background image

 

 

 

 Cover removed 
 
 
CONTROLS/ACCESSORIES 
A  remote  switch  module  is  supplied  as  standard  with  the 
HCA door curtain.  A wiring diagram is enclosed with these 

instructions and should be studied prior to installation. 
 
Remote Switches 
The remote switch module provides on/off, high fan/low fan 
and high heat/low heat settings.  It is not possible to select 
low fan/high heat as overheating may occur. The module is 
supplied  loose  for  on-site  fitting.  Remote  wiring  is  not 
provided by BN Thermic. 
 

Over Temperature Protection 
Two  thermal  switches  are  fitted.  One  thermal  switch 
provides the fan over-run. The fan will either continue to run 
after the unit is switched off until the air temperature in the 
casing drops below 50°C or will switch the fan back on after 
the  unit  is  turned  off  should  the  case  temperature  rise 
above  50°C  for  a  short  period.  The  other  manual  reset 
thermal  switch  provides  the  safety  cut  out.  If  the  air 
temperature in  the casing rises  above 60°C  this  will cause 
the safety cut out to trip. The safety cut out can be reset by 

pressing  the  red  button  located  on  top  of  the  unit.  If  the 
safety cut out trips regularly; check the operation of the fan 
and that the airflow through the unit is not restricted by dust 
and  the  inlet  or  outlet  are  not  obstructed.  If  the  problem 
persists please contact BN Thermic. 
 
Wall Hanging Bracket 
All models come complete with a hanging plate for vertical 
wall surface mounting. 

 

 

 

 Remote switch module 

 

 

Electric heating 
elements 

Motor/electrical connection 
enclosure 

Summary of Contents for HCA

Page 1: ...consist of a casing motor tangential fan s electric heating elements and electrical connection box Each door curtain is supplied with a wall mounting bracket and a remote switching control box as stan...

Page 2: ...off until the air temperature in the casing drops below 50 C or will switch the fan back on after the unit is turned off should the case temperature rise above 50 C for a short period The other manual...

Page 3: ...m above connection details View from front return air inlet grille View from below air supply discharge grille View from side All dimensions in millimetres Model Dimension A HCA 09 1113 HCA 13 1621 HC...

Page 4: ...t be dropped or suffer impact in any circumstances Storage Door curtains should be stored in clean dry conditions Any packaging should not be removed until the door curtain is required for installatio...

Page 5: ...n and operation observe minimum spacing to wall and soffit surface shown in diagram 4 Position of the power supply connections are to be taken into consideration during installation 5 Connect electric...

Page 6: ...Holes to accept mounting bracket fixing bolts tabs to be folded out on site Slots to accept mounting bracket Wall mounted installation 110mm minimum A Locking washers provided M4 fixing bolts provide...

Page 7: ...stances 110mm minimum 18mm Tabs to be folded out on site View from above Ceiling suspended installation View from above electrical connections Safety cut out manual reset switch 2 off 25 holes to acce...

Page 8: ...8...

Page 9: ...e switch You MUST connect the live connection in the timer to Terminal 7 inside the Air curtain If you don t there is a possibility that 400v may be present inside the time switch making it unsafe Whe...

Page 10: ...e 0 75mm 3 core cable 3rd core if earth connection required You MUST first remove the link between A1 and B4 on switch S1 On Off Switch and replace with the thermostat as shown in the drawing below Wh...

Page 11: ...lements do not require any maintenance other than a visual inspection however when cool they may be vacuumed clean to remove dust using a soft bush attachment Fuse The mains inlet connector incorporat...

Reviews: