Datasheet Content
EUROBOX SERIES
TYPES CM... SM... MM...
Application
AUTOMATIC GAS BURNER CONTROL
This range of electronic gas burner contrai systems has
SYSTEMS FOR GAS BURNERS AND GAS been designed specifically for atmospheric and fan assisted
BURNING APPLIANCES WITH OR burners for intermittent operation (systems for non
WITHOUT FAN permanent operation ).
Ali these contrais are provided with non-volatile lock-out,
which means that a restart from the safety shut-down
condition can only be accomplished by a manual reset of
the system.
The automatic burner contrai units of this series are suitable
for:
-combi boilers
-heating boilers
-warm air generators
-radiant heaters
-water heaters
Due to the design and the variety of models they can be
used also for the automation of ovens, cookers and in
general in gas firing installations with atmospheric burner.
Features
Table 1 shows the main features of this series. Other
important features are:
- EC - Type certification (CE Reg. N° 63AQ0625) in
accordance with Gas Appliance Directives 90/396 and
93/68;
- in accordance with EN298 (European standard for
automatic gas burner contrai systems);
- flame monitoring by the rectification property of the
flame: ionization;
- two independent safety contacts in series on the gas
valve output;
- electrical service lite at max. loading >250.000
operations;
- inbuilt or remote reset facility;
- inbuilt ignition device completely of solid state design
and high efficiency;
- auxiliary contact for low power ignition or main gas valve
contrai for intermittent pilot systems (this contact is not
isolated from the main supply voltage by reinforced
isolation, therefore the relay contact is not suitable to
supply SEL V circuits - Safety Extra Low Voltage, e.g.
24V);
- different connections and fixings.
TABLE 7 BORNER RESET CONNECTION
c
O N
C
7 O ao
L L V N
O V ~ Û w
d U U ~ ~ 'Ç ~ O
O
—
E
a
L
a
L
a
~
~ m
d ~
ô ~
O
v c
:~ a ~ z
~ î
~
d O O ~ ~ ~ O ~ ~n O Ÿ Ÿ Ÿ Ÿ
~ ~ ~ ~ ~ ~ X ~ ~ p û U U U U
~O LI O Q N d = U O N N tin (fin
CM 197 (B) (A) AMCLXN
SM 191 (A) AMCLXN
SM 192 (B) (A) AMCLXN
CM 381 (B) (A) FMCLXN
CM 391 (A) FMCLXN
SM 152 (B) (A) AMCLXN
SM 592 (B) (A) AMCLXN
MM 797 (B) (A) AMCLXN
MM 192 ~ (B) (A) AMCLXN
NOTE: (A) Box type xxxxx.1 - xxxxx.2 (1):This contact is not isolated from the main supply voltage by reinforced
(B) Box type xxxxx.3 - xxxxx.4 isolation, therefore the relay contact is not suitable to supply SELV circuits -
Safety Extra Low Voltage, e.g. 24V.
(2) : Flame failure during TS causes spark restoration.
TECHNICAL DATA -Minimum ionization current: 1.2E~A
Supply Voltage: 230V-50/60Hz on request: 0.5µA
on request: 110/120V-50/60Hz -Recommended ionization current: 3 = 5 times the
Operating temperature range: -20°C +60°C minimum ionization current
Amblent humidity: 95% max at 40°C -Max. length of the Gable: 1m
Protection degree: -Minimum insulation resistance of Gable and flame detector
socket NG: IP 40 (alter installation) device to Barth: z 50M52
socket P/R IP 00 -Max. parasitic capacitance of
Times: detection probe: s 1 nF
-Prepurge or waiting time (TW): 1,5/3/5/10/20/30/40 s -Max. short circuit current: < 200E~A AC
-Safety time (TS): 3/5/8/10/20/30/40/50/60 s Ignition:
-Drop out time on running flame failure: <1s -Ignition voltage: 8 KV at 30pF loading
The times given on the burner control label correspond to -Repetition rate: 25 Hz
the values guaranteed. The actual values differ slightly from -Max.length of the Gable: 2m
the values given, pre-purge and waiting times are in fact -Spark gap recommended: 2-4 mm
longer and safety time shorter than their nominal values. -Consumption: 2,5 VA
Power cônsumption, at starting up: -Spark energy: 15 mJ
atmospheric burner 10 VA Weight:
atmospheric fan-assisted burner 12 VA -with socket P or R: 220 g
Power consumption, running: -with socket NG or MG: 275 g
atmospheric burner 7 VA Controls for special applications:
atmospheric fan-assisted burner 9 VA On request it is possible to meet special requirements
Contact rating: I max concerning times, repetition rate of the sparks, minimum
-Thermostat: 4 A cos cp = 0.4 ionization current and operating cycle.
-EV1: 0.5A coscp =0.4 CONSTRUCTION
-EV2: 0.5 A cos cp = 0.4 The enclosure made of plastic material protects the control
-EVG: 0.5 A cos cp = 0.4 from mechanical damage, dust and dirt from the conditions
-Fan: 1 A cos cp = 0.4 of installation.The particular construction, consisting of four
-Alarm: 0.5 A cos cp = 1 printed circuit boards in order to forma "box" structure, has
-Auxiliary contact: 0.5 A cos cp = 0.4 allowed a reduction in the volume of the control unit.
-Externat ignition: 1.5 A cos cp = 02 A varistor protects the control from voltage transients on the
Max. length of the Gables of mains supply. An internat fuse protects the relays of the
externat components: 1 m control box in case of short circuits on the outputs (valves,
Fuse rating internat: 4 A Fast fan and lock-out signal). This is not an accessible fuse and
Fuse rating externat: 3.15 A Fast the control must be protected with a fuse of the fast blow
Flame control: type suitable to the Joad connected and never exceeding
The ionization flame detector device makes use of the 3.15A.
rectification property of the flame. Overall Dimensions
The ionization flame detector device is not a safe to touch The control units of the EUROBOX series Gan be supplied
output (no provision, with protective impedances). with different executions of the enclosure depending on the
functions and the fixing system required.
Enclosures are available with or without reset button and screw terminal suitable for the CM381 control unit. Socket
can be provided or not with fixing brackets on the sides. type P differentiates from type R on positions 8…
