SERVICING
Gas conversion
Maintenance
Operating faults
Options
Parts lists
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THI 2-17 B 120
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High technology heating
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T30.36388.05
TABLE OF CONTENTS
I - FLOW AND SERVICE PRESSURE CONTROL ................................................................................... 3
1 - GAS/CO2/CO/NOX FLOW CONTROL AND SERVICE PRESSURE CONTROL ................................. 4
1.1 - Surveillance procedure .............................................................................................................. 5
1.2 - Setting table ............................................................................................................................... 6
II - MAINTENANCE .................................................................................................................................... 7
1 - SERVICING THE FAN AND THE BURNER.......................................................................................... 7
2 - SERVICING THE HEAT EXCHANGER OF THE BOILER SHELL........................................................ 8
3 - TANK MAINTENANCE .......................................................................................................................... 8
4 - CHECKING ACCESSORIES ................................................................................................................. 9
5 - EXPANSION VESSEL PRE-INFLATION PRESSURE CHECK ............................................................ 9
6 - COMBUSTION PRODUCT CONDUITS (FLUE) ................................................................................... 9
7 - DRAINING ............................................................................................................................................. 9
7.1 - Draining the boiler ..................................................................................................................... 9
7.2 - Draining the hot water tank ........................................................................................................ 9
8 - SENSOR RESISTANCES ................................................................................................................... 10
9 - PRESSURE SENSOR......................................................................................................................... 10
III - OPERATING FAULTS ........................................................................................................................ 11
1 - OPERATING FAULTS LIST ................................................................................................................ 11
2 - MAINTENANCE................................................................................................................................... 13
2.1 - Maintenance alarm .................................................................................................................. 13
2.2 - Maintenance code ................................................................................................................... 13
2.3 - Coding of maintenance alarms ................................................................................................ 13
2.4 - General activation of maintenance alarms .............................................................................. 13
2.5 - Activation of the individual maintenance alarm ....................................................................... 14
2.6 - Acknowledgement of maintenance alarms .............................................................................. 14
2.7 - Resetting the maintenance alarms .......................................................................................... 14
IV - OPTIONS ............................................................................................................................................. 15
1 - SET-UP TAKING ROOM TEMPERATURE INTO ACCOUNT (REG 73) ............................................ 15
2 - LPB COMMUNICATION CLIP-IN KIT (REG 130) ............................................................................... 15
3 - 2ND HEATING CIRCUIT CLIP-IN KIT................................................................................................. 15
4 - DOUBLE CIRCUIT KIT (REG 125)...................................................................................................... 16
5 - PROGRAMMABLE RELAY CLIP-IN KIT (REG 127)........................................................................... 16
6 - PROGRAMMABLE RELAY CLIP-IN KIT (WITHOUT SENSOR) (REG 134) ...................................... 16
7 - ZHTI 46 CONTROL UNIT (REG 129).................................................................................................. 17
8 - ZHTI 47 CONTROL UNIT (REG 128).................................................................................................. 17
9 - 1ST CIRCUIT CONNECTION KIT ....................................................................................................... 17
10 - TIMER KIT ........................................................................................................................................... 18
V - PARTS LISTS ...................................................................................................................................... 19
- 2 -
I - FLOW AND SERVICE PRESSURE CONTROL
Check that the boiler is properly adapted to the gas
used.
This operation must be carried out by a
qualified person equiped with a calibra-
!
ted combustion analyser.
Prior to any servicing cut the electrical and gas supplies.
Fig. 1
2
PL
K
Pi
V
Po
8
1
The boiler is preset in the factory for natural gas H
(G20) 20 mbar.
Check the gas circuit for leak tightness after each in-
tervention on the boiler.
