Airedale SmartCool 11-233kW User Manual

SmartCool™

Downflow – Precision Air Conditioning

R410A

Installation, Maintenance and

Commissioning

SmartCoolTM - D Precision Air Conditioning

About Airedale Products & Customer Services

Warranty

Warranty is only valid in the event that

CAUTION

Spares

Training

Customer Services

Legal Notices

All AIAC products or parts (non consumable) supplied for installation within the UK mainland and commissioned by an AIAC engineer, carry a full Parts & Labour warranty for a period of 12 months from the date of commissioning or 18 months from the date of despatch, whichever is the sooner.

Parts or Equipment supplied by AIAC for installation within the UK or for Export that are properly commissioned in accordance with AIAC standards and specification, not commissioned by an AIAC engineer; carry a 12 month warranty on non consumable Parts only from the date of commissioning or 18 months from the date of despatch, whichever is the sooner.

Parts or equipment installed or commissioned not to acceptable AIAC standards or specification invalidate all warranty.

In the period between delivery and commissioning the equipment: is properly protected & serviced as per the AIAC installation & maintenance manual provided where applicable the glycol content is maintained to the correct level.

In the event of a problem being reported and once warranty is confirmed as valid under the given installation and operating conditions, the Company will provide the appropriate warranty coverage (as detailed above) attributable to the rectification of any affected Airedale equipment supplied (excluding costs for any specialist access or lifting equipment that must be ordered by the customer).

Any spare part supplied by Airedale under warranty shall be warranted for the unexpired period of the warranty or 3 months from delivery, whichever period is the longer.

To be read in conjunction with the Airedale Conditions of Sale - Warranty and Warranty Procedure, available upon request.

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 further assistance, please e-mail: [e-mail] or telephone:

UK Sales Enquiries	+ 44 (0) 113 239 1000	[e-mail]
International Enquiries	+ 44 (0) 113 239 1000	[e-mail]
Spares Hot Line	+ 44 (0) 113 238 7878	[e-mail]
Airedale Service	+ 44 (0) 113 239 1000	[e-mail]
Technical Support	+ 44 (0) 113 239 1000	[e-mail]
Training Enquiries	+ 44 (0) 113 239 1000	[e-mail]

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.

Cover image is the SC25D100-X2X2-0; Controller display is for illustration only.

ã 2013 Airedale International Air Conditioning Limited. All rights reserved. Printed in the UK.

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About Airedale Products & Customer Services......................................................................	2
Warranty.................................................................................................................................	2
Spares....................................................................................................................................	2
Training ..................................................................................................................................	2
Health and Safety.......................................................................................................................	6
Specifier’s Guide Indoor Unit ...................................................................................................	7
Nomenclature.........................................................................................................................	7
Introduction ............................................................................................................................	8
System Configurations..............................................................................................................	9
Dual Circuit.............................................................................................................................	9
Dual Cool .............................................................................................................................	10
Chilled Water........................................................................................................................	11
Installation Data .......................................................................................................................	12
Dimensions ..........................................................................................................................	12
Positioning............................................................................................................................	13
Minimum Unit Clearance......................................................................................................	13
Electrical Services Incoming Cable ......................................................................................	14
Incoming Mains Gland Plate ................................................................................................	14
Weights ................................................................................................................................	15
Refrigerant Pipe Sizing Guide ..............................................................................................	18
Refrigerant Charging Guide .................................................................................................	19
Packaged Unit Pre-Charged Refrigerant Volumes...............................................................	21
Design Data – Water Cooled & Free Cooling.......................................................................	22
System Pressure Strength Test ...........................................................................................	23
System Leak Test ................................................................................................................	23
Evacuation ...........................................................................................................................	24
Refrigerant Handling ............................................................................................................	25
Oil Charging Guide...............................................................................................................	26
Pressure switch settings.......................................................................................................	26
Compressor Oil Information .................................................................................................	27
Chilled Water System...........................................................................................................	29
Humidification.......................................................................................................................	29
Condensate Drain Pipework.................................................................................................	32
Fitting Instructions ................................................................................................................	33
Pipe Clips.............................................................................................................................	33
Condensate Drain Priming ...................................................................................................	33
Checking for Leaks ..............................................................................................................	33
Condensate Pump Operation...............................................................................................	33
Fan Speeds..........................................................................................................................	35
Pipework Schematics..............................................................................................................	47
X2X2 ....................................................................................................................................	48
X2C0 ....................................................................................................................................	49
W2W2 ..................................................................................................................................	50
W2C0 ...................................................................................................................................	51
W2F0....................................................................................................................................	52
C000.....................................................................................................................................	53
C0C0....................................................................................................................................	54
Controls ....................................................................................................................................	55
PCO3 CONTROLLER..........................................................................................................	55
DISPLAY KEYPAD CONNECTIONS ...................................................................................	56
Addressing the Display Keypad ...........................................................................................	57
Use Of Extra Functions Buttons ...........................................................................................	59
Navigation ............................................................................................................................	59
EVD EVO Driver Setup ........................................................................................................	60
Removable Plug and Play Display .......................................................................................	60
Driver Initialization (Driver Reset Function)..........................................................................	61

