Thermoscreens C1000R Guide

4001150-8 UK Page 1 of 16

C-RECESSED RANGE AIR CURTAINS

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS

PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION

Thermoscreens Ltd

St. Mary’s Road Nuneaton

Warwickshire England

CV11 5AU

Email: [email protected]

Tel: +44 (0) 24 7638 4646

Fax: +44 (0) 24 7638 8578

www.thermoscreens.com

4001150-8 UK Page 2 of 16

UN-PACKING YOUR C-RECESSED AIR CURTAIN

The following items are supplied and packaged within the boxes.

C-Recessed Air Curtain

Motorised Valve

(Ecopower LPHW units only)

Remote Control

Ecopower

Electric & LPHW

Manual Ambient

Recessed Grille

If anything is missing or damaged please contact your place of purchase immediately.

For your records

Date of Purchase……………………………..

Place of Purchase…………………………….

Serial Number…………………………………

For warranty purposes proof of purchase is necessary so please

keep a copy of your invoice.

(All documentation supplied with each unit should be stored and kept for future reference).

4001150-8 UK Page 3 of 16

INSTALLATION OF YOUR HORIZONTAL APPLICATION C-RECESSED AIR CURTAIN

The C-Recessed air curtain has been designed for recessing within ceiling voids

or bulkheads.

Location

Ensure that the unit is mounted within its height

specification of 1.8m to 2.75m maximum (from floor

level to the underside of the unit/grille) and that it is

situated as close to the door as possible.

Note: The air discharge should be nearest to the

door as shown in adjacent figure. Ensure the air

curtain is as close to the door opening as possible

for best performance, obstructions such as door

opening devices, structural beams etc will reduce

the performance.

Note the C-Recessed air curtain has a series of punched air ventilation slots along one side

panel of the unit which will be within the ceiling void once the unit is installed. There must

be an air gap of 50mm minimum between these ventilation holes and any

obstruction/bulkhead within the ceiling void to allow ventilation air to easily enter the air

curtain via these slots. Furthermore, the ceiling void must be sufficiently large and freely

ventilated so there will be an adequate supply of ventilation air (m3/hr) to the unit, see Table

1. If the ceiling void is enclosed around the air curtain it will need an air ventilation grille of

effective free area (cm2) as given in Table 1 and an adequate air path within the void for air

to enter the punched air ventilation slots.

Table 1

Air curtain Required air flow within

ceiling void (m3/hr)

Effective free area of ventilation grille

for an enclosed ceiling void (cm2)

C1000R 353 500

C1500R 421 700

C2000R 707 1200

Ceiling Suspension

Make the cut-out in the ceiling to the dimensions given in Figure 1, ensuring the length of

the hole is exact. The air curtain will fit through the ceiling cut-out, ensure there is sufficient

height clearance in the ceiling void to do this. Alternatively, the ceiling can be fitted after the

air curtain has been installed.

Clearance holes for M8 threaded rod to enter from

above are provided on the top face of the casing (4x,

for dimensions see Figure 1) allowing the unit to be

suspended. Insert rod through each hole in top and

attach onto each fixing bracket at lower edge of air

curtain (see insert). Lock rod in place using M8 nut

above and below fixing bracket (threaded rod and

locking nuts are not provided). Ensure rod does not

come below bottom face of unit.

Ensure each of the threaded rods are secured on to

a suitable structure that can support the weight of

the unit (for unit weights see Table 2)*.

* It is the sole responsibility of the installer to ensure that the building fixing points and

suspension system used are suitable for the air curtain being installed

fixing

bracket

4001150-8 UK Page 4 of 16

1579

C(mm)

1179B(mm)

C1500RC1000R

1129

A(mm) 1529

C2000R

2040

2090

1209 1609 2120

353

CEILING LEVEL

257

206

Electrical

supply inlet

301

165

1m-140

1.5m-140

2m-150

Figure 1

Length(mm)

Width(mm)

Cut-Out

in Ceiling

15791179 2090

301 301 301 LPHW connections

Rp 1/2 (1/2" BSP female)

25-85mm

4001150-8 UK Page 5 of 16

Safety and Electrical Connections

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 single phase or 3 phase isolator with a contact separation of at least 3mm in all poles

must be fitted to the supply wiring (the isolator must be fitted in an accessible position).

The air curtain must be earthed.

The appliance must be connected using cables having an appropriate temperature

rating (heat resistant).

Ensure that the supply cables, circuit breakers and other electrical installation equipment

are correctly sized for the air curtain being installed; see Table 2.

