Thermoscreens Designer PHV Series Manual

T9901090-5-1 UK (v9) Page | 1
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
English
PHV Series Designer.
Horizontal and Vertical

T9901090-5-1 UK (v9) Page | 2
1.CONTENTS......................................................................................................................................2
2.ELECTRICAL SAFETY.....................................................................................................................3
3SPECIFICATIONS............................................................................................................................4
4.INTRODUCTION ..............................................................................................................................5
5.DELIVERY CONTENTS...................................................................................................................6
6.TOOLS REQUIRED..........................................................................................................................6
7.INSTALLATION ................................................................................................................................7
8.LPHW MODELS .............................................................................................................................10
9.REMOTE CONTROL INSTALLATION...........................................................................................11
10.REMOTE CONTROL SETTINGS...................................................................................................11
11.EXTERNAL CONTROLS................................................................................................................12
12.MULTIPLE AIR CURTAIN SYSTEMS............................................................................................14
13.SYSTEM CONFIGURATION..........................................................................................................15
14.FAN SPEED SELECTION..............................................................................................................16
15.REMOTE CONTROL OPERATION................................................................................................17
16.COMMISSIONING THE SYSTEM..................................................................................................18
17.SIGN OFF.......................................................................................................................................18
18.FAULT CONDITIONS.....................................................................................................................19
19.SERVICE & MAINTENANCE .........................................................................................................20
20.WARRANTY ...................................................................................................................................21
APPENDIX 1A — DIMENSIONS OF HORIZONTAL AIR CURTAIN (WALL MOUNTED).......................22
APPENDIX 1B — DIMENSIONS OF HORIZONTAL AIR CURTAIN (CEILING MOUNTED) ..................23
APPENDIX 2 — DIMENSIONS OF VERTICAL AIR CURTAIN................................................................24
APPENDIX 3A — WIRING DIAGRAM PHVD1000E and PHVD1000E V*...............................................25
APPENDIX 3B — WIRING DIAGRAM PHVD1500E and PHVD1500E V................................................26
APPENDIX 3C — WIRING DIAGRAM PHVD2000E and PHVD2000E V................................................27
APPENDIX 3D — WIRING DIAGRAM PHVD1000W, PHVD1500W, PHVD2000W, PHVD1000W V*,
PHVD1500W V and PHVD2000W V ........................................................................................................28
APPENDIX 3E — WIRING DIAGRAM PHVD1000A, PHVD1500A, PHVD2000A, PHVD1000A V*,
PHVD1500A V and PHVD2000A V ..........................................................................................................29
21.DECLARATION OF CONFORMITY...............................................................................................30
1. CONTENTS
Page

T9901090-5-1 UK (v9) Page | 3
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 or 3 phase local isolator having a contact
separation of at least 3mm on all 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. Electrical
connection entry point for horizontal Designer PHV air curtain
is from the left hand side of the air curtain, refer Appendix 1.
The adjacent picture details optional electrical connection
entry points for vertical Designer PHV models. Power and
control cables for vertical units should be separately threaded
up via the cable trunking provided (see insert).
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.
Models operating on a 3 phase electrical supply - see section 3: Specifications - require a
neutral connection (3N~).
A 25mm size cable gland or conduit connector of IP21 rating or above should be used for the
Electrical Supply into the air curtain.
See Wiring Diagrams for connecting electrical supply and control cables to the air curtain. The
air curtain must be earthed.
2. ELECTRICAL SAFETY
Optional Electrical
Connection Entr
y
Points

