AIREDALE DR Series User manual

Dry coolers
DR10-DR95
TECHNICAL MANUAL

DryCooler Condensers
2Dry Coolers Technical Manual 9308503 V2_06_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 eff ective 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 off ers 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.

General Specication 4
Unit Identication 4
Standard Features 5
Electrical 5
Optional Extras - Energy Saving 6
Optional Extras – General 6
Installation data 7
Case Sizes 7
Ambient Temperature Sensor Location 8
Dimensions/Weights/Positioning 11
Horizontal case size 1 and 2 (1 fan) 12
Vertical case size 1 and 2 (1 fan) 13
Horizontal case size 3 (2 Fans) 14
Vertical case size 3 (2 Fans) 14
Horizontal case size 4 (3 Fans) 15
Vertical case size 4 (3 fans) 16
Vertical case size 5 (4 fans) 18
Unit Lifting 19
Operating Limits 20
Performance Data – Dry Coolers 20
Standard Dry Cooler Fan 20
Sound Data 22
Horizontal 23
Vertical 24
Mechanical Data 25
Waterside Pressure Drop 29
Electrical Data 30
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Introduction
Dry Coolers Technical Manual 9308503 V2_06_2020
Contents

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Introduction
Dry Coolers Technical Manual 9308503 V2_06_2020
General Specication
Unit Identication
DR 12 H
DR Dry Cooler – Water / Glycol
10 - 95 Model Size (expressed as Total Heat Rejection in kW)
HHorizontal Air Discharge
VVertical Air Discharge
Introduction This range comprises of 14 air cooled dry cooler models with total heat rejection 10 – 95
kW
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 dispatched following extensive leak and pressure testing and carry a holding
charge of inert gas.
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 in version 2006/42/EC
Pressure Equipment Directive (PED) 2014/68/EU
To comply with these directives appropriate national & harmonised standards have been
applied. These are listed on the Declaration of Conformity, supplied with each product.
Pressure Equipment Directive
Maximum and Minimum Operation Temperature (TS) and Pressure (PS)
Waterside
Allowable Temperature Range (TS), = Min -20°C* to Max 55°C**
Maximum Allowable Pressure (PS), = High Side 10 Barg
*Based on the waterside temperature in the unit off state in the lowest permitted ambient temperature.
**Based on the waterside temperature in the unit off state in the highest permitted ambient temperature.

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Introduction
Dry Coolers Technical Manual 9308503 V2_06_2020
Standard Features
Construction Unit cabinets shall be 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 shall be supplied attached to the unit via captive 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 shall be removed
and stored safely if not required.
Fan & Motor Assembly
All Models
The external rotor AC motor shall allow the use of a low power output, single phase,
and speed controllable motor to power the fan.
The motor shall have inbuilt thermal overload protection and the assembly shall be
supplied complete with a nger guard for protection.
Shall be available in either horizontal or vertical air discharge orientation, please
specify at order.
Electrical All electrical components shall be rated for all year round outdoor use.
All wiring shall be colour coded and numbered for identication. All units shall be wired
in accordance with current local and European standards.
Main Electric Isolator A weatherproof mains isolator shall be tted to ensure complete unit isolation of the
electrical panel during adjustment and maintenance.
IMPORTANT
IMPORTANT
Only 2 units may be stacked together.
Vertical Air Discharge As standard, unit legs shall be attached and delivered in the horizontal air discharge
mode and shall be repositioned on site to offer vertical air discharge mode, refer to
Dimensions / Weights / Positioning, for details.
To ensure the unit isolator and fan speed controller are in the correct orientation for vertical air
discharge please specify at order.

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Optional Extras - Energy
Saving
Electronically
Commutated (EC) Fan
Motor
Shall incorporate external EC rotor motor technology to provide highly accurate
discreet speed control. The fans offer maximum air ow performance while keeping
sound levels to a minimum.
Each fan shall incorporate 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 efciency and simple speed control of
a DC motor. The EC fan shall offer signicant power reduction in comparison with
equivalent AC fan at both full and modulated fan speeds. The inbuilt EC fan control
module shall allow for fan speed modulation from 0-100%, the modulating range of a
standard AC fan is typically 40-100% of full fan speed.
Optional Extras – General
Corrosion Resistant Coated
Coils
For aggressive atmospheres a corrosion resistant coating shall be applied to the
aluminium ns.
Shut Off Valves Where unit isolation for easier maintenance is required, shut off valves shall 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.

