Claudgen ScreenZone HE8370 User manual
41000664 Iss 05
Installation Requirements ---------------------------------------------------- 1
Dimensions ---------------------------------------------------------------------- 2
Technical Specifications ------------------------------------------------------ 3
Wiring Details ------------------------------------------------------------------- 4
Energy Saving Configuration ----------------------------------------------- 5
Installation Details ------------------------------------------------------------- 6
Servicing & Maintenance ---------------------------------------------------- 7
Spare Parts ---------------------------------------------------------------------- 8
Fault Finding ------------------------------------------------------------------- 9
Parts Replacement -----------------------------------------------------------10
User Instructions -------------------------------------------------------------- 11
1 This appliance must only be installed by a competent person in accordance with the requirements
of the Codes of Practice or the rules in force.
2 All external wiring MUST comply with the current IEE wiring regulations.
3 Warning this appliance must be earthed.
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41000664 Iss 05
1.1 Introduction
1.2 General
1.3 Electrical Supply
1.3.1 Electronic Controller
1.4 Location
1.5 Clearance Distance
1.6 Health and Safety
1.7 Standards
2.1 Air Curtain
2.2 Electronic Program Keypad
3.1 General Data
3.2 Electronic Controls
4.1 Installer Wiring - 18 & 24kW
4.2 Factory Wiring - 18 & 24kW
4.3 Network Wiring - Electronic Controller
5.1 Introduction
5.2 Control with ’outdoor’ temperature sensor
5.3 Control with ’indoor’ temperature sensor
5.4 Optional Features
6.1 Mounting
6.2 Electrical Supply
6.3 Installation
6.4 Controller
6.5 Installation Wiring
8.1 General
8.2 Electronic Controller
9.1 General
9.2 Electrical Heated Units
9.3 Electronic Controller
10.1 Rotor and Motor Replacement
10.2 Electrical Element Replacement
11.1 Keypad Buttons
11.2 Manual Operation
11.3 Automatic Control
11.3.1 Auto Mode
11.3.2 Auto Mode Settings
11.3.3 Door Switch Mode
This instruction manual describes the ScreenZone
Large commercial range of air curtains.
Models range from 1500mm to 2000mm in length,
in both Standard and High capacity and are
available in Electrically Heated versions only.
They are designed for mounting above or slung on
drop rods above doorways.
Each air curtain is supplied with a fully electronic
controller giving multi fan and heat settings
(electrically operated units) via a simple key pad
which can be mounted up to 50m from the air
curtain. Optional BMS time control, external
thermostats and door interlocks can be installed.
The shown above allows
the user to control either a single air curtain, or a
network of up to 6 air curtains with the same
settings, and provides the following functions:-
- Heat On Off or Auto via optional thermostat
- Off or Low, Medium and High Fan Speeds
For further details please refer to section 11.2.
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41000664 Iss 05
All installations must be in accordance with the
regulations in force in the country of use.
These instructions must be handed to the user on
completion of the installation.
Installers and service engineers must be able to
demonstrate competence and be suitably qualified
in accordance with the regulations in force in the
country of use.
To ensure continued and safe operation it is
recommended that the appliance is serviced
annually.
The manufacturer offers a maintenance service.
Details are available on request.
The air curtain outlet grille and case air inlet slots
must not be obstructed during use.
For full electrical loadings, please refer to the
individual technical data sheets within this manual.
It is recommended that the electrical supply to the
base unit in the air curtain is via an appropriate
switched isolator in accordance with the reg-
ulations in force in the country of use and must be
via a fused isolator having a contact separation of
greater than 3mm in all poles.
BMS control, time switches, room thermostats and
door interlocks can be installed at the discretion
and responsibility of the installer.
All units must be wired in accordance with I.E.E
regulations for the Electrical Equipment of
Buildings and the installer should ensure that a
suitable isolating switch is connected in the mains
supply.
Warning
For safety reasons a good earth connection must
ALWAYS be made to the heater and control box.
