
INSTALLATION, OPERATING &
MAINTENANCE MANUAL
Ultima Compact Condensing Unit
Air Cooled Condensing Unit
30kW - 450kW

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
About Airedale Products & 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, we have introduced Airedale Service, who
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 our Airedale Service 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.
Where applicable, effective removal of condensate is achieved by gradient drainage to outlets and
where used, humidification systems produce sterile, non-toxic steam during normal operation.
For effective prevention of such risk it is necessary that the equipment is maintained in accordance
with Airedale recommendations.
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.
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.
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.
For information, visit us at our Web Site: www.airedale.com
AIAC 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. AIAC 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 AIAC 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
AIAC Ltd.
2013 Airedale International Air Conditioning Limited. All rights reserved. Printed in the UK.

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GENERAL STATEMENT 4
WARRANTY 5
GENERAL DESCRIPTION 6
Unit Identification 6
Introduction 6
Standard Features 6
Features - Variations 8
Optional Extras - Energy Saving 9
Optional Extras – General 9
INSTALLATION DATA 10
Dimensions 10
Unit Lifting 14
Anti Vibration Mounting – Optional 15
Positioning 16
Refrigeration System 17
Refrigeration Connections 18
Pipe Sizing Guide 18
Pipework Installation 18
Pressure Testing 19
Evacuation 19
Electrical 19
Interconnecting Wiring 20
Electrical Data 21
CONTROLS 25
Viewing Unit Operating Status 26
Setting up 26
Alarms 27
COMMISSIONING DATA 28
Operating Limits 28
Mechanical Data 28
Unloading Protection 28
COMMISSIONING PROCEDURE 29
Pre Commissioning Checklist 29
Commissioning Checklist 31
MAINTENANCE 34
General Maintenance 34
Compressor Maintenance 35
Shut Down Periods 35
PARTS IDENTIFICATION 36

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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.
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.
1 Service and maintenance of Airedale equipment should only be carried out
by Technically trained competent personnel.
2 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.
3 Also ensure that there are no other power feeds to the unit such as fire alarm
circuits, BMS circuits etc
4 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.
5 Refrigerant used in this range of products is classified under the COSHH
regulations as an irritant, with set Occupational Exposure Levels (OEL) for
consideration if this plant is installed in confined or poorly ventilated areas.
6 A full hazard data sheet in accordance with COSHH regulations is available
should this be required.

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To be read in conjunction with Airedale International Air Conditioning Ltd standard Conditions
of Sale.
The equipment carries Airedale’s standard warranty for a period of 24 months from the date of
despatch or of invoice which ever is the sooner in respect of non-consumable parts only and
does not include for the cost of labour incurred during the investigation or replacement of a
defective item.
WARRANTY IS ONLY
VALID IN THE EVENT
THAT:
1 The equipment is serviced & maintained by Airedale or an approved Airedale company
in accordance with the Installation & Maintenance manual provided, during the
Warranty Period.
2 Commissioning is carried out by Airedale or an approved Airedale company.
3 Commissioning documents have been completed and returned to Airedale within
28 days of the date of commissioning.
4 Replaced faulty parts have been returned to Airedale within 21days of replacement
for evaluation.
Any spare part supplied by Airedale under the warranty shall be warranted for the unexpired
period of the warranty or 3 months from delivery whichever period is the longer, with the
exception of compressors on which a further 12 months warranty is granted.
When a component part fails, a replacement part should be obtained through our Spares
department. If the part is considered to be under warranty, the following details are required to
process this requirement.
Full description of part
required, including Airedale's
part number, if known.
Faulty Component Return Tag
SERIAL No (where applicable)
FAULTY DESCRIPTION (‘Faulty’ or ‘Defective’ not sufficient)
2. Component (if different)
Airedale International Air Conditioning Limited
Leeds Road, Rawdon, Leeds LS19 6JY
Tel: 0113 239 1000 Fax: 0113 250 7219
To be filled in and attached complete to faulty component
The original equipment serial
(U) or (BP) number.
An appropriate purchase
order number.
A spares order will be raised under our "G" number system and the replacement part will be
despatched, usually within 24 hours should they be in stock.
When replaced, the faulty part must be returned to Airedale with a suitably completed and
securely attached "Faulty Component Return" (FCR) tag. FCR tags are available from Airedale
and supplied with each "G" order.
On receipt of the faulty part, suitably tagged, Airedale will pass to its Warranty department,
where it will be fully inspected and tested in order to identify the reason for failure, identifying at
the same time whether warranty is justified or not.
On completion of the investigation of the returned part, a full "Report on Goods Returned" will
be issued. On occasion the release of this complete report may be delayed as component
manufacturer becomes involved in the investigation.
When warranty is allowed, a credit against the "G" number invoice will be raised. 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 component
Incorrect site installation
Incomplete commissioning documentation
Inadequate site installation
Inadequate site maintenance
Damage caused by mishandling
Replaced part being returned damaged without explanation
Unnecessary delays incurred in return of defective component
All faulty components returned under warranty are analysed on a monthly basis as a means of
verifying component and product reliability as well as supplier performance. It is important that
all component failures are reported correctly.

