Thermoscreens HX1000AR Manual

9901098-2-2 Page | 1

AIR CURTAIN

HX RECESSED RANGE

INSTALLATION, OPERATION AND

MAINTENANCE INSTRUCTIONS

N. America

English

9901098-2-2 Page | 2

1CONTENTS......................................................................................................................................2

2ELECTRICAL SAFETY.....................................................................................................................3

3SPECIFICATIONS............................................................................................................................3

4.INTRODUCTION ..............................................................................................................................4

5.DELIVERY CONTENTS...................................................................................................................5

6.TOOLS REQUIRED..........................................................................................................................5

7.INSTALLATION ................................................................................................................................6

8.REMOTE CONTROL INSTALLATION.............................................................................................9

9.REMOTE CONTROL SETTINGS.....................................................................................................9

10.EXTERNAL CONTROLS................................................................................................................10

11.SYSTEM CONFIGURATION..........................................................................................................11

12.MULTIPLE AIR CURTAINS............................................................................................................12

13.FAN SPEED SELECTION..............................................................................................................13

14.REMOTE CONTROL OPERATION................................................................................................14

15.COMMISSIONING THE SYSTEM..................................................................................................15

16.SIGN OFF.......................................................................................................................................15

17.FAULT CONDITIONS.....................................................................................................................16

18.SERVICE & MAINTENANCE .........................................................................................................17

19.WARRANTY ...................................................................................................................................18

APPENDIX 1 — DIMENSIONS OF HX RECESSED AIR CURTAIN .......................................................19

APPENDIX 2A — WIRING DIAGRAM HX1000ER 208V.........................................................................20

APPENDIX 2B — WIRING DIAGRAM HX1500ER 208V.........................................................................21

APPENDIX 2C — WIRING DIAGRAM HX2000ER 208V.........................................................................22

APPENDIX 2D — WIRING DIAGRAM HX1000ER 480V or 600V...........................................................20

APPENDIX 2E — WIRING DIAGRAM HX1500ER 480V or 600V ...........................................................21

APPENDIX 2F — WIRING DIAGRAM HX2000ER 480V or 600V............................................................22

APPENDIX 2G — WIRING DIAGRAM HX1000WR, HX1500WR and HX2000WR.................................26

APPENDIX 2H — WIRING DIAGRAM HX1000AR, HX1500AR and HX2000AR....................................27

1 CONTENTS

9901098-2-2 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 the IEE wiring regulations and/or local statutory regulations.

A 1 phase or 3 phase local disconnect 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. 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 3: Specifications.

Models operating on a 480V or 600V, 3 phase electrical supply - see section 3:

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 should be used for the Electrical

Supply into the air curtain.

The air curtain must be grounded.

Air Curtain Model 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)

HX1000AR 208…240/1/60 0.35 1.4 – 1.10 / 43 45 / 99

HX1500AR 208…240/1/60 0.5 2.0 – 1.63 / 64 66 / 146

HX2000AR 208…240/1/60 0.7 2.8 – 2.15 / 85 80 / 176

HX1000WR 208…240/1/60 0.35 1.4 6/12 1.10 / 43 52 / 115

HX1500WR 208…240/1/60 0.5 2.0 9/18 1.63 / 64 75 / 165

HX2000WR 208…240/1/60 0.7 2.8 12/24 2.15 / 85 93 / 205

HX1000ER (208V) 208/3/60 12.35 36.0 6/12 1.10 / 43 46 / 101

HX1500ER (208V) 208/3/60 18.5 54.0 12/18 1.63 / 64 67 / 148

HX2000ER (208V) 208/3/60 24.7 72.0 12/24 2.15 / 85 84 / 185

HX1000ER (480V) 480/3/60*

+ 208…240/1/60 12

0.35 14.5

1.4 6/12 1.10 / 43 46 / 101

HX1500ER (480V) 480/3/60*

+ 208…240/1/60 18

0.5 21.7

2.0 12/18 1.63 / 64 67 / 148

HX2000ER (480V) 480/3/60*

+ 208…240/1/60 24

0.7 28.9

2.8 12/24 2.15 / 85 84 / 185

HX1000ER (600V) 600/3/60*

+ 208…240/1/60 12

0.35 11.6

1.4 6/12 1.10 / 43 46 / 101

HX1500ER (600V) 600/3/60*

+ 208…240/1/60 18

0.5 17.3

2.0 12/18 1.63 / 64 67 / 148

HX2000ER (600V) 600/3/60*

+ 208…240/1/60 24

0.7 23.1

2.8 12/24 2.15 / 85 84 / 185

3SPECIFICATIONS

2 ELECTRICAL SAFETY

9901098-2-2 Page | 4

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 ER, WR or AR are designed to be recess mounted inside a building and located

horizontally over a doorway.

They must not be installed on the outside of a building.

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 Canada Toll Free: 877 445 3739

11 King Street, Unit #3 Tel: 705 797 0012

Barrie, Ontario Fax: 705 797 0013

Canada L4N 6BS Email: salescanada@thermoscreens.com

4. INTRODUCTION

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The following items are supplied in the box at delivery.

HX Recessed Air Curtain Ecopower Remote Control

Note: The recessed grille is Supplied with 6m / 20ft control cable

packed separately.

Outdoor Air Sensor (Optional)

Available for weather compensation

control

The following tools are required for installation:

Flat head screwdrivers

Phillips head screwdrivers

10mm wrench

Adjustable wrench

Electric drill

Ladders

Appropriate lifting equipment

Appropriate tools for cutting ceiling

aperture

6. TOOLS REQUIRED

5. DELIVERY CONTENTS

NOTE: If any parts are missing or damaged contact your place of purchase.