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Dry Coolers Technical Manual 9308503 V2_06_2020
Installation
Installation data
Case Sizes
Outdoor Unit
CR12H-0 DR10H-0
CR16H-0 DR12H-0
CR22H-0 DR15H-0
CR26H-0 DR20H-0
CR30H-0 DR25H-0
CR35H-0 DR30H-0
CR50H-0 DR35H-0
CR60H-0 DR45H-0
CR65H-0 DR40H-0
CR75H-0 DR50H-0
CR80H-0 DR55H-0
CR95H-0 DR75H-0
CR105H-0 DR70H-0
CR130H-0 DR95H-0
CR140H-0 -
CR165H-0 -
A
B
B
C
C
D
D
E
E
The range of condensers and dry coolers are grouped together for easier identication.
Case sizes 1-5 (16 Condensers, 14 Dry coolers)

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Installation
Ambient Temperature Sensor Location
Horizontal Airow
In the case of a unit with a horizontal airow specied, the location shown in gure 1 will be the nal position of the
ambient temperature sensor, tted in house before shipment.
Figure 1: Ambient Sensor Location

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Dry Coolers Technical Manual 9308503 V2_06_2020
Installation
Vertical Airow
For units selected with a vertical airow, the ambient temperature sensor should be mounted where shown in gure 1.
This will be for transport purposes only. Once the unit has been installed the bracket is to be removed from this location
and fastened to the bracket attached to the coil, shown in gures 3-5.
Figure 2: Sensor Mounting Location
Figure 3: New Sensor Bracket
2 OFF M5 NUTSERTS

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Installation
Figure 4: Existing Bracket Mounting Position
Figure 5: Sensor Location Overview

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Dry Coolers Technical Manual 9308503 V2_06_2020
Installation
Dimensions/Weights/Positioning
IMPORTANT
Unit diagrams can be supplied on request. The following illustrations show the unit following xing
leg re-orientation, instructions are provided for this at delivery.
IMPORTANT
The legs attached to the top of the unit are for lifting and stacking and may be removed and stored
safely if not required.
Stacking Units
Positioning condensers stacked on top of each other can cause the bottom unit to be starved of air. It is therefore
required that additional clearance is allowed.
Single unit clearance is 500mm, stacked units clearance is 1500mm.

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Installation
Positioning and Clearance
• Unit must be positioned on an even base to ensure correct operation.
• Observe airow and maintenance clearances.
• Where multiple units are installed, due care should be taken to avoid the discharge air from each unit adversely
affecting other units in the vicinity.
• When mounting the units adjacent to a wall or other vertical surface, the condenser should be positioned with the
coil side facing the wall.
• Check all the services are present and accessible.
Mounting
Fix the condenser down using the appropriate bolt holes in the unit xing legs .
Horizontal Airow Conguration
Clearance is required as below. Considerations must be taken into account ensuring air is not recirculated. Recirculated
air could cause the unit to malfunction.
• Avoid where possible siting the unit where wind and air recirculation may interfere with the fan operation.
3000
500
500 500
500
500
500
500
Vertical Airow Conguration
Clearance is required as below. Consideration must be given to ensure air is not recirculated by overhead obstructions
such as pipework or ducting. Recirculating air could cause the unit to malfunction.
Dimensions in mm
Dimensions in mm
If the unit is installed in particularly windy locations, the provision of wind breaks may be required.
For such applications a vertical discharge unit is recommended or where horizontal airow could
be obstructed.
IMPORTANT

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Installation
Horizontal case size 1 and 2 (1 fan)
Vertical case size 1 and 2 (1 fan)
BF
G
D C E
D
A
H
150mm
O12.7
A
O12.7
F
E
BC
G
BF
G
D C E
D
A
H
150mm
O12.7
A
O12.7
F
E
BC
G
DIMENSIONS (mm)
Standard Fan
A B C D E F G
DR10 1167 1095 820 246 32 1000 234
DR12 1167 1095 820 246 32 1000 234
DR15 1167 1095 820 246 32 1000 234
DR20 1167 1095 820 246 32 1000 234
DIMENSIONS (mm)
Standard Fan
A B C D E F G H
DR10 822 246 32 920 1126 500 1167 700
DR12 822 246 32 920 1205 500 1167 700
DR15 822 246 32 920 1126 500 1167 700
DR20 822 246 32 920 1205 500 1167 700

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Installation
Horizontal case size 3 (2 Fans)
DIMENSIONS (mm)
Standard Fan
A B C D E F G
DR25 1167 2177 1917 232 32 1000 234
DR30 1167 2177 1917 232 32 1000 234
DR35 1167 2177 1917 232 32 1000 234
DR45 1167 2177 1917 232 32 1000 234
Vertical case size 3 (2 Fans)
DIMENSIONS (mm)
Standard Fan
A B C D E F G H
DR25 1918 232 32 920 1126 500 1167 700
DR30 1918 232 32 920 1205 500 1167 700
DR35 1918 232 32 920 1126 500 1167 700
DR45 1918 232 32 920 1205 500 1167 700
F
H
58mm
7/8" INLET CONNECTION
(DISCHARGE)
7/8" OUTLET
CONNECTION (LIQUID)
(FIXING CENTRES)
G G
D C E
B
A
F
G
B
D C E
A
O12.7
F
G
B
A
D C C E
O12.7
F
D
E
G
B C
A
(FIXING CENTRES)
E
F
A
O12.7
150mm
D
FIXING CENTRES
H
O12.7
AA
D
F
E
BC
G
H
150mm
B
G
C

