MMI 810.1 / 811.1 Gas burner automatic safety control

Distribuitor: CALOR SRL
Str. Progresului nr. 30-40, sector 5,
Bucuresti tel: 021.411.44.44, fax:
021.411.36.14
www.calorserv.ro - www.calor.ro
MMI 810.1 / 811.1
A Honeywell Company
Gas burner automatic
safety control
For 2-stage forced draught and combi oil/
gas burners
Possible flame detectors:
- Ionization probe
- Infrared flicker detector
INTRODUCTION
The gas burner automatic safety control MMI controls
and monitors blown gas- and combined burners of any
nominal thermal load (tested and certified according to
EN 298).
The automatic safety controls MMI 810.1 models 13, 33 and
35 can also be utilized for burners on fixed hot air heaters
(Direct air heaters according to DIN 4794).
Various types and model designations differentiate the
automatic safety controls with respect to the programme
times, as well as with regard to differing national standards.
TECHNICAL DATA
Operating voltage
Differing frequency
Rating fuse
Power consumption
Max. load per output:
- term. 3
- term. 4, B
- term. 5, 6
total load
Amplifier sensitivity
Minimum required
Ionization current
Flame detector cable
Air pressure monitor
Waiting time for
malfunction remedy
Flame detector
- Ionization probe
- Infrared flicker detector
Weight, incl. base
Mounting position
Insulation standard
Admissible ambient
temperature for controller
and flame detector
Classified acc. to EN 298
TYPES AVAILABLE
MMI 810.1
MMI 811.1
Mod. 13 *
Mod. 33
Mod. 35
Mod. 43
Mod. 55
Mod. 35
Mod. 63
Art. Nr. 0620720
Art. Nr. 0620220
Art. Nr. 0620920
Art. Nr. 0622520
Art. Nr. 0621320
Art. Nr. 0621120
Art. Nr. 0620420
* Must only be used on boilers or other applications where
the 10 second pre-purge time is sufficient to provide at
least 3 volume changes of the combustion chamber.
CONSTRUCTIONAL FEATURES
The automatic control is housed in a non-inflammable,
transparent, plug-in type plastic case and contains:
– Synchronous motor with speed reducer gears as the
drive for the switching cam
– Switching cam with informative programme display in
colour
– 12 times cam drive for controlling the programme
sequence
– Plug-in type circuit boards with the electronic components
0708.21-01-e/04/99
220 / 240 V (-15... +10%)
50 Hz (50 - 60 Hz)
Results in a proportional
deviation of the time.
max. 10 A rapid, 6 A slow
10 VA
2A, cos ϕ 0.2
2A, cos ϕ 0.4
1A, cos ϕ 0.4
5A, cos ϕ 0.4
1 µA
5 µA
max. 20 m cable length
working contact 4 A, 230 V
None
IRD 1020
350 g
any
IP 44
-20° C… +60° C
BTLLXN
program
MMI 810.1
811.1
timings (sec.)
Modell
Waiting time
at start ca.
Max. reaction
time for air
proving switch
Pre-purge time
Pre-ignition
time
T. ignition time
Safety time
Time delay
term.6/term.C
The following important indicating - and operating elements
are located on the front panel of the automatic control:
– Illuminated pushbutton for indication of malfunctions
and reset
– Programme display in colour
– Screw for central mounting
13
33
35
43
55
35
63
6
9
9
9
9
9
6
tlw 3.5
tv1 3
6
24
6
24
6
40
17
20
6
24
5
55
tvz
tz
ts
2
5
3
3
6
3
3
8
5
3
6
3
15
20
5
3
8
5
3
5.5
3
tv2
6
10
10
10
10
10
6
tw
For external resetting, the remote reset device FR 870
(art. No. 70700) can be utilized. (Refer to doc. 750).
1
APPLICATION TECHNOLOGY FEATURES
COMMISSIONING AND SERVICE/MAINTENANCE
1. Flame Monitoring
The flame monitoring can be effected with the following
flame detectors:
- With ionization electrodes in power grids with earthed
neutral conductor, utilizable with gas burners (interference
effects of the ignition spark cannot influence the formation
of the flame signal).
- With infrared flicker detector type IRD 1020 for all types
of burners.
1. Important Remarks
– Before commissioning, the wiring has to be accurately
checked. Faulty wiring can damage the unit and endanger
the safety of the installation.
– The mains fuse has to be selected so that the limit values
indicated under "Technical Specifications" are under no
circumstances exceeded. Non-compliance with this
regulation can have very serious consequences for the
control unit and for the installation in the case of a shortcircuit.
– For safety reasons, at least one control shut-down per 24
hours must be assured.
– The control unit must be plugged-in or -out only when the
mains supply has been disconnected.
– Automatic burner safety controls are safety devices and
must not be opened.
2. Burner Control
– The burner controls features a low-voltage protection. If
the supply voltage dropps below 160 V during operation,
the burner switches-off. When the supply voltage raises
above 180 V, the burner performs a restart independently.
– The automatic burner controls MMI only operate, when a
load is connected to terminal 5. If the fuel valve is
interrupted by an external contact during the pre-purging
phase, a resistance of max. 22 kW, 4 Watt has to be
applied bet-ween the terminals 5 and 8.
– Functional test of the air pressure monitor before the
startup and monitoring of the air pressure during the prepurging time, as well as in the operating condition of the
burner. For normal applications a working contact with a
power rating of 4 A / 230 V is sufficient.
