Fantini Cosmi A41 Bedienungsanleitung

Fantini Cosmi Nicht kategorisiert A41

Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für Fantini Cosmi A41 (4 Seiten) in der Kategorie Nicht kategorisiert. Dieser Bedienungsanleitung war für 13 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet

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LEVEL CONTROLS A41 - A42
new execution with direct hand control on the floating-ball
For steam boilers up to 16 Bar
Sizes: len 350 - high 215 - br. 158
Fig. 1
Sizes: len 365 - high 235 - br. 158
Fig. 2
USE
Level Controls Group A4 are used to control fluids level into boilers
and tanks with a pressure up to 16 bar.
1. Dual electric control mechanism permits supervisory control of
feed pump or alarm signal, where level is not restored by feed
control.
2. Safety bulb is of change-over type (see diagram No 4); for this
reason it can be used both as alarm signal by a bell, lamp or other
device and as automatic burner shut down protection.
OPERATION
Boiler Water Level Controls Group A4 consist of a floating-ball
connected with metal rod that controls, throug a special level
system unit, two mercury bulbs making electric contacts. Control
unit is coupled with contacts unit by a device allowing level
adjustment jumps from 35 to 100% of the maximum level admitted
by the equipment. Every desired adjustment is possible.
FEATURES
Level Controls Group is available in two standard types, i.e. A4 A41
and A42 respectivelly.
TYPE A41 Floating-ball in stainless steel AISI 304-iron flange and
counterflange for vessel welding-metal bellows guaranteed for
pressure uo to 355 lbs. - cast iron body of high impact anti-resilient
strength - special mercury bulbs for high temperature - ceramic
terminal block - adjusting device for level jump from 35 to 100% of
maximum level - armoured and enclosed manufacture with
protected opening for outside visibility of mercury bulbs - armoured
output cables.
TYPE A42 Same design and manufacture of Type A41, but coupled
with cast-iron body, floating-ball protection with female nipples 1"
gas for pipe connection between fluid area and steam or air zone of
the boiler.
ELECTRICAL FEATURES
Via dell'Osio, 6 20090 Caleppio di Settala MI
International calls Tel.++39 02 95682222 Fax.++39 02 95307006
E-mail: export@fantinicosmi.it http//www.fantinicosmi.com
Level controls type A41A/24E have unterchageable beams: long and short, permitting nominal range adjustement 15 ÷ 50 or 25 ÷ 75 mm (5/8 ÷ 2 or 1 ÷ 3).
Level controls type A41B/24E have mounted floating-ball with inerchangeable beams, permitting nominal range of 50÷210, 65÷305, 95÷370 and 145÷570 mm
Nominal insulation tension Ui 380V~
Contiunuous duty nominal current Ith 6A
Operating nominal current Ie:
220V- 250V~
Resistive load AC-12 - 5 A
Inductive load AC-15 - 2 A
Direct current DC-13 0,2A - -
25 to 50
A41A 25 to 75
55 to 210
65 to 305
A41B 95 to 370
140 to 570
25 to 50
A42A
IP54 5,4
IP54 5,1
IP54 9,3
-25 to 60
-25 to 60
-25 to 60200
20016
16
16
200
TYPE
Max temperature
of the liquid
°C
Level
differential
mm
Max working
pressure
bar
FLANGE CONNECTION
1"BSP female connection
Working
temperature
°C
Protection
degree
Weight
each
Kg.
Box
pcs.
N°
NO
NO SI
SI
NO
NO
LEVEL CONTROL TYPE A41 INSTALLATION
Fix the highest required level point and connect the iron flange of
the Level Control to the boiler so that its horizontal middle line is 25
mm higher than the maximum desired level point (see our diagram
on the right).
1 - Carefully weld inside and outside flange in order to have a
perfect tightness.
2 - Connect the Level Control perfectly vertically relative with its
middle line. Connections and flexible rubes for cables outlet must
result to be downward.
3 - Effect connections by means of insulated conduits suitable for
the Level Control temperature according to the diagrams on page
No 4
IMPORTANT - For a perfect operation of the bulbs it is necessary
that the flange middle line be absolutely vertical.
LEVEL CONTROL TYPE A42 INSTALLATION
Fix the highest required level point and effect connections on the
boiler for conduits of 1" gas, being careful about the following
points:
1 - It is necessary that connection to the liquid area is not influenced
by the feed liquid and therefore avoid connection to feed pipes.