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		Input / Outputs......................................................................................................................		63
	Technical Data..........................................................................................................................			64
	System Operating Limits.........................................................................................................			64
	Air Cooled Models (X2X2) .......................................................................................................			65
		Performance Data – Air Cooled Models ...............................................................................		65
		Mechanical DataX2X2........................................................................................................		67
		Electrical Data – X2X2..........................................................................................................		70
		Sound Data – X2X2..............................................................................................................		73
		Interconnecting Wiring –X2X2 ..............................................................................................		74
	Air Cooled and Chilled Water Models (X2C0) ........................................................................			76
		Performance Data – Air Cooled & Chilled Water Models .....................................................		76
		Mechanical Data –X2C0.......................................................................................................		78
		Electrical Data –X2C0 ..........................................................................................................		84
		Sound Data – X2C0..............................................................................................................		90
		Waterside pressure drops – X2C0 .......................................................................................		91
		Interconnecting Wiring – X2C0.............................................................................................		92
	Water Cooled Models (W2W2).................................................................................................			94
		Performance Data – Water Cooled Models ..........................................................................		94
		Mechanical Data – W2W2....................................................................................................		95
		Electrical Data – W2W2........................................................................................................		98
		Sound Data - Water Cooled Models...................................................................................		101
		Waterside pressure drop - W2W2 ......................................................................................		102
		Interconnecting Wiring – W2W2 .........................................................................................		103
	Water Cooled and Chilled Water models (W2C0)................................................................			105
		Performance Data –Water Cooled & Chilled Water Models ...............................................		105
		Mechanical Data – W2C0...................................................................................................		107
		Electrical DataW2C0 ........................................................................................................		113
		Sound Data – W2C0...........................................................................................................		119
		Waterside Pressure Drops W2C0 ......................................................................................		120
		Interconnecting Wiring – W2C0..........................................................................................		122
	Water Cooled and Free Cooling (W2F0)...............................................................................			124
		Performance Data – Water Cooled & Free Cooling............................................................		124
		Mechanical Data – W2F0 ...................................................................................................		126
		Electrical Data – W2F0.......................................................................................................		132
		Sound Data – W2F0...........................................................................................................		138
		Waterside Pressure Drops W2F0.......................................................................................		139
		Interconnecting Wiring – W2F0 ..........................................................................................		141
	Chilled Water Single Circuit (C000) ......................................................................................			143
		Performance Data – Chilled Water – Single Circuit............................................................		143
		Mechanical Data – C000 ....................................................................................................		144
		Electrical Data - C000.........................................................................................................		147
		Sound Data – C000............................................................................................................		149
		Waterside Pressure Drop C000..........................................................................................		150
		Interconnecting Wiring – C000 ...........................................................................................		151
	Chilled Water Dual Circuit (C0C0).........................................................................................			152
		Performance Data – Chilled Water – Dual Circuit ..............................................................		152
		Mechanical Data – C0C0....................................................................................................		153
		Electrical Data - C0C0........................................................................................................		156
		Sound DataC0C0 .............................................................................................................		158
		Waterside pressure drop - C0C0........................................................................................		159
		Interconnecting Wiring – C0C0...........................................................................................		160
	Commissioning Data .............................................................................................................			161
		Humidifier ...........................................................................................................................		162
		Head Pressure Control.......................................................................................................		164
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Electronically Commutated (EC) Fan Motor.......................................................................	165
EC Fan interrogation ..........................................................................................................	165
Suction Throttle Valve ........................................................................................................	166
Hot Gas Re-Heat (HGRH)..................................................................................................	166
Commissioning procedure ...................................................................................................	167
Commissioning Checklist ...................................................................................................	167
Pre Commissioning checks................................................................................................	167
Fan Section ........................................................................................................................	168
Chiller /Glycol units ............................................................................................................	169
Heating...............................................................................................................................	169
Humidification.....................................................................................................................	170
Condenser..........................................................................................................................	170
Water cooled condenser ....................................................................................................	170
Refrigeration circuit ............................................................................................................	171
Indoor unit optional extras..................................................................................................	173
Controls..............................................................................................................................	174
Maintenance ...........................................................................................................................	175
Filter Changing...................................................................................................................	175
3 Monthly............................................................................................................................	176
6 Monthly............................................................................................................................	176
12 Monthly..........................................................................................................................	176
Humidifier Bottle Change ...................................................................................................	177
Evaporator Fan removal.....................................................................................................	178
Troubleshooting Indoor Unit.................................................................................................	179
Suction throttle valve (STV)................................................................................................	181
Hot Gas Re-heat (HGRH) ..................................................................................................	181
Humidifier...........................................................................................................................	181
Unit Alarms:........................................................................................................................	182
Specifier’s Guide Outdoor unit.............................................................................................	190
Unit Identification................................................................................................................	190
Standard Features .............................................................................................................	191
Optional Extras - Energy Saving ........................................................................................	193
Installation data......................................................................................................................	194
Dimensions / Weights / Positioning ....................................................................................	194
Unit Lifting ..........................................................................................................................	199
Re-orientation to Vertical Discharge...................................................................................	200
Positioning..........................................................................................................................	201
Siting Recommendations ...................................................................................................	201
Pipework Connections........................................................................................................	201
Holding Charge ..................................................................................................................	201
Pipework Installation - Good Practices...............................................................................	201
Performance Data – Condensers.......................................................................................	202
Performance Data – Dry Coolers .......................................................................................	204
Sound Data ........................................................................................................................	206
Mechanical Data – Condensers and Dry Coolers ..............................................................	208
Dry Cooler Waterside Pressure Drop.................................................................................	212
Electrical Data ....................................................................................................................	213
Interconnecting Wiring........................................................................................................	213
Troubleshooting.....................................................................................................................	214
Unmatched Outdoor Units..................................................................................................	214
Airedale Matched Outdoor Units ........................................................................................	215
Maintenance ...........................................................................................................................	216

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General

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.
CAUTION	1 Installation, service and maintenance of Airedale equipment should only be
	carried out by technically trained competent personnel.
CAUTION	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 The refrigerant used in this range of products is classified under the COSHH
	regulations as an irritant, with set Workplace Exposure Levels (WEL) 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.
Protective personal	Airedale recommends that personal protective equipment is used whilst installing,
equipment	maintaining and commissioning equipment.
Refrigerant Warning	The Airedale SmartCool uses R410A refrigerant which is a high pressure refrigerant. It
	requires careful attention to proper storage and handling procedures.
	Use on 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.
	The refrigerant must be stored in a clean, dry area away from sunlight. The refrigerant
	must never be stored above 50°C.
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.
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.

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SmartCoolTM – D

Specifier’s Guide Indoor Unit

Nomenclature

International Example è

SC19D065 - C000 -0

SC

19

D

065

-

C

0

0

0

-

0

Dual Cool Example è

SC31D065 - X2C0 -0

SC

31

D

065

-

X

2

C

0

-

0

Mono Cool Example è

SC25D100 - X2X2 -0

SC

25

D

100

-

X

2

X

2

-

0

SmartCool

SC

Decimetre Case Width (dm)

19 - 31

Upflow

U

Downflow

D

Nominal Capacity (kW)

033-150

Separator

-

a l )

Air Cooled (Comp Indoor)

X

Water Cooled (Comp Indoor)

W

D u it 1

Chilled Water

C

o uc

No Compressor

0

/

o n C ir

Single Compressor

1

M

Tandem Compressor

2

(

Inverter Compressor

V

No Option

0

a l )

Air Cooled (Comp Indoor)

X

Water Cooled (Comp Indoor)

W

D u it 2

Free Cooling

F

o cu

Chilled Water

C

/

on Cir

No Compressor

0

(

Single Compressor

1

M

Tandem Compressor

2

Inverter Compressor

V

Seperator

-

e

400V 3PH 50Hz

0

V o lt a g

Note

Dual Cool units are defined as those having 2 different cooling mediums (i.e. R410A and Chilled Water [X2C0]).

Dual Circuit units are defined as those having 2 independent cooling circuits (i.e. X2X2 or C0C0).

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G ene

Introduction	Designed to provide environmental precision air conditioning for applications such as
	telecommunication facilities, data centers, computer rooms, clean rooms and
	laboratories.
		Description	Capacity kW (1)
	X2X2	Dual circuit direct expansion air cooled	55 -122
	X2C0	Dual cool direct expansion air cooled and	(X2) 30 – 82.5
		chilled water	(C0) 50 - 102
	W2W2	Dual circuit direct expansion water cooled	54 -123
	W2C0	Dual cool direct expansion water cooled and	(W2) 30 - 85
		chilled water	(C0) 50 - 102
	W2F0	Dual cool water cooled and glycol free cooling	(W2) 30 - 86
			(F0) 50 - 102
	C000	Single circuit chilled water	69 -149
	C0C0	Dual circuit chilled water	20 -102

(1) Based on nominal unit capacities

Full function units provide full control of temperature, humidity and filtration.

The modular design of the SmartCool allows grouping of differing model types and capacities to be installed side by side. The flexibility of this type of installation provides for multi-circuit functionality.

A full range of air cooled condensers is available with the direct expansion indoor units to provide a matched system with optional performance upgrade, refer to Outdoor Unit

A full range of Dry coolers is available to complement the free cooling indoor units. Dry coolers are a cost effective and safe solution against legionella.

Also available is a full range of Airedale water chillers to complement the chilled water indoor units.

The range has been designed and optimised for operation with ozone benign refrigerant

R410A.

CE Directive	Airedale certify that the equipment detailed in this manual conforms with the following
	EC Directives:
	Electromagnetic Compatibility Directive (EMC)	2004/108/EC
	Low Voltage Directive (LVD)	2006/95/EC
	Machinery Directive (MD)	89/392/EEC in the version
		2006/427/EC
	Pressure Equipment Directive (PED)	97/23/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.

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SmartCoolTM – D

System Configurations

Dual Circuit

X2X2

The SmartCool X2X2 is an air cooled, direct expansion (DX), double circuit system linked to two separate, remotely mounted air cooled condensers.

Optimised for heat transfer using energy efficient refrigerant R410A in each circuit, the X2X2 system is located within the conditioned space, absorbing room heat and transferring it outside to the condensers.

