M C Series – Warm air heaters – Installation, Operation and Maintenance Manual
10
Ed.
04/2007
1.3 MANUFACTURING CHARACTERISTICS
M C series heaters are supplied with:
-
atmospheric burner
, patented by ROBUR, in AISI 430 stainless steel
-
combustion product extractor
for forced draught of combustion products
- cylindrical
combustion chamber
in AISI 409 stainless steel, manufactured with
non-welded seams
-
heat exchanger
, patented by ROBUR, in aluminium alloy with high heat
exchange capacity with horizontal finns (air side) and vertical finns (flue side)
-
self-supporting structure
in sheet stainless steel painted with RAL 2008 orange
epoxy powder
-
connector flange
for connection to warm air distribution ducting
-
centrifugal fan
for introducing warm air into the room
-
control box
with lock out signal and reset button
CONTROL AND SAFETY COMPONENTS
- 100 °C manual reset
limit thermostat
to protect against overheating of the heat
exchangers
- manual
reset
safety thermostat
to protect against overheating of the electrical
panel
-
fan thermostat
to control the start-up of the fan only when the exchangers are
hot, to prevent cold air being blown into the room
-
differential manostat
to control the correct expulsion of combustion products
-
gas electro valve
: if a safety device intervenes (e.g. limit thermostat, safety
thermostat, etc.) the gas valve is locked out electrically with the consequent block
of gas flow to the burner.
•
Voltage: 230
V
-
50
Hz
•
Operating temperature range:
0 °C up to +60 °C
•
Model:
SIT 830 Tandem (for models 20 and 30)
SIT 826 Tandem (for models 60)
-
electronic flame control unit
for controlling the ignition of the main burner and
checking for presence of a flame by means of an ionisation-based electrode. If no
flame is present, the device causes the gas valve to be closed.