Thermoscreens HX Series Manual

Page | 1
INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
English
HX Series.
Surface Mounted Range
T9901096-3-4 CAN-USA-ENG (v9)

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1. CONTENTS......................................................................................................................................2
2. IMPORTANT INSTRUCTIONS.........................................................................................................3
3. ELECTRICAL SAFETY.....................................................................................................................4
4. SPECIFICATIONS............................................................................................................................4
5. INTRODUCTION ..............................................................................................................................5
6. DELIVERY CONTENTS ...................................................................................................................6
7. TOOLS REQUIRED..........................................................................................................................6
8. INSTALLATION ................................................................................................................................7
9. ACCESS FOR ELECTRICAL CONNECTION..................................................................................9
10. REMOTE CONTROL INSTALLATION...........................................................................................10
11. REMOTE CONTROL SETTINGS...................................................................................................10
12. EXTERNAL CONTROLS................................................................................................................11
13. MULTIPLE AIR CURTAIN SYSTEMS............................................................................................12
14. SYSTEM CONFIGURATION..........................................................................................................13
15. FAN SPEED SELECTION..............................................................................................................14
16. REMOTE CONTROL OPERATION................................................................................................15
17. COMMISSIONING THE SYSTEM..................................................................................................16
18. SIGN OFF.......................................................................................................................................16
19. FAULT CONDITIONS.....................................................................................................................17
20. SERVICE & MAINTENANCE .........................................................................................................18
21. WARRANTY ...................................................................................................................................19
APPENDIX 1 — Dimensions of HX Surface Mounted Air Curtain............................................................20
APPENDIX 2A — WIRING DIAGRAM HX1000E 208V..........................................................................21
APPENDIX 2B — WIRING DIAGRAM HX1500E 208V..........................................................................22
APPENDIX 2C — WIRING DIAGRAM HX2000E 208V .........................................................................23
APPENDIX 2D — WIRING DIAGRAM HX1000E 480V or 600V............................................................24
APPENDIX 2E — WIRING DIAGRAM HX1500E 480V or 600V............................................................25
APPENDIX 2F — WIRING DIAGRAM HX2000E 480V or 600V............................................................26
APPENDIX 2G — WIRING DIAGRAM HX1000W, HX1500W and HX2000W........................................27
APPENDIX 2H — WIRING DIAGRAM HX1000A, HX1500A and HX2000A...........................................28
1. CONTENTS
Page

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When using electrical appliances, basic precautions should always be followed to reduce the risk of
fire, electric shock and injury to persons, including the following:
1. Read all instructions before installing or using this air curtain heater.
2. This air curtain heater can be hot when in use. To avoid burns, do not let bare skin touch hot
surfaces. To avoid a fire situation keep combustible materials, such as paper, curtains, blinds,
clothing, etc. at least 4 feet (1.2m) from any part of the air curtain heater; front, sides and rear
and away from the warm air discharge.
3. Extreme caution is necessary when the air curtain heater is used by or near children or
invalids and whenever the unit is left operating and unattended.
4. Do not operate the air curtain heater if it malfunctions. Disconnect electrical power at service
panel and have unit inspected by a reputable electrician before reusing.
5. Do not install or use the air curtain heater outdoors.
6. To disconnect the air curtain heater, turn off at the remote control (see Section 16. Remote
Control Operation) and turn off electrical power to air curtain heater circuit at main disconnect
panel (or operate local disconnect switch if provided)
7. Do not insert or allow foreign objects to enter any air inlet or discharge opening as this may
cause an electric shock or fire, or damage the air curtain heater.
8. To prevent a possible fire, do not block air inlets or discharge openings in any manner.
9. An air curtain heater has hot and arcing or sparking parts inside. Do not install and use it in
areas where gasoline, paint or flammable vapors or liquids are used or stored.
10. Use this air curtain heater only as described in this instruction manual. Any other use not
recommended by the manufacturer may cause fire, electric shock or injury to persons.
11. If this air curtain heater is electric heated it has an overheat safety cut-out system which will
operate if temperatures at the electric heating elements get excessive and prevent the electric
heating elements functioning. This is indicated by flashing LEDs on the Remote Control. If this
happens refer to Section 19.1 Overheat Safety cut-out for further instructions.
12. “SAVE THESE INSTRUCTIONS”
Conforms to: CAN CSA-C22.2 no.46-13 & UL 2021(Ed.3): 2013
2. IMPORTANT INSTRUCTIONS