By using one or more same/dissimilar sized scroll compressors across the X2X2 double circuit, part load efficiency can be maximised and capacity more precisely matched to application.

W2W2

Suitable for applications favouring reduced refrigerant charges, the SmartCool W2W2 is a double circuit system featuring, DX cooling within the case and dry coolers outside.

Warm room air is passed through two completely independent evaporator coils and an integral plate condenser transfers the heat load to the glycol solution which is then channelled outside to two air cooled dry coolers.

General

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SmartCoolTM - D

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G ene

Dual Cool

X2C0

For redundancy in critical applications, the SmartCool dual cool X2C0 offers two different cooling mediums, air cooled DX and chilled water, within the same case.

The X2C0 system is managed by the Airetronix microprocessor to select which medium acts as the primary source of cooling or which acts as back-up, should the primary source fail or is unable to cope with the heat load.

W2C0

For applications where a water cooled system is preferred over air cooled, the SmartCool W2C0 comprises two different cooling mediums within the same case: DX water cooled, as in the W2W2 system, and chilled water, as in the C000 system.

The Airetronix microprocessor elects which medium acts as the primary source of cooling and which as back-up, if the primary source fails or is unable to cope with the heat load.

W2F0

The W2F0 system includes a free-cooling coil in conjunction with the evaporator. In low ambient conditions, particularly in relation to the high temperatures and continuous system operation of a server environment, the W2F0 system will run with minimum energy. At times of higher ambient, sophisticated Airetronix controls technology will modulate the 3-way water regulating valves to transition from free cooling back to mechanical cooling.

Typically the SmartCool W2F0 single circuit freecooling system uses 46%* less energy than a standard air cooled DX system.

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Chilled Water

C000

Where a chilled water single circuit system is preferred, warm room air is blown across the efficient cooling coils of the SmartCool C000 and the heat transferred to a chilled water system such as Airedale’s high efficiency TurboChill.

By controlling the 3-way water regulating valve, the intelligent Airetronix microprocessor can achieve precise control of temperature and humidity.

SmartCoolTM – D

General

C0C0

In the SmartCool C0C0 unit, the cooling coils are split into two independent systems, each with a 3-way water regulating valve, and cooled by chilled water from two separate chillers.

For extra security, the dual circuit configuration of

SmartCool C0C0 offers 2N redundancy.

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Installation Data

Dimensions

Standard Airflow Configuration (mm)

Installation

		H x D x W
SC19D	mm	1980 x 890 x 1985
SC25D	mm	1980 x 890 x 2549
SC31D	mm	1980 x 890 x 3113

(1)Forward or reversed air discharge available as standard on all products. Does not require configuring.

(2)Area denotes services entry location. For specific details please contact Airedale.

(3)Open base. Shaded area denotes air discharge.

(4)M6 fixing holes positions for mounting ceiling duct extensions or plenums.

Packed Dimensions	For specific markets units shall be shipped, mounted on wooden pallet and covered with
	polythene. The pallet shall be mechanically fixed to the unit for transportation only
	(Please contact Airedale for this option)

X = 160mm

Y = 50mm

Z = 50mm

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Positioning

(D)

(2)

(1)

Minimum Unit Clearance

Open & Enclosed Floorstand Option

					A			B		C - Floorstand(3)
SC19D		mm		1985			800			Min 200 – Max 750
SC25D		mm			2549			800		(+ 50mm Feet Adjustable +/-
										20mm) (4)
SC31D		mm		3113			800

Minimum Ceiling Clearance- (D)

		Forward Only		Forward and 1 Side	Forward and 2 Sides	All Faces
SC19D	mm	720		500	380	250
SC25D	mm	740		550	440	280
SC31D	mm	750		590	480	300

Notes

(1)Shown with optional open floor stand.

(2)Shaded area indicates minimum service and maintenance requirements. The unit must be installed with allowance for carpet tile clearance.

(3)Dimension C denotes recommended minimum/maximum floor stand height, refer to Airedale for special applications, please specify at order.

(4)Min = Threaded foot at minimum extension (additional to “C” dimension). Max = Threaded foot at maximum extension (additional to “C” dimension).

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Electrical Services Incoming Cable

Service connections to the smartcool unit are from the left hand side. Provision must be made when sizing cable lengths.

Installation

Mains Electrical Incoming Isolator Termination

Electrical Services Entry Option 2

Mechanical Services Entry + Electrical Option 1

The Floorstand provided by Airedale however has provision for cable entry via the right hand side should it be required, adjacent to the condensate drain.

Option 1

Option 2

Electrical services through floor stand (Next to condensate drain)

Incoming Mains Gland Plate

					4 hole centres are punched in the gland plate for
					location of cable glands. The plate is removable for
					drilling to required size.
	1	2	3	4	Holes1 and 2 for interconnecting wiring to Outdoor unit.
					Holes 3 and 4 for Mains incoming Supply A and B

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Weights
			Unit			Shipped Weight (kg)			Installed Weight (kg)
													s
													nI
			SC19D055-X2X2-0			900		900
	X2X2		SC19D070-X2X2-0			900		910
			SC19D080-X2X2-0			900		910
			SC25D080-X2X2-0			1020			1020
			SC25D090-X2X2-0			1110			1120
			SC25D100-X2X2-0			1130			1130
			SC31D100-X2X2-0			1280		1290
			SC31D120-X2X2-0			1300		1310
			SC31D130-X2X2-0			1300		1310
			Unit			Shipped Weight (kg)			Installed Weight (kg)
			SC19D033-X2C0-0			820		860
			SC19D038-X2C0-0			820		860
			SC19D045-X2C0-0			820		860
			SC19D064-X2C0-0			890		920
			SC19D070-X2C0-0			900		930
	X2C0		SC19D076-X2C0-0			900		930
			SC25D045-X2C0-0			940		980
			SC25D050-X2C0-0			990		1030
			SC25D055-X2C0-0			1000		1040
			SC25D067-X2C0-0			1010		1050
			SC25D073-X2C0-0			1010		1060
			SC25D080-X2C0-0			1020		1060
			SC31D055-X2C0-0			1150		1200
			SC31D065-X2C0-0			1150		1210
			SC31D075-X2C0-0			1160		1210
			SC31D077-X2C0-0			1170		1220
			SC31D080-X2C0-0			1170		1220
			SC31D083-X2C0-0			1170		1220

Note

(1)Shipped weights

(2)Installed weight includes refrigerant charges/ internal water volume.

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	SmartCoolTM - D						Precision Air Conditioning
	Weights
				Unit			Shipped Weight (kg)			Installed Weight (kg)
Installation		W2W2
				SC19D055-W2W2-0		940			940
				SC19D070-W2W2-0		970			980
				SC19D080-W2W2-0		970			980
				SC25D080-W2W2-0			1090			1110
				SC25D090-W2W2-0			1220			1230
				SC25D100-W2W2-0			1230			1250
				SC31D100-W2W2-0		1390			1400
				SC31D120-W2W2-0		1400			1410
				SC31D130-W2W2-0		1400			1420
				Unit			Shipped Weight (kg)			Installed Weight (kg)
				SC19D033-W2C0-0		850			880
				SC19D038-W2C0-0		860			890
				SC19D045-W2C0-0		860			890
				SC19D064-W2C0-0			950			980
				SC19D070-W2C0-0			950			980
		W2C0		SC19D076-W2C0-0			960			990
				SC25D045-W2C0-0		980			1020
				SC25D050-W2C0-0		1050			1090
				SC25D055-W2C0-0		1050			1100
				SC25D067-W2C0-0			1070			1110
				SC25D073-W2C0-0			1070			1120
				SC25D080-W2C0-0			1080			1120
				SC31D055-W2C0-0		1210			1260
				SC31D065-W2C0-0		1220			1270
				SC31D075-W2C0-0		1220			1270
				SC31D077-W2C0-0			1230			1280
				SC31D080-W2C0-0			1230			1280
				SC31D083-W2C0-0			1230			1290

Note

(1)Shipped weights

(2)Installed weight includes refrigerant charges/ internal water volume.