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Installation
Horizontal case size 4 (3 Fans)
DIMENSIONS (mm)
Standard Fan
A B C D E F G
DR40 1167 3560 1650 232 32 1000 234
DR50 1167 3560 1650 232 32 1000 234
DR55 1167 3560 1650 232 32 1000 234
DR75 1167 3560 1650 232 32 1000 234
Vertical case size 4 (3 fans)
DIMENSIONS (mm)
Standard Fan
A B C D E F G H
DR40 1650 232 32 920 1126 500 1167 700
DR50 1650 232 32 920 1205 500 1167 700
DR60 1650 232 32 920 1126 500 1167 700
DR75 1650 232 32 920 1205 500 1167 700
F
H
58mm
7/8" INLET CONNECTION
(DISCHARGE)
7/8" OUTLET
CONNECTION (LIQUID)
(FIXING CENTRES)
G G
D C E
B
A
F
G
B
D C E
A
O12.7
F
G
B
A
D C C E
O12.7
F
D
E
G
B C
A
(FIXING CENTRES)
E
F
A
O12.7
150mm
D
FIXING CENTRES
H
O12.7
AA
D
F
E
BC
G
H
150mm
B
G
C

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Installation
Horizontal case size 5 (4 fans)
Vertical case size 5 (4 fans)
G
F
DCC
B
C
A
E
O12.7
H
150mm
O12.7
AAA
D
BC
E
F
D
G
F
DCC
B
C
A
E
O12.7
H
150mm
O12.7
AAA
D
BC
E
F
D
DIMENSIONS (mm)
Standard Fan
A B C D E F G
DR70 1167 4644 1460 232 32 1000 234
DR95 1167 4644 1460 232 32 1000 234
DIMENSIONS (mm)
Standard Fan
A B C D E F G H
DR70 1460 232 32 920 1126 500 1167 700
DR95 1460 232 32 920 1205 500 1167 700

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Dry Coolers Technical Manual 9308503 V2_06_2020
Installation
Unit Lifting
General
• Employ lifting specialists
• Local codes and regulations relating to the lifting of this type of equipment should be observed
• Each chain/sling must be capable of lifting the whole unit
• Lift the unit slowly and evenly
IMPORTANT
Only use lifting points provided. Do not lift from the pipework connections as this may damage the unit.
• Do not use 1 chain between 2 lifting points to avoid load shift.
• Ensure that chains/slings DO NOT crush the casework, coil or fan assemblies.
• If the unit is dropped it should immediately be checked for damage and reported to Airedale.
• Airedale will accept no responsibility for mishandling during the positioning of the equipment.
Horizontal Air Discharge
Use lifting eyes attached to individual slings/chains (supplied by others) and attach 2 to every top leg using the holes
provided as illustrated. Maximum of 6 slings/chains.
Check the unit is as ordered, discrepancies or transit damage should be reported to
Airedale immediately.
Care should be taken to ensure the unit does not sustain damage before it is lifted into
nal position.
CAUTION
LIFT
LIFT

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Installation
Vertical Air Discharge
Use lifting eyes attached to individual slings/chains (supplied by others) and attach 1 to the top of every leg using the
holes provided as illustrated. Maximum of 6 slings/chains.
LIFT
60°
Re-Orientation To Vertical Discharge - CS Units Only
1. Remove the xings securing the unit to the pallet.
2. In line with horizontal discharge lifting instructions, lift the unit sufciently to gain access to the lower leg xings.
3. Reposition and secure the lower 2 legs to the corner of the unit using the xings and hole positions provided to
both faces. Note, model sizes CR80 & CR105 have an additional mid support leg, this should also be adjusted and
secured.
4. Lower and rest the unit down to oor and reposition and secure the upper legs as described in Step 3.
5. In line with vertical discharge lifting instructions lift the unit slowly into vertical orientation.
It is strictly prohibited to use the connections, which are delicate parts of the Coil, as
anchoring points when lifting or handling the unit. This would cause serious damage to
the Coil and serious risks for the safety of persons and goods.
CAUTION