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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 national and local wiring regulations and/or local statutory
regulations. “Danger: Disconnect electrical supply before servicing”
A 1 phase or 3 phase local Disconnect, provided by others in accordance with Electrical Code
and Local Electrical Codes, with a contact separation of at least 3mm (1/8in) on all poles,
must be fitted in the electrical supply to the air curtain and located in an accessible position
adjacent to the unit. Units with dual electrical supplies (see * in Table below) must have a
common disconnect to switch off both supplies simultaneously.
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 4. Specifications.
Models operating on a 480V or 600V, 3 phase electrical supply - see Section 4.
Specifications, Electrical Supply *– also need a separate 208V to 240V electrical supply to
operate fan motors and controls.
A 25mm / 1in 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 grounded.
Air Curtain
Model No
Electrical
Supply
(V/ph/Hz)
Rated
Electrical
Power Input
(kW)
Rated
Current
per phase
(A)
Heat Output
[Low/High]
(kW)
Effective
Width of
Airstream
(m/ in)
Weight
(kg / lbs)
HX1000A 208…240/1/60 0.35 1.4 – 1.10 / 43 45 / 99
HX1500A 208…240/1/60 0.5 2.0 – 1.63 / 64 66 / 146
HX2000A 208…240/1/60 0.7 2.8 – 2.15 / 85 80 / 176
HX1000W 208…240/1/60 0.35 1.4 6.0 / 12.0 1.10 / 43 52 / 115
HX1500W 208…240/1/60 0.5 2.0 9.0 / 18.0 1.63 / 64 75 / 165
HX2000W 208…240/1/60 0.7 2.8 12.0 / 24.0 2.15 / 85 93 / 205
HX1000E (208V) 208/3/60 10.55 29.7 5.1 / 10.2 1.10 / 43 46 / 101
HX1500E (208V) 208/3/60 15.80 44.5 10.2 / 15.3 1.63 / 64 67 / 148
HX2000E (208V) 208/3/60 21.10 59.4 10.2 / 20.4 2.15 / 85 84 / 185
HX1000E (480V) 480/3/60 *
+ 208…240/1/60 12 0.35 14.5 1.4 6.0 / 12.0 1.10 / 43 46 / 101
HX1500E (480V) 480/3/60 *
+ 208…240/1/60 18 0.5 21.7 2.0 12.0 / 18.0 1.63 / 64 67 / 148
HX2000E (480V) 480/3/60 *
+ 208…240/1/60 24 0.7 28.9 2.8 12.0 / 24.0 2.15 / 85 84 / 185
HX1000E (600V) 600/3/60 *
+ 208…240/1/60 12 0.35 11.6 1.4 6.0 / 12.0 1.10 / 43 46 / 101
HX1500E (600V) 600/3/60 *
+ 208…240/1/60 18 0.5 17.3 2.0 12.0 / 18.0 1.63 / 64 67 / 148
HX2000E (600V) 600/3/60 *
+ 208…240/1/60 24 0.7 23.1 2.8 12.0 / 24.0 2.15 / 85 84 / 185
4. SPECIFICATIONS
3. ELECTRICAL SAFETY
Table 1

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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 HX range of air curtains is designed with energy efficiency in mind.
HX models suffixed E, W or A are designed to be surface mounted inside a building and located
horizontally over a doorway.
They must not be installed on the outside of a building or built into a cabinet or recessed in any way.
“Caution: This equipment has been investigated with regard to safety from electrical fire and shock
hazard only. The mechanical features have not been investigated and are subject to approval by the
inspection authority having jurisdiction.”
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.
5. INTRODUCTION
Thermoscreens Ltd
1210 Balmoral Rd.
Cambridge, ON N1T 1A5
CANADA
Email: [email protected] — http://www.thermoscreens.ca
Tel: [phone]

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The following items are supplied in the box at delivery.
The following tools are required for installation:
7. TOOLS REQUIRED
6. DELIVERY CONTENTS
NOTE: If any parts are missing or damaged contact your place of purchase.
HX Surface Mounted Air Curtain Ecopower Remote Control
Note: End caps are supplied loose to
be fitted during installation Supplied with
6m / 20ft RJ Control Cable
Wall Brackets and
M10 Fixing Bolts
Flat blade screwdrivers
Phillips
head
screwdrivers
10mm
wrench
Adjustable wrench