Electrically heated supply is 415V 3 phase,
Neutral and Earth. Max cable inlet size is 4mm² or
6mm² (refer to individual technical specification).
Remote unit is wired to the base unit via a
screened twisted pair 28AWG (or direct equiva-
lent).
All units should be installed horizontally directly
over the door opening. It is recommended that the
air curtain is installed on the inside of the building,
within the open room space against a wall or
ceiling.
Care must be taken to allow complete free air
movement into the inlet grilles of the unit to ensure
correct working operation of the air curtain. The
discharge opening should be as close to the top of
the door as possible and to cover the entire door
width.
Units can be mounted adjacent to each other to
cover the full door opening across wider
entrances.
These units are designed for surface mounting
and should not be placed into a ceiling void, due
to possible obstruction of airflow and difficulty in
routine cleaning and maintenance.
It is recommended that a minimum clearance of
300mm is allowed around the top and front of the
unit. The clearance allows for cable entry and
prevents combustible surfaces overheating.
The minimum mounting height (floor to grille
outlet) is 1.8m. The recommended maximum
mounting height is 3m for standard and 4m for
high capacity models.
Sole liability rests with the installer to ensure that
all site safety procedures are adhered to during
installation.
Sole liability rests with the installer to ensure that
protective safety wear such as hand, eye, ear and
head protection is used during installation of the
product.
Do not rest anything especially ladders against the
product.
Units conform to the European electrical standard
BS EN 60335-2-30 and to the following European
CE directives-
73/23/EEC - amended 98/68/EEC low voltage;
89/336/EEC electromagnetic compatibility.
THIS AIR CURTAIN SHOULD NOT BE
INSTALLED WHERE THERE IS A
CORROSIVE ATMOSPHERE.
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41000664 Iss 05
SIDE VIEW
65
395
350
300
119
TOP VIEW A (see table) SUSPENSION POINTS
REAR VIEW
B (see table) WALL FIXING POINTS
240crs 75
FRONT VIEW
C (see table) DUCT OUTLET
D (see table) OVERALL WIDTH
mm
1562 2062
1492 1992
1553 2053
1638 2138
Cable
Entries
13.35
43.5
SELECT
87.0
60.3crs 60.3crs
Cable
Entries
7.3560.3crs
7.35
60.3crs
Earthing
point
SELECT
60.3crs
75.0
Cable
Entries
13.35
43.5
SELECT
87.0
60.3crs 60.3crs
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41000664 Iss 05
* Motor current only at high speed
Maximum height M3.0 4.0
Door width M2.0 1.5 2.0
Heat medium Electric heated
Heat setting kW 9 / 18 9 / 18 12 / 24
Fan type / dia Crossflow / 150mm
Fan settings 3
Switching type AC-ACR-PANEL
Weight kg 60.0 49.0 60.0
Supply voltage 415V 3ph 50Hz
Total load kW 18.4 24.4
A/pha 25.6 34.0
Motor power W370
Max Starting current* amps 5.0
Max Running current* amps 2.1
External fuse size amps A/pha 32 32 40
Programmer keypad pt. no. AC-ACR-PANEL
Program keypad control wiring Screened twisted pair 28AWG
Cable terminal size 6.0mm² Max
Mains terminal block position Separate din rail E; N; L1; L2 & L3
Control terminal block position Right side of base unit terminals +12V, DATA & GND
Air volume Low speed m³/h2900 1600 2900
Medium speed m³/h4100 2400 4100
High speed m³/h5000 3300 5000
Air velocity Low @ 0M m/s 6.0
Medium @ 0M m/s 8.5
High @ 0M m/s 11.0
High @ 1M m/s 5.2 5.5 5.2
High @ 2M m/s 3.6 3.7 3.6
High @ 3M m/s 2.4 2.5 2.4
High @ 4M m/s 1.4 1.6 1.4
Delta T Low speed °C 27 35 36
Medium speed °C 19 27 26
High speed °C 15 22 20
Noise level @ 3M
in free field
Low speed dBA 50
Medium speed dBA 55
High speed dBA 60
Length mm 2138 1638 2138
Depth (width) mm 350
Height including outlet mm 395 ( Chassis - min 502 max 563)
Outlet length mm 2095 1595 2095
Outlet depth mm 65
Outlet height mm Flush ( Chassis - min 107 max 168)
Drop rod mounting rear to ctr on depth mm 119
Drop rod side to 1st Centre mm 38
Drop rod mounting centres on length mm 2062 1562 2062
Wall mounting side to 1st centre mm 73
Wall mounting top to 1st centre mm 75
Wall mounting centres on length mm 1992 1492 1992
Wall mounting centres on height mm 240
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41000664 Iss 05
Sensor input NTC
Protection 2 x ‘slow blow’ fuse for the protection of the heater switching devices.