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Precision Air Conditioning							SmartCoolTM – D
Weights
			Unit		Shipped Weight (kg)		Installed Weight (kg)
			SC19D033-W2F0-0		850		880				nI s
			SC19D038-W2F0-0		860		890
			SC19D045-W2F0-0		860		890
			SC19D064-W2F0-0		950		980
			SC19D070-W2F0-0		950		980
	W2F0		SC19D076-W2F0-0		960		990
			SC25D045-W2F0-0		980		1020
			SC25D050-W2F0-0		1050		1090
			SC25D055-W2F0-0		1050		1100
			SC25D067-W2F0-0		1070		1110
			SC25D073-W2F0-0		1070		1120
			SC25D080-W2F0-0		1080		1120
			SC31D055-W2F0-0		1210		1260
			SC31D065-W2F0-0		1220		1270
			SC31D075-W2F0-0		1220		1270
			SC31D077-W2F0-0		1230		1280
			SC31D080-W2F0-0		1230		1280
			SC31D083-W2F0-0		1230		1290
			Unit		Shipped Weight (kg)		Installed Weight (kg)
			SC19D065-C000-0		725		780
	C000		SC19D075-C000-0		725		780
			SC19D090-C000-0		730		780
			SC25D090-C000-0		840		920
			SC25D100-C000-0		840		920
			SC25D110-C000-0		840		920
			SC31D110-C000-0		1000		1080
			SC31D130-C000-0		1000		1080
			SC31D150-C000-0		1000		1080
			Unit		Shipped Weight (kg)		Installed Weight (kg)
			SC19D033-C0C0-0		730		790
	C0C0		SC19D038-C0C0-0		730		790
			SC19D045-C0C0-0		730		790
			SC25D045-C0C0-0		850		930
			SC25D050-C0C0-0		850		930
			SC25D055-C0C0-0		850		930
			SC31D055-C0C0-0		1010		1100
			SC31D065-C0C0-0		1010		1100
			SC31D075-C0C0-0		1010		1100
	Note

(1)Shipped weights

(2)Installed weight includes refrigerant charges/ internal water volumes.

	Precision Air Conditioning	17
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SmartCoolTM - D

Precision Air Conditioning

Refrigerant Pipe Sizing Guide

The refrigerant pipe sizing information below is for a guide only. Pipe sizes based on 100% load.

Equivalent Pipe Lengths with R410A

Installation

Indoor

Outdoor

Indoor Unit

Unit

Unit

Connection Size

0-15m

Discharge

15-40m

Discharge

Liquid

Horizontal

Vertical

Liquid

Horizontal

Vertical

Liquid

Disch

(3)

(1)

(2)

(3)

(1)

(2)

SC19D055-X2X2-0

CR50

1/2"

7/8"

5/8"

7/8"

3/4"

5/8"

7/8"

7/8"

SC19D070-X2X2-0

CR65

5/8"

7/8"

5/8"

7/8"

7/8"

5/8"

7/8"

7/8"

SC19D080-X2X2-0

CR65

5/8"

7/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC25D080-X2X2-0

CR65

5/8"

7/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC25D090-X2X2-0

CR65

7/8"

1 1/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC25D100-X2X2-0

CR80

7/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC31D100-X2X2-0

CR80

7/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC31D120-X2X2-0

CR105

7/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC31D130-X2X2-0

CR105

7/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

7/8"

1 1/8"

1 1/8"

SC19D033-X2C0-0

CR50

1/2"

7/8"

5/8"

7/8"

3/4"

5/8"

7/8"

7/8"

SC19D038-X2C0-0

CR65

5/8"

7/8"

5/8"

7/8"

7/8"

5/8"

7/8"

7/8"

SC19D045-X2C0-0

CR65

5/8"

7/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC19D064-X2C0-0

CR105

5/8"

7/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC19D070-X2C0-0

CR105

7/8"

1 1/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC19D076-X2C0-0

CR105

7/8"

1 1/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC25D045-X2C0-0

CR65

7/8"

1 1/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC25D050-X2C0-0

CR65

7/8"

1 1/8"

5/8"

7/8"

7/8"

3/4"

7/8"

7/8"

SC25D055-X2C0-0

CR80

7/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC25D067-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC25D073-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC25D080-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC31D055-X2C0-0

CR80

7/8"

1 3/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC31D065-X2C0-0

CR105

7/8"

1 3/8"

3/4"

1 1/8"

1 1/8"

3/4"

1 1/8"

1 1/8"

SC31D075-X2C0-0

CR105

7/8"

1 3/8"

3/4"

1 1/8"

1 1/8"

7/8"

1 1/8"

1 1/8"

SC31D077-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC31D080-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

SC31D083-X2C0-0

CR105

7/8"

1 3/8"

3/4”

1 1/8”

1 1/8”

7/8”

1 3/8”

1 1/8”

(1)For interconnecting pipework with a predominantly horizontal layout.

(2)For interconnecting pipework with a predominantly vertical layout.

(3)Careful pipework selection must be done if the liquid line rises. Additional system sub cooling may be required to overcome friction losses.

IMPORTANT	Tandem Compressor and suction throttle valve applications:
	In part load, gas velocity should be taken into account when selecting and commissioning
	pipework to ensure full oil return.

REMEMBER excessive pressure loss in interconnecting pipework will impair system performance; this should be factored in during the design of the system and where necessary oil separators employed.

Excessive pressure drop in liquid lines can cause poor refrigerant distribution to expansion devices and can cause malfunction of the system (especially with condensers lower than the evaporator)

Oil Traps	For long vertical rises in both liquid and discharge lines, it is essential that oil traps are
	located every 4m to ensure proper oil movement / entrapment. In addition there should be
	an oil trap at the exit of the air handling unit before a vertical riser is applied (refer to
	example below).

Pipe Supports	The following table identifies the maximum
	distance between pipe supports on vertical
	and horizontal pipe runs.

Pipe O/D (inches)	Support distance (m)
3/8 - 7/8	1.0
1 1/8 - 2 1/8	2.0

CAUTION	All pipework should be clamped prior to insulation being applied. Clamping over
	insulation is not acceptable.
Horizontal Sections	It is good practice to ensure a slight gradient toward the compressor in the direction of the
	refrigerant flow for suction lines running horizontal. This assists oil return to the
	compressor. A gradient of approximately 1:200 (0.5%) shall be used.

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Precision Air Conditioning				SmartCoolTM – D
Liquid Line			If the system is configured with the SmartCool higher than the condenser unit h it may
			be required to increase the degree of sub cooling to prevent flashing gas. This flashing is
			caused by excess pressure drop caused by the static head of refrigerant and can cause
			poor operation of the evaporator and metering device.
			Careful pipe sizing is recommended to ensure that the liquid does not form gas due to
			excess pressure drop
			Increasing the liquid line size minimizes pipe friction and flashing due to friction pressure
			drop.
			However as a fail safe it is recommended that the condenser is installed below the
			indoor unit to allow for correct liquid drain.
Pipe Insulation			The liquid line of the system must be insulated if passing through extremely warm places
			(Boiler houses etc). Ensuring that the refrigerant does not become flash gas.
Condenser above Air Handling Unit				Condenser below Air Handling Unit

nI s

Warning: May have flash gas occurring in liquid line if riser friction losses are excessive.