On a 3 phase electrical supply the unit requires a neutral connection (3N~).

Cable glands used for the Electrical Input must be rated IP21 or higher.

Table 2

Air Curtain Electrical

Supply

(V/ph/Hz)

Rated Power

Input (kW) Current per

phase (A) Heat Output

(kW) Weight

(kg)

C1000AR 230/1/50 0.15 0.7 N/A 19

C1500AR 230/1/50 0.20 0.9 N/A 25

C2000AR 230/1/50 0.25 1.1 N/A 35

C1000WR 230/1/50 0.15 0.7 6.0 22

C1500WR 230/1/50 0.20 0.9 9.0 30

C2000WR 230/1/50 0.25 1.1 12.0 41

C1000ER 400/3/50 9.15 13.7 4.5/9.0 20

C1500ER 400/3/50 12.20 18.3 6.0/12.0 27

C2000ER 400/3/50 18.25 27.2 9.0/18.0 37

Fitting of the Recessed Grille

The grille consists of a frame, grille core (fitted within

the frame) and four brackets (note: the brackets are

fixed to the frame).

Removal of Grille Core

Prior to fitting the grille to the air curtain and the

ceiling the grille core will need to be removed from its

frame. Release the grille core by unfastening the two

conical head bolts fitted at each end of the grille core.

Push against the spring loaded pins and the grille

core can now be pulled clear of its frame.

Note: the grille core will still be attached to the

frame via cord safety ties.

The rectangular hole in the ceiling must be

sized to suit the grille frame, see Figure 1

for dimensions.

4001150-8 UK Page 6 of 16

Attaching the Grille to the Air Curtain

Before lifting the grille frame into position locate the four M6 bolts (two inside each end

of the air curtain). Remove the M6 bolts and lift the frame into position (ensure that

when fitted the air discharge vanes align with the air discharge of the air curtain, see

Figure 1), screw each M6 bolt through the slot in the grille bracket until all four are

located into place. Adjust the height of the grille frame (via slots in brackets) so the

frame fits nicely against the under side of the ceiling. Once the desired height is

achieved tighten each M6 bolt in place locking the grille frame into the correct position.

Adjusting the Separator Plate

Within the air curtain there is a sliding separator plate,

this needs adjusting up or down to stop the air

discharge re-circulating within the air curtain. To adjust

the separator plate release the M6 bolts at either end,

extend the slide plate so that it will just touch the

topside of the grille along its whole length and tighten

the bolts. It will be necessary to fit the grille core to

gauge where the separator plate should be fitted.

Fitting the Grille Core

Once the above is complete the grille core can be refitted, to do so locate each spring

loaded pin in its locating hole, push against the spring loaded pins to allow the fixed pins

to locate within their fixing holes. Tighten and secure the conical head bolts fitted at

each end of the grille core.

Once the ceiling is finished remove the protective plastic film from the recessed grille

frame.

LPHW Models

For LPHW models ensure suitable water mains isolation valves are fitted in the flow

and return pipework. When fitting the 3-port valve ensure that the pipe connections are

fitted as detailed below and are in accordance with the manufacturers leaflet supplied

with the valve.

4001150-8 UK Page 7 of 16

Air Curtain Water Flow Rate (l/s)

82/72 °C Coil Water Pressure Drop (kPa)

C1000WR 0.14 2.77

C1500WR 0.21 6.74

C2000WR 0.29 13.40

Ambient Models

Ambient units are supplied with a remote switch unit.

The switch unit allows the air curtain to be powered

ON/OFF and select one of three fan speeds.

Fitting/Connecting the Remote Control

The Ecopower Plus controller uses extra low voltage to communicate via the RJ control

cable supplied. The controller should be located in a suitable place for easy access, it

can be fixed to the wall via various fixing slots

provided in the back case or onto an electrical

switch box (not provided). To mount controller

onto an existing switch box, feed one end of the

control cable through the switch box (see insert).

Using a screwdriver undo screw mounted on

the top of the controller case. Pull the front case

slightly forwards and lift the back case away.

Feed and secure the RJ control cable through

one of the openings in the back case and

secure back case to switch box using 2 x M3.5

mounting screws (not provided).

With the cable RJ plug locking clip lying nearest

to controller PCB, connect the RJ plug to the RJ

socket on the board.

Note: For controller DIP switch options refer to

Ecopower Plus Remote Control Operation and

DIP Switch Settings.