T9901090-5-1 UK (v9) Page | 4
Air Curtain Electrical Supply
(V/ph/Hz)
Rated
Power
Input (kW)
Current
per
phase (A)
Heat Output
[Low/High]
(kW)
Weight
(kg)
PHVD1000A 230/1/50 0.30 1.5 - 54
PHVD1500A, PHVD1500A V 230/1/50 0.40 1.8 - 67
PHVD2000A, PHVD2000A V 230/1/50 0.60 2.9 - 93
PHVD2500A V
(Stacked Unit)
Top air curtain 230/1/50 0.30 1.5 - 121
Bottom air
curtain 230/1/50 0.40 1.8 -
PHVD3000A V
(Stacked Unit)
Top air curtain 230/1/50 0.30 1.5 - 147
Bottom air
curtain 230/1/50 0.60 2.9 -
PHVD1000W 230/1/50 0.30 1.3 6.0/12.0 61
PHVD1500W, PHVD1500W V 230/1/50 0.40 1.8 9.0/18.0 82
PHVD2000W, PHVD2000W V 230/1/50 0.60 2.7 12.0/24.0 107
PHVD2500W V
(Stacked Unit)
Top air curtain 230/1/50 0.30 1.3 15/30 143
Bottom air
curtain 230/1/50 0.40 1.8
PHVD3000W V
(Stacked Unit)
Top air curtain 230/1/50 0.30 1.3 18/36 168
Bottom air
curtain 230/1/50 0.60 2.7
PHVD1000E 400/3/50 12.30 18.7 6.0/12.0 57
PHVD1500E, PHVD1500E V 400/3/50 18.40 27.9 9.0/18.0 71
PHVD2000E, PHVD2000E V 400/3/50 24.60 37.5 12.0/24.0 99
PHVD2500E V
(Stacked Unit)
Top air curtain 400/3/50 12.30 18.7 15/30 128
Bottom air
curtain 400/3/50 18.40 27.9
PHVD3000E V
(Stacked Unit)
Top air curtain 400/3/50 12.30 18.7 18/36 156
Bottom air
curtain 400/3/50 24.60 37.5
3SPECIFICATIONS
Table 1

T9901090-5-1 UK (v9) Page | 5
Established in the 1960s, Thermoscreens is a leading air curtain manufacturer that exports to over 60
countries worldwide.
As with all our products, the Designer PHV range of air curtains is designed with energy efficiency in mind.
Designer PHV models suffixed E, W or A are designed to be surface mounted inside a building, located
horizontally over a doorway or vertical close to door opening.
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: sale[email protected] — http://www.thermoscreens.com
Tel: [phone] — Fax: [phone]
4. INTRODUCTION

T9901090-5-1 UK (v9) Page | 6
The following items are supplied in the box at delivery.
The following tools are required for installation:
6. TOOLS REQUIRED
5. DELIVERY CONTENTS
NOTE: If any parts are missing or damaged contact your place of purchase.
Designer PHV Air Curtain Ecopower Remote Control
Horizontal or vertical plus fittings
Supplied with 6m
RJ Control Cable
Outdoor Air Thermostat
(Optional – supplied by Installer)
Accessories
Spare M4 socket button screws
2.5mm hexagon key wrench
M10 stainless steel dome nuts
(vertical unit)
M8 stainless steel dome nuts
(horizontal unit)
Fixing kits (if applicable)
RJ extension lead (vertical unit)
Used for simple weather
compensation control
(disables heating on a warmer day)
Flat blade screwdrivers
Pozi head screwdrivers
10mm spanner
Adjustable spanner

Electric drill
Ladders
Appropriate lifting equipment

T9901090-5-1 UK (v9) Page | 7
Fig 1
Fig 2
The Designer PHV air curtain should be surface mounted horizontally over a doorway and not exposed
to the external environment or moist conditions. It should not be built-in or recessed in any way.
7.1 Horizontal Installation
Ensure that the unit is mounted within its height specification of 1.8m to 3.5m maximum (from floor
level to the underside of the unit) with the air discharge grille positioned nearest to the door.
The air curtain should be located as close to the door opening as possible for best
performance, obstructions such as door opening devices, structural beams etc. will reduce the
efficiency of the air curtain.
There must be at least 200mm clearance at the air inlet for air to enter the unit, see Appendix 1a
and Appendix 1b.
7.1.1 Wall or Ceiling Fixing
Using the 2.5mm hexagon key wrench supplied, unfasten
and remove casing screws from the Designer PHV unit and
carefully detach the back and inlet grille panels. All screws
should be kept safe as they will be required later in the
installation.
Designer PHV horizontal air curtains are supplied with two
stainless steel wall or ceiling brackets fitted to each end of
the unit. Refer to Appendix 1A and Appendix 1B for
mounting details. Drill the wall accordingly and secure the
unit above the door. Ensure all fixings are correctly fitted
and tightened.
7. INSTALLATION
NOTE: Use suitable fixing bolts (not supplied) to fix the
unit to the wall or ceiling, taking into account the
type of wall/ceiling and the weight of the unit (see
section 3: Specifications).
NOTE: For the air curtain to work well the width of the open doorway should be less than the
length of the air curtain.
ATTENTION: For stainless steel units the inlet grille and back panels are coated in an easy
to peel protective film. Please ensure all the protective film is removed before
the air curtain is put into service. For clarity, all photographs in the instructions
show the stainless steel sheet with the protective film already removed.