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AIR COOLED CONDENSING UNIT
Ultima Compact Condensing Unit - Cooling Only
Model Size (Expressed as Nominal Cooling in kW)
Single Circuit - Quiet (Models 30-80 (Except 75) Only)
Single Circuit - Super Quiet (Models 30-80 (Except 75) Only)
Double Circuit - Standard
Double Circuit - Super Quiet
Single or Double Row of Fans
The Airedale range of Ultima Compact air cooled condensing units covers the nominal
capacity range 30kW to 450kW in 24 model sizes. The range is available with many
optional variations including Quiet and Super Quiet sound level variants.
The range is suitable for a wide range of split-system applications such as Cold Storage,
large Retail Comfort Cooling, Process Cooling, Healthcare, Hi-Tech environments
and leisure.
Attention has been placed on maximising the unit’s performance while keeping the sound
and vibration levels and footprint to an absolute minimum.
Airedale certify that the equipment detailed in this manual conforms with the following
EC Directives:
Electromagnetic Compatibility Directive (EMC)
Low Voltage Directive (LVD)
89/392/EEC in the version 98/37/EC
Pressure Equipment Directive (PED)
To comply with these directives appropriate national & harmonised standards have been
applied. These are listed on the Declaration of Conformity, supplied with each product.
The range has been designed and optimised for operation with the ozone benign
R407C refrigerant.
The base is fabricated from galvanised steel to ensure a tough, durable,
weatherproof construction.
The superstructure is manufactured from galvanised sheet steel coated with epoxy baked
powder paint to provide a durable and weatherproof finish. Standard unit colour is Light
Grey (RAL 7035).
Compressors and heat exchangers are mounted on a rigid galvanised heavy-duty sub
frame. Fully weatherproofed electrical panels are situated at one end of the unit. Access
to the compressors is via end panels adjacent to the electrical control panel.
Dedicated Compressor Enclosure
Condenser Fan Discharge Plenum

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Large surface area coil(s) ideally positioned to optimise airflow and heat transfer,
manufactured from refrigeration quality copper tubes with mechanically bonded
aluminium fins.
Axial fan assemblies with fingerproof grille and incorporating external rotor motor
technology, to provide highly accurate discreet speed control, discharge air vertically. The
fans offer maximum performance while keeping sound levels to a minimum.
Electrical supply dependent upon model size, refer to Electrical Data.
Electronic head pressure controllers are fitted which modulate the fan speed to maintain
a constant condensing pressure, allowing the system to operate satisfactorily in ambient
temperatures as low as -20°C.
Head pressure can be set, monitored and values viewed at the microprocessor keypad.
Scroll compressors comprising:
Internal motor protection
Internal pressure relief
Non return valve
External discharge temperature protection
Oil sight glass
Sump heater
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.
Each refrigeration circuit is supplied with the following:
Holding charge of Helium
Suction line ball valve
Low pressure cut out with manual reset via microprocessor controller
High pressure switch with manual reset
Pressure relief valve with integral rupture disc and indicator gauge
Refer to Features - Variations for further detail.
microprocessor controller can provide 2-6 stages of capacity control,
dependent upon model type, as standard. The controller incorporates full Building
Management System capabilities, full details can be found in the Controls section.
Control management is offered in 1 of 4 of the most common types, to select via the
microprocessor, to be specified at time of order:
Suction Pressure Monitoring
Remote Space Temperature Sensor
Dedicated weatherproof electrical power and controls panels are situated at the end of
the unit and contain:
Separate, fully accessible, controls compartment, allowing adjustment of control
set points whilst the unit is operational
Circuit breakers for protection of all major unit components
Separate, permanent supply for controls/trace heating, 230V/50Hz/1ph
The electrical power and control panel is wired to the latest European standards and
codes of practice.
Refer to Features - Variations for further detail.

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Condensers & Condensing Units
UCCU30, UCCU40,
UCCU50, UCCU60,
UCCU70 &
UCCU80
UCCU75,
UCCU100,
UCCU125 &
UCCU150
UCCU110,
UCCU130,
UCCU160 &
UCCU180
UCCU200,
UCCU225 &
UCCU250
UCCU240, UCCU270,
UCCU300, UCCU330,
UCCU360, UCCU400
& UCC450
4 x eye bolts to BS4278 or Integrated lugs/Mounting feet
Acoustically lined compressor enclosure
Number of Independent Refrigeration Circuits
Scroll Compressor Arrangement
1 x Tandem Set
or 2 x Single
Extra Low speed condenser fan
Door isolated mains power compartments
Dedicated bus-bar chamber for incoming 3-phase &
earth mains power supply (no neutral required)
Phase Rotation Protection

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OPTIONAL EXTRAS - ENERGY SAVING
When applied to the motors of each compressor, the compressor power factor is
controlled to a minimum operating value of 0.95 at the full operating capacity. This
satisfies many supply authorities that may impose surcharges on equipment with power
factor less than 0.95.
OPTIONAL EXTRAS – GENERAL
Condenser Fan Discharge Air Plenum Extension
Power Factor Correction
Epoxy Coated Condenser Coils
Dual Pressure Relief Valve
Discharge Line Ball Valve
Discharge Line non-Return Valve
Suction Line Accumulator
Liquid Receiver & Pressure Relief Valve
Filter Drier & Sight Glass
Phase Rotation Protection
Alternative Refrigerant (Outside EU)