Refit the controller front case to the back case.

The air curtain end of the control cable should be

connected to one RJ socket fitted either on the

top panel for NT or the Ecopower motherboard

inside a recessed air curtain. Ensure the control

cable is safely secured.

4001150-8 UK Page 8 of 16

Multiple Installation (Ecopower only)

To Master/Slave two or more air curtains together the remote control is plugged into the

Master unit and a RJ lead should be connected from the Master to the Slave unit(s).

Thermoscreens 3m RJ extension leads are available and must be ordered separately.

Additional air curtains, up to a maximum of eight units, may be connected as indicated

below. For Master/Slave configuration an independent mains supply as per Table 2 must

be supplied to each air curtain.

Ecopower Controller Motherboard

Function

Control Comments Standard

Fan Heat Interlock –

The heat output is governed by the

fan speed. If low or medium fan

speed is selected the heat output

will operate on only first heat stage.

Second stage heating will only

operate on high fan speed.

DIP1 Option Suitable on vertical electrically heated

Designer air curtain. Maximum heat

output achieved if maximum fan speed

selected. Independently set-up DIP

switch on each mother board. This

feature operates in manual or auto

mode.

As supplied, the

default setting

would be for

heat and fan

settings to be

independent

(DIP1 OFF).

Disable Fan Run-on –

Disable fan run-on.

DIP2 Option

(LPHW &

Ambient only)

Must only be used for LPHW and

Ambient air curtains. Independently

set-up DIP switch on each mother

board.

As supplied, the

default setting

would enable

fan run-on

(DIP2 OFF).

Thermostat Master –

Only the air sensor thermistor in

the master air curtain will be used

for measuring the reference air

temperature for the whole

master/slave installation.

DIP3 Option

The air sensor thermistors in all the

slave air curtains will be ignored. This

will then avoid situations on larger

doorways with master/slave air

curtains where some units can blow

cold air whilst others can blow warm

air, because they currently all refer to

their own air sensor for control of the

heat output of each air curtain.

The master air curtain need not be the

one that the wall control is plugged

into. This dip switch setting must also

be used for Global Switching

(Master/Slave) via the INHIBIT

terminal – see next page.

As supplied, the

default setting

would be for the

air sensor

thermistor on all

units to be

measuring

(DIP3 OFF).

Overheat Fan Disable –

If DIP4 is on and thermal cut-out(s)

operate both heat and fan circuits

are isolated and LED’s on wall

switch flash. If DIP4 is off and

thermal cut-out(s) operate, only the

heating circuit is isolated and the

LED’s on the wall switch flash.

DIP4 Option

(Electric only)

Independently set-up DIP switch on

each mother board.

To remove fault, isolate electrical

supply to air curtain, reset TOC and

reconnect supply.

As supplied, the

default setting

would enable

fan if TOC trips

(DIP4 OFF).

Fan run-on time set two minutes. Built-in If “FAN ONLY” has been selected, at

switch off, no fan run-on.

- white rectangle indicates the moveable head of each 4 way DIP switch

OFF

1 2 3 4

OFF

1 2 3 4

OFF

1 2 3 4

OFF

1 2 3 4

4001150-8 UK Page 9 of 16

DIP switches fitted on the Ecopower board provide a selection of optional features as described

above. Isolate and switch electrical power off before configuring and/or changing any DIP switch

settings.

Easy plug-in arrangement for remote air sensor thermistor on a 1m lead. Plugging-in the remote

air sensor to J3 disables the standard air sensor thermistor already fitted on the Ecopower board.

As supplied, the board will not have the remote air sensor fitted.

An INHIBIT two screw terminal fitted on the Ecopower board for BMS remote On/Off feature.

If the terminal is linked, i.e. by 2 wires to a remote volt free contact, the unit will run. If it is open

circuit across the terminal the unit will switch off. This remote On/Off feature has global switching

logic, i.e. if you master/slave several units together you need connect the remote contact to only

one of them to turn all units on and off in the master/slave system. As supplied, a wire link will be

fitted to the terminal block on every unit. For summer settings place a 3.3kΩresistance across the

INHIBIT terminal, with these settings fans only will run even if controller is requesting for heat.

ECOPOWER BOARD

Customer Building Management System

A HEALTHY two screw terminal is included on the board for a fault signal indication if the electric

elements overheat cut-out has operated. A healthy system provides a 24V DC signal at the

terminals compared to an overheat fault which provides OV DC.

4001150-8 UK Page 10 of 16

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