Thermoscreens CS 1000 Manual

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CS AIR CURTAIN
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
(IMAGES ARE FOR ILLUSTATION PURPOSES ONLY)
English

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1 CONTENTS .................................................................................................................................. 2
2 ELECTRICAL SAFETY ................................................................................................................. 3
3 SPECIFICATIONS ........................................................................................................................ 3
4. INTRODUCTION .......................................................................................................................... 4
5. DELIVERY CONTENTS ............................................................................................................... 5
6. TOOLS REQUIRED ...................................................................................................................... 6
7. INSTALLATION (HORIZONTAL UNITS) ...................................................................................... 6
8. INSTALLATION (VERTICAL UNITS) ........................................................................................... 8
9. ACCESS FOR ELECTRICAL CONNECTIONS ......................................................................... 10
10. COMMISSIONING THE SYSTEM .............................................................................................. 12
11. SIGN OFF ................................................................................................................................... 13
12. FAULT CONDITIONS ................................................................................................................. 14
13. SERVICE & MAINTENANCE ..................................................................................................... 14
14. WARRANTY ............................................................................................................................... 15
APPENDIX 1 — DIMENSIONS OF CS HORIZONTAL AIR CURTAIN ......................................... 16
APPENDIX 2 — DIMENSIONS OF CS VERTICAL AIR CURTAIN ............................................... 17
APPENDIX 3 — WIRING DIAGRAM CS AIR CURTAIN ............................................................... 18
APPENDIX 4 — WIRING DIAGRAM CS MASTER/SLAVE .......................................................... 19
15. DECLARATION OF CONFORMITY ........................................................................................... 20
1 CONTENTS
Page

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Electrical Supply and Wiring to the Air Curtain
All electrical wiring and connections MUST be carried out by a competent qualified electrician in
accordance with the latest edition of IEE wiring regulations and local statutory regulations if
applicable.
A 1 phase local isolator having a contact separation of at least 3mm on Live and Neutral poles
must be fitted in the electrical supply to the air curtain and located in an accessible position
adjacent to the unit.
The appliance must be connected by cables having an appropriate heat resistant temperature
rating.
All supply cables, circuit breakers and other electrical installation equipment must be correctly
sized for the air curtain model being installed; see section 3: Specifications.
20mm size cable glands or conduit connectors of IP44 rating or above must be used for the
Electrical Supply and Control Cables into the air curtain.
See Wiring Diagrams for connecting electrical supply and control cables to the air curtain. The
air curtain must be earthed.
Air Curtain
Model No
Electrical
Supply
(V/ph/Hz)
Rated
Electrical
Power Input
(W)
Rated
Current
(A)
Max. Air
Volume
Flow rate
(m3/h)
Specific
Fan Power
min. - max.
(W/l/s)
Effective
Width of
Airstream
(m)
Weight
(kg)
CS 1000 230/1/50 430 1.8 2250 0.20 - 0.70 1.10 60
CS 1500 230/1/50 630 2.7 3400 0.23 - 0.69 1.63 70
CS 2000 230/1/50 820 3.5 4500 0.25 - 0.68 2.15 85
Air Curtain
Model No
Electrical
Supply
(V/ph/Hz)
Rated
Electrical
Power Input
(W)
Rated
Current
(A)
Max. Air
Volume
Flow rate
(m3/h)
Specific
Fan Power
min. - max.
(W/l/s)
Effective
Height of
Airstream
(m)
Weight
(kg)
CS 1000 V 230/1/50
430 1.8 2250 0.20 - 0.70 1.10 62
CS 1500 V 230/1/50
630 2.7 3400 0.23 - 0.69 1.63 72
CS 2000 V 230/1/50
820 3.5 4500 0.25 - 0.68 2.15 87
2 ELECTRICAL SAFETY
3 SPECIFICATIONS
Table 1
Table
2

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Established in the 1960s, Thermoscreens is a leading air curtain manufacturer that exports to over 60
countries worldwide.
As with all our products, the CS range air curtains are designed with energy efficiency in mind which
is why they have fans with advanced EC motor technology to produce a very high air flow with low
electrical energy consumption.
CS curtains are designed to be surface mounted inside a building and located horizontally or
vertically besides the doorway.
This product is not designed to be used in applications where the door is continuously open and a
large temperature difference exists over the opening (for example +20oC and -20oC). In these cases
moisture can be entrained within the air stream and ice buildup will result.
They must not be installed on the outside of a building or built into a cabinet or recessed in any way.
Please complete the following details for your reference:
Date of Purchase
Place of Purchase
Serial Number
Proof of purchase is required to make a claim under warranty.
Thermoscreens Ltd
St. Mary’s Road
Nuneaton
Warwickshire
England
CV11 5AU
Email: [email protected] — http://www.thermoscreens.com
Tel: [phone] — Fax: [phone]
4. INTRODUCTION