Discharge Line

Liquid

Diagrams above for illustration only

Refrigerant Charging Guide

The following information can be used to estimate the refrigerant quantity required in a typical split system installation.

Unit Refrigerant Charge The following table shows the refrigerant charge / circuit for the indoor and outdoor units.

(kg/Circuit)

Indoor Unit		HGRH(1)	Standard Condenser		Larger Condenser
(Indoor Unit)	kg/Circuit	kg/Circuit	(Outdoor Unit)	kg/Circuit	(Outdoor Unit)	kg/Circuit
SC19D055-X2X2	4.41	4.56	CR50	4.9	CR65	9.78
SC19D070-X2X2	4.66	4.81	CR65	9.78	CR80	8.37
SC19D080-X2X2	4.66	4.81	CR65	9.78	CR80	8.37
SC25D080-X2X2	5.84	6.04	CR65	9.78	CR80	8.37
SC25D090-X2X2	6.37	6.60	CR65	9.78	CR80	8.37
SC25D100-X2X2	6.38	6.60	CR80	8.37	CR105	16.72
SC31D100-X2X2	7.56	7.83	CR80	8.37	CR105	16.72
SC31D120-X2X2	7.57	7.83	CR105	16.72	CR130	22.05
SC31D130-X2X2	7.67	7.94	CR105	16.72	CR130	22.05
SC19D033-X2C0	4.34	4.49	CR50	4.9	CR65	9.78
SC19D038-X2C0	4.59	4.74	CR65	9.78	CR80	8.37
SC19D045-X2C0	4.59	4.74	CR65	9.78	CR80	8.37
SC19D064-X2C0	5.13	5.33	CR105	16.72	CR130	22.05
SC19D070-X2C0	5.13	5.34	CR105	16.72	CR130	22.05
SC19D076-X2C0	5.14	5.34	CR105	16.72	CR130	22.05
SC25D045-X2C0	5.77	5.97	CR65	9.78	CR80	8.37
SC25D050-X2C0	6.31	6.53	CR65	8.37	CR80	8.37
SC25D055-X2C0	6.31	6.53	CR80	8.37	CR105	16.72
SC25D067-X2C0	6.31	6.56	CR105	16.72	CR130	22.05
SC25D073-X2C0	6.32	6.57	CR105	16.72	CR130	22.05
SC25D080-X2C0	6.32	6.57	CR105	16.72	CR130	22.05
SC31D055-X2C0	7.49	7.75	CR80	8.37	CR105	16.72
SC31D065-X2C0	7.49	7.76	CR105	16.72	CR130	22.05
SC31D075-X2C0	7.49	7.76	CR105	16.72	CR130	22.05
SC31D077-X2C0	7.50	7.79	CR105	16.72	CR130	22.05
SC31D080-X2C0	7.50	7.79	CR105	16.72	CR130	22.05
SC31D083-X2C0	7.50	7.79	CR105	16.72	CR130	22.05

(1)Fitted with optional hot gas re-heat

	Precision Air Conditioning	19
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Installation

SmartCoolTM - D		Precision Air Conditioning
Liquid Line Refrigerant	The following table shows the refrigerant charge / metre for the liquid line, using R410A
Charge (kg/m)	and assuming a liquid line temperature of 40°C.
	Liquid Line (m)	kg/m
	3/8”	0.05
	1/2”	0.09
	5/8”	0.15
	3/4”	0.21
	7/8”	0.30
	1 1/8”	0.53

IMPORTANT

Calculation of Liquid Line

Refrigerant Charge (kg)

The pipe sizes/refrigerant charges quoted are for guidance only. It is the responsibility of the installing contractor/site engineer to check the pipe sizes/refrigerant charges are correct for each system installation and application. Excess pressure drop on a system may require additional refrigerant charges to ensure correct unit operation.

Split systems may require additional oil which should be added to the low side of each compressor.

Design should be in accordance with accepted refrigeration practice to ensure good oil return to the compressor(s) under all normal operating conditions.

The liquid line refrigerant charge can be calculated using the following equation:

LR = L x m	Where:
	LR	= Total Liquid Line Refrigerant charge (kg)
	L	=	Length of Interconnecting pipework (metres)
	m	=	Liquid Line Refrigerant charge / metre. Refer to
			Liquid Line Refrigerant

Charge (kg/m), above.

	Calculation of System	The system refrigerant charge can be calculated using the following equation:
	Refrigerant Charge (kg)		Where:
		SR = LR + IR + OR
			SR	= Total System Refrigerant charge (kg)
			LR	= Total Liquid Line Refrigerant charge. (As calculated from above)
			IR	= Indoor Unit Refrigerant Charge.
			OR	= Outdoor Unit Refrigerant Charge.

Example	Indoor Unit Model Ref.	= SC19D055-X2X2-0
	Outdoor Unit Model Ref.	= CR50 Condenser
	Interconnecting Pipework	= 10 metres

Selecting The Liquid Line Size From the Refrigerant Pipe Sizing Guide, the liquid line size given for pipework length of 10 metres is:

Liquid Line Size

= 5/8”

Liquid Line Refrigerant	LR = L x m
Charge
	LR = 10 x 0.15
System Refrigerant Charge
	SR = LR + IR + OR

Where:

L	= 10 metres
m	= 0.15 kg/m
Liquid Line Charge = 1.5 kg
Where:
LR	= 1.5 kg. (As calculated from above)
IR	= 4.41 kg
OR	= 4.9 kg

SR = 1.5 + 5.57 + 4.9 System Refrigerant Charge = 10.81kg / Circuit

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Precision Air Conditioning		SmartCoolTM – D
Liquid Sub Cooling	The degree of liquid sub cooling required to prevent flashing of liquid refrigerant can be calculated by
	the following method.

Given the following as an example:

∙Refrigerant R410A

∙Condensing temperature (54.4°C)

∙Liquid lift 20m

∙Piping friction loss 0.21 bar

∙Losses through valves and fittings 0.5 Bar

1.Determine the pressure drop due to pipe friction = 0.21 Bar

2.Pressure drop due to valves and fittings = 0.5 Bar

3.Pressure loss due to liquid lift = height x 0.115 = 20 x 0.115 = 2.3 bar

Note:- At normal liquid temperatures the static pressure loss due to elevation at the top of a liquid lift 0.115 bar/m

Therefore:- Total pressure loss in liquid line = 3.01bar

Condensing pressure @ Condensing temperature (54.4°C) = 34 Bar

Total pressure loss in liquid line = 3.01 Bar

Nett pressure at Expansion valve = 34 - 3.01 = 30.99 bar

Saturation temperature at the Nett pressure at expansion valve (30.99 bar) = 52°C (from Refrigerant tables)

Sub cooling required

=Condensing temperature — Saturation temperature at the Nett pressure at expansion valve

=54.4 - 52 = 2.4 °C

Therefore liquid sub cooling required to prevent liquid flashing = 2.4 °C

Packaged Unit Pre-Charged Refrigerant Volumes

Indoor unit	kg / circuit	HGRH kg / circuit
SC19D055-W2W2	5.75	5.90
SC19D070-W2W2	7.32	7.47
SC19D080-W2W2	7.32	7.47
SC25D080-W2W2	8.51	8.70
SC25D090-W2W2	10.85	11.07
SC25D100-W2W2	10.85	11.07
SC31D100-W2W2	12.04	12.30
SC31D120-W2W2	12.04	12.30
SC31D130-W2W2	12.04	12.31
SC19D033-W2C0	5.68	5.83
SC19D038-W2C0	7.25	7.40
SC19D045-W2C0	7.25	7.40
SC19D064-W2C0	9.60	9.81
SC19D070-W2C0	9.61	9.81
SC19D076-W2C0	9.61	9.82
SC25D045-W2C0	8.44	8.63
SC25D050-W2C0	10.78	11.00
SC25D055-W2C0	10.78	11.00
SC25D067-W2C0	10.79	11.04
SC25D073-W2C0	10.79	11.04
SC25D080-W2C0	10.80	11.04
SC31D055-W2C0	11.96	12.23
SC31D065-W2C0	11.97	12.23
SC31D075-W2C0	11.97	12.23
SC31D077-W2C0	11.97	12.26
SC31D080-W2C0	11.98	12.27
SC31D083-W2C0	11.98	12.27