Electric drill
Ladders
Appropriate lifting equipment
NOTE: On water heated units a 3-port water heating valve is factory fitted inside the air curtain.
3 brackets for
HX1500 & HX2000
Door Switch
1m, 1.5m - x1
2m -x2

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Fig 2
Fig 1
208V - 3.3m / 10ft 10in
230V - 3.5m / 11ft 6in
100mm / 4in
The air curtain is designed to be located horizontally over a doorway. It must not be installed outside
of the building.
8.1 Location
Mount the air curtain above and as close to the doorway as possible,
with:
the height of the discharge grille above floor level to be no
more than as indicated in Fig 1
at
least
100mm / 4in clearance (air gap) above electric/water
heated air curtains, see Fig 1
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.
8.2 Wall Fixing
Step 1 Bolt all wall brackets to the rear face of the unit
as shown in Fig 2, using the M10 fixing bolts
supplied.
Step 2 Drill fixing points in the wall, referring to
Appendix 1 for correct positioning.
Step 3 Screw in the top wall bolts leaving a small gap
between the screw head and the wall.
Step 4 Lower the unit onto the bolts via the key-hole
slots in the top of the wall brackets and screw in
the bottom wall bolts.
Step 5 Tighten all fixing bolts until the air curtain is
safely secured to the wall.
8. INSTALLATION
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 4. Specifications).
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.

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Fig 3
8.3 Ceiling Suspension
3/8” UNC Threaded rods (not supplied) are used to suspend
the unit from the ceiling.
Suspend the unit from the ceiling as follows:
Step 1 Screw the threaded rods into all of the holes in the
top face of the unit as shown in Fig 3.
Step 2 Fit 3/8” UNC locking nuts (not provided) to prevent
the rod rotating and coming away from the casing.
Step 3 Secure each suspension rod to a suitable structure that can support the weight of the unit
(see Section 4. Specifications for weights).
8.4 LPHW Models
For LPHW models ensure that water isolation valves are fitted in the flow and return pipework
adjacent to the air curtain and connected correctly as shown in the diagram in Appendix 1.
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.
Air Curtain Water Flow Rate
(l/min at 82/71°C / US Gall/min at 180/160°F) Water Pressure Drop (kPa / psi / ft H2O)
HX1000W, 2-row
(12kW) 15.6 / 4.1 6.8 / 0.99 / 2.3
HX1500W, 2-row
(18kW) 23.4 / 6.2 13.4 / 1.94 / 4.5
HX2000W, 2-row
(24kW) 31.2 / 8.2 22.6 / 3.28 / 7.5
Air Curtain Water Flow Rate
(l/min at 60/40°C / US Gall/min at 140/100°F) Water Pressure Drop (kPa / psi / ft H2O)
HX1000W, 4-row
(12kW) 8.6 / 2.3 9.6 / 1.39 / 3.2
HX1500W, 4-row
(18kW) 12.9 / 3.4 10.3 / 1.49 / 3.4
HX2000W, 4-row
(24kW) 17.1 / 4.5 10.5 / 1.52 / 3.5
NOTE: Do not screw hanging rods too far in as they
could interfere with internal components.
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.
NOTE: Water Pressure Drop is across the flow and return connections of the air curtain and includes for the
coil and valve fitted inside the unit.
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.
Table 2

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Fig 4
2
1
Fig 5
9.1 How to access terminals
To gain access to the air curtain for connection and commissioning, remove air inlet grilles and
bottom 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 Philips 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 4) and turn the screw one quarter of a turn
anticlockwise.
9.1.2 Remove bottom access panel
Unfasten the securing screw at each end (see 1, Fig 5) and, if
applicable, two screws in the centre (HX1500 and HX2000 units only).
To remove, slide the access panel (see 2, Fig 5) out forwards.
9. ACCESS FOR ELECTRICAL CONNECTION
NOTE: All air curtain panels are protected in a plastic film. When access panels are removed this
film can be removed.