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Dry Coolers Technical Manual 9308503 V2_06_2020
Technical
Performance Data – Dry Coolers
Standard Dry Cooler Fan
Water Entering /
Leaving Ambient
Temperature °C 25°C 30°C 35°C 40°C 45°C
Output Output Output Output Output
(kW) (kW) (kW) (kW) (kW)
DR10
35°C/30°C 11 ----
40°C/35°C 19.6 11 ---
45°C/40°C 28.1 19.6 11.1 - -
50°C/45°C 36.6 28 19.6 11.1 -
55°C/50°C 45 36.4 27.9 19.5 11.1
DR12
35°C/30°C 13.6 - - - -
40°C/35°C 24.5 13.7 - - -
45°C/40°C 35.2 24.5 13.7 - -
50°C/45°C 45.9 35.1 24.5 13.8 -
55°C/50°C 56.6 45.7 35.05 4.4 13.8
DR15
35°C/30°C 15..4 - - - -
40°C/35°C 25.6 15.3 - - -
45°C/40°C 35.6 25.4 15.3 - -
50°C/45°C 45.4 35.2 25.2 15.2 -
55°C/50°C 55.2 44.9 34.9 25 15.1
DR20
35°C/30°C 18.3 - - - -
40°C/35°C 31.9 18.3 ---
45°C/40°C 45.1 31.7 18.3 - -
50°C/45°C 58.1 44.8 31.6 18.3 -
55°C/50°C 71.5 57.7 44.4 31.4 18.3
DR25
35°C/30°C 24.4 - - - -
40°C/35°C 43.1 24.5 - - -
45°C/40°C 61.5 43 24.5 - -
50°C/45°C 79.7 61.2 42.9 24.5 -
55°C/50°C 98 79.3 60.9 42.8 24.6
DR30
35°C/30°C 30.6 - - - -
40°C/35°C 54.5 30.7 - - -
45°C/40°C 78 54.5 30.8 - -
50°C/45°C 101.4 77.8 54.4 30.9 -
55°C/50°C 124.9 101 77.5 54.3 30.9
DR35
35°C/30°C 34.8 - - - -
40°C/35°C 57.4 34.6 - - -
45°C/40°C 79.5 56.9 34.3 - -
50°C/45°C 101.4 78.7 56.4 34.1 -
55°C/50°C 123.3 100.4 77.9 55.9 33.9
Standard Variable Speed Head Pressure Control
Minimum Ambient Air DB °C -20°C
Maximum Ambient Air DB °C +48
Optional On/Off Head Pressure Control
Minimum Ambient Air DB °C -0°C
Maximum Ambient Air DB °C +48
(1) For conditions outside those quoted, please contact Airedale.
Operating Limits

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Technical
Water Entering /
Leaving Ambient
Temperature °C 25°C 30°C 35°C 40°C 45°C
Output Output Output Output Output
(kW) (kW) (kW) (kW) (kW)
DR40
35°C/30°C 42 - - - -
40°C/35°C 72 41.9 - - -
45°C/40°C 101.5 71.7 41.8 - -
50°C/45°C 130.8 101 71.4 41.8 -
55°C/50°C 160.2 130 100.3 71 41.6
DR45
35°C/30°C 44.6 - - - -
40°C/35°C 74.4 44.4 - - -
45°C/40°C 103.4 73.8 44.2 - -
50°C/45°C 132.3 102.5 73.2 43.9 -
55°C/50°C 161.2 131.1 101.6 72.6 43.6
DR50
35°C/30°C 53.1 - - - -
40°C/35°C 91.7 53.1 - - -
45°C/40°C 129.7 91.4 53 - -
50°C/45°C 167.6 129.2 91.1 53 -
55°C/50°C 205.5 166.8 128.6 90.8 52.9
(1) Output kW refers to the dry cooler heat rejection
Water Entering /
Leaving Ambient
Temperature °C 25°C 30°C 35°C 40°C 45°C
Output Output Output Output Output
(kW) (kW) (kW) (kW) (kW)
DR55
35°C/30°C 55 - - - -
40°C/35°C 91.2 54.8 - - -
45°C/40°C 126.3 90.4 54.4 - -
50°C/45°C 161.2 125.1 89.6 54 -
55°C/50°C 196 159.5 123.8 88.7 53.7
DR70
35°C/30°C 74.7 - - - -
40°C/35°C 122.6 74.2 - - -
45°C/40°C 169.4 121.5 73.7 - -
50°C/45°C 215.8 167.6 120.3 73.1 -
55°C/50°C 262.1 213.4 165.8 119.2 72.6
DR75
35°C/30°C 72.6 - - - -
40°C/35°C 121.5 72.3 - - -
45°C/40°C 169.2 120.6 72 - -
50°C/45°C 216.6 167.7 119.6 71.6 -
55°C/50°C 263.8 214.5 166.2 118.7 71.2
DR95
35°C/30°C 98.5 - - - -
40°C/35°C 163.3 97.9 - - -
45°C/40°C 226.7 162 97.4 - -
50°C/45°C 289.7 224.6 160.6 96.7 -
55°C/50°C 352.6 286.9 222.5 159.3 96.1
(1) Output kW refers to the dry cooler heat rejection