, taking into account all AC load types in the form of compressors, fans and
pumps.
The power factor correction system consists of a PFC regulator and a number of dissimilar sized capacitors that are
switched in by means of contactors. The regulator type used has 6 staged outputs that switch in a binary fashion
resulting in a total number of 64 unique capacitor step values.
During operation the PFC regulator measures the reactive power drawn by the unit and then dependant on the
instantaneous unit load and user congurable target PF value, automatically switches in the necessary capacitor stages
to achieve the desired unit target PFC. Factory set to a 0.98PF.
Single Point Isolation
Single point isolation shall be tted as a standard feature.The feature is however available to be removed upon request,
subject to your own 3 phase unit mains isolator.
Electronic Soft Start
The electronic soft start enables the chiller compressor motor to be ramped to speed with the minimum full load current.
Further benets include removal of nuisance tripping, supply voltage dips and motor overheating.
Power Meter
A power meter shall be tted to the unit. Voltages, currents and power inputs can be monitored and recorded giving
power usage of the chiller. Current transformers are tted to the unit’s incoming supply.
Optional Features

Chillers
DeltaChill™ Air Cooled and FreeCool
Introduction
19
Chiller Technical Manual 7267818 V1.13.0_01_2018
Control Panel Light
A control panel light shall be tted to enable maintenance to be carried out during poor light conditions.
Maintenance Socket
A 10 A single phase maintenance socket is available located within the control panel. This socket enables UK plugs to
be connected.
Control Panel Low Ambient Protection
Supplementary heating can be offered to the control panel to ensure components such as LCD displays operate in low
ambient conditions.
Mains Cable Entry
The unit main cable can enter from either side of the electrical control panel.
R410A Leak Detection
The refrigerant leak detection is located within the compressor enclosure (tted as standard with leak detection option).
The sensor is positioned at the lowest point to ensure correct operation. Detection rate of 100 ppm ensures detection in
case of refrigerant leakage. The leak detector has relay outputs allowing for alarm monitoring via the Airedale controller.
This relay output can provide facilities for refrigerant pump down for refrigerant containment.
The refrigerant leak detection assures best environment practices in accordance with the Building Research
Establishment Environmental assessment method (BREEAM) pollution section.
A premium package is available that monitors refrigeration parameters and determines if loss of refrigerant is occurring.
This can detect which circuit is leaking from these parameters making an intelligent decision of potential shut-down of
the unit.
Optional Features
Twin cable
gland
Twin cable
gland
Access
panel
Single cable
gland Maximum cable gland sizes
Single 1 x M75S
Twin 2 x M63S

Chillers
Introduction
DeltaChill™ Air Cooled and FreeCool
20
Chiller Technical Manual 7267818 V1.13.0_01_2018
Condenser Fan and Motor - AC
Axial fan assemblies with nger proof grille and incorporating external rotor AC motor technology, capable of highly
accurate discreet speed control., Discharges air vertically. The fans offer maximum performance whilst keeping sound
levels to a minimum.
Condenser Fans
High Airow EC Fans
Additional free cooling is available when a high air volume EC Fan is selected.
This option is only available with the Free cool chiller.
Energy saving Electronically Commutated (EC) Fan
Motor
Each 800 mm diameter fan incorporates on board electronics
with AC / DC Conversion and inverter driven DC motor
control to offer unparalleled high efciency levels combined
with smooth step-less speed control and quiet operation.
Sickle blades reduce air turbulence to minimise sound levels
and power consumption whilst maximising performance.
The long bell mouth design provides improved
aerodynamics, up to 10% more air movement, and an extended vertical throw of air to reduce the chance of air re-
circulation. As standard the enclosure is complete with an integral nger proof grille.
The fans offer maximum airow performance while keeping sound levels to a minimum.
A mains EMC lter is tted when the EC fan option is selected with the unit. The lter is design for convenient mains
connection within the bus bar chamber.
The in built EC fan control module allows for fan speed modulation from 15-100%, a standard AC fans modulating range
is typically 40-100% of full fan speed.
The EC fan presents superior energy efciency at full and reduced fan speed compared to the equivalent AC fan motor,
offering efciency savings anywhere between 30 to 100% compared with an AC fan.
Fan speeds are factory set depending on sound level variant.
Standard voltage regulated (VR) fan speed controllers offer a linear response. By comparison the EC fan is adjusted on
demand via the unit microprocessor with precision, offering substantial energy savings. The following illustration shows
a comparison of the typical power input required by each method.
Fan speed of 60%
Voltage regulated input power required 60%
EC input power required 18%
EC (Electronically Commutated) Fan Speed Control
Voltage Regulated Fan Speed Control
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Fan Speed %
Input Power %