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UCCU30 - UCCU80
(Except UCCU75)
UCCU75 - UCCU150
(Except UCCU80)
Have only 4 fixing and 4 point loadings.
1 Electric Control Panels
2 Mains Electric Isolators
3 Mains Cable Entry
4 20mm Ø Mounting Holes
5 Optional Plenum Extension
6 Refrigeration Connections
7 Single Circuit
8 Dual Circuit
1 Electric Control Panels
2 Mains Electric Isolators
3 Mains Cable Entry
4 20mm Ø Mounting Holes
5 Optional Plenum Extension
6 Refrigeration Connections
7 Emergency Stop

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POINT LOADINGS, WEIGHTS & CENTRE OF GRAVITY (C OF G)
UCCU30 - UCCU80 (Except UCCU75)
UCC75 - UCC150 (Except UCC80)
Have only 4 fixing and 4 point loadings.

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Model D A B C D E F G H J K L
Model DQ A B C D E F G H J K L
Have only 4 fixing and 4 point loadings.
Have only 6 fixing and 6 point loadings.
1 Electric Control Panels
2 Mains Electric Isolators
3 Mains Cable Entry
4 20mm Ø Mounting Holes
5 Optional Plenum Extension
6 Refrigeration Connections
7 Emergency Stop

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POINT LOADINGS, WEIGHTS & CENTRE OF GRAVITY (C OF G)
Have only 4 fixing and 4 point loadings.
Have only 6 fixing and 6 point loadings.

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Employ lifting specialists.
Local codes and regulations relating to the lifting of this type of equipment should
be observed.
Use the lifting eye bolts/lifting lugs provided.
Attach lifting chains to the 4 lifting eye bolts/lifting lugs provided, each chain and
eye bolt must be capable of lifting the whole chiller.
Use the appropriate spreader bars/lifting slings with the holes/lugs provided.
Lift the unit slowly and evenly.
If the unit is dropped, it should immediately be checked for damage and reported
to Airedale Service.
Only use lifting points provided.
The unit should be lifted from the base and where possible, with all packing and
protection in position. If any other type of slinging is used, due care should be taken to
ensure that the slings do not crush the casework or coil.
UCCU30 - 80 (Except UCCU75)
UCCU75 - UCCU250
(Except UCCU80)
8 FANS /2
(Tandem Compressor)
8 FANS /2
(Trio Compressor)

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COMPONENTS:
1 Locating Screw
2 Retaining Nut & Washer
3 Levelling Screw
4 Levelling Lock Nut
5 Retaining Studs
6a Upper Retaining Nuts
6b Lower Retaining Nuts
7 Spring assembly
8 Pressure Plate
9 Top Plate
10 Bolting-down holes
UCC75, 80, 100, 125 & 150
UCCU75, 80, 100, 125 & 150
(1) Unloaded dimension
(2) Refer to relevant Loose Parts Instructions sheet for positioning of each mount.
1 Locate and secure mount using bolting down holes (10) in base plate.
2 Ensure mounts are located in line with the unit base.
3 If applicable, remove compressor enclosure covers to allow access to mount fixing holes in
the unit base.
4 Lock the upper retaining nuts (6a) to the underside of the top plate (9) before a load is
applied.
5 Remove retaining nut and washer (2), lower the unit onto the mounts and replace retaining
nut and washer.
6 Beginning with the mount with the largest deflection, adjust the height of each mount using
the levelling screw (3).
Mountings must be adjusted incrementally in turn. Do not fully adjust 1 mount at a time as
this may overload and damage springs.
7 When all mounts are level, lock each into place using the levelling lock nut (4).
8 Lock all retaining nuts (6a and 6b) to the extreme ends of the retaining studs (5).
Do not connect any services until all anti vibration mounts have been fully adjusted.
Installation Data
ANTI VIBRATION MOUNTING – OPTIONAL

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The installation position should be selected with the following points in mind:
Position on a stable and even base, levelled to ensure that the compressor
operates correctly.
Levelling should be to +/- 5mm.
Where vibration transmission to the building structure is possible, fit spring anti-
vibration mounts and flexible water connections.
Observe airflow and maintenance clearances.
Pipework and electrical connections are readily accessible.
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.
Within a side enclosed installation, the fan MUST be higher than the
enclosing structure.
Figures in brackets indicate airflow and maintenance clearances for side-enclosed
or multiple condensing unit applications.
Ensure there are no obstructions directly above the fans.
Allow free space above the fans to prevent air recirculation.
Prior to connecting services, ensure that the equipment is installed and
completely level.