Fan Output 3 off Relay for High, Medium and Low Fan setting 3A max 240Vac
Connection
Screw terminals 4 for supply, 6 for heater output, 4 for fan output, 2 for
BMS (time) control, 2 for sensor input, 2 for external thermal trip, 2 for
external door switch.
Supply 415 3Ph
Dimensions Program panel 88mm(L) x 88mm(W) max.
Mounting positions Program panel fixing centres 60.3mm
Temperature 5 to 50 ºC operating; -20 to 65 ºC storage
Display Three 7-segment LCD red for parameter display
Push buttons 3 positive feedback tactile push buttons
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41000664 Iss 05
T1
T2
B2
D2
S2
S1
D1
B1
DATA
GND
+12V
BASE UNIT
(located in air curtain)
415V 50Hz
Mains Supply
Chassis
Earth
PROGRAM PANEL
(rear view shown)
External
Switch
J1
Remove link J1 for
external time switch
DATA
GND
+12V
F1
F2
F3
N
N
AC1-T3
L3
AC2-T3
AC1-T2
L2
AC2-T2
AC1-T1
L1
AC2-T1
Door
Switch
Sensor screen
Contractors
Terminal
NNeutral 6mm² max
L1 3 phase supply 6mm² max
L2 3 phase supply 6mm² max
L3 3 phase supply 6mm² max
+12V Supply to remote unit
1.0mm2 max
DATA Data to remote unit
GND(s) 0v Terminal
D1, D2 Option door contact
B1, B2 Option BMS switch
S1, S2 Option internal/external sensor
F1 T2A (slow blow)
F2 T3.15A (slow blow)
External circuit breaker with the
appropriate rating should be
installed for the protection of the
installation.
-
The program panel is connected to the base unit via a set of 3 way connectors marked "+12V”, “DATA”
and “GND". Interconnecting wiring is via screened twisted 28AWG as shown. It is rec-
ommended that this cable is run separately within its own trunking to avoid external interference.
(i.e. BMS enable) to be volt free and wired via normally open contacts to terminal
pair, B1 and B2. Remove factory fitted jumper J1.
to be volt free and wired via terminal pair, D1
and D2 (contacts closed to enable
door mode). Refer section 11.3.3 -
Door Switch Mode.
to be
wired to terminal pair, S1 and S2.
Refer section 11.3.1 - Auto Mode.
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41000664 Iss 05
Fan Motor
Overheat
AC1-T3
T1
T2
B2
D2
S2
S1
D1
B1
DATA
GND
+12V
L3
AC2-T3
AC1-T2
L2
AC2-T2
AC1-T1
L1
AC2-T1
F1
F2
F3
N
N
Elements
AC1
T1
Contractors
Terminal
L1
T2 L2
T3 L3
A2 A1
Elements
AC2
T1 L1
T2 L2
T3 L3
A2 A1
J1
L1L2L3
N
E
-
The element outputs are connected to contactors "AC1”
and “AC2” on terminals T1, T2 and T3.
The fan output is connected to a 4 way connector
marked "N”, “F1”, “F2” and “F3".
