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22 

 

61000663 Iss 03 

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. 

 

 

The  heater  may  be  operated  in  manual  mode  how-

ever you will not be able to benefit from the energy 

saving features which are available in auto mode. 

 

11.3 Automatic Control 

11.3.1 Auto Mode 
 
The controller can be set to automatic control only 

when  used  in  conjunction  with  a  temperature  sen-

sor. 

 

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 

t1

  and 

t2

,  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. 

 

 

Summary of Contents for ScreenZone HE8409

Page 1: ...ng Details 4 Energy Saving Configuration 5 Installation Details 6 Servicing Maintenance 7 Spare Parts 8 Fault Finding 9 Parts Replacement 10 User Instructions 11 WARNINGS 1 This appliance must only be...

Page 2: ...red in accordance with I E E regu lations 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...

Page 3: ...10 2 Rotor and Motor Replacement 11 User Instructions 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 1 Installation...

Page 4: ...imensional detail mm Size HE8409 HE8406 HE8412 HE8418 A 253 B 1220 1520 2020 C 1182 1482 1982 D 454 E 395 F 1205 1505 2005 G 1242 1542 2095 H 160 J 200 2 1 Air Curtain DIM F DIM G DIM C DIM B DIM A DI...

Page 5: ...ater 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 fo...

Page 6: ...Bottom of base unit Terminals N L1 L2 L3 Separate din rail E N L1 L2 L3 Control terminal block position Right side of base unit terminals 12V DATA GND Air Data Air volume Low speed m h 1164 1475 2013...

Page 7: ...Installer Wiring Electrically Heated 9 12kW THREE PHASE ONLY 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 screen...

Page 8: ...15A slow blow Protection External circuit breaker with the appropriate rating should be installed for the protection of the installation 4 2 Installer Wiring Electrically Heated 18kW THREE PHASE ONLY...

Page 9: ...AC2 T2 AC1 T3 and AC2 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 Pcb Terminal Description L1 Heater Elem...

Page 10: ...REE PHASE ONLY 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 connecte...

Page 11: ...rked 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...

Page 12: ...e around the sensor falls below the selected t2 temperature the heater will be working on 100 heat output If the tempera ture is above the selected t2 temperature but be low t1 selected temperature th...

Page 13: ...an 3mm Test for correct operation and refit the cover For connection to the mains supply it will be necessary to open the hinged lid from the unit The base unit is located on a base plate It will be n...

Page 14: ...situ Step 6 Either drop rods or catenary wire available from manufacturer can be used to fasten the air cur tain to the ceiling support structure Note When using drop rods the casing mounting brackets...

Page 15: ...l 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 6 5 Installation Wiring Wit...

Page 16: ...arried 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 pe...

Page 17: ...or Right Hand Thermal cut out x 2 Element assembly AC ACR PANEL Program Key pad AC ACR PCB Base Unit SC OS Outside Air Sensor Due to the nature of its construction it is not advisable to repair damage...

Page 18: ...t 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 9 3 Electronic Controller If the air curtain goes into...

Page 19: ...fixing screws Locate and remove element fixing screws by inserting a screwdriver through the hole indicated below Step 4 Lift out element cartridge replace as required 10 2 Rotor and Motor Replacement...

Page 20: ...the motor shaft Step 7 Disconnect motor facing clips 2 using a large screwdriver and exerting downward pressure A sharp tap can help in releasing the clip Disconnect the wires from the motor to the m...

Page 21: ...Parameters Prefix F denotes the FAN SPEED This can be either 1 slow 2 medium or 3 fast speed 0 setting denotes the unit is OFF To alter the current speed press the button The value will start flashing...

Page 22: ...d in manual mode how ever you will not be able to benefit from the energy saving features which are available in auto mode 11 3 Automatic Control 11 3 1 Auto Mode The controller can be set to automati...

Page 23: ...erature sensor falls below the t2 value the heater is working on 100 heat output If the temperature is above this value but is below set point t1 then the heater is working on 50 heat output Range 0 3...

Page 24: ...tton for 5 seconds Setting d will appear The air curtain operates as normal under the program of the Fan and Heat settings As the door opens the air curtain changes state to the settings preset in thi...

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