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OUTDOOR UNIT - ULTIMA COMPACT CONDENSING UNIT
Installation Data
REFRIGERATION SYSTEM
Standard Recommended Installation
1 Suction accumulator (optional - factory fitted)
2 Receiver pump down ball valve (optional - factory fitted)
3 Liquid receiver & pressure relief assembly (optional - factory fitted)
4 Suction & liquid line ball valves (standard - factory fitted)
5 Filter drier (optional - supplied loose)
6 Sight glass (optional - supplied loose)
7 Solenoid valve (supplied by others)
8 Expansion valve (supplied by others)

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REFRIGERATION CONNECTIONS
Connections - Single
Circuit
Connections - Dual Circuit
Suitable For Brazed Connections.
Pipework sizes and routes should be set in accordance with good refrigeration practice.
The suction line should be insulated.
Liquid lines should be insulated in areas of high temperature or when exposed to
direct sunlight.
Special consideration should be given to vertical pipe runs and heat pump installation.
Unit performance will reduce if there are vertical rises of above 5m. Please consult
Airedale Service for risers above 10m.
When insulating refrigerant lines, cut approximately 30 - 50cm longer than the distance
between the units to ensure the insulation goes right upto the unit. Leave connections
uncovered for leak testing.
Remove burrs to the ends of the copper tube, holding the tube downward to avoid
allowing dirt to contaminate the tube.
Where applicable insert flare nuts removed from the pipework terminations and make a
flare at the end of the copper tube to conform with the following:
Inside surface is glossy and smooth
Tapered sides are of uniform length
Refrigeration lubrication is applied to mating surfaces
The installation of a sight glass close to the indoor unit is recommended.
Where applicable braze incoming pipe to rotalock service valve.

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In accordance with PED 97/23/EC, a strength test should be carried out in order to
ensure that all interconnecting joints, pipework and components are sufficiently strong to
cater for maximum permissible operating pressures. Once installation is completed, the
high side of the system should be strength tested with dry nitrogen to a recommended
minimum pressure of 27 barg and the low side to 17 barg.
Pressure testing can be dangerous if not properly conducted, personnel
undertaking pressure testing MUST be technically competent and suitably
qualified.
When installation is complete, the system should be pressure tested.
Fill the system with dry nitrogen to a pressure of between 17 bar/250psig and 34bar/
500 psig.
Record the pressure over a minimum of 60 minutes to detect major leaks (a 24 hour
period should preferably be allowed).
If a reduction in pressure is detected, trace the leak and repair before conducting a further
pressure test and charging.
Evacuation for systems operating with R407C refrigerant to be carried out as follows (for
alternative refrigerants please refer to Airedale).
Use a high vacuum pump and connect to the high and low pressure sides of the system
via a gauge manifold fitted with compound gauges. A high vacuum gauge should be fitted
to the system at the furthest point from the vacuum pump.
Triple evacuation should be used to ensure that all contaminants are removed.
Operate the vacuum pump until a pressure of 1.5 torr (200 Pa) absolute pressure is
reached, then stop the vacuum pump to break the vacuum using oxygen free Nitrogen
until the pressure rises above zero.
The above operation should be repeated a second time.
The system should then be evacuated a third time but this time to 0.5 torr
absolute pressure.
Break with the correct refrigerant, until pressures equalise between the charging bottle
and the system.
As standard the equipment is designed for 400V, 3 phase, 3 wire 50Hz and a
separate permanent 230V, 1 phase, 50Hz supply, to all relevant IEE regulations,
British standards and IEC requirements.
A fused and isolated electrical supply of the appropriate phase, frequency and
voltage should be installed.
The control voltage to the interlocks is 24V. Always size the low voltage interlock
and protection cabling for a maximum voltage drop of 2V.
Wires should be capable of carrying the maximum load current under non-fault
conditions at the stipulated voltage.
Avoid large voltage drops on cable runs, particularly low voltage wiring.
Once the connecting pipework is complete the electrical supply can be connected
by routing the cable through the appropriate casing hole and connecting the
cables, refer to the Wiring Diagram supplied with each unit.
A separately fused, locally isolated, permanent single phase and neutral supply
MUST BE FITTED for the compressor sump heater and control circuits, FAILURE to
do so could INVALIDATE WARRANTY.

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Single Circuit
(not including: leak detector,
and remote setpoint adjust)
UCCU30–
UCCU80
(Excluding
UCCU75)
Mains incoming supply 400V/3PH/50Hz 50Hz
(N2 Only Required For UCCU30-80Q/DQ & UCCU50-60SSQ/DSQ)
Separate Permanent Supply 230V/1PH/50Hz
Circuit 1 24VAC (Suction Pressure Control Option), Compressor.1 24VAC (Digital
I/P Control Option)
Remote On/Off 24VAC, Compressor.2 24VAC (Digital I/P Control Option)
Remote Capacity Control (0-10VDC Control Option)
/ Optional EEV Connections
Mains incoming supply 400V/3PH/50Hz
(N2 Only Required For UCCU30-80Q/DQ & UCCU50-60SSQ/DSQ)
Separate Permanent Supply 230V/1PH/50Hz
Circuit 1 24VAC (Suction Pressure Control Option) / Compressor.1 24VAC (Digital
I/P Control Option)
Unit Remote On/Off 24VAC, Circuit 2 24VAC (Suction Pressure Control Option),
Compessor.2 24VAC (Digital I/P Control Option)
Compressor.3 24VAC (Digital I/P Control Option)
Compressor.4 24VAC (Digital I/P Control Option)
Compressor.5 24VAC (Digital I/P Control Option UCCU240-450 Only Excluding
UCCU250)
Compressor.6 24VAC (Digital I/P Control Option UCCU240-450 Only Excluding
UCCU250)
Remote On/Off 24VAC, Compressor.2 24VAC (Digital I/P Control Option)
Remote Capacity Control (0-10VDC Control Option)
/ Optional EEV Connections