The thermal trip is connected to a 2 way connector
marked "T1" & “T2”
AC1/2-T1 Heater Elements phase 1
AC1/2-T2 Heater Elements phase 2
AC1/2-T3 Heater Elements phase 3
T1 Thermal Overheat trip
T2 Thermal Overheat trip
NNeutral to fan
F1 Fan - low speed
F2 Fan - medium speed
F3 Fan - high speed
J1 Factory BMS link
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41000664 Iss 05
(rear view shown)
PROGRAM PANEL
To subsequent air curtains
(maximum of 6)
DATA
GND
+12V
DATA
GND
+12V
DATA
GND
+12V
DATA
GND
+12V
Screw terminals
BASE UNIT
(located in air curtain 1)
BASE UNIT
(located in air curtain 2)
BASE UNIT
(located in air curtain 3) 3 core screened cable,
screen
-
This diagram refers only to the
data cable wiring of 2 or more
networked air curtains. (maximum
6 air curtains per control panel).
For mains wiring refer to section 4
of this manual ‘installer wiring
details’.
The program panel is connected
to the base unit in the first air
curtain via a set of 3 way
connector marked "+12V”, “DATA”
and “GND". Each subsequent air
curtain is linked to it’s
corresponding terminal.
Interconnecting wiring is via
Belden cable 8132 or equivalent
as shown.
(Total length of cable used
between program panel and last
air curtain in network).
It is recommended that this control
cable is run separately within its
own trunking to avoid external
interference.
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41000664 Iss 05
Shops, warehouses and factories are all subject to
the problems caused by frequently opened doors.
The open door not only causes a draft but greatly
increases energy loss and, therefore, the running
cost of the building. Screenzone units offer a cost-
effective, energy efficient solution to these prob-
lems by reducing heat loss. The installation of a
Screenzone air curtain with energy saving controls
provides a barrier of air that keeps the conditioned
or warm air inside the building. The energy saving
control unit when run under automatic control re-
duces both the power consumption and energy
cost. The key benefits of the energy saving con-
trols are:
Simple installation — wiring connections are
direct to the controller, no intermediary ter-
minal blocks are required.
Easy programming — the user sets two tem-
peratures and three fan speeds enabling the
air curtain to vary the required heat output
depending on the selected temperatures.
In conjunction with a door switch the control-
ler can be set to change the fan speed when
the door opens.
Compatible with Building Management Sys-
tems
The air temperature sensor can be mounted
outside or inside to enable temperature con-
trol.
No specialist commissioning required.
Reduced payback period of your investment
thanks to the energy saving generated.
Cabling from the air curtain to the program
panel requires only 3 core cable.
One control unit can control up to six air cur-
tains.
A centralised control unit can be mounted up
to 50m from the air curtain.
This type of temperature control is suitable for
open door trade or frequently used doorways in
large areas where heat from the heater would not
affect the indoor ambient temperature. The control-
ler can be set to vary the heat output depending on
the outside temperature. This type of control
shouldn’t be used in small areas, between two sets
of doors or small shops. In this configuration the
heater is running on a preset speed and variable
heat output depending on two user selected tem-
peratures and (range 0 to 30 degrees C) If
the outside temperature around the sensor falls
below the selected temperature the heater will
be working on 100% heat output. If the tempera-
ture is above the selected temperature but be-
low selected temperature the heater will be
working on 50% heat output. If the outside temper-
ature is above the user selected temperature
there is no heat output but the fan is running on a
selected speed. For example:
t1 - 16 deg C
t2 - 7 deg C
Temperature below 7 - full heat
Temperature above 7 but below 16 - half heat
Temperature above 16 - no heat, cold blow only
This type of temperature control is suitable when
the heater is used in small areas, between two sets
of doors or in small shops where running the heater
on full heat setting for a longer period will bring the
room temperature to a very high level. With a tem-
perature sensor mounted inside the building the
controller can be set to vary the heat output de-
pending on the inside ambient temperature. In this
configuration the heater is running on a preset
speed and variable heat output depending on two
user selected temperatures and (range 0 to
30 degrees C) If the ambient temperature around
the sensor falls below the selected temperature
the heater will be working on 100% heat output. If
the temperature is above the selected tempera-
ture but below the selected temperature the
heater will be working on 50% heat output. If the
ambient temperature around the sensor is above
the user selected temperature there is no heat
output but the fan is running on a selected speed.
For example:
- 20 deg C
- 15 deg C
Temperature below 15 - full heat
Temperature above 15 but below 20 - half heat
Temperature above 20 - no heat, cold blow only
Both types of control can be used in conjunction
with a door switch which will change the fan speed
as selected by the user. In the case where the door
switch is not used a standard one pole switch can
be used to change the fan speed in auto mode. The
heater can be also connected to a Building man-
agement system or 24h 7day timer to run the heat-
er in fully automatic mode. If the heater is not con-
nected to a Building management system or timer
the available terminals can be connected to a
standard one pole switch (light switch) to turn the
heater off or on.
11
41000664 Iss 05
All units should be installed horizontally directly
over the door opening. It is recommended that the
air curtain is installed on the inside of the building,
within the open room space against a wall or
ceiling.
Care must be taken to allow complete free air
movement into the inlet grilles of the unit to ensure
correct working operation of the air curtain. The
discharge opening should be as close to the top of
the door as possible and to cover the entire door
width.
Units can be mounted adjacent to each other to
cover the full door opening across wider
entrances.
These units are designed for surface mounting
and should not be placed into a ceiling void, due
to possible obstruction of airflow and difficulty in
routine cleaning and maintenance.
These units are suitable for connection to a 415
Volt, 50Hz 3 phase and neutral supply.
Electrically heated models consume 18kW &
24kW at 415 volts when switched to the full heat
position depending on their model and capacity
size.
The appliance shall be connected to the supply
via an appropriate switched fused double pole
isolator having a contact separation of greater
than 3mm. Test for correct operation and refit the
cover.
For connection to the mains supply it will be
necessary to remove the outer cover from the unit.
After removing the cover you will note the mains
terminal block and it will be necessary to connect
the mains supply and the lead from the remote
switch box prior to refitting the cover. Wire in
accordance to diagrams in section 4.1 to 4.3.
For safety reasons, a sound earth connection
must always be made to the unit before it is put to
use. The unit should be wired in accordance
with IEE Regulations for the Electrical Equip-
ment of Buildings.
It is the sole responsibility of the installer to ensure
that the points of attachment to the building are
sound. Consultation with the consultant/architect or
owner of the building is recommended to ensure
that a sound, mechanically stable installation is
achieved.
All attachments must be capable of supporting the
weight of the product detailed in Section 3.
Remove all packaging. Remove decorative cover.
Undo screws securing the outlet (not Chassis ver-
sion).
Note All outer metal surfaces are covered by a
protective plastic film, which must be removed
before final fixing and operating of the unit.
Carefully remove the air curtain front cover by
removing four screws.
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41000664 Iss 05
It is recommended that the chassis is removed
from the back box to avoid having to support the
weight of the product during installation.
To separate the chassis from the back box undo
and remove the nuts shown and lift the chassis
away from the back box.
The product can be installed using either M12
drop rods or fastened direct to the wall using
appropriate sized fixings suitable for the wall
surface and the weight of the product.
To wall mount the product, position the back box
against the wall at the desired mounting height
and mark through the holes in the back box
brackets to enable the wall to be drilled for the
appropriate fixings.
Drill the wall then fix the backbox in position. Lift
the chassis (using lifting gear if necessary) onto
the studs on the back box brackets. Refit and
tighten the nuts.
Holes are provided in the back box for the feed
cable to enter the case. Choose the appropriate
hole top rear to suit the installation.
Fit suitable cable gland for size of cable.