4
11
5
6
3
9
7
10
1) Gas unit
2) Gas pipe
3) Air fan hose
4) Burner
5) Air/Gas servo-control
6) Brass air reducer
THI-35-0
7) Fan
8) Flat seal
9) Gas reducer
10) Gas reducer o-ring
11) Fan/burner air sleeve hose fastening clip
- 3 -
FLOW AND SERVICE PRESSURE CONTROL
1
1- GAS/CO2/CO/NOX FLOW CONTROL AND SERVICE PRESSURE CONTROL
Fig. 2 Pi = Gas network pressure
Natural gas H (G20): 20 mbar,
SIEMENS/LANDIS
GAS VALVE
ref : VGU87A0236
P
= Gas outlet pressure to the burner.
o
PL = Air pressure auto. control (fan- gas valve)
V = Adjustment of the slope of the air/gas ratio characteristic when
the burner is at maximum rate. This setting is performed in
factory for type H natural gas (G20) or propane (G31). It can
Po
V
K
PL
be used to correct the pressure Po to obtain the required gas
flow (section 1.2 - page 6 - chapter I - FLOW AND SERVICE
PRESSURE CONTROL SERVICING MANUAL).
Turn to increase the gas flow
!
K = Adjustment of the parallel offset only when the burner is at mi-
ZEM-54-0
Pi
nimum rate. This screw is preset in the factory. Its setting
must not normally be changed. If necessary, perform this operation with a small scale manometer 0-10 mmCE, and a CO2,
CO analyser. Turn to increase the gas flow
P_OUT
P_IN
SIT GAS VALVE
ref.: 848 SIGMA
2
PL
P_IN =Gas network pressure
Natural gas H (G20): 20 mbar,
P_OUT = Gas outlet pressure to the burner.
PL = Air pressure auto. control (fan- gas valve)
1 = Adjustment of the slope of the air/gas ratio characteristic when
the burner is at maximum rate
. This setting is performed in
factory for type H natural gas (G20) or propane (G31). It can
be used to correct the pressure P_OUT to obtain the required
gas flow (section 1.2 - page 6 - chapter I - FLOW AND SERVICE PRESSURE CONTROL SERVICING MANUAL).
Turn to decrease the gas flow
!
2 = Adjustment of the parallel offset only when the burner is at mi-
nimum rate. This screw is preset in the factory. Its setting
must not normally be changed. If necessary, perform this operation with a small scale manometer 0-10 mmCE, and a CO2,
CO analyser.
To modify the setting, if necessary, remove the protective
screw, then turn to increase the gas flow. When the settings
are made replace the protective screw.
- 4 -
FLOW AND SERVICE PRESSURE CONTROL
Fig. 3
23
THI-126-0
C33 - Vertical flue
chimney flue :
B
23
- Combustion control is carried out on the combustion product outlet system external and directly at
the boiler outlet (with the boiler unit assembled).
This opening must be closed again after checking
C
- C33 balanced flue :
13
- Combustion control is carried out on the boiler
through the opening (23) provided for this purpose after the cap is removed. This opening must be
closed again after checking.
C13 - horizontal flue
TROL - SERVICING MANUAL) (tightening and
untightening increases and decreases gas
flow).
Before starting the minimum rate setting (V or 1 and K or 2 screws), wait for
!
a stable CO
/CO analyser read-out. Re-
2
peat switching from the minimum rate
to the maximum rate several times to
ensure that the setting has been done
properly.
- to return to normal operation, press on the sweep
key (6) for 3 seconds then release it.
Note:
- Remember to reposition the d.h.w. potentiometer
(3) to its initial value to return to the required
d.h.w. setting.
1.1 - Surveillance procedure
- To commission the burner:
• Activate the regulator shut-down function - service key (6) (section 3.11 - page 18 chapter III - OPERATION - INSTALLATION
MANUAL) :
. the code flashes on the dis-
play screen (13),
- Gradually position the d.h.w. potentiometer (3) to
the maximum on the right:
• the burner switches to max. rate,
- Gradually move the V or 1 adjustment screw of
the gas unit (fig. 2 - page 4 - chapter I - FLOW
AND SERVICE PRESSURE CONTROL - SERVICING MANUAL) to obtain a stable flame.