T9901090-5-1 UK (v9) Page | 8
Fig 3
7.2 Vertical Installation
Prior to commencing any vertical installation it is essential to ensure the correct handing Designer
PHV unit(s) have been selected.
The air curtain is located close to the door opening with the base plate touching the wall (see Fig 4)
and with the air discharge grille positioned nearest to the door (see “Handing Guide” in Appendix 2).
Maximum doorway width = 2m per air curtain. For maximum effectiveness it is essential to ensure the
height 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. There must be
at least 200mm clearance at the air inlet for air to enter the unit, see Appendix 2.
7.2.1 Floor Fixing
Using the 2.5mm hexagon key wrench supplied, unfasten and remove casing screws from the Designer
PHV unit and carefully detach the back and inlet grille panels. All screws should be kept safe as they
will be required later in the installation.
Before installing the Designer PHV unit obtain four suitable 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, see Appendix 2.
Designer PHV vertical air curtains are supplied with the base plate fitted. Determine and place the unit
at its most favourable position. A wall bracket must be fitted to the top of the unit for PHVD2000V and
PHVD2500V air curtains to tether the top of the unit to the wall. In order to use the wall bracket
supplied ensure the back of the base plate touches against the wall.
T6811940 T6811950
For multiple air curtains joined
together over a doorway an
additional wall bracket
(T6811940) or ceiling bracket
(T6811950) must be fitted at each
joining point, see Fig 3. Back and
inlet grille panels should only be
fitted after all functional tests
have been completed and verified
(See Commissioning).

T9901090-5-1 UK (v9) Page | 9
Fig 4
Fig 5
Fig 6
Fig 7
Using the base plate as a template, mark the location of the
four holes, as indicated in the adjacent picture.
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 the adjacent
picture. Ensure the vertical unit is secure, level and square.
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 secure bolt with a
stainless steel M10 dome nut supplied. Repeat for each of
the other three projecting bolts one at a time.
Back and inlet grille panels should only be fitted after all
functional tests have been completed and verified (See
Commissioning).
Base plate
touchin
g
wall

T9901090-5-1 UK (v9) Page | 10
Fig 8
Fig 9
Fig 10
7.2.2 Stacking Air Curtain
Only a single 1.0m stacking vertical air curtain should be
mounted on top of another vertical unit. The maximum
overall height for stacking is 2.78m (1.5m + 1.0m vertical).
All units higher than 1.5m must be secured with a wall
bracket at the top of the stack.
Using fixing kit components supplied the vertical stack
frames are joined together using M8 x 25mm hexagonal
bolts and M8 nyloc nuts (see Fig 8).
For the design of the water pipework system and pump, water flow rates and pressure drops for
maximum heat output of the air curtain are given in Table 2 below.
For LPHW models ensure suitable water mains isolation valves, as Fig 9, are fitted to both the flow and
return pipework
Flow and return pipework
Flow and return pipework
Air Curtain 2 row coil (based on 82/71°C) 3 row coil (based on 60/40°C)
Water Flow Rate
(l/min) Water Pressure Drop (kPa) Water Flow Rate (l/min) Water Pressure Drop(kPa)
PHVD1000W 15.6 4.9 8.6 9.8
PHVD1500W 23.4 9.3 12.9 10.0
PHVD2000W 31.2 14.9 17.1 18.4
8. LPHW MODELS
ATTENTION: For stainless steel units the inlet grille and
back panels are coated in an easy to peel protective film.
Please ensure all the protective film is removed before the air
curtain is put into service. For clarity, all photographs in the
instructions show the stainless steel sheet with the protective
film alread
y
removed.
Table 2
NOTE: Water flow rates and pressure drops at different water temperatures can be calculated using the
Thermoscreens coil calculation programme. Visit the Thermoscreens website for details.
Flow
Return

