Technical data
infraSchwank D / calorSchwank D - shape U 
  35 
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change 
Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change Version 004 infra_calor D shape U Australia 43/13 Technical specification subject to change 
Gas filter - groups 
To avoid technical problems with the gas combination 
valves which are caused by pollution of dust or rust 
coming out of the gas pipe should to be mounted a  
gas filter-group ¾“ (gas filter + premounted double 
nipple) for tube heater 40U. 
For tube heaters 15-30U a similar gasfilter-group 
½“ has to be ordered in case the gas pipe is made of 
black steel (welded). 
Assembly instruction 
Direct installation between flexible gas pipe and valve 
burner unit, with a slight radial slope for better cleaning 
the filter bottom! In case of strong polluted filter pad use 
the corresponding spare part set for gas filter. 
Pay attention to the flow direction of the filter! 
Fig 41: Mounted gas filter-group at tube heater
gas filter-group Rp ½“ 
for 15-30U 
code no: 192 0756 0
gas filter-group Rp 
3
/
4
“ 
for 40U 
code no: 192 0757 9