(1)Fitted with optional hot gas re-heat

Indoor unit	kg / circuit	HGRH kg / circuit
SC19D033-W2F0	5.68	5.83
SC19D038-W2F0	7.25	7.40
SC19D045-W2F0	7.25	7.40
SC19D064-W2F0	9.60	9.81
SC19D070-W2F0	9.61	9.81
SC19D076-W2F0	9.61	9.82
SC25D045-W2F0	8.44	8.63
SC25D050-W2F0	10.78	11.00
SC25D055-W2F0	10.78	11.00
SC25D067-W2F0	10.79	11.04
SC25D073-W2F0	10.79	11.04
SC25D080-W2F0	10.80	11.04
SC31D055-W2F0	11.96	12.23
SC31D065-W2F0	11.97	12.23
SC31D075-W2F0	11.97	12.23
SC31D077-W2F0	11.97	12.26
SC31D080-W2F0	11.98	12.27
SC31D083-W2F0	11.98	12.27

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	Precision Air Conditioning	21
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Precision Air Conditioning

nI s

Design Data – Water Cooled & Free Cooling

Dry Cooler (kW)	The dry cooler design duty is equivalent to the Total Heat of Rejection (THR) from the indoor unit.
	This value can be taken from the performance data in the technical manual using the following.

Parameters required are:

∙Ambient conditions (°C dB) Airedale recommend a 10°C lower than the EWT.

∙Glycol content (%)

∙ Entering & leaving water/glycol temperatures (°C) (EWT and LWT)

∙Mean condensing temperature (°C) Based on 5°C above leaving water/glycol temperature

Calculation of Design	The maximum design volumetric flow rate can be calculated using the following equation:
Volumetric Flow Rate (l/s)
	&	Q
	V =
		ρ x Cp x	T
	Where:	=	Total Heat Rejection (kW).
	Q
	T	=	Temperature Difference between Water/Glycol Entering/ Leaving (°C).
	ρ	=	Density. Refer to table below.
	Cp	=	Specific heat capacity. Refer to table below.

Calculation of Indoor Unit

Pressure Drop ( Ps)

The maximum indoor unit pressure drop can be calculated using the following equation:

DPs= DPw x Pχ

Using the volumetric flow rate calculated above, the pressure drop ( Pw) can be taken from the relevant pressure drop graph..

Where:
Ps	=	Maximum Water/Glycol Pressure Drop for the indoor unit (kPa).
Pw	=	Equivalent Water Pressure Drop for indoor unit (kPa).
Pχ	=	% Glycol Pressure Drop Correction Factor @ 20°C Water Temperature.
		Refer to table below.

		The resultant pressure drop (				Ps) is the maximum pressure drop based on the indoor unit
		running at the prescribed conditions.
		This will typically occur when the water/glycol temperature is approximately 20°C and the
		water/glycol is being circulated through the free cooling coil and through the water cooled
		condenser.
		The indoor unit pressure drop will reduce at other operating conditions.
Specific Heat Capacity (Cp)
		Water/Glycol Temperature °C						Ethylene Glycol (Volume) / Freezing Point °C
						0% / 0°C		10% / -4°C		20% / -9°C	30% / -15°C	40% / -23°C
						Fχ		Fχ		Fχ	Fχ	Fχ
		20				4.183		3.972		3.815	3.645	3.468
		25				4.181		3.981		3.826	3.660	3.485
		30				4.179		3.989		3.838	3.674	3.502
		35				4.178		3.998		3.849	3.688	3.518
		40				4.179		4.007		3.861	3.702	3.535
		45				4.181		4.015		3.872	3.716	3.552
ρ
								Ethylene Glycol (Volume) / Freezing Point °C
Density ( )
		Water/Glycol Temperature °C				0% / 0°C		10% / -4°C		20% / -9°C	30% / -15°C	40% / -23°C
						Fχ		Fχ		Fχ	Fχ	Fχ
		20				998		1013		1030	1045	1060
		25				997		1012		1028	1043	1058
		30				996		1010		1026	1041	1055
		35				994		1008		1024	1039	1053
		40				992		1006		1022	1036	1050
		45				990		1003		1020	1035	1048
Pressure Drop Correction
		Water/Glycol Temperature °C						Ethylene Glycol (Volume)
Factor (Pχ)						0%		10%		20%	30%	40%
						Pχ		Pχ		Pχ	Pχ	Pχ
		20				0.983		1.0125		1.054	1.0958	1.15

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Installation Data
System Pressure	The system must be pressure tested to ensure that the pipework is installed satisfactory.

Strength Test

Nitrogen (Oxygen free) should only be used.

Strength Pressure Test is the pressure applied to a refrigeration system for its integral strength and it is usually defined as maximum working pressure (MWP) x factor of 1.43.

The pressure test ideally should be carried out for a period of one hour.

IMPORTANT Low pressure transducers and switches must be removed whilst the high pressure strength test is carried out.

CAUTION	Before carrying out the pressure test, precautions shall be taken to evacuate all
	personnel from the area of risk and post notices advising that the system or
	equipment is under pressure.
	The test pressure in the system should be held for at least one hour. A longer period may
	be appropriate for larger systems or a fall in pressure due to leaks may not be detected.
	Any fall in pressure indicates a leak which should be traced.
System Leak Test	The system leak test is carried out with the low pressure transducers and switches fitted.
	Leak Pressure Test is the pressure applied to a refrigeration system or part of a system to
	test for leakage. This test pressure is defined as Maximum Working Pressure of the
	particular system x factor of 1.1.
RECORD	Record on commissioning sheet provided once completed.

IMPORTANT It is important that solenoid valves are energised correctly to ensure that the Hot Gas Reheat coil is fully pressure tested (the normally closed (NC) valve should be energised).

The use of a magnetic coil lifter is recommended.

Filter Drier	The filter drier must be installed as close to the expansion valve as possible. It should be
	the last component within the system to be installed.
IMPORTANT	Failure to correctly fit a filter drier can cause malfunction of the system. They are
	however no substitute to good refrigeration practices with regard to system
	cleanliness.

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Installation Data

Evacuation	Evacuation for systems operating on R410A refrigerant should be carried out as follows
	1	The procedure should be carried out using a high vacuum pump. The pump should
		be connected 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.
	2	Triple evacuation should be used to ensure that all contaminants are removed or at
		least reduced to significantly low proportions.
	3	The vacuum pump should be operated until a pressure of 1.5 Torr (200 Pa) absolute
		pressure is reached, at which time the vacuum pump should be stopped and the
		vacuum broken with oxygen free nitrogen until the pressure rises above zero.
	4	The above operation should be repeated a second time.
	5	The system should then be evacuated a third time but this time to 0.5 Torr (absolute
		pressure and broken with the correct refrigerant, until pressures equalise between
		the charging bottle and the system.

RECORD Record on commissioning sheet provided once completed.

IMPORTANT It is important that solenoid valves are energises correctly to ensure that the Hot Gas Reheat Coil is fully evacuated. (The Normally Closed (NC) valve should be energised).