T9901090-5-1 UK (v9) Page | 11
Mount the Ecopower remote control in a convenient position directly to the wall or onto a switch box.
9.1 Wall mounting
Step 1 Using a screwdriver undo the screw on the top of the remote control
case and pull the back case away (see Fig 11).
Step 2 Feed one end of the RJ control cable through the back case, secure it,
then screw the back case to the wall using suitable fixings (not
supplied).
Step 3 Connect the RJ plug to the RJ socket on the PCB in the remote control.
Step 4 Refit the front case.
9.2 Switch box mounting
Step 1 Using a screwdriver undo the screw on the top of the remote control case and pull the back
case away (see Fig 11).
Step 2 Feed one end of the RJ control cable through the switch box, feed and
secure the RJ control cable through the back case and secure back
case to switch box using 2 mounting screws (not supplied) (see Fig 12).
Step 3 Connect the RJ plug to the RJ socket on the PCB in the remote control.
Step 4 Refit the front case.
On the back of the PCB inside the Ecopower Remote Control you will find four DIP switches that
provide the following optional features, see Table 3:
DIP Feature Explanation Default Notes
1 Reset on power-up On restoring power after an
electrical interruption all Remote
Control settings are retained
ON WARNING! – Fans start
on their own after power
is restored
2 Stop fan on cold Fans are switched off when
heating level is achieved (AUTO
mode only)
OFF
3 Never blow cold Air curtain always heats in
AUTO mode OFF Will not go to ambient mode
4 Room air
temperature control Enables the room air sensor in the Remote Control OFF Disables all other temperature sensors
10. REMOTE CONTROL SETTINGS
9. REMOTE CONTROL INSTALLATION
NOTE: For optional remote control settings see Section 10.
Fig 11
Fig 12
Table 3

T9901090-5-1 UK (v9) Page | 12
11.1 Remote switch contacts IN0, IN1
Terminals IN0 and IN1 on the Ecopower PCB inside the air
curtain can be used to provide different control strategies
using remote volt-free contacts (see Fig 13). This could be to
provide remote On/Off from a timer or BMS Digital/Output
contact, to work with a door switch or for simple weather
compensation control to disable heating when outdoor air
temperatures become warmer. Table 4 describes the
different functions:
Function IN0 Notes
Remote
On/Off
(INHIBIT)
Unit operates
normally in
MANUAL Mode or
AUTO Mode
from the Remote
Control
Unit switches off
after 15s, with fan
run-on at Medium
fan speed if
DIP 2 = OFF
Use the Remote Control to set up unit and
then hide it away if required. *
On/Off is then done via IN0 using a remote
volt-free contact.
Function IN1 DIP 4 IN0 Notes
Door
Switch
Control
After 30s the
heating is disabled
and the fan goes to
low speed
Unit operates
normally in
MANUAL Mode or
AUTO Mode
from the Remote
Control
ON


Door Open:-
Normal Control
Door Closed:-
Heating Off
Low Fan Speed
Summer
Winter
Unit operates
normally in
MANUAL Mode or
AUTO Mode
from the Remote
Control
COLD DAY
Heating is disabled
straight away,
Fan speeds
operate normally
from the Remote
Control
WARM DAY
OFF
Simple weather
compensation control
using an outdoor air
thermostat with volt free
contacts
(see Section 11.3)
11. EXTERNAL CONTROLS
Fig 13
Table 4
WARNING: Do not apply any voltage to terminals IN0 and IN1 as this will damage the Ecopower
PCB inside the air curtain.
NOTE: Wire volt-free, remote switch contacts to 2-way screw terminals IN0 and IN1 using 2-core
cable.
* NOTE: The Ecopower Remote Control must stay plugged-in for the air curtain to keep working.
An optional plug-in EEPROM is available from Thermoscreens so the Remote Control can be un-
plugged and the air curtain stay working. Visit the Thermoscreens website for details.