Condensers & Condensing Units
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UCCU30SQ-1/1
UCCU30DQ-1/1
UCCU40SQ-1/1
UCCU40DQ-1/1
UCCU50SQ-2/1
UCCU50DQ-2/1
UCCU60SQ-2/1
UCCU60DQ-2/1
UCCU70SQ-2/1
UCCU70DQ-2/1
UCCU80SQ-2/1
UCCU80DQ-2/1
Max Permanent Incoming Cable Size
Max Mains Incoming Cable Size
Compressor - Per Compressor
UCCU30SSQ-1/1
UCCU30DSQ-1/1
UCCU40SSQ-1/1
UCCU40DSQ-1/1
UCCU50SSQ-2/1
UCCU50DSQ-2/1
UCCU60SSQ-2/1
UCCU60DSQ-2/1
UCCU70SSQ-2/1
UCCU70DSQ-2/1
UCCU80SSQ-2/1
UCCU80DSQ-2/1
All data as above except:
Compressor Nominal Run Amps
- Per Compressor
Based at 7.2°C Evaporating and 54.4°C Condensing temperatures.
Starting amps refers to the direct on line connections.

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Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Max Permanent Incoming Cable Size
Max Mains Incoming Cable Size
Compressor - Per Compressor
All data as above except:
All data as above except:
Compressor Nominal Run Amps
- Per Compressor
Based at 7.2°C Evaporating and 54.4°C Condensing temperatures.
Starting amps refers to the direct on line connections.

Condensers & Condensing Units
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Max Permanent Incoming Cable Size
Max Mains Incoming Cable Size
Compressor - Per Compressor
All data as above except:
All data as above except:
Compressor Nominal Run Amps
- Per Compressor
Based at 7.2°C Evaporating and 54.4°C Condensing temperatures.
Starting amps refers to the direct on line connections.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Max Permanent Incoming Cable Size
Max Mains Incoming Cable Size
Compressor - Per Compressor
All data as above except:
All data as above except:
Compressor Nominal Run Amps
- Per Compressor
Based at 7.2°C Evaporating and 54.4°C Condensing temperatures.
Starting amps refers to the direct on line connections.

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The microprocessor controller offers powerful analogue and digital control to meet a wide
range of monitoring and control features including a real time clock and Industry standard
communication port and network connections.
The controller’s inbuilt display is used for viewing the unit operating status and making
adjustments to control parameters by allowing the operator access to a series of
display pages.
Also featured are a visual alarm and the facility to adjust and display control settings by
local operator for information and control.
08:44 13/05/02 Mst
Remote 0-10V Input
Signal Voltage 05.6V
Unit ON
1 UP/DOWN KEYS
To change Adjustable Fields & Scrolls
up & down available Menus
2 ENTER
Selects Menus & Moves Cursor to
Adjustable Fields Green LED
3 ESC
Green LED lit when Operating Page
displayed, Returns to Operating Page
Screen when pressed
4 PROGRAM
Opens the Available Menus
5 ALARM
Red LED Indicates Alarm Present
6 4 ROW LCD DISPLAY
7 CURSOR (FLASHING): Top Left
Position = “HOME” Indicates adjustable
Fields
The display is used for Viewing Unit Operating Status and Adjusting Customer
Control Settings by allowing the operator access to a series of Menus & sub-menus.
Viewing information is unrestricted, however set up and adjustment requires password
entry, refer to Password Protection.
key to access Menus, the symbol will appear top right and the
first menu will appear in CAPITALS, these indicators shows which menu is selected.
Use the keys to move the indicator to the desired menu and press to
open the menu.
Use the key to move the flashing cursor to adjustable fields and the
keys to change the values.
Press the key to move the cursor to the next field or Home.
When the cursor is Home either use the keys to scroll to next sub-menu or
the
to exit and return to the Standard Operating page.
The Operating Page will appear and remain present following start up of the controller
as illustrated:
13:43 25/11/02 M1
Space Temp. 12.0°C
Supply Temp. 07.0°C
Unit ON:
Indicates current Time, Date, Space and Supply air
Temperatures and Unit On/Off

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Standard Operating
Page cont.
The following Menus can be accessed from the Operating Page, it is recommended that
the display is always returned to the Operating Page by using the
To guard against unauthorised adjustments, a password is required to gain access to
certain menus as defined below.
FACTORY SET PASSWORD PIN NUMBER: 4648 (or Customer chosen number).
When a password is requested use the keys to enter the number and to
access the page.
Menus
(Listed in Sequence)
Enable or Disable the unit
Allows selection of setpoint limits, enables unit on/off
from display, remote on/off and remote pump on/off.
Allows setpoint adjustment, includes supply
temperature setpoint and unit temperature
differential.
Displays current status on digital and analogue inputs
and outputs.
Displays hours run for compressors and pumps (if
fitted). Also includes Electronic Expansion Valves (if
fitted).
Allows adjustment of real time clock, time zones
Display last 100 alarms in chronological order.
VIEWING UNIT OPERATING STATUS
Allows access to view operating status of Digital and Analogue Inputs and Outputs.
Using the Navigation instructions and the wiring diagram provided, the relevant Sub-
Menus can be accessed.
Real Time Clock
(Optional to UCC30-80 Single
Circuit Only)
The units leave the factory set, however follow the Navigation instructions if necessary.
The programme provides 3 On/Off periods per day, 7 days per week. The unit is factory
set for continuous operation.
For further details, please contact Airedale.

