Alfalaval Optigo CS User manual

ORIGINAL INSTRUCTIONS
AHE00045EN 1904
Alfa Laval Optigo CS
Instruction manual
• Product description
• Product labels
• Unpacking & lifting
• Installation
• Maintenance
• Spare parts
CS300
CS200

AHE00045EN 1904
2
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
Index
1. Important information
1.1 Disclaimer...................................................................................................................................3
1.2 Intended use...............................................................................................................................3
1.3 Where to nd product information ..............................................................................................3
2. Product description
2.1 General information and application...........................................................................................4
2.2 Standard conguration ...............................................................................................................4
2.3 Options.......................................................................................................................................5
2.4 Code description ........................................................................................................................5
3. Product labels...........................................................................................................................6
4. Unpacking and lifting...............................................................................................................8
5. Installation
5.1 Mounting.....................................................................................................................................9
5.2 Drain line ..................................................................................................................................11
5.3 Refrigerant connections ...........................................................................................................11
5.4 Electrical connections...............................................................................................................12
6. Maintenance
6.1 Fan replacement ......................................................................................................................14
6.2 Driptray and side covers...........................................................................................................14
6.3 Defrost heater elements replacement ......................................................................................14
6.4 Spare parts..............................................................................................................................15

AHE00045EN 1904
3
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
1 Important information
1.1 Disclaimer
This Instruction Manual applies to all Alfa Laval Optigo CS air cooler products and is supplied in
combination with the Alfa Laval Air Cooler Product Manual AHE00042. Both manuals must be
carefully examined and instructions should be followed up at all times. Alfa Laval does not accept
liability for any damage resulting from non-compliance to the instructions as given in the manuals
and order-related documents.
1.2 Intended use
Air coolers are partly completed machinery according to Machine Directive 2006/42/EC and intend-
ed for incorporation in cooling systems. Declarations of Incorporation are available on www.alfala-
val.com. The units may not be put into operation until the conformity of the complete machine or
cooling system has been declared according to the following standards and directives:
• Pressure Equipment Directive 2014/68/EU
• Machine Directive 2006/42/EC
• Low Voltage Directive 2014/35/EU
• Electrical Equipment of Machines IEC 60204-1
• Electro Magnetic Compatibility 2014/30/EU
• Any applicable local or national legislation
1.3 Where to find product information
Detailed technical data for individual product models are available in order related documents, on
the product label and in product data sheets. Comprehensive technical information for all Alfa Laval
air heat exchanger products is available on-line on www.alfalaval.com. This includes:
• Product manuals
• Instruction manuals
• Product leaflets & brochures
• Product data sheets (selection software)
• Dimensional drawings
• Electrical wiring diagrams
• Certificates
Alfa Laval offers world-wide service and support in over 55 countries. In case of any questions
or uncertainty please contact your local Alfa Laval representative. Contact addresses are available
at www.alfalaval.com.
Optigo CS

AHE00045EN 1904
4
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
2 Product description
2.1 General information and application
Optigo CS are commercial slim line air coolers for general application in small to medium-sized
cooling and freezing rooms. CS200 are mini coolers with capacities up to 1.8 kW (SC2), whereas
the CS300 line has a different casing geometry and offers cooling capacities up to 6.8 kW (SC2).
All CS models are characterised by a low silhouette (only 15 cm for CS200) for the efficient use of
cold room space.
• Refrigerants: HFO/HFC DX refrigerants (CSE) and CO2DX (CSX)
• Room temperatures: +10 to -30 °C
• Capacity range (SC2): 550 up to 6850 W
• Air volume: 380 up to 3800 m3/h
Model Refrigerant Design pressure Test pressure
CSE HFO/HFC 40 bar 57 bar
CSX CO2 80 bar 114 bar
2.2 Standard configuration
• Innovative coil manufactured from internally grooved Cu tubes, aluminium fins and dedicated
thicker tubes for CO2 application. Tube pitch is 30x26 mm staggered, standard fin spac-
ings 4 and 7 mm. All models fitted with a T-connection for better refrigerant distribution. This
T-connection is also suitable as a hot gas defrost connection.
• Standard fitted with plug-in dual fan speed EC motors in two diameters (200 and 300 mm).
Power supply 230/50-60/1.
• Durable aluminium alloy casing, white epoxy coated RAL 9002. Hinged driptray construction,
inspection panel for CS200 and removable side panels for CS300. Sufficient room for mount-
ing of expansion valve inside casing. Pre-cut passages for multiple choice connections on both
sides and top.
• All Optigo CS models are delivered in wood-reinforced cardboard boxes, suitable for safe stack-
ing.