To install the product using M12 drop rods follow
instructions from step 4. If the decorative tube is to
be used, fit this over the drop rod, then pass the
drop rod through the back box brackets.
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41000664 Iss 05
Adjust the product to the required height and
ensure that it is fitted level using a spirit level
across the back box as required.
Tighten the lock nuts and re-assemble in reverse
order. Adjust outlet to required angle to give
desired performance, and tighten outlet screws.
The Electronic base unit is pre-installed inside the
air curtain. All the external electrical connections
are via screw terminals onto this base unit.
The program keypad is installed on a separate
facia plate and connected to a surface mounted
back box in a suitable location. Please see Figure
5.
Alternatively, the program panel can be flush wall
mounted with the addition of a suitable conduit
box MK part number 861 ZIC or equivalent.
The distance between the base unit and the
program panel can be up to 50m maximum.
With case removed, connect the electrical supply
and program panel interconnecting wiring to the
relevant terminals on the controller base unit (See
wiring diagrams section 4)
Cable
Entries
13.35
43.5
87.0
60.3crs
THIS AIR CURTAIN SHOULD NOT BE
INSTALLED WHERE THERE IS A
CORROSIVE ATMOSPHERE.
14
41000664 Iss 05
To obtain the best results from the heater, it is
essential to avoid the accumulation of dust and
dirt within the unit on the air inlet and discharge
grilles. For this reason regular cleaning is
necessary, paying particular attention to the
removal of dirt build up on the rotor blades.
Cleaning of the fan is best carried out with a soft
brush.
A single drop of light oil should be applied to the
motor bearing from time to time.
The product should be serviced annually.
Servicing shall be undertaken by a competent
person
Undo screws securing the grille.
Adjust the grille by turning the screw inside with
an allen key.
Remove 4 screws
securing the top
of the case and
remove (not
Chassis version)
Slacken two bolts on
both ends.
Remove three bolts
securing the access
plate.
Carefully hinge down the access plate.
Note Take the weight as access plate swings down.
With a soft brush clean away any dust from the
motor and elements.
Check all connections and components for
soundness or signs of deterioration and replace as
necessary.
Re-assemble and test.
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41000664 Iss 05
100535Motor
900078
Contactor
(where re-
quired)
100541100540Rotor Left Hand
100538100537
Rotor Right
Hand
900001
Thermal cut-out
x 2
Rating 18kW 3Ph 24kW 3Ph
SE 100842 -
Length 2.0m -
HE 100527 100528
Length 1.5m 2.0m
Element assembly
AC-ACR-PANELProgram Keypad
AC-ACR-PCBBase Unit
SC-OS
Outside Air
Sensor
Due to the nature of it’s construction, it is not advisable to repair damaged electronic components
on either the base unit or Electronic program panel
100541
100538
16
41000664 Iss 05
If the air curtain does not operate after running
through the detail provided in Section 6, then a
suitably competent service engineer should be
called to identify the nature of the fault.
Note The manufacturer operates a service
function from the address provided in these
instructions.
All Air Curtains are fitted with fuse protection and
motor thermal protection.
Other faults in relation to the element, motor and
wiring should be identified using conventional fault
finding techniques.
In the event that electrical components are
replaced, please ensure that electrical safety
checks in accordance with the regulations in force
in the country of use are undertaken.
For the service engineer, please note that there is
a thermal cut-out incorporated in the air curtain
which needs to be manually reset. The cut-out is
located near to the mains terminal block.
Re-setting the thermal cut-out may help to identify
the nature of the fault however we do not
recommend re-set without a thorough
investigation into why the cut-out operated.
If the air curtain goes into thermal trip (overheat)
the Electronic panel keypad displays an ‘ERR’
code. Refer to air curtain instructions to remedy.
The electronic control base unit is protected from
any short circuit on the air sensor or heatsink
sensor as the short circuit will cause the
temperature to go high and trigger over
temperature alarm.