9901098-2-2 Page | 6

The air curtain is designed to be recessed within ceiling voids or bulkheads within a building and

located horizontally over a doorway. It must not be installed outside of the building.

7.1 Location

Mount the air curtain above and as close to the doorway as

possible, with:

the recessed grille not more than 3.5m / 11ft 6in

above floor level

the air discharge (see 1, Fig 1) section of the

recessed grille nearest the doorway and the air inlet

section (see 2, Fig 1) furthest from the doorway

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.

7.2 Ceiling Suspension

Step 1 Cut an aperture in the ceiling to the dimensions

in Appendix 1. Cut notches, if necessary, to clear

screws in the air curtain casing.

Step 2 Fix M10 / 3/8” UNC threaded rods (not supplied)

through the 2 holes at each end in the top casing

(see Fig 2). Feed the rods through the casing and

attach to fixing brackets near the bottom of the

unit (see Fig 3, looking up into the air curtain). Use

M10 / 3/8” UNC lock-nuts either side of the fixing

bracket to secure the hanging rod.

7. INSTALLATION

NOTE: For the air curtain to work well the doorway should be less than the width of the airstream.

Fig 1

NOTE: For LPHW models, pipework will need to be

installed above the curtain. Allow sufficient access and

height clearance within the ceiling void to do this.

Fig 2

NOTE: Do not let these four hanging rods come below

the bottom of the unit casing or they may prevent the

recessed grille fitting properly.

Fig 3

9901098-2-2 Page | 7

Step 3 If you are installing model HX1500R or HX2000R, fit a 5th M10 / 3/8” UNC threaded rod

into the hanging point in the middle of the unit. Refer to Appendix 1 and Fig 4.

38mm / 1.5"

CEILING LEVEL CEILING LEVEL

Bottom surface of recessed

air curtain casing

M10 / 38" UNC hanging rods

RECESSED AIR CURTAIN

38mm / 1.5"

Step 4 Secure each rod to a suitable structure that can support the weight of the unit (see

section 3: Specifications for weights).

Step 5 Adjust the height of the unit on its hanging rods so the bottom surface of the casing goes

38mm / 1.5in up into the ceiling as shown in Fig 4. Ensure the unit is level.

7.3 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 the table 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)

HX1000WR, 2-row (12kW)

15.6 / 4.1

6.3 / 0.91 / 2.1

HX1500WR, 2-row (18kW)

23.4 / 6.2

12.9 / 1.87 / 4.3

HX2000WR, 2-row (24kW)

31.2 / 8.2

22.9 / 3.32 / 7.6

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)

HX1000WR, 4-row (12kW)

8.6 / 2.3

9.5 / 1.38 / 3.2

HX1500WR, 4-row (18kW)

12.9 / 3.4

10.3 / 1.49 / 3.4

HX2000WR, 4-row (24kW)

17.1 / 4.5

10.9 / 1.58

3.6

* 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.

Fig 4

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.

9901098-2-2 Page | 8

7.4 Attaching the recessed grille to the air curtain

The recessed grille consists of:

Metal frame

Cellular discharge grille

Hinged inlet grille

There are 4 fixing points on the HX1000R, 6 on the HX1500R

and 7 on the HX2000R (see Fig 5).

Fix the grille as follows:

Step 1 Open the hinged inlet grille using a flat headed

screwdriver to release the quarter turn fasteners (see

Fig 6). There are two fasteners on the HX1000R unit

and three fasteners on HX1500R and HX2000R units.

Step 2 Make sure the grille will go the correct way around

(cellular discharge nearest to doorway). Offer the

recessed grille up through the cut-out in the ceiling

and attach it to the bottom of the air curtain casing

using the Philips head screws supplied. Start with

the screws shown in Fig 7 and then fit the two

at each end of the discharge grille.

Step 3 If fitting model HX1500R or HX2000R units insert 1 or

2 screws towards the middle of the unit as shown in

Fig 8.

Step 4 On model HX1500R or HX2000R units fit 1 screw in

the middle of the discharge grille. This screw is easier

to access if the hinged inlet grille is temporarily shut.

Step 5 With the hinged inlet grille open again adjust the

hanging rods (see Fig 9) so the grille frame fits neatly

against the ceiling. Ensure the grille frame is a snug fit

against the ceiling with no gaps all the way around.

Fig 5 (HX2000R shown)

Fig 6

Fig 7

Fig 8

NOTE: Open the hinged grille core to gain access to electrical connections, and for servicing and

maintenance.

9901098-2-2 Page | 9

Mount the remote control unit in a convenient position directly to the wall or onto a switch box.

8.1 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 10).

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.

Step 4 Refit the front case.

8.2 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 10).

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 x mounting screws (not supplied) (see Fig 11).

Step 3 Connect the RJ plug to the RJ socket on the PCB.

Step 4 Refit the front case.

On the back of the remote controller PCB you will find four DIP switches that provide the following

optional features.

DIP1 – Reset on power-up

On restoring power after an electrical

interruption all remote control settings are

retained. DEFAULT SETTING ON

Dip2 – Stop fan on cold

Fans are switched off when heating level is

achieved (Automatic mode only).

DEFAULT SETTING OFF

DIP3 – Never blow cold

Air curtain always heats in Automatic mode

(i.e. will not go to ambient mode).

DEFAULT SETTING OFF

DIP4 – Room air temperature control

Enabling the room air sensor in the remote

control disables all other temperature sensors.

DEFAULT SETTING OFF

9. REMOTE CONTROL SETTINGS

8. REMOTE CONTROL INSTALLATION

Fig 10

Fig 11

NOTE: For optional remote control settings, see section 9.

/8in

T9901096-3-3 CAN-USA-ENG (v9) Page | 10A

10.1 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





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)

10.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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