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The following items are supplied in the box at delivery.
CS Cold Store Air Curtain
Note: End caps are supplied loose to be fitted during
installation
Ceiling Hanging Brackets (Horizontal
Units Only)
M12 x 30mm bolts & M12 washers
(x4) supplied
Door Switch
(Optional)
Horizontal Unit Wall Hanging Brackets
(Optional)
Wall Brackets and Fixing Bolts
(Vertical Units Only)
5. DELIVERY CONTENTS
NOTE: If any parts are missing or damaged contact your place of purchase.

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Fig 1
Fig 2a Fig 2b
The following tools are required for installation:
The air curtain is designed to be surface mounted inside a building and located horizontally over the
doorway. It must not be installed outside of the building.
7.1 Location
Mount the air curtain above the doorway, with:
 the discharge grille not more than 4m above floor level
 at least 100mm clearance above the air curtain, see Fig 1
 with the back edge of the hanging bracket 100mm from the doorway,
so the air curtain can swivel, see Fig 1, Figs 2a and 2b.
Beware of doorway top edges, structural beams, door opening/closure
devices, etc., which may interfere with the air stream and affect the location of
the unit.
6. TOOLS REQUIRED
7. INSTALLATION (HORIZONTAL UNITS)
NOTE: For the air curtain to work well the width of the open doorway should be less than the
effective width of the airstream, see Table 1.
 Flat blade screwdrivers
 Pozi head screwdrivers
 10mm and 19mm spanners
 Adjustable spanner
 Electric drill
 Equipment for working at height
 Appropriate lifting equipment
 Hacksaw
4000mm
100mm
AIR IN
AIR OUT
200
AIR IN
AIR OUT
200
340340 9595
20° max.
20° max.
6060

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Fig 3
Fig 4
7.2 Ceiling Suspension
M10 Threaded rods (not supplied) are used to suspend the unit from
the ceiling.
Suspend the unit from the ceiling as follows:
Step 1 Locate Ceiling Hanging Brackets to each side of the air
curtain as shown in Fig 3.
Step 2 Fit two M12 bolts from inside the air curtain to secure each
Ceiling Bracket. The top bolt is `fitted through a slot which
allows the air curtain to be tilted.
Step 3 Fit and secure M10 threaded hanging rods into holes on the
top face of each Ceiling Bracket.
Step 4 Secure all hanging rods (x4) to a suitable structure that can
support the weight of the unit (see section 3: Specifications
for weights).
Step 5 Tighten all fixing bolts until the air curtain is safely secured.
7.3 Wall Fixing
Step 1 Drill fixing points in the wall, referring to Appendix 1 for correct positioning. Using suitable
fixing bolts, fix both wall brackets to the wall.
Step 2 Locate Ceiling Hanging Brackets to each side of the air curtain as shown in Fig 3.
Step 3 Fit two M12 bolts from inside the air curtain to secure each Ceiling Bracket. The top bolt is
fitted through a slot which allows the air curtain to be tilted.
Step 4 Air curtain can be fitted directly to Ceiling Hanging Brackets using M10 nuts and bolts.
Alternatively, using M10 threaded hanging rods air curtain can be fitted to Ceiling Brackets
(see Appendix 1).
Step 5 Tighten all fixing bolts until the air curtain is safely secured to the wall.
NOTE: Use suitable wall fixing bolts (not supplied) to fix the unit to the wall, taking into account the
type of wall and the weight of the unit (see section 3: Specifications).
WARNING: It is the sole responsibility of the installer to ensure that the fixing locations and
suspension system used are suitable for the air curtain being installed.