T9901090-5-1 UK (v9) Page | 13
11.2 Overheat safety cut-out indication
For electric heated air curtains the Ecopower
PCB includes a fault indication signal for if the
overheat safety cut-out on the electric heater
operates.
Volt free changeover contacts (6A 250VAC
30VDC) can be wired via the 3-way screw
terminal “HEALTHY” (see Fig 14).
Refer to Section 18.1: Overheat Safety cut
out, for how to reset a overheat safety cut-out
situation.
11.3 Weather compensation control (Summer/Winter)
To save heating energy on warmer days a simple weather
compensation (Summer/Winter) heat control strategy can
be used. Fit an outdoor air thermostat with volt-free
contacts (supplied by the installer) to a north facing wall.
Use a 2-core cable to connect the outdoor air thermostat to
2-way terminal IN1 on the Ecopower PCB (see Fig 15)
On the Ecopower PCB, set DIP 4 to OFF as per Table 4,
(see Section 11.1: Remote switch contacts IN0, IN1).
WARNING: Do not apply any voltage to terminal IN1 as this will damage the Ecopower PCB.
NOTE: To promote increased energy saving a more advanced weather compensation control strategy is available from
Thermoscreens. Using a heating curve, the discharge air temperature of the airstream coming from the air curtain
is controlled a
g
ainst the outside air tem
p
erature. Visit the Thermoscreens website for details.
C
NC
A
LARM!
NO
HEALTHY
Fig 14
Fig 15
Switch Contact Closed = Heating Enabled (cold day)
Switch Contact Open = Heating Disabled (warm day)
Outdoor Air
Thermosta
t

T9901090-5-1 UK (v9) Page | 14
To Master/Slave two or more air curtains together, or if there are two air curtains in a vertical stack,
the remote control is plugged into the first unit (the Master) and a RJ extension lead then connected
from the Master to the Slave unit(s).
Horizontal application air curtains may be connected as indicated below. Thermoscreens 3m RJ
extension leads are available and should be ordered separately.
For horizontal Master/Slave configuration an independent mains supply as per Table 1 must be
supplied to each air curtain.
Electrical Mains
Supply
RJ Cable
Electrical Mains
Supply Electrical Mains Supply
RJ Cable
Services entry
either from bottom
or side
12. MULTIPLE AIR CURTAIN SYSTEMS
Fig 16
maximum 8 units
The maximum height for a vertical
stack is 2.78m (1.5m + 1.0m vertical).
An RJ extension lead and in-line RJ
connector is supplied with vertical stack
units.
Ensure all incoming electrical mains
supply cables are suitable for the total
power rating of the air curtain stack
(see D2500).
Fig 17

