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: sales@thermoscreens.com
Tel: +44 (0) 24 7638 4646
Fax: +44 (0) 24 7638 8578
www.thermoscreens.com
4001150-8 UK Page 1 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 2 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 (m
1. If the ceiling void is enclosed around the air curtain it will need an air ventilation grille of
effective free area (cm
to enter the punched air ventilation slots.
Table 1
Air curtain
2
) as given in Table 1 and an adequate air path within the void for air
Required air flow within
ceiling void (m3/hr)
Effective free area of ventilation grille
for an enclosed ceiling void (cm2)
3
/hr) to the unit, see Table
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
fixing
bracket
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
4001150-8 UK Page 3 of 16
Electrical
supply inlet
33
1m-140
1.5m-140
2m-150
165
B
206
CEILING LEVEL
C
25-85mm
A
22
2040
C2000R
2090
LPHW connectio n s
Rp 1/2 (1/2" BSP female)
257
22
301
Figure 1
353
1579
1529
C1500RC1000R
1179B(mm)
1129
A(mm)
1209 1609 2120
C(mm)
15791179 2090
301 301 301
Width(mm)
Length(mm)
Cut-Out
in Ceiling
4001150-8 UK Page 4 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
Rated Power
Input (kW)
Current per
phase (A)
Heat Output
(kW)
Weight
(kg)
(V/ph/Hz)
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 5 of 16
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