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The controller logs and allows viewing of the last 100 conditions recorded in descending
chronological order.
13/05/02 11:32
Event number 001
Alarm Active
37-Diff Pressr Evap
1 A Red LED behind the Alarm key will light in the event of an alarm. To view
the alarms, simply press the key and the keys to scroll through.
2 Auto reset alarms will clear following this first depression of the Alarm key. If
however the Red LED behind the Alarm key remains illuminated, the unit
requires some form of manual reset.
3 For manual reset alarms, isolate the affected circuits before further investigation.
4 To reset or delete the alarms displayed in the alarm screen, simply press
Outlined below is a selection of Common Alarms, a full list is available, please
contact Airedale.
Phase Rotation
(Optional)
A normally closed contact. When Phase Rotation is incorrect all controller outputs are
de-activated.
A normally open contact. On closing, all controller outputs are de-activated.
INDIVIDUAL CIRCUIT
ALARMS
Outlined below is a selection of Individual Circuit Alarms, a full list is available, please
contact Airedale.
When the suction pressure sensor value falls below the value set by the low suction level
for a period exceeding 1 minute (or 3 minutes on compressor start-up), a visual alarm will
be generated at the in-built display and the relevant compressor will be de-activated. On
units with tandem compressors, both compressors from the same circuit will be
switched off.
When the liquid pressure reaches 25 BarG, the relevant circuit will be switched off and an
alarm activated, this can only be rectified by manual reset via the microprocessor.
A normally closed contact when the compressor is operating. If this contact remains open
for a period of 3 seconds during operation of the compressor, a visual alarm is generated
and the relevant compressor will be de-activated. This alarm comprises of compressor
motor protection module, discharge gas thermostat and safety high pressure switch.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Standard Unit with Electronic Fan Speed Control (-20°C)
Minimum Ambient Air DB °C
Maximum Ambient Air DB °C
Refer to Technical Manual - Performance Data - Capacity Data
Minimum Evaporating Temperature °C
Maximum Evaporating Temperature °C
For conditions outside those quoted, please refer to Airedale.
Oil & Refrigerant Charges
UCCU30SQ-1/1
UCCU30DQ-1/1
UCCU40SQ-1/1
UCCU40DQ-1/1
UCCU50SQ-2/1
UCCU50DQ-2/1
UCCU60SQ-2/1
UCCU60DQ-2/1
UCCU70SQ-2/1
UCCU70DQ-2/1
UCCU80SQ-2/1
UCCU80DQ-2/1
UCCU30SSQ-1/1
UCCU30DSQ-1/1
UCCU40SSQ-1/1
UCCU40DSQ-1/1
UCCU50SSQ-2/1
UCCU50DSQ-2/1
UCCU60SSQ-2/1
UCCU60DSQ-2/1
UCCU70SSQ-2/1
UCCU70DSQ-2/1
UCCU80SSQ-2/1
UCCU80DSQ-2/1
Single Circuit - Tandem Scroll / Double Circuit – 2 x Single Scroll
Oil Charge Volume (Total)
Single Circuit / Double Circuit
Oil Charge Volume (Total)
Refrigerant Charge (Total)
Refrigerant Charge (Total)
Compressor - Scroll Hermetic
Oil Charge Volume (Total)
Refrigerant Charge (Total)
Refrigerant Charge (Total)
Oil Charge Volume (Total)
Refrigerant Charge (Total)
Refrigerant Charge (Total)
Unit supplied with a holding charge of Helium, the refrigerant charge is suitable for upto10 metres of interconnecting pipework, additional refrigerant must be added for longer
pipe runs.
Refrigerant should be added to the system via 1/4” schrader connection on the expansion
line as required.
The microprocessor has inbuilt protection against nuisance trips. If the head pressure
rises above 23 barg the system will unload 1 compressor and remain unloaded until the
head pressure drops below 21 barg.
If low pressure drops below the microprocessor setting, the compressor will unload to 1
compressor, if low pressure persists for 1 minute, the circuit will be switched off and
sound an alarm.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
To be read in conjunction with the commissioning sheets provided, items highlighted
should be recorded.
Please ensure all documents have been completed correctly and return to Airedale
Technical Support immediately to validate warranty.
PRE COMMISSIONING CHECKLIST
ALL work MUST be carried out by Technically Trained competent personnel.
The equipment contains live electrical and moving parts, ISOLATE prior to
maintenance or repair work.
The door interlocking MCCB should be in the OFF position and the auxiliary alarm
contact from the MCCB should be linked out.
All pipework is complete and insulated where necessary.
Check for the presence of a refrigerant charge in the condenser side.
Check phase rotation of electrical supply prior to running compressor as
compressor is direction sensitive.
The unit should be visually inspected and any damage noted.
Secure commissioning gauges to the high side of the system, check for a
positive charge.
Check tightness of electrical components and properly terminated.
Check external fuses/MCB are of correct rating.
Check units properly earthed.
Check pipework is earth bonded.
Check that the remote on/off switch (if fitted) is in the off position.
With the MCBs in the off position measure the incoming voltage.
Check Phase Rotation.
Check voltage and frequency at permanent supply.
Measure and record the primary (230V) and secondary (24V) voltages at each of
the transformers, adjust tapping if necessary and record on the
commissioning document.
Check all timer settings are correct.
Check Sump Heater (ensure this is switched on for a minimum of 2 hours
prior to the unit operation).
Check oil level.
Check fans rotate freely.
Check system correctly evacuated.
Check operating of HP/LP cut-out, settings LP cut-out - Auto/HP switch - manual:
High pressure switch - 26 bar ( 400 psi ) - cut out
Low pressure cut-out - 0.5 bar ( 7 psi ) - cut out
Switch on the controls and individual circuits, primary and secondary, MCBs to the
ON position. At this stage the control display panel should be illuminated.
Record Optional Extras.
Record Controller Data.