T9901090-5-1 UK (v9) Page | 15
13.1 Optional features
DIP switches on the air curtain Ecopower PCB (see Fig 18) provide
the following optional features, as explained below:
Fan heat interlock
Disable fan run-on
Thermostat master (for master/slave installations)
Weather compensation heat control (Summer/Winter)
Door switch control
Feature
DIP setting Default Notes
Fan heat interlock
Allows fan speed to govern heat
output on electric heated units.
If low or medium fan speed is
selected, a lower heat output
results. High heat operates only
on high fan speed.
DIP 1
ON
Heat output is
governed by fan
speed.
This feature is only used with
electric heated air curtains to
limit very high air
temperatures.
Set DIP1 to OFF if unit is
water heated or ambient.
Disable fan run-on
The 2 minute fan run-on after
switch off is enabled or disabled
on electric heated air curtains.
DIP 2
OFF
Fan run-on at
medium speed
enabled.
Must only be used for water
heated or ambient air
curtains. Each air curtain
must have DIP2 set to ON for
no fan run-on.
Thermostat master
For master/slave installations.
Only the air sensor in the
thermostat master air curtain is
used to measure air temperature.
Set DIP 3 to ON in the air curtain
that will be the master unit.
DIP 3
OFF
Air curtains in
master/slave
systems all act
independently.
Air sensor thermistors in all
slave air curtains will be
ignored.
Stops some units blowing
cold air and others blowing
warm air in master/slave
systems on larger doorways.
Weather compensation control
or Door switch control
Simple weather compensation
control to save heating energy.
or
Door switch control.
DIP 4
OFF
IN1 Weather
compensation
ON
IN1 Door switch
See section 11.1 Remote
Switch Contacts IN0 and IN1
for details
Weather compensation
control is the same as
Summer/Winter control
13. SYSTEM CONFIGURATION
Fig 18
WARNING: Isolate and disconnect air curtain from the power source before making any changes.
ON
1234
ON
1234
ON
1234
NOTE: A range of advanced factory fitted and plug-in control options are available from Thermoscreens to
enhance the performance of the Ecopower PCB controller inside the air curtain. These include
advanced weather compensation control using a heating curve, outlet air temperature control,
ECObus®Modbus BMS control, modulating heater outputs and EEPROMs for non-standard control
strategies. Visit the Thermoscreens website for details.
NOTE: Black rectangle is moveable head of DIP switch.
ON
1234

T9901090-5-1 UK (v9) Page | 16
Factory settings for the 3 fan speeds are shown in Table 5 below:
(refer also to wiring diagrams in Appendix 3)
Fan Speed
Maximum air
velocity at
outlet grille
(m/s)
Maximum air curtain
mounting height
(m)
Sound Pressure
Level of air
curtain
[dB(A) at 3m]
Air Volume
Flow Rate
(m3/h)
[for A]
HIGH
(black wire) 11.0 3.5
PHVD1000 - 59
PHVD1500 - 60
PHVD2000 - 61
2050
3645
4145
MEDIUM
(blue wire) – –
PHVD1000 - 57
PHVD1500 - 57
PHVD2000 - 59
1840
3455
3720
LOW
(red wire) – –
PHVD1000 - 56
PHVD1500 - 53
PHVD2000 - 58
1720
3345
3480
Sound pressure levels dB(A) at 3m distance are for a single air curtain mounted at its maximum mounting height, operating in
a room with average acoustic characteristics as defined in CIBSE Guide B5 (reverberation time 0.7s at 1kHz) and a room size
equivalent to 8 air changes per hour (ac/h). Care needs to be taken when selecting air curtains for an installation as noise
levels can be several dB higher if the mounting height is reduced, if the room is more ‘live’ (i.e. hard surfaces, no furnishings or
absorbent materials), if the room is smaller than 8 ac/h equivalent or a combination of these factors. Noise levels will also
increase if more than one air curtain is installed at the same doorway (e.g. +3dB(A) for 2 equal point sources: direct field).
14. FAN SPEED SELECTION
Table 5

T9901090-5-1 UK (v9) Page | 17
2
1
3
4
5
6
7Heating level scale
15.1 Ecopower Remote Control
Use the Remote Control to operate the air curtain as follows:
1 On/Off
Turns the air curtain On or Off.
2 Manual/Automatic
Switches between Manual and Automatic modes.
The Auto On indicator LED is lit for "Auto Mode" and unlit for "Manual Mode".
3 & 4 Heating level controls
Manual mode
Select heating level from zero, to half heat, to full heat by stepping up or down with the heating level
controls. The heating level scale shows the level selected.
Automatic mode
Heat output is controlled automatically according to:
Inlet air temperature, or
Room air temperature
This is dependent on the settings made in Section 10: Remote Control Settings (DIP switch 4).
5, 6 & 7 Fan speed
Switch fan speed between Low, Medium and High respectively. The appropriate LED illuminates.
15. REMOTE CONTROL OPERATION
NOTE: If an electric heated air curtain is heating when switched off the fan will run-on for
approximately 2 minutes to dissipate excess heat.