-Check the CO
/CO ratio (see setting table
2
section 1.2 - page 6 - chapter I - FLOW AND
SERVICE PRESSURE CONTROL - SERVICING
MANUAL),
- Set the d.h.w. potentiometer (3) to the maximum
on the left:
• the burner switches to the minimum rate,
-Check the CO
/CO ratio (see setting table
2
section 1.2 - page 6 - chapter I - FLOW AND
SERVICE PRESSURE CONTROL - SERVICING
MANUAL),
- If necessary:
•adjust screw K or 2 (fig. 2 - page 4 - chapter I
- FLOW AND SERVICE PRESSURE CON-
- 5 -
FLOW AND SERVICE PRESSURE CONTROL
1.2 - Setting table
Models THI 2-17 B120
Natural gas burner type X07.36235
Heat output 30/50 °C
60/80 °C
Heat input kW
∅ Gas reducer Gaz Nat H mm
∅ Air reducer Gaz Nat H mm
Gas flow (15°C, 1013 mbar)
Gas pressure Po / P_OUT (gas unit to burner)
Servo-system air pressure (PL) Pa
CO2 Emission
Emission
CO
Gaz Nat H
Gaz Nat H mbar
Gaz Nat H % 8,0-8,5/9,0-9,5
Gaz Nat H ppm 0/20
m
- Combustion product evacuation outlet back pressure: 0 mmCE.
- P
/ P_OUT = Gas pressure at the gas valve re-
o
gulator outlet.
- PL = Servo-system air pressure (fan - gas unit).
- The Po / P_OUT and PL values may be more or
less high according to whether back pressure is
greater or smaller.
kW
kW
3
2,6/18,3
2,3/16,9
2,5/17,4
4,20
18,2
/h
0,26/1,84
0,3/6,5
40/810
- 6 -
II - MAINTENANCE
The annual inspection of the boiler and of the combustion product outlet is compulsory and validates
the warranty. It must be carried out by a qualified
person.
Spare parts must be ordered by using the references listed in chapter V - PARTS LISTS - page 19 SERVICING MANUAL, and specifying the type and
serial number of each part.
Before any servicing, cut the power
supply. Close the gas inlet of the boiler
!
and the isolation valves if required.
If the boiler is removed, provide a port at
the end of the gas piping.
1 - SERVICING THE FAN AND THE BURNER
Abb. 4
589
2
B
Remove the front panel (item G) from
the boiler and disconnect the earth wire
!
(item O).
O
4
3
5
G
A
Check the state of the ventilator and the burner and
clean them if necessary (following their service instructions).
6
1
10
4
7
THI-85-00
7
- 7 -
MAINTENANCE
Disassembling the burner/fan unit:
- Electrically disconnect the burner/fan unit:
• remove the 2 cable lugs connecting the ignition
electrode (3) to the ignition transformer (A),
• remove the cable lug connecting the ionising
electrode (2) to the X2-05 terminal of the boiler
control panel,
• remove the fan (7):
. from the connector of the fan power cord,
. from the connector of the fan's PWM signal,
- disconnect the air/gas servo-system (B) from the
gas valve,
Disassembling the fan:
- Unscrew the four screws (1) fixing the fan (7) to
the burner’s air sleeve (6),
- Clean it using a domestic vacuum cleaner by placing the suction device over the air inlet and outlet
successively.
Disassembling the burner:
- Unscrew the four screws fixing (5) the burner (4)
to the boiler shell (8),
- Disassemble the nut (9),
- Clean the burner (4) using a domestic vacuum
cleaner by placing the suction device over the air
inlet and the gas inlet successively,
- Check the ignition electrodes (3) and the ionisation electrodes (2).
Fig. 5
3
39
2.25
When fitting back the burner/fan unit:
- Replace the seal at the level of the nut (9) and
check that there are no gas leaks,
- when fitting the fan back onto the boiler:
• check that the fan/burner seal (10) is correctly
positioned,
• check that there is no leakage at this seal and
replace it if necessary.
- check that the burner (4) and boiler shell (8) have
no leaks - replace the seal if necessary.