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Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Disable remote ON/OFF to ensure the unit does not start unintentionally.
The unit will not start until microprocessor control SWITCH 1 is in the ON position.
DO NOT SWITCH TO ON AT THIS STAGE
Adjust the temperature supply and return set points (if necessary, via the chosen
control management scheme) to call for 100% cooling (refer to the
Controls section).
Ensure all KNOBS and SWITCHES are adjusted to suit the design requirements
(refer to the Controls section).
To switch the unit ON, use the microprocessor keypad as follows:
Press
, press , press , press & finally .
There will always be a delay between the enabling of the unit and the energising of
the compressor contactors, anything between 1 to 2 minutes. Be patient.
Check that each circuit trips on low pressure. The alarm should appear within
3 minutes.
The alarm will be recognised at the display circuit trip, to clear the alarms refer
to Alarm Handling.
To switch the unit OFF, use the microprocessor keypad as follows:
Press
, press , press , press & finally .
Fully open all liquid line and discharge service ball valves on each circuit.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
The following should be carried out with a load on the system, otherwise the unit is likely
to short cycle. The following tests are to be carried out on 1 circuit at a time.
Switch the door interlocking MCCB to the ON position but again only on the circuit
which is to be tested.
Adjust the temperature supply and return set points to match the
system requirements.
To switch the unit ON, use the microprocessor keypad as follows:
Press
, press , press , press & finally .
Check pressures at suction and discharge ports for correct phase rotation.
If no differential pressure occurs, isolate immediately.
Measure and record the compressor amps once the compressors are fully loaded
and at the unloading stage.
Measure and record full speed amps of each condenser.
The microprocessor LP setting is adjustable via the microprocessor keypad,
factory set to 3.2BarG.
Check the liquid line sight glass is clear and dry.
Check the superheat setting adjusts the expansion valve to maintain a superheat
setting of 5 – 8°C at all operating loads.
Check and record the following:
Suction and discharge pressures
Liquid, discharge and suction line temperature
Ensure the above are all within the design parameters.
Repeat as follows for each circuit:
To switch the unit OFF, use the microprocessor keypad as follows:
Press
, press , press , press & finally .
To switch the unit ON, repeat above.
The unit is now commissioned and will provide many years of trouble free operation
providing the following maintenance schedule is followed.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Check power supply to the controller.
Check wire connections in accordance with
wiring diagram on control box lid.
Check all wires, connections, terminals etc.
Check isolator, fuses, MCBs, contactor and
control circuit wiring.
Low pressure cut-out operated (large or
complete loss of refrigerant charge).
Recover refrigerant, repair, evacuate and
recharge system.
Condenser fan thermal trip open circuit.
Seized compressor, possibly due to lack of
oil.
Replace compressor - investigate oil
trapping and general installation.
Defective compressor motor.
Check winding resistances - replace
compressor. If burnt out follow burn out
procedure using suction line burn-out drier.
Compressor thermal protection device
operated.
Check if compressor overheated - possibly
short of refrigerant
Expansion valve malfunction (abnormally
cold suction Iine).
Ensure feeler bulb is tight on suction and
superheat is correct (normally 5 to 6°C).
Replace power assembly or valve
as necessary.
Repair leaks if any, add oil if required but not
too much - Remember too much is as bad
as too little. Investigate pipe system and
trapping.
If no oil still, drain compressor and measure
in correct quantity.
Head Pressure too high/HP
cut-out operated
Condenser coil clogged or dirty.
Overcharge of refrigerant. Normally
troublesome in warm weather.
Remove excess refrigerant from system.
Air or other non-condensable gas in system.
Evacuate system and re-charge with new
refrigerant.
Head pressure controller faulty.
Check fan speed controller - if
faulty - replace.
Fan not operating or operating inefficiently.
Check motor - if faulty - replace.
Fan operating too fast in low
ambient conditions.
Check fan speed controller adjustment - if
faulty - replace.