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Mount the Ecopower remote control in a convenient position directly to the wall or onto a switch box.
10.1 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 6).
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.
10.2 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 6).
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 7).
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
11. REMOTE CONTROL SETTINGS
10. REMOTE CONTROL INSTALLATION
NOTE: For optional remote control settings see Section 11. Remote Control Settings
Fig 6
Fig 7
23/8in
Table 3

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12.1 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 8). 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 12.3)
12. EXTERNAL CONTROLS
Fig 8
WARNING: Do not apply any voltage to terminals IN0 and IN1 as this will damage the Ecopower
PCB inside the air curtain.
Table 4
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.

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12.2 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 9).
Refer to Section 19.1 Overheat Safety cut out,
for how to reset a overheat safety cut-out
situation.
12.3 Weather compensation control
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 10)
On the Ecopower PCB, set DIP 4 to OFF as per Table 4,
(see Section 12.1 Remote switch contacts IN0, IN1).
For master/slave control, plug and connect units together with Thermoscreen RJ extension cables
(not supplied) as per Figure 11 below. Each air curtain must have its own electrical supply.
13. MULTIPLE AIR CURTAIN SYSTEMS
C
NC
A
LARM!
NO
HEALTHY
Fig 9
Fig 11
maximum 8 units
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.
Fig 10
Switch Contact Closed = Heating Enabled (cold day)
Switch Contact Open = Heating Disabled (warm day)
Outdoor Air
Thermosta
t

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14.1 Optional features
DIP switches on the air curtain Ecopower PCB (see Fig 12) 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 12.1 Remote
Switch Contacts IN0 and IN1
for details
Weather compensation
control is the same as
Summer/Winter control
14. SYSTEM CONFIGURATION
Fig 12
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

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Factory settings for the 3 fan speeds are shown in Table 5 and 6 below:
Fan running on 208V (refer to wiring diagrams in Appendix 2)
Fan Speed
(air curtain as
delivered)
Motor Speed
Tapping
Maximum air curtain
mounting height
(m/ ft)
Sound Pressure
Level of air
curtain
[dB(A) at 3m /10ft]
Air Volume
Flow Rate
(m3/h / cfm)
HIGH
(black wire) 1 (highest speed)
air velocity at discharge is
8.7 m/s / 1700 ft/min 3.3 / 10ft 10in HX1000 - 57
HX1500 - 58
HX2000 - 58
1375 / 810
1980 / 1165
2480 / 1460
MEDIUM
(blue wire) 2 2.9 / 9ft 6in HX1000 - 55
HX1500 - 56
HX2000 - 56
1190 / 700
1820 / 1070
2165 / 1275
LOW
(red wire) 3 2.2 / 7ft 3in HX1000 - 50
HX1500 - 52
HX2000 - 52
1000 / 590
1630 / 960
1820 / 1070
Fan running on 230V (refer to wiring diagrams in Appendix 2)
Fan Speed
(air curtain as
delivered)
Motor Speed
Tapping
Maximum air curtain
mounting height
(m/ ft)
Sound Pressure
Level of air
curtain
[dB(A) at 3m /10ft]
Air Volume
Flow Rate
(m3/h / cfm)
HIGH
(black wire) 1 (highest speed)
air velocity at discharge is
9.4 m/s / 1850 ft/min 3.5 / 11ft 6in HX1000 - 58
HX1500 - 60
HX2000 - 60
1500 / 885
2160 / 1270
2660 / 1565
MEDIUM
(blue wire) 2 3.1 / 10ft 2in HX1000 - 56
HX1500 - 58
HX2000 - 58
1350 / 795
1990 / 1170
2420 / 1425
LOW
(red wire) 3 2.4 / 7ft 10in HX1000 - 53
HX1500 - 56
HX2000 - 56
1160 / 685
1830 / 1080
2120 / 1250
Sound pressure levels dB(A) at 3m/10ft 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).
15. FAN SPEED SELECTION
Table 5
Table 6

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2
1
3
4
5
6
7Heating level scale
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 11. Remote Control Settings (DIP switch 4).
5, 6 & 7 Fan speed
Switch fan speed between Low, Medium and High respectively. The appropriate LED illuminates.
16. 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.
NOTE: Do not switch the unit off at the electrical power disconnect as this may cause the overheat
safety cut-out system to function on electric heated units, only switch off using the remote
control so the fan will run-on if the air curtain has been heating.
NOTE: On HX A (Ambient – non heated) units the LED indicators on the Heating level scale and
AUTO button still illuminate but are ignored as nothing happens in the air curtain.