The use of a magnetic coil lifter is recommended.

CAUTION Ensure that the evacuation gauge is isolated before introducing any pressure. The gauge may become dangerous when exposed to any positive pressure.

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Installation Data

Refrigerant Handling	Only certified personnel must charge the systems with refrigerant
CAUTION	Personal protective equipment must be worn when handling refrigerants.
Charging Gauges	The refrigerant Schrader connections on the SmartCool units are 5/16” to allow for the
	increase working pressures of R410A. Gauges designed for R410A must only be used.
Refrigerant Quality	The system must be charged with clean virgin refrigerant R410A only.
Refrigerant Charge	The exact refrigerant charge is dependant on site circumstances and operating
Weights	temperatures. Pipework runs must be taken into consideration. The refrigerant charge
	must be weighed into the system and recorded within your F-Gas record.
RECORD	Record on commissioning sheet provided once completed.

IMPORTANT It is important that solenoid valves are energised correctly to ensure that the Hot Gas ReHeat coil is broken of vacuum (the Normally Closed (NC) valve should be energised).

The use of a magnetic coil lifter is recommended.

	The valve must also be energised when charging the system with refrigerant.
	The solenoid valve head must be put back on the body before unit operation.
Schrader Caps	Schrader caps must be replaced following connection of service gauges to the unit.
Final Leak Test	A final leak test must be carried out following removal of service gauges prior to leaving
	site ensuring that the system complies with F-Gas regulations.

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Installation Data

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Oil Charging Guide The compressor(s) is supplied with oil for up to approximately 20m of interconnecting pipework.

Compressors	The compressor oil sight glass (where fitted) should indicate a level of between 1/3
	and 2/3 to ensure correct operation.
	Run the compressor(s) for a minimum of 1 hour to check oil return and motor function. For
	tandem or trio sets, checks should be performed in part load operation.
	1. Use a temperature metering device on each circuit:
	2. Check operation and superheat readings are within acceptable limits.
	3. Check suction and discharge pressure are within acceptable limits.
	4. Check there is NO foaming in the compressor sight glass. This would indicate the
	presence of liquid returning to the compressor.
	5. Check sight glass following commissioning and top oil up if level has fallen below
	minimum.
	6. If oil has been added to allow for long pipe runs, large number of oil traps, etc,
	and the level in the compressors keep decreasing; the oil return in the system is
	insufficient. A pipework design check is required.
IMPORTANT	It is possible to check the oil level of a compressor a few moments after it is turned off.
	However the oil level must not be observed when the compressor is turned off. The
	refrigerant in the system can give a false indication of this level.
	In this case the oil level should be at about 1/3.
IMPORTANT	For applications with pipework in excess of 20m, long vertical runs, special
	operating conditions etc, ensure good oil return is guaranteed AND add sufficient
	oil to the system.
	REMEMBER, TOO MUCH or TOO LITTLE OIL can cause compressor damage. As a
	rule NO MORE than 10% additional oil should be added to any system.
	ALWAYS use the oil specified by the compressor manufacturer.
	Polyolester oil is extremely hygroscopic and will rapidly absorb moisture from the
	air. The oil must therefore not be left open to the atmosphere for long periods of
	time. The system must be correctly evacuated to ensure all moisture is removed.
Pressure switch settings	High pressure switch cut-out	40.3 bar	(583psi)
	High pressure switch cut-in	30.0 bar	(435psi)
	High pressure switch differential	10.3 bar	(148psi)
	Low pressure switch cut-out	1.0 bar	(14psi)
	Low pressure cut-in	3.0 bar	(43psi)
	Low pressure differential	2.0 bar	(29psi)

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Precision Air Conditioning																				SmartCoolTM – D
Compressor Oil Information
																	Oil	Recommended	Motor	Discharge Gas		Oil
						Total oil						Compressor						oil			Temperature
			Unit														Sight		Protection	Temperature		sump
						charge (l)						Weight (kg)						replacement			Range
																	Glass		Type	Protection		heater
																		variant
						CP1			CP2			CP1			CP2
			SC19D055-X2X2		1.57			1.57			37.2			37.2
			SC19D070-X2X2			1.57			1.57			37.2			37.2		Yes	PVE Lubricant	Internal	Thermodisc		No
	X2X2		SC19D080-X2X2		1.57			1.57			37.2			37.2				320HV
			SC25D080-X2X2			1.57			1.57			37.2			37.2
			SC25D090-X2X2		3			3			58			58
			SC25D100-X2X2			3			3			58			58					Discharge	Opens
			SC31D100-X2X2		3			3			58			58			Yes	POE 160SZ	Internal	Gas		Yes
																					@135°C
																				Thermostat
			SC31D120-X2X2			3.3			3.3			64.2			64.2
			SC31D130-X2X2		3.3			3.3			64.2			64.2
			SC19D033-X2C0			1.57			1.57			37.2			37.2			PVE Lubricant
			SC19D038-X2C0		1.57			1.57			37.2			37.2			Yes		Internal	Thermodisc		No
																		320HV
			SC19D045-X2C0			1.57			1.57			37.2			37.2
			SC19D064-X2C0		3.3			3.3			67			67						Discharge	Opens
			SC19D070-X2C0			3.3			3.3			69			69		Yes	POE 160SZ	Internal	Gas		Yes
																					@135°C
			SC19D076-X2C0		3.6			3.3			72			72						Thermostat
						1.57			1.57			37.2			37.2		Yes	PVE Lubricant	Internal	Thermodisc		No
	X2C0		SC25D045-X2C0															320HV
			SC25D050-X2C0		3			3			58			58
			SC25D067-X2C0			3.3			3.3			67			67
			SC25D055-X2C0			3			3			58			58
			SC25D073-X2C0			3.3			3.3			69			69
			SC25D080-X2C0		3.6			3.6			72			72						Discharge	Opens
			SC31D055-X2C0			3			3			58			58		Yes	POE 160SZ	Internal	Gas		Yes
																					@135°C
			SC31D065-X2C0		3.3			3.3			64.2			64.2						Thermostat
			SC31D075-X2C0			3.3			3.3			64.2			64.2
			SC31D077-X2C0		3.3			3.3			69			69
			SC31D080-X2C0			3.3			3.3			69			72
			SC31D083-X2C0		3.6			3.8			72			72
			SC19D055-W2W2			1.57			1.57			37.2			37.2
			SC19D070-W2W2		1.57			1.57			37.2			37.2			Yes	PVE Lubricant	Internal	Thermodisc		No
	W2W2		SC19D080-W2W2			1.57			1.57			37.2			37.2			320HV
			SC25D080-W2W2		1.57			1.57			37.2			37.2
			SC25D090-W2W2			3			3			58			58
			SC25D100-W2W2		3			3			58			58						Discharge	Opens
			SC31D100-W2W2			3.3			3.3			64.2			64.2		Yes	POE 160SZ	Internal	Gas		Yes
																					@135°C
			SC31D120-W2W2		3.3			3.3			64.2			64.2						Thermostat
			SC31D130-W2W2			3.3			3.3			64.2			64.2

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Installation

Compressor Oil Information

				Oil	Recommended	Motor	Discharge
		Total Oil	Compressor Weight				Gas	Temperature	Oil sump
	Unit			Sight	oil replacement	Protection
		Charge (l)	(kG)				Temperature	Range	heater
				Glass	variant	Type
							Protection