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The CS air curtain is designed to be surface mounted inside a building and located vertically to the
left or right hand side nearest the doorway. It must not be installed outside of the building.
8.1 Location
Mount the air curtain to the side of the doorway, with:
the discharge grille not blocked by any obstacles within 1m of the unit
at least 100mm clearance above the air curtain to allow for servicing
at least 150mm clearance in front of the unit to allow for air to enter
Beware of doorway top edges, structural beams, door opening/closure devices, etc., which may
interfere with the air stream and affect the location of the unit. For vertical units, provision should be
made to protect the base of the unit from damage taking note of the above points.
For maximum effectiveness it is essential to ensure the top of the air curtain is slightly higher than the
opening height of the door. Obstructions such as door opening devices, structural beams etc. will reduce
the efficiency of the air curtain.
7.2 Floor Fixing
Before installing the air curtain obtain four suitable M10 fixing bolts, taking into account floor type
and unit weight (see section 3: Specifications)*. Rawlplug ® M10 Projecting Rawlbolt ® 44356 type
may be suitable. For dimensional details refer to the general assembly drawing, Appendix 1.
Determine and place the unit in position. A wall bracket is provided to secure the vertical air curtain
to the wall and this must be used. So that the wall bracket touches the wall, ensure the back of the
base plate touches against the wall, skirting board will need to be cut away if necessary.
Using the base plate as a template, mark the location of the
four holes, see Fig 5.
Using a suitable masonry drill bit correctly drill the four marked
out holes. Place M10 fixing bolts into each hole, ensuring all
bolts are upright.
Reposition the air curtain base plate over the projecting bolts.
Tighten each M10 nut as indicated in Fig 6. Ensure the
vertical unit is secure, level and square. It may be necessary
to pack under the base plate to ensure unit is vertical.
8. INSTALLATION (VERTICAL UNITS)
Fig 5
Fig 6

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Using a hacksaw carefully cut the projecting bolt flush with the
nut, ensuring the base plate is not damaged or marked in any
way.
Remove only one M10 nut and refit and resecure bolt with
a stainless steel M10 dome nut supplied. Repeat for each
of the other three projecting bolts one at a time.
WARNING: It is the sole responsibility of the installer to ensure that the fixing locations and
securing system used are suitable for the air curtain being installed.
Fig 3
Fig 4

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control box upper lid cover
Fig 7
2
1
Fig 6
9.1 How to access terminals
To gain access to the air curtain for connection and commissioning, remove air inlet grilles and
access panel as explained below.
First remove the plastic end caps at each end of the unit, if fitted, by pulling off to the side.
9.1.1 Remove air inlet grilles
Using a Pozi No 1 screwdriver, remove each grill with its filter.
To remove, insert screwdriver into the elongated hole at the bottom
corner of the grille (see Fig 5) and turn the screw one quarter of a turn
anticlockwise.
9.1.2 Remove bottom access panel and access terminals
Unfasten the securing screw at each end (see 1, Fig 6) and two
screws in the centre (CS 1500 and CS 2000 units).
To remove, slide the access panel (see 2, Fig 6) out forwards.
Remove the control box upper lid cover (see Fig 7).
Connect electrical supply from local isolator.
Refer to Appendix 2 and 3 for Wiring Diagrams.
9. ACCESS FOR ELECTRICAL CONNECTIONS
NOTE: All air curtain panels are protected in a plastic film. When access panels are removed this
film can be removed.
Fig 5

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Fig 8
Fig 9
EC speed potentiometer
Fig 10 image for illustration
purposes only
9.2 Door Switch Connection
For an optional door switch to be fitted, remove yellow link fitted to
terminals 1 & 2 (see Fig 8) and connect switch to these terminals
(see Appendix 1).
9.3 Fan Speed Selection
Set a suitable fan speed by adjusting the EC speed potentiometer
(see Fig 9) to suit outdoor environmental conditions and indoor
noise levels.
9.4 Timer Off-Delay Settings
The Timer Off-Delay Relay is factory set to 24 seconds with
time and adjustment ranges set to 0.4 and 1. The function
setting dial is set to R (OFF delay), as shown in Fig 10

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10.1 Verify system operation
To commission the system, verify the following conditions are met:
 All fans are working.
 The door switch (if fitted) correctly starts the fans when the doors open.
 The timer off-delay relay keeps the fans running for the specified time (factory default is 24
seconds).
 Fan speed changes in accordance to the speed dial fixed within the unit (as shown in Fig 9).
 There is no excessive mechanical noise coming from the fans.
Table 3 gives an indication of the maximum air curtain mounting height versus fan speed setting.
Please note, this is a rough guide only and the end user will need to assess the effectiveness of the
air curtain by adjusting the angle of the unit and the fan speed to produce the best air stream to suit
the particular situation.
Table 3
Fan Speed Setting
Maximum Unit Mounting
Height For Horizontal
Unit
(m)
Maximum Door Width For
Vertical Unit
(m)
10.0 4.2 3.0*
9.5 4.0 3.0*
9.0 3.8 3.0*
8.5 3.6 3.0*
8.0 3.4 3.0*
7.5 3.2 3.0
7.0 3.0 3.0
6.5 2.8 2.8
6.0 2.6 2.6
5.5 2.4 2.4
5.0 2.2 2.2
4.5 2.0 2.0
* Unit is capped to 3m as typical warmer air will become entrained in the air stream and natural
buoyancy will cause it to ‘lift’.
10. COMMISSIONING THE SYSTEM

