REXNOVA ISA 20 BITHERMAL, Installation, Use And Maintenance Manual, Page: 19 / 36

17
DIAPHRAGM
COAXIAL SYSTEM Diaphragm diameter
FROM LENGTH TO LENGTH 20kW BITHERMAL Isa
0.5 meters 1 meter 37 mm
> 1 meter 2 meters 41 mm
> 2 meters 3 meters 41 mm
> 3 meters 4 meters 44 mm
> 4 meters 5 meters --
ALWAYS CONNECT A MINIMUM FLUE EVACUATION AND INTAKE SECTION FOR
BOTH SYSTEMS OF AT LEAST 0.5 METERS (COAXIAL PIPE L= 0.5m + 90° ELBOW PIPE)
FOLLOW APPLICABLE LEGISLATION AND REGULATIONS TO THE LETTER
INSTALL AIR INTAKE AND FLUE EVACUATION SYSTEMS CONFORMING TO THE
SPECIFICATIONS GIVEN ON THE TECHNICAL DATA PLATE AND OBSERVE ANY
LIMITATIONS ARISING FROM APPLICABLE LEGISLATION AND REGULATIONS TO THE
LETTER.
ONLY USE APPROVED COMPONENTS FOR AIR INTAKE AND COMBUSTION GAS
EVACUATION SYSTEMS WHICH ARE OF THE CORRECT DIMENSIONS AND PURPOSELY
DESIGNED AND MANUFACTURED FOR THE PURPOSE.
FOLLOW INSTALLATION INSTRUCTIONS TO THE LETTER.
INSULATE ANY FLUE SECTIONS WHICH WILL BE EXPOSED TO LOW TEMPERATURES.
TAKE MEASURES TO AVOID THE FORMATION OF EXCESSIVE CONDENSATION. ENSURE
THAT ANY CONDENSATION DOES NOT EVEN MINIMALLY AFFECT ANY INTERNAL
PART OF THE BOILER.
WHENEVER NECESSARY, PLACE APPROPRIATE CONDENSATE TRAPS ON THE FLUE
EVACUATION LINE:
BEFORE COMMISSIONING THE BOILER, MAKE SURE THAT:
• THE FLUE EVACUATION AND AIR INTAKE DUCTS ARE PERFECTLY SEALED
• THE FLUE EVACUATION AND AIR INTAKE DUCTS ARE CORRECTLY POSITIONED
AND FASTENED
•.THERE ARE NO MECHANICAL, THERMAL OR CHEMICAL STRESSES ON THE LINES
WHICH COULD EVEN MOMENTARILY COMPROMISE THEIR INTEGRITY.
INSTALL SYSTEMS TO ABSORB ANY THERMAL EXPANSION WHEN THE SECTIONS OF
FLUE DUCTING ARE LONGER THAN THE MINIMUM SPECIFIED LENGTHS.
AIR INTAKE AND COMBUSTION GAS EVACUATION SYSTEM: WARNINGS