AHE00045EN 1904
5
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
2.3 Options
• Electric defrost (E)
For cold rooms with room temperatures below 4 °C and frost build-up is likely, the application of
a defrosting system is advised. Electric defrost for Optigo CS consists of stainless steel heater
elements mounted against the bottom plate of the coil. The defrost element can be accessed
after opening the driptray. The defrost element are connected to separate terminals in the termi-
nal box. Electric defrost is mounted as default for 7 mm models, optional as a separate kit for 4
mm models.
Optigo model Watt Power supply
CS201 410 230/50-60/1
CS202 890 230/50-60/1
CS301 580 230/50-60/1
CS302 1110 230/50-60/1
CS303 1640 230/50-60/1
CS304 2170 230/50-60/1
CS305 2700 230/50-60/1
2.4 Code description
CS E H 20 2 B S 230V BO AL E CB - AL 7.0 CU
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 Commercial unit cooler - slim line
2 Refrigerant system (E=HFO/HFC DX, X=CO2 DX)
3 Fan speed (H=high speed, L=low speed)
4 Fan diameter (20=200, 30=300 mm)
5 Number of fans (1 to 5)
6 Tube rows code (B, C)
7 No. of phases (S=1)
8 Motor voltage
9 Packing (BO=box)
10 Casing material (AL=epoxy coated aluminium)
11 Defrost system (E=electric defrost, blank=air defrost)
12 Connection box (CB)
13 Fin material (AL=aluminium)
14 Fin spacing (4.0, 7.0 mm)
15 Tube material (CU=copper)

AHE00045EN 1904
6
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
3 Product labels
WARNING
READ INSTRUCTION MANUAL BEFORE
INSTALLATIONS OPERATIONS AND MAINTENANCE
TO AVOID INJURIES OR DAMAGE
Country of origin Italy
Manufacturer: Manuf. Date:
AIR HEX ALONTE S.R.L. - Italy 04 / 2019
Model: O.A. 1106809
CSEH201 BS 230V BO AL CB
CA 4.0 CU
Item ID: 3289052250
Serial no. AP 5002826
Unit Net Weight: 7,250 Kg ±5%
Sn
Motorfan data:
Vn: 1~230V
f: 50/60 Hz
EXAMPLE
1. Product label
Model Refer to paragraph "Code
description"
Item ID
Serial no.
Communicate these when
ordering spare parts as
they identify the unit
O.A. Order Acknowledgement
number
Unit Net Weight Check before any lifting
operation to ensure that
proper lifting tools are used
⑧
③②
①⑨
⑩
⑤④
⑥⑦
⑪
CS20
CS30
④
⑤
⑧
⑨①⑩
⑪
⑥⑦
③②