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10.2 Instruct customer and hand over
Before leaving site, hand over the installation to the customer/end user or their representative.
Explain that any person operating the air curtain must be given supervision and instruction by the
person responsible for their safety, concerning the safe use of the unit and to understand any hazards
involved. Children and those with reduced physical, sensory or mental capabilities should not operate
the air curtain.
Recommend that the doorway should be closed whenever possible but that during times of high
traffic it will become an ‘open doorway’. The air curtain then serves an essential purpose of reducing
the energy needed to maintain the internal temperatures.
Explain that the inlet grilles must be cleaned regularly and the unit serviced at schedule intervals –
see section 12: Service & Maintenance.
Complete the following once commissioning is completed.
Installer signature
:
Customer
signature:
Installer name: Customer name:
Installer company: Customer company:
Date: Date:
11. SIGN OFF
NOTE: Leave these instructions with the customer/end user or their representative

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12.1 Fuses
In the event of an electrical fault check the fuses. The Control Box within the air curtain is fitted with a
5 x 20mm cartridge anti-surge 5A fuse. See Wiring Diagrams in Appendix 2 and 3.
The motors are also fitted with internal thermal overload protection that under normal operation
shouldn’t activate. If you find they have, refer to the Warranty section at the end of this set of
instructions.
13.2 Every 6 months
Clean and inspect the inside of the air curtain as follows:
Step 1 Remove plastic end caps at each end of the unit by pulling off to the side.
Step 2 Use a Pozi No.1 screwdriver to remove air inlet grilles by releasing the quarter-turn
fasteners at the bottom corners of each air inlet grille.
Step 3 Wipe clean to remove any build-up of dust and dirt within the air-curtain (inlet/outlet grilles,
fan impellers, housings and motors).
Step 4 Check within the unit to ensure all electrical connections and crimped terminals are tight
and that all cables are in good condition. Pay special attention to the edges of the
electrical boxes to ensure they aren’t damaged that would lead to water ingress.
Reconnect electrical supply and test to ensure correct operation (see Section 9: Commissioning).
12. FAULT CONDITIONS
13. SERVICE & MAINTENANCE
NOTE: Build-up of dirt on fan impellers can cause vibration, noise and excessive wear on the
motor bearings.
WARNING: Failure to adequately maintain the unit and provide a suitable cleaning schedule will
result in a loss of performance and reduced life expectancy of the air-curtain.
WARNING: Before servicing, isolate and disconnect the air curtain from the electrical power.
WARNING: The following servicing and maintenance must be carried out by a competent
electrician or a Thermoscreens appointed technician.

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All units are covered by a two year warranty.
If any problems are encountered, please contact your installer/supplier.
Failing this please contact the Thermoscreens warranty department.
Care has been taken in compiling these instructions to ensure they are correct. Thermoscreens Ltd.
disclaims all liability for damage resulting from any inaccuracies and/or deficiencies in this
documentation. Thermoscreens Ltd. retain the right to change the specifications stated in these
instructions.
Thermoscreens Ltd Email: [e-mail]
St. Mary’s Road Nuneaton Tel: + 44 (0) 24 7638 4646
Warwickshire England Fax: + 44 (0) 24 7638 8578
CV11 5AU www.thermoscreens.com
14. WARRANTY

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APPENDIX 1 — DIMENSIONS OF CS HORIZONTAL AIR CURTAIN

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APPENDIX 2 — DIMENSIONS OF CS VERTICAL AIR CURTAIN
WALL
BRACKET
ELECTRICAL
INLET FOR UNIT
CONTROL
CONNECTION
ENTERING
AIR
DISCHARGE
AIR
BOLT HOLES FOR M10
BOLTS – 4 OFF
Note. Left hand unit shown

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APPENDIX 3 — WIRING DIAGRAM CS AIR CURTAIN