ZEM-31-0-2-17
2
40
5
,
3
2 - SERVICING THE HEAT EXCHANGER OF THE BOILER SHELL
- The heat exchanger must be cleaned once the
burner has been disassembled (section 1 page 7 - chapter II - MAINTENANCE - SERVICING MANUAL).
- Sprinkle the heat exchanger with water. The water is evacuated through the condensate evacuation siphon,
- when reassembling the burner onto the boiler
shell check the correct positioning of the gasket.
3 - TANK MAINTENANCE
- The stainless steel hot water tank is resistant to
lime scale. Nevertheless, the access flap gives
access to the tank and the exchanger.
Note :
- See section 5.2 - page 34 - chapter IV - INSTALLATION - INSTALLATION MANUAL
- 8 -
4 - CHECKING ACCESSORIES
MAINTENANCE
- Check that the safety and control devices (3 bar
safety valve, air bleed, safety control box, etc.)
are operating properly.
- Clean the condensate drain siphon and then fill it
with water.
- Also check that neither the installation nor the
boiler present any water or fuel leaks (leaks may
produce a risk for safety and shorten the lifespan).
- When it is frequently necessary to add water to
maintain pressure in the installation, even though
no leaks have been discovered, perform an expansion vessel check (section 5 - page 9 chapter II - MAINTENANCE - SERVICING MANUAL).
5 - EXPANSION VESSEL PRE-INFLATION PRESSURE CHECK
- Drop the pressure in the heating installation by
opening the drain cock or the safety valve (pressure gauge reading under 0.5 bar).
- Check the pressure in the expansion vessel and
if necessary bring it back up to pressure, or replace it if the membrane is punctured (water present
in the inflating valve).
- To optimise the efficiency of the vessel:
• adjust its pre-inflation pressure in line with the
installation. It must correspond to the static height of the installation (H) expressed in bars
(height between the highest point of the installation and the expansion vessel, with 10 metres = 1 bar),
• adjust the filling pressure of the installation to a
value of over 0.2 bar above the pre-inflation
pressure of the vessel (after totally bleeding
the air from the installation).
6 - COMBUSTION PRODUCT CONDUITS (FLUE)
- Check the combustion product evacuation conduit and the air inlet conduit at least once a year
(airtightness of the parts that may be disassembled - conduits not obstructed).
7 - DRAINING
7.1 - Draining the boiler
- Cut the power supply,
- turn off the gas cock,
- turn off the heating flow/return valves (if they are
fitted),
- connect the drain valve (18) to the sewage system,
- open the drain valve.
Ensure that the air bleed (item. 16) is
open, as soon as the pressure gauge in-
!
dicates a zero pressure to allow air to
enter the boiler shell.
Fig. 6
16
7.2 - Draining the hot water tank
- Close the hot water supply valve of the network,
- open a hot water tap to make the pressure drop,
- remove the access flap (33) to allow air to enter
the tank (26),
- connect the drain valve (36) to the sewage system,
- open the drain cock (36) at the bottom of the tank.
Fig. 7
33
36
18
THI-98-0
TIO-24-0
26
- 9 -
8 - SENSOR RESISTANCES
0
The resistance of the sensors must be measured
after they have been disconnected from the control
panel.
Resistance values of the sensors
Heating outlet sensor
Temperature
0.00 °C 32624
10.00 °C 19897
15.00 °C 15711
20.00 °C 12493
25.00 °C 10000
30.00 °C 8056
40.00 °C 5324
50.00 °C 3599
60.00 °C 2483
70.00 °C 1748
80.00 °C 1252
90.00 °C 912
Boiler return sensor
Domestic hot water sensor
Flue gas sensor
MAINTENANCE
Resistance values of the sensors
Temperature Outside sensor
-20.00 °C 7578
-15.00 °C 5861
-10.00 °C 4574
-5.00 °C 3600
0.00 °C 2857
5.00 °C 2284
10.00 °C 1840
15.00 °C 1492
20.00 °C 1218
25.00 °C 1000
30.00 °C 826,8
35.00 °C 687,5
9 - PRESSURE SENSOR
The output voltage on the water pressure sensor is measured between the terminals GND (-) and OUT.