AHE00045EN 1904
7
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
5.307
ATTENZIONE!
CIRCUITO FRIGORIFERO PRECARICATO CON AZOTO
WARNING!
PRECHARGED REFRIGERANT CIRCUIT WITH NITROGEN
ACHTUNG!
VERLADTER KÄLTEMITTELKREISLAUF MIT STICKSTOFF
ATTENTION!
CIRCUIT FRIGORIFIQUE PRE-CHARGE AVEC AZOTE
BHИМАНИЕ!
СИСТЕМА ЗАПРАВЛНА АЗОТОМ
3. Nitrogen precharge warning
Units are delivered from the manufacturer
with an overpressure. Check pressure on the
Schrader valve. With unpressurised unit: imme-
diate report to manufacturer and note on the bill
of delivery.
6. Fan motor
Fan motor item number.
7. Electrical warning
Electrically powered component. Switch off
power supply before any maintenance or instal-
lation activity.
8. Fan direction
Sticker indicates fan rotation direction.
9. Moving parts
Warning: moving parts.
Switch off power supply before any maintenance
or installation activities.
PARTI INTERNE IN MOVIMENTO A
COMANDO AUTOMATICO.
TOGLIERE TENSIONE PRIMA DI TOCCARE
AUTOMATIC CONTROL MEANS MOVING
INTERNAL PARTS.
SWITCH OFF POWER BEFORE TOUCHING
SCHALTUNG AUF AUTOMATIK, INTERNE
BAUTEILE IN BETRIEB. VOR ARBEITSBEGINN
SPANNUNG UNTERBRECHEN
ÉLÉMENTS INTERNES A DÉMARRAGE
AUTOMATIQUE. COUPER L’ALIMENTATION
ÉLECTRIQUE AVANT INTERVENTION
Cod. 69100175
Spare part
item no
9460088799
IN
OUT
4/5. In/Out
Refrigerant connections inlet and outlet.
10. Eurovent
Sticker is applied when the product is included in
the Eurovent Certify All program.
WARNING
READ INSTRUCTION MANUAL BEFORE
INSTALLATIONS OPERATIONS AND MAINTENANCE
TO AVOID INJURIES OR DAMAGE
Manufacturer: Manuf. date:
AIR HEX ALONTE S.R.L. - Italy 04 / 2019
Model: O.A. 1106809
CSEH201 BS 230V BO AL CB
CA 4.0 CU
Item ID: 3289052250
Serial no. AP 5002826
Sn
Coil PED data: I
Max DN: 12 mm
Fluid Group 2
Coil Ts:
Ps:
Pt:
Test Date:
+125/-60 °C
40 bar
57 bar
04-2019
EXAMPLE
2. Product label - coil
Model Refer to paragraph "Code
description"
Item ID
Serial no.
Communicate these when
ordering spare parts as they
identify the unit
Max DN Maximum diameter of the dis-
tributor tube
Fluid Group According to PED
Coil Ts Range of operating tempera-
tures for the coil
Ps Design pressure
Pt Test pressure
Test date Date on which the coil has
been pressure tested in the
factory

AHE00045EN 1904
8
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
Always follow guidelines and instructions as given in the air cooler product manual AHE00042.
Optigo CS air coolers are delivered in a reinforced cardboard box. For CS300 models this box is
fixed on a wooden support pallet. Handling and positioning can take place manually. When more
than one cooler units are delivered in a single shipment, packed air coolers may be stacked during
transportation.
Open cardboard box and take out cooler unit.
max. 10
max. 4
Respect the maximum number of stacked air cooler units.
Additional box content:
• Drilling mould (1x, CS200 only)
• Manual
• PVC driptray drain connection
• Cu tube bends for 90° refrigerant
in/out connections (2x, CS200 only)
1 X
2 X
1 X
4 Unpacking and lifting
CS200 CS300
max. 5
max. 2
CS200 CS300

AHE00045EN 1904
9
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
Drawings showing all required mounting and refrigerant connection
dimensions are available for download on www.alfalaval.com.
Dimensional drawings
5 Installation
Always follow guidelines and instructions as given in the air cooler product manual AHE00042.
5.1 Mounting
565
241
283
L
L
506
170
Ø3/4”
Ø3/4”
208
M
208
M
535
CS300
CS200
G ext.
G ext.
Dimensions Connections
Length Mounting Shipping OD in/out
L M volume CSE CSX
model mm mm m3mm mm
201B 566 450 0.04 12/12 12/12
202B 1016 900 0.12 12/12 12/12
301B 865 470 0.26 12/12 12/12
301C 865 470 0.26 12/12 12/12
302B 1365 970 0.39 12/14 12/14
302C 1365 970 0.39 16/16 12/14
303B 1865 1470 0.51 16/16 12/14
303C 1865 1470 0.51 16/18 12/14
304C 2365 1970 0.64 16/20 12/14
305C 2865 2470 0.76 16/22 12/14

AHE00045EN 1904
10
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
CS200 CS300
Use drilling mould to mark mounting positions
(included for CS200 only).
Fix cooler unit to the ceiling using the fixing
materials provided. Use extra wide washers (ISO
7093) when mounting the unit to the ceiling.
For CS200 the integrated fan plate/driptray must
be opened to access the fixing points.
Mount PVC driptray drain.
Tighten by hand only.
Remove the plastic strips that secure the EC fan
unit during transport and handling. The air cooler
is now ready to be installed.