T9901090-5-1 UK (v9) Page | 18
16.1 Verify system operation
To commission the system, verify the following conditions are met:
All fans are working.
Fans operate at Low, Medium and High speeds.
There is no excessive mechanical noise coming from the fans.
When heating is selected, the air stream from the discharge grille warms up across the whole
length of the air curtain.
When set to manual with fans set to high speed, heating increases as higher heat is selected.
Warm air reaches across the doorway with door open or closed.
Ecopower Remote Control operates correctly in both manual and auto modes.
16.2 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
pedestrian use it will become an ‘open doorway’. The air curtain then serves an essential purpose by
saving energy and providing comfort to occupants.
Explain that the inlet grilles and air filters (if fitted) must be cleaned regularly and the unit serviced at
schedule intervals – see section 19: Service & Maintenance.
Complete the following once commissioning is completed:
Installer signature
Customer signature
Installer name
Customer name
Installer company
Customer company
Date
Date
17. SIGN OFF
16. COMMISSIONING THE SYSTEM
NOTE: Leave these instructions with the customer/end user or their representative!!

T9901090-5-1 UK (v9) Page | 19
18.1 Overheat Safety cut-out
An overheat fault in electric heated units may cause the overheat safety cut-out(s) to operate.
This is indicated by flashing LEDs on the Remote Control and a red status LED on the Ecopower PCB
inside the air curtain.
Before resetting ensure there is adequate air flow from the air curtain and the unit has been
commissioned as per section 16.
To reset a overheat safety cut-out:
Step 1 Switch off the electrical supply to the air curtain.
Step 2 Allow time for the air curtain to cool down, typically 10 minutes.
Step 3 Switch on the electrical supply to the air curtain.
Step 4 Press the Auto button on the Ecopower remote control 4 times.
Air curtain heaters will then operate and after 30 seconds the LEDs on the remote control will stop
flashing and the status LED on the Ecopower PCB in the air curtain will flash green.
18.2 Fuses
In the event of an electrical fault internal electrical fuses may operate.
There are two internal fuses located on the Ecopower PCB inside the air curtain:
Fuse 6.3A(T) supplies the fan motors within the air curtain
Fuse 100mA(F) controls the circuitry of the Ecopower PCB
18.3 Ecopower PCB status indication
There is a status LED on the Ecopower PCB inside the air curtain (See LED shown on Wiring
Diagrams in the Appendix).
This indicates the status of the Ecopower Control system as follows:
1. LED flashing green – operation normal
2. LED flashing red – low supply voltage, remote control not plugged in or RJ cable fault
3. LED permanently red – overheat safety cut-out(s) open circuit from an overheat situation
(see Section 18: Fault Conditions for how to reset)
18. FAULT CONDITIONS

T9901090-5-1 UK (v9) Page | 20
19.1 Every week
Turn off the air curtain to prevent entry of dust then clean the face of the air inlet grilles using a
vacuum cleaner with an extension tube and brush.
19.2 Every 3 months
Clean and inspect the inside of the air curtain as follows:
Step 1 Remove the back and inlet grille panels.
Step 2 Clean and remove any build-up of dust and dirt within the air-curtain (back/inlet grille
panels, electric heaters (if fitted), fan impellers, housings and motors) using a vacuum
cleaner and soft brush.
Step 3 Check within the unit to ensure all electrical connections and crimped terminals are tight
and that all cables are in good condition.
Refit air inlet grilles after servicing. Reconnect electrical supply and test to ensure correct operation
(see Section 16: Commissioning).
19. SERVICE & MAINTENANCE
NOTE: Weekly maintenance can be carried out by the Cleaner or Janitor from floor level.
NOTE: Build-up of dirt on fan impellers can cause vibration, noise and excessive wear on the
motor bearings.
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.
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 and
possible overheating and fire risk with electric heated units.