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COLD STORE AIR CURTAIN - MASTER
N
FUSE 5A T
Electrical Supply
230V/1ph/50-60Hz
Door Switch
(Closed Contact = Run)
(Open Contact = Delay Off)
WIRING-CONTROL BOX
Orange (+10V)
Yellow (0-10V)
Black (Gnd)
Grey (Alarm)
White (Tacho)
1
2
3
4
5
6
7
8
Orange
Yellow
Black
Fan Speed
Potentiometer
Blue
N
L
1
2
3
4
5
B1
15
A1
A2 A3
18 16
Orange
Yellow
Black
Grey
White
Black
Brown
COLD STORE AIR CURTAIN - SLAVE
N
FUSE 5A T
Electrical Supply
230V/1ph/50-60Hz
WIRING-CONTROL BOX
Orange (+10V)
Yellow (0-10V)
Black (Gnd)
Grey (Alarm)
White (Tacho)
1
2
3
4
5
6
7
8
Orange
Yellow
Black
Fan Speed
Potentiometer
Blue
N
L
1
2
3
4
5
B1 15
A1
A2 A3
18 16
Orange
Yellow
Black
Grey
White
Black
Brown
Orange
Yellow
Black
Grey
White
Black
Brown
N
L
1
2
3
4
5
CONNECTION BOX
FAN MOTORS
CS 1000 - x2 motors
CS 1500 - x3 motors
CS 2000 - x4 motors
WARNING: Ensure all live phases
are the same on Master and Slave units
Orange
Yellow
Black
Grey
White
Black
Brown
N
L
1
2
3
4
5
CONNECTION BOX
FAN MOTORS
CS 1000 - x2 motors
CS 1500 - x3 motors
CS 2000 - x4 motors
Delay Off Timer Relay
Tele E1ZMQ10
Set RUN Time
Red
Brown
Purple
remove Red wire link if
fitting door switch
Brown
Delay Off Timer Relay
Tele E1ZMQ10
Set RUN Time
Red
Brown
Purple
Brown
CONNECTION BOX
CS 1500 and CS 2000
Brown
CONNECTION BOX
CS 1500 and CS 2000
3 core cable
5 cables in PVC sleeving
3 core cable
5 cables in PVC sleeving
Master/Slave
wire link
remove Red wire link on
Slave unit(s)
APPENDIX 4 — WIRING DIAGRAM CS MASTER/SLAVE

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EC DECLARATION OF CONFORMITY
as defined by the EC Council Directive on Machinery 2006/42/EC,
the Low Voltage Directive 2014/35/EC, Electromagnetic Compatibility Directive 2014/30/EU
and the Energy related Products Directive 2009/125/EC
Herewith we declare that the air movement equipment designated below, on the basis of its design
and construction in the form brought onto the market by us in accordance with the relevant safety,
health and performance requirements of the Machinery. If alterations are made to the machinery
without prior consultations with us, this declaration becomes invalid.
This declaration of conformity is issued under the sole responsibility of the manufacturer.
Designation of Equipment: AIR CURTAINS
Series Type:
Relevant EC Council
Directives:
CS 1000; CS 1500; CS 2000;
Motor Type: EC
the Machinery Directive (2006/42/EC)
the Low Voltage Directive (2014/35/EU)
the Electromagnetic Compatibility Directive (2014/30/EU)
the Energy related Products Directive (2009/125/EC)
The object of the declaration described above is in conformity with the relevant Union harmonisation
legislation: Machinery - BS EN ISO 12100:2010, BS EN ISO 13857:2008
LVD - EN 60335-1:2012+A13:2017, EN 60335-2-30:2009+A11:2012
EMC - EN 61000-6-1:2007, EN 61000-6-3:2007+A1:2011,
EN 61000-3-2:2014+A2:2009, EN 61000-3-3:2013
ErP - Commission Regulation (EU) No.327/2011,
ISO 5801:2017, ISO 12759:2010
Basis of Self Attestation: Quality Assurance to BS EN ISO 9001:2015
B.S.I. Registered Firm Certificate Number FM 02234
SGS Test Report ELS150049/2/R/DC/11;
SGS Test Report EMC150049/1
CE Marking Association Test Report 6799 and 6800
Responsible Person: Mr. P.Humphries, Director, Thermoscreens Ltd.
Date: 1st April 2020
Signed:
15. DECLARATION OF CONFORMITY
Thermoscreens Ltd.
St. Mary’s Road
Nuneaton
Warwickshire
CV11 5AU
United Kingdom
Telephone: [phone]
www.thermoscreens.com