– In the case of the automatic control MMI 810.1, contacts
can be installed between the terminals 1 and 9 (e.g., valve
limit position contacts). These are checked for their
correct closing position when the unit is started up. The
connection 1 - 9 has to be closed during the starting
phase of the automatic control.
2. Functional Check
During commissioning and after an overhaul of the burner,
the following checks have to be carried out:
a) Starting test with closed manual valve and bridged gas
monitor contact:
– The device must go into a fault condition after the
safety period has elapsed.
b) Close the manual valve in operating position with the gas
monitor contact bridged.
– The device must go into a fault condition after a flame
failure.
c) Air pressure monitor contact interrupted:
– Device goes into a fault condition.
d) Bridge air pressure monitor contact before starting:
– Device must not start.
3. Safety
With respect to design and programme sequence, the gas
burner automatic safety controls of the MMI type range
comply with the currently applicable European standards
and regulations.
3. Trouble Shooting
Burner does not go into operation, programme indication
remains:
– Electrical connection defective.
– Thermostat or gas monitor "OFF".
4. Mounting and Electrical Installation
On the base:
– 3 earth conductor terminals with additional strap for the
earthing of the burner.
– 3 neutral conductor terminals with an internal, fixed
connection to the neutral conductor input, terminal 8.
– 2 individual slide-in plates and 2 fixed knock-out apertures
with thread PG 11, as well as 2 knock-out apertures from
below, make the wiring of the base more easy.
Burner does not go into operation, programme indication
rotates continuously:
– Air pressure monitor defective, respectively, not in starting
position. (Working contact must be open).
– Connection term. 1 - term. 9 interrupted
– mains voltage < 180V
The automatic control switches to fault condition shortly
after the start of the pre-purge time (line within the blue
zone):
– Air pressure monitor contact does not close.
– No load on terminal 5.
– Flame signal.
General:
– Mounting position as required, insulation standard IP 44
(splash-proof). The automatic control and sensor should,
however, not be exposed to excessive vibration.
– During mounting and installation, the applicable regulations for installation have to be observed.
Automatic control switches to fault condition during the
operating position (red, resp. green zone):
– Flame lift-off
– Air pressure monitor contact opens
– Flame signal too weak.
2
MMI 810.1 / 811.1
Automatic control switches to fault condition during the prepurging (blue zone):
– No flame formation (ignition missing, valve does not
open, etc.)
– No flame signal or too weak flame signal (flame does not
adhere, poor insulation of the flame detector, burner not
properly connected to the earth conductor).
SCHEMATIC CONNECTION DIAGRAM AND PROCESS DIAGRAM MMI 810.1
max. 10 A rapid
6 A slow
Ph
1
2
A/3
HS
4
ST
GW
5
6
B
RT
7
8
9
C
LW
IS
Z
M
V1
SA
V2
N
tw tlw tv1 tvz tz
ts tv2
SCHEMATIC CONNECTION DIAGRAM AND PROCESS DIAGRAM MMI 811.1
ST
HS
Ph max. 10 A rapid
6 A slow
1
2
A/3
4
RT
SV
5
6
B
7
8
9
GW
C
M
Z
V1
V2
Main switch
Gas pressure switch
Limit thermostat
Control thermostat
Ionization probe
Ignition
Burner motor
Solenoid valve 1st stage
Solenoid valve 2nd stage
Air pressure monitor
External fault indication
Safety valve
tw
tlw
Waiting time at start-up
Max. reaction time
for air proving switch
Pre-purge time
Pre-ignition time
Total ignition time
Safety time
Time delay term.6 / term.C
tv1
tvz
tz
ts
tv2
LW
IS
HS
GW
ST
RT
IS
Z
M
V1
V2
LW
SA
SV
SA
N
tw tlw tv1 tvz tz
ts tv2
IRD CONNECTION
IRD
1020
blue
term. 8
black
term. 2
brown
term. 9
SCHEMATIC DIAGRAM MMI 811.1
MMI 810.1 / 811.1
SCHEMATIC DIAGRAM MMI 810.1
3
MMI WITH BASE
MEASUREMENT OF THE FLAME SIGNAL
5
2
MMI 810.1 / MMI 811.1
67
E
91
PG 11
+
24
The signal should
be greater than 5 µA
Slide-in plate
24
16
30
Earth
0 - 10 µA
0 - 100 µA
The Satronic Ionimeter
is ideal for making
this measurement.
30
M4
30
57-60
ø 16 mm,
cable entry from below
HOLDER M93
IRD 1020
3
ø13.5
21.8
35
44
50
29
14
4.5
26
35
44
Reset button
25
16
-
61
87
104
15.1
17 4
48
ø20.5
ORDERING INFORMATION
ITEM
DESIGNATION
ITEM NO.
Control unit
or
Base for MMI 810.1
Base for MMI 811.1
Slide-in plate
optionally
Flame detector
Flame detector
Flame detector
IRD mounting flange
Flame detector cable
Type MMI 810.1 mod. 33
Type MMI 811.1 mod. 35
Base 701 TTG-EN
Base 710 TTG-FN
PG-plate
Cable clamping plate
IRD 1020 end-on viewing
IRD 1020 side-on left
IRD 1020 side-on right
IRD Holder M93
3-wire, 0.6 m
0620220
0621120
70101
70102
70502
70501
16522
16523
16521
59093
7236001
The above ordering information refers to the standard version.
Special versions are also included in our product range.
MMI 810.1 / 811.1
Specifications subject to change without notice.
A Honeywell Company
4
Satronic AG
Honeywell-Platz 1
Postfach 324
CH-8157 Dielsdorf