T9901096-3-4 CAN-USA-ENG (v9) Page | 16
17.1 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.
17.2 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 20. Service & Maintenance.
Complete the following once commissioning is completed.
Installer signature Customer signature
Installer name Customer name
Installer company Customer company
Date Date
18. SIGN OFF
17. COMMISSIONING THE SYSTEM
NOTE: Leave these instructions with the customer/end user or their representative!!

T9901096-3-4 CAN-USA-ENG (v9) Page | 17
19.1 Overheat Safety cut-out
An overheat fault in electric heated units may cause the overheat safety cut-out(s) to operate. They
may also operate if the air curtain is turned off at the electrical disconnect or during power outage if
the heating elements are working at the time. Only turn off the air curtain using the remote control,
see Section 16. Remote Control Operation.
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, air inlets are not blocked, air
filters are clean and the unit has been commissioned as per Section 17.
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.
Do not reset more than 3 times. If this should happen do not reset again but have unit inspected by a
reputable electrician.
19.2 Fuses
In the event of an electrical fault internal electrical fuses may operate.
There are two 6.3A(T) internal fuses located in two DIN-rail fused terminals inside the air curtain
There are also 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
19.3 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.
Indicators on Ecopower Remote Control also flash!
(see Section 19.1: Fault Conditions for how to reset)
19. FAULT CONDITIONS

T9901096-3-4 CAN-USA-ENG (v9) Page | 18
20.1 Every week
Turn off the air curtain to prevent entry of dust then clean the face of the air inlet grilles and air filters
inside the grilles using a vacuum cleaner with an extension tube and brush.
20.2 Every 3 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 Philips No.1 screwdriver to remove air inlet grilles by releasing the quarter-turn
fasteners at the bottom corners of each air inlet grille. See Fig 4, Section 9.1.1.
Step 3 Clean and remove any build-up of dust and dirt within the air-curtain (inlet/outlet grilles, fan
impellers, housings and motors) using a vacuum cleaner and soft brush.
Step 4 Check within the unit to ensure all electrical connections and crimped terminals are tight
and that all cables are in good condition.
Step 5 On electric heated air curtains remove the fan deck(s) as follows to inspect electric
heaters, electrical wiring and connections and to remove dust, dirt and debris:
Unclip the fan motor electrical connector.
Unfasten 4 x M6 nuts/bolts on each fan deck.
Unfasten M4 screws at bottom edge of fan deck.
Carefully lift the fan deck away from the air curtain.
Refit fan deck(s) and air inlet grilles after servicing. Reconnect electrical supply and test to ensure
correct operation (see Section 17. Commissioning).
20. 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: 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.
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.

Page | 19
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
1210 Balmoral Road
Cambridge, Ontario
N1T 1A5 CANADA
email: [email protected]
TF: 1-877-445-3739
T: 705-797-0013
www.thermoscreens.ca
20. WARRANTY
T9901096-3-4 CAN-USA-ENG (v9)

T9901096-3-4 CAN-USA-ENG (v9) Page | 20
1300 / 51.2
HX1000 HX1500 HX2000
A
-
Inserts for 38UNC drop rods,
4 for 1m unit, 6 for 1.5m/2m units
Use all drop rod holes !
G
HH
340 / 13.4
25 / 1.0 100 / 3.9 (min.)
AIR IN
AIR OUT
468 / 18.4
A
B
EF
DC
Remote control connection interface
Entry points for electrical
supply and controls
Rp¾ / ¾ in. BSPP
LPHW connections
- -
II
J (Effective Width of Airstream)
mm/ inch
15 / 0.6
306 / 12.1
360 / 14.2
20 / 0.8
B
C
D
E
F
G
H
I
J
1825 / 71.9 2350 / 92.5
895 / 35.2 1430 / 56.3 2005 / 78.9
720 / 28.4 1032 / 40.6
710 / 28.0 973 / 38.3
202 / 8.0 197 / 7.8 143 / 5.6 202 / 8.0 202 / 8.0197 / 7.8
898 / 35.4 1904 / 75.01398 / 55.0 952 / 37.5699 / 27.5
201 / 7.9 223 / 8.8213 / 8.4
1100 / 43.3 2150 / 84.71630 / 64.2
58 / 2.3
K184 / 7.2 167 / 6.6220 / 8.7
14038
K
APPENDIX 1 — Dimensions of HX Surface Mounted Air Curtain