	SC19D033-W2C0	1.57	1.57	37.2	37.2		PVE Lubricant
	SC19D038-W2C0	1.57	1.57	37.2	37.2	Yes		Internal	Thermodisc		No
							320HV
	SC19D045-W2C0	1.57	1.57	37.2	37.2
	SC19D064-W2C0	3.3	3.3	67	67				Discharge	Opens
	SC19D070-W2C0	3.3	3.3	69	69	Yes	POE 160SZ	Internal	Gas		Yes
										@135°C
	SC19D076-W2C0	3.6	3.6	72	72				Thermostat
							PVE Lubricant
		1.57	1.57	37.2	37.2	Yes		Internal	Thermodisc		No
	SC25D045-W2C0						320HV
W2C0
	SC25D050-W2C0	3	3	58	58
	SC25D067-W2C0	3.3	3.3	69	69
	SC25D055-W2C0	3	3	58	58
	SC25D073-W2C0	3.3	3.3	69	69
	SC25D080-W2C0	3.6	3.6	72	72				Discharge	Opens
	SC31D055-W2C0	3	3	58	58	Yes	POE 160SZ	Internal	Gas		Yes
										@135°C
	SC31D065-W2C0	3.3	3.3	64.2	64.2				Thermostat
	SC31D075-W2C0	3.3	3.3	64.2	64.2
	SC31D077-W2C0	3.3	3.3	69	69
	SC31D080-W2C0	3.3	3.6	69	72
	SC31D083-W2C0	3.6	3.6	72	72
	SC19D033-W2F0	1.57	1.57	37.2	37.2		PVE Lubricant
	SC19D038-W2F0	1.57	1.57	37.2	37.2	Yes		Internal	Thermodisc		No
							320HV
	SC19D045-W2F0	1.57	1.57	37.2	37.2
	SC19D064-W2F0	3.3	3.3	67	67				Discharge	Opens
	SC19D070-W2F0	3.3	3.3	69	69	yes	POE 160SZ	Internal	Gas		Yes
										@135°C
	Sc19D076-W2F0	3.6	3.6	72	72				Thermostat
							PVE Lubricant
	SC25D045-W2F0	1.57	1.57	37.2	37.2	Yes		Internal	Thermodisc		No
							320HV
W2F0
	SC25D050-W2F0	3	3	58	58
	SC25D067-W2F0	3.3	3.3	67	67
	SC25D055-W2F0	3	3	58	58
	SC25D073-W2F0	3.3	3.3	69	69
	SC25D080-W2F0	3.6	3.6	72	72				Discharge	Opens
	SC31D055-W2F0	3	3	58	58	yes	POE 160SZ	Internal	Gas		Yes
										@135°C
	SC31D065-W2F0	3.3	3.3	64.2	64.2				Thermostat
	SC31D075-W2F0	3.3	3.3	64.2	64.2
	SC31D077-W2F0	3.3	3.3	69	69
	SC31D080-W2F0	3.3	3.6	69	72
	SC31D083-W2F0	3.6	3.6	72	72

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Installation Data

Chilled Water System The chilled water coil is factory pressure tested to 20 barg. The chilled water system maximum operating pressure is 10 barg.

The chilled water pipework external to the unit is required to be pressure tested to ensure water tightness.

The chilled water coils need to be bled of air prior to unit operation. The bleed valve is positioned at the top of the coil; with access through the front door.

For the valve working pressure, please contact Airedale.

IMPORTANT Air in a chilled water system may reduce the cooling performance of the unit. The required pump power input would also be increased.

Humidification

Humidifier - Intelligent Humidification shall be provided by an electrode boiler. The sealed humidifier design shall Modulation ensure that only clean sterile steam is supplied to the conditioned area and corrosive salts

and minerals are held in the disposable bottle. The steam shall be distributed through a sparge pipe fitted to the coil assembly.

Featuring modulating capacity output control as standard, the system shall provide continuous modulation of steam output in response to a proportional control signal. The output control shall range is 20%-100% of the humidifier rated value and be designed to give an approximate steam output of +/- 5% at 25°C (at the sensor), thus ensuring precise control of the conditioned space.

The cylinder operating life time shall be automatically optimised via the integrated water conductivity sensor, which combined with the controls shall monitor and regulate the water refill cycle to reduce excessive salt deposits and the progressive wear of the cylinder.

All humidifier parameters and alarms shall be accessible and adjustable via the microprocessor display keypad unit, main features shall include not less than:

Supply water conductivity (μS/cm)

Actual steam output (kg/h)

Required steam output (kg/h)

Actual current rating (A)

Required current rating (A)

Status mode (Start Up, Running, Filling, Draining)

Installation

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SmartCoolTM - D		Precision Air Conditioning
Humidifier Bottle	Limit Values for the supply water with Medium to High conductivity in an immersed
Information	electrode humidifier.

Installation

			Min	Max
Hydrogen ions		pH	7	8.5
Specific conductivity at 20°C	σR, 20°C	μS/cm	300	1250
Total dissolved solids	TDS	mg/l	(1)	(1)
Dry residue at 180°C	R180	mg/l	(1)	(1)
Total hardness TH		mg/l CaCO3	100(2)	400
Temporary hardness		mg/l CaCO3	60(3)	300
Iron + Manganese		mg/l Fe + Mn	0	0.2
Chlorides		ppmCl	0	30
Silica		mg/l SiO2	0	20
Residual chlorine		mg/l Cl	0	0.2
Calcium sulphate		mg/l CaSO4	0	100
Metallic impurities		mg/l	0	0
Solvents, diluents, soaps, lubricants		mg/l	0	0

(1)Values depending on specific conductivity; in general: TDS 0.93 * σ20; R180 0.65 * σ20

(2)not lower than 200% of the chloride content in mg/l of Cl-

(3)not lower than 300% of the chloride content in mg/l of Cl-

Limit Values for the supply water with Medium to Low conductivity in an immersed electrode humidifier

			Min	Max
Hydrogen ions		pH	7	8.5
Specific conductivity at 20°C	σR, 20°C	μS/cm	125	500
Total dissolved solids	TDS	mg/l	(1)	(1)
Dry residue at 180°C	R180	mg/l	(1)	(1)
Total hardness TH		mg/l CaCO3	50(2)	250
Temporary hardness		mg/l CaCO3	30(3)	150
Iron + Manganese		mg/l Fe + Mn	0	0.2
Chlorides		ppmCl	0	20
Silica		mg/l SiO2	0	20
Residual chlorine		mg/l Cl	0	0.2
Calcium sulphate		mg/l CaSO4	0	60
Metallic impurities		mg/l	0	0
Solvents, diluents, soaps, lubricants		mg/l	0	0

(1)Values depending on specific conductivity; in general: TDS 0.93 * σ20; R180 0.65 * σ20

(2)not lower than 200% of the chloride content in mg/l of Cl-

(3)not lower than 300% of the chloride content in mg/l of Cl-

	Warning: no relation can be demonstrated between water hardness and
	conductivity.
	IMPORTANT WARNING: do not treat water with softeners!
	This could cause corrosion of the electrodes or the formation of foam, leading to
	potential operating problems or failures.
IMPORTANT	The water supply should conform to Local Water Regulations and within the
	following guidelines:
	Supply water pressure between 1.0 barg to 8.0 barg, > 8.0 bar a pressure reducing valve
	should be fitted.
	A minimum flow rate of 1.21 l/min is required.
	The humidifier inlet is fitted with a braided flexible hose, having 3/4” BSPF connection.
IMPORTANT	Ensure the union between the humidifier assembly and supply hose is fully
	tightened. Any looseness, misalignment or damage to the union can lead to
	water leakage.
CAUTION	It is recommended that a shut off valve and a mechanical strainer be fitted to the
	water supply prior to the humidifier assembly.
Water Conductivity	As standard the humidifier is fitted with the standard conductivity cylinder which covers
	the majority of water supplies. Low and high conductivity options can be specified at
	order.

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