2 - It is necessary that the connection point to the air or steam zone
is far away from the starting pipe to avoid a sinking of the liquid
surface and a possible inner alteration of the level.
Fig. 4
Instructions
(Fig. 3)
(Fig. 4 e 5)
11
125
B
98
25 mm
High level
Fig. 5
3 - Effect careful connections by means of pipes to 1" gas being
careful that the two spans of are pipes be fixed perfectly vertically.
IMPORTANT - It is preferable that the connection pipes to the water
zone is as short as possible because, otherwise, they may cause a
remarkable sinking of the liquid temperature inside the pipes or in
the Level Control. In addition to that, the water specific weight
would consequently be higher.
It may happen that water, if not perfectly pure and clean, influences
the level of the regulator. In this case it is advisable to protect the
water inlet by means of a perforated grid or other devices.
MERCURY SWITCH FOR FEEDING (A)
(Terminals 1 and ). are used normally, for 2
boiler feed control. Bulb is mounted on "A"
its corresponding support and regulated in
such a way that it is open at high level (this
position is determined at the moment the
instrument is mounted as per preceding
instructions) and it closes again when level
decreases 5/8" or more, according to the
regulation effected.
MERCURY CHANGE-OVER SWITCH FOR
SAFETY AND ALARM "B"
(Terminals and3-4 5-6) - It is fixed on its "S"
support by means of friction device which
allows to regulated the operation setting in
accordance with the bulb and with the "A"
requirements. In case of a boiler, bulb "B" has to
be off set a few degrees in relation with bulb
"A", i.e. it has to be tilted to such an extent that
when level decreases, it may transfer at a pump
lewer level operation if the latter does not work
as it should. The greater is the differential level
available for the alarm intervention, the smaller
the fall regulated by the bulb "A".
IMPORTANT: After the regulation of the two
mercury bulbs make sure that bulb "B" effects a
lower level its complete transfer stopping the
burner and sounding an alarm at the desired
level.
To regular of the level drop loose screw "V" and shift the plate towards "min" or
"max", in accordance with the requirements.
1 - MAXIMUM LEFT POSITION (Fig. 7-1)
When screw is on the extreme left the level drop is at the minimum admitted "V"
value. After this adjustment bulb may be tilted a few degrees to one side or to "B"
the other in relation with the transfer position of bulb , depending on whether "A"
you want safety operation at a above or below level operation of bulb or "A"
whether you want an alarm at level increases. In case of a boiler bulb must of "B"
course be adjusted for transfer after bulb when level decreases."A"
2 - MIDDLE POSITION (Fig. 7-2)
When the screw is located in the middle position the level drop is in midrange;
this position also allows you to use bulb for alarm and safety functions during "B"
the burner shut down. For your information: when the screw is in the middle
position you obtain a level difference of about 1-3/8" between the stop and start
of the pump and this allows you to use the safety and alarm for an abnormal level
decrease of about 5/8". This position represents a typical and safe adjustment.
3 - MAXIMUM RIGHT POSITION (Fig. 7-3).
IMPORTANT
When the screw is located on the extreme right, the level drop is at the maximum
admitted value. Please use this position rarely, as bulb cannot be tilted "B"
further in relation with bulb and on account of this, the two bulbs rotating "A"
together do not allow you a safety margin. In this case you may use bulb for "B"
alternate functions in place of those normally designated for safety.
INSTRUCTIONS FOR SETTING UP WATER LEVEL CONTROLS
ADIUSTMENT AD DF THE LEVEL DROP OF BULB "A" CONTROLLING THE
FEED PUMP
Device for the regulation of the
level drop.
Mercury switch
(feed)
Stainless steel ball
testd 30 bar
Stainless steel operating arm
Stainless steel, double-wall
belloys
Pivot of hardened and ground
steel
Pin
Friction
clutch
Mercury change-over switch
(safety-alarm)
Numbered terminal-board
in ceramic material
BULBO B
BULBO A
Fig. 6
Fig. 7
Range pin
Range pin
Range pin
V

Produktspezifikationen

Marke: Fantini Cosmi
Kategorie: Nicht kategorisiert
Modell: A41

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