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Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Low evaporator airflow (not Airedale Unit).
Check fan motors, belts and drives.
Flash gas (bubbles in sight glass) at
expansion valve.
Investigate for refrigerant leaks, repair and
re-charge system.
Clogged filter drier (pressure / temperature
drop across it).
Replace.
Obstruction in liquid line solenoid valve.
Inspect, clean or replace.
Obstruction in expansion valve.
Inspect, clean or replace.
Condenser fan not operating power on
Check power supply at circuit breaker.
Wiring to motors.
Check voltage at motor terminals.
Motor / fan assembly jammed.
Isolate unit and check free rotation of
motor/fan assembly. If faulty - replace.
Motor internal overheat protector tripped.
Carry out continuity check at terminals “TK”
in motor terminal box. If tripped and motor
hot - check bearings. If tripped and motor
cold - replace motor.
Faulty motor windings/capacitor.
Motor humming would indicate fault in motor
or capacitor. Check windings for continuity
and if OK replace capacitor.
Minimum speed set too low.
Adjust head pressure controller to suit.
Condenser fan runs too fast
High ambient condition or excessive recirculation of air around condenser coil.
Check installation against design.
Minimum set speed setting incorrect.
Incorrect pressure sensor setting.
Adjust via microprocessor.
Faulty Fan Speed Controller.
Replace controller and sensor (as they are
matched sets).
Condenser fans runs only
slowly
Incorrect pressure setting.
Adjust via microprocessor.
Replace controller and sensor (as they are
matched sets).
Check against wiring diagram - correct as
required.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
ALL work MUST be carried out by Technically Trained competent personnel.
The equipment contains live electrical and moving parts, ISOLATE prior to maintenance
or repair work.
The maintenance schedule indicates the time period between maintenance operations.
Check the following and compare results with
commissioning records.
Investigate and rectify variations.
Suction and discharge readings.
Remember to re-cap the Schraeder
connections!
Head pressure control is maintained.
Pressure relief indicator gauge.
Check each circuit sight glass for dryness and
bubbles for indication of leaks.
Check compressor oil level and
shell/sump temperature.
Visually inspect the unit for oil patches.
Investigate and repair possible leaks.
Check the following against the commissioning
records.
Investigate and adjust as necessary.
Alarm log for unusual occurrences.
Concurrently ensure chilled water pump and flow
switch operate efficiently, and that interlocks
function correctly.
Record operating conditions.
Visually inspect the unit for general wear and tear,
treat metalwork.
Rust should be inhibited, primed and
touched up with matching paint (available
from Airedale or your Distributor).
Visually inspect pipe and pipework insulation.
Repair/rectify as necessary.
Clean evaporator water strainer.
At first maintenance visit and then as
frequently as necessary (12 months).
Clean condenser coils. Do not steam clean use
detergent and stiff bristled brush. For heavy dirt, use
either a high pressure water or chemical hose.
Do not damage fins and comb out if
necessary.
Visually check the following:
Secure/tighten as necessary.
Pipework clamps are secure.
Tightness and condition of fan and
compressor mounts.
Anti-Vibration mounts fixings (if fitted).
Ensure control panel lids and access panels have
been correctly replaced and securely fastened
in position.

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
GENERAL MAINTENANCE (CONT.)
Repeat 3 month checks plus the following:
Check safety devices cut out the compressor at the
correct settings.
Leak test all R407C joints and inspect all
water connections.
Check superheats with system running on full load
(the height of summer is recommended). Recheck
the charge following major adjustment of
the superheats.
Adjust as necessary. A period of 30
minutes should be allowed between each
resetting of the valve to allow pressures
to stabilise. Thermostatic expansion valve
only.
Tighten all electrical terminals.
Periodic maintenance and inspection of this equipment is necessary to prevent premature
failure, the following periodic inspections should be carried out by period or hourly use
which ever is sooner.
Measure compressor motor insulation.
For periods of winter shut down the following precautions are recommended:
Close the liquid and discharge ball valve
Cap service ports
Turn off electrical circuits

Installation & Maintenance : 6259675 IM V1.4.0 10/2013
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.
For ease of identification when ordering spares or contacting Airedale about your unit,
please quote the unit type, unit serial number and the date of manufacture, which can
be found on the unit serial plate.
1 Discharge Line Ball Valve (optional)
2 Discharge non return valve (optional)
3 Discharge Thermostat Switch
4 HP Switch
5 Suction Pressure Transducer
6 Compressor Electrical Terminal Box
7 Oil Level Sight Glass
8 Oil Sump Draw Point
9 Suction Port
10 Sump Heater
11 Compressor Feet/Resilient Mounts
12 Liquid Line
13 Suction Line
14 Compressor Compartment
15 Refrigeration Pipework & Optional Refrigeration
components Compartment
16 Customer pipe connections Liquid
17 Customer pipe connections Suction
18 Mains Panel
19 Door Interlocking isolator
20 Emergency Stop
21 Condenser Coils
22 Incoming Customer Mains Access Points
23 Unit Controller Panel
24 Compressors MCBs
25 Modulating Head Pressure Controller
26 Fan Contactor MPCB
27 Compressor Contactors
28 Incoming Customer Mains 3 Phase
29 AireTronix Microprocessor Controller
30 Customer Permanent Supply/Controls Connections
The serial plate can be located inside Item 18.

Installation & Maintenance : 6259675 IM V1.4.0 10/2013

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013

Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Notes:

Head Office:
Airedale International Air Conditioning Ltd
Leeds Road
Rawdon
Leeds LS19 6JY
United Kingdom