AHE00045EN 1904
11
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
5.2 Drain line
The drain line diameter must be at least the size
of the driptray drain diameter and should be laid
with an adequate slope. For room temperatures
below 0° C drain line insulation and defrosting
are required.
A syphon must be installed on the drain line,
outside the cold room.
Tighten drain connection by hand only.
5.3 Refrigerant connections
Never bend the air cooler refrigerant connection
tubes. Bends in refrigerant pipework are only
allowed in the external piping section.
For both CS200 and CS300 there is sufficient
space for mounting the expansion valve inside
the cooler casing. Casing cutaways available on
all cooler sides for refrigerant piping.
CS200 CS300
Expansion valve
Expansion valve

AHE00045EN 1904
12
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
Electrical connections
5.4 Electrical connections
The following data determine which connection diagram is to be selected
and respected for electrical installation:
•Heat exchanger model indication
•Electrical options
Electrical connection diagrams are available for download on
www.alfalaval.com. When in doubt always contact your local supplier or
Alfa Laval representative for assistance.
Electrical connections 2-speed EC fan motors
Fan speed selection
High/Low
Open the diptray and consequently the fan
motor connection box. You will find the electric
wiring diagram inside.
High speed connection
Connect blue wire (N) to neutral.
Connect black wire (L) to power supply.
black
blue

AHE00045EN 1904
13
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
Electric defrost heater connection (optional)
Electric defrost heaters
Heater 230V/50-60Hz
Power
model W
CS201 410
CS202 890
CS301 580
CS302 1110
CS303 1640
CS304 2170
CS305 2700
Low speed connection
Connect blue wire to neutral (N) and black wire
to power supply (L).
Open the orange clamps from the blue and
brown wires.
Create a jumper connection between the brown
and the blue wires. This extra piece of cable is
not supplied with the unit.
brown
blue
black

AHE00045EN 1904
14
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
6 Maintenance
Ensure complete electrical isolation before performing any maintenance activity and always follow
guidelines and instructions as given in the air cooler product manual AHE00042.
6.1 Fan replacement
Unplug power cable. Unscrew fixing bolts and
remove old fan. Mount new fan in identical
position. Use an anti-corrosion compound when
remounting the fixing bolts.
Replace power cable connector when the new
fan has been mounted.
6.2 Driptray and side covers
Driptrays can be opened for inspection, cleaning
and maintenance purposes. Always disconnect
drain line before opening the driptray.
Prior to opening, run a full defrost cycle to
remove any ice in the driptray. Ensure the drip-
tray is empty before opening. The weight of any
leftover water could injure the service operator if
the driptray fell open accidentally.
Both CS200 and CS300 models are fitted with
an integrated fan plate/driptray. To open this
driptray, first loosen screws 'c' (CS300 only)
and remove bolts 'a'. Then lower the driptray.
Respect the maximum opening angle (90°) to
avoid damage to the driptray hinges.
For CS300 models, side covers can be removed
for inspection, cleaning and maintenance pur-
poses. To remove side covers, open driptray
and loosen fixing screws 'b'. CS200 models are
fitted with a removable side hatch to access the
expension valve.
b+c
a
a
a
a
a
b
b
c
6.3 Defrost heater elements replacement
The replacement procedure for defrost heater
elements is identical for all Optigo CS models.
To replace defrost elements, open integrated fan
plate/driptray, remove coil bottom plate and take
defrost heater element out of its slots.
Mount new element in reverse order and restore
electrical connections as originally set.
CS300
CS200

AHE00045EN 1904
15
Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
7 Spare parts
Spare parts can be selected and ordered in the online eBusiness tool
Alfa Laval Anytime. If required please contact your local Alfa Laval
Representative for assistance.
Alfa Laval Anytime
Spare parts for Optigo CS
1 Fan motors
2 Electrical defrost heater KIT
3 Driptray drain
CS200 CS300
②
①
③
②
①
③

www.alfalaval.com