Polarity: Use a multimeter to check correct
polarity between all three cores i.e. that +12V
goes to +12V, DATA goes to DATA, and GND to
GND.
Continuity: Use a multimeter to check continuity
between each end of all three cores.
Short circuit: Use a multimeter to check that
there are no short circuits between any of the
three cores.
This test should be done with both ends of
the cable disconnected to avoid false readings.
Plugs:
Check that the correct length of insulation has
been stripped from each core.
Check the tightness of the cables in the plugs.
-
17
41000664 Iss 05
Warning
Ensure electrical power is isolated from the
product.
Follow steps 1 - 4 below.
Remove 3 screws securing fan
bearing plate to access panel.
Carefully remove plate with
bearing housing from rotor bear-
ing.
Slacken the grub screw secur-
ing rotors to the motor shaft, remove rotor.
Repeat steps 1 - 2 for opposite rotor.
Disconnect the wires from the motor to the mains
terminal rail.
Remove the bolts securing the motor to the
chassis.
Replace motor as required.
Refit in reverse of previous steps and test the
performance of the product.
18
41000664 Iss 05
For access follow steps 1 to 4 above.
Carefully remove connections to element, noting
wiring configuration.
Remove two bolts securing elements.
Lift out element cartridge, replace as required.
Refit in reverse order (including (motor refit on
previous page)
Test performance of the product.
19
41000664 Iss 05
The button will allow you to navigate.
The button will allow you to increase the setting.
The button will allow you to decrease the setting.
On first power up, the display panel will have the
following default settings:
F. 0 (no fan)
H. 0 (no heat)
1. 16 (ºC. Heat set point - Auto mode only)
2. 7 (ºC. Half heat set point - Auto mode only)
D. 2 (fan speed in door switch mode)
Note: Subsequent power ups will retain any entered
settings in the display panel internal memory.
Press the or buttons to toggle between the
‘F’ (Fan), ‘H’ (Heat) and On/Off Parameters.
Prefix ‘F’ denotes the . This can be either
1: slow ; 2: medium or 3: fast speed. 0 setting denotes
the unit is .
To alter the current speed, press the button. The
value will start flashing.
Press the or buttons to increase/decrease the
desired setting.
Press the button to confirm the new setting. A de-
lay of 7 seconds will return to the original display.
Prefix ‘H’ denotes the setting. This can be either
1: low heat; or 2: high heat. 0 setting denotes the unit is
set at fan only.
To alter the current setting, press the button. The
value will start flashing.
Press the or buttons to increase/decrease the
desired setting.
Press the button to confirm new setting. If not
pressed within 7 seconds will return to the original dis-
play.
--
20
41000664 Iss 05
The next parameter will either turn the unit On or Off.
To turn the unit Off, press the button. ‘On’ will start
flashing.
Press the button. ‘Off’ will start flashing.
Press the button to confirm new setting.
To turn the unit On, press the button. ‘Off’ will start
flashing.
Press the button to alter to ‘On.
Press the button to confirm new setting. A delay of
7 seconds will return to the ‘F’ Fan parameter.
To switch the heater ‘On’ or ‘Off’ automatically the ter-
minals B1 and B2 can be used to connect the heater to
a Building management system or 24h 7day timer. If the
heater is not connected to a Building management sys-
tem or timer a standard one pole manual switch (light
switch) can be used.
In this configuration the heater is running on a preset
fan speed (1: slow ; 2: medium or 3: fast speed. 0 set-
ting denotes the unit is in stand-by mode) selected in
manual mode before entering auto mode setting and
variable heat output depending on and , two user
selected temperatures.
(Range: 0 - 30 degrees).
Auto mode can be used in conjunction with a door
switch or movement sensor connected across terminals
D1 and D2. When the switch is activated the heater is
running on a pre-programmed speed and heat setting.
See 11.3.3
To access the auto mode setting, first ensure that the
display is in the (H) HEAT parameter.
Press and hold the b button for 5 seconds.
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