Fig. 8
OUT
GND (-)
IN (+)
100-75-
5
4.5
4
3.5
3
2.5
2
Output voltage (Volt)
1.5
1
0.5
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Input pressure (bar)
100-74-0
- 10 -
III - OPERATING FAULTS
1 - OPERATING FAULTS LIST
Display A0 Description Solution
Outside sensor fault Check that the sensor is correctly fitted and
connected
Boiler sensor 1 fault Check that the sensor is correctly fitted and
connected
Flue gas detector fault Check that the sensor is correctly fitted and
connected
Flow sensor 2 fault Check that the sensor is correctly fitted and
connected
Return sensor 1 fault Check that the sensor is correctly fitted and
connected
Domestic hot water sensor 1 fault Check that the sensor is correctly fitted and
connected
Room device 1 faulty Check the boiler connections
Room device 1 error or radio clock error Check compatibility of the room device or
clock
Water pressure sensor fault Check the connections of the pressure
sensor
Short-circuit on LPB or no voltage Check the wiring
Two identical addresses on the LPB Check the addressing
Loss of data in the EEPROM Change the LMU
Component fault in the LMU Change the LMU
Two master clocks (only one normally),
programming problem
Maintenance alarm Check the maintenance code value, QAA 73
STB (boiler overheating safety) activated Check that shunt X3-01 is present and
Response of the safety thermostat Check whether the installation water flow is
Check parameter 96 of the QAA73 (only one
device can have the message “QAA73”)
setting 726 (section 2 -page 13 - chapter III OPERATING FAULTS - SERVICING)
whether the installation water flow is sufficient
(circulating pump, isolation valve, etc.)
sufficient (circulating pump, isolation valve,
etc.)
Flue gas alarm displayed (problem of the
flue gas temperature being too high)
Water pressure too high Check and adjust the pressure level if
Water pressure too low Check and adjust the pressure level if
- 11 -
Check whether the boiler is not on thermal
overload or that the exchanger is not clogged
necessary with P < 4 bar
necessary with P > 0.4 bar
OPERATING FAULTS
Display A0 Description Solution
Flame failure while the boiler is operating Check and adjust the gas valve, check the
ionisation electrode and the connections,
possible live-neutral inversion of the
transformer supply
Poor air supply Check the ventilator and the air inlet
Maximum flue gas temperature exceeded Check whether the boiler is not on thermal
overload or that the exchanger is not clogged
Safety device activated Check that shunt X10-03 is present and that
the wires are properly connected
No flame formed after the safety time
period
Segment number or unauthorised
addressing on LPB or LMU
Incompatibility between the LMU and LPB Check the addressing consistency
New LMU configuration Check the b0 internal code
LMU setting error Check the b0 internal code
The boiler is blocked Press Reset to clear the message
Violation of the plausibility criteria (STB
related criteria)
The minimum speed threshold of the fan
is not reached
The maximum speed threshold of the fan
is exceeded
Check that the gas reaches the boiler (Pi),
check the condition of the gas valve, if there
is a major adjustment fault on the gas valve,
check the condition of the transformer,
cables, ignition electrode, ionisation current
value
Check the addressing consistency
Check the value of the criteria related to the
boiler overheating security
Check the wiring of the fan and LMU, ensure
that the fan is turning correctly
Check the mains supply and the fan cable
connections
The service function is active -
The regulator shut-down function is active -
The boiler is in setting mode This appears after one or more settings are
Modem function is active -
"Controlled screed drying" function is
active
Note :
- The last 5 working faults are accessible through
the QAA 73, from LMU version 3.00, lines 728 /
loaded either by the QAA73 or by the PC
TOOL. This means that a reset is necessary
to validate the new setting(s) and for the
boiler to return to normal operating.
-
729 / 730 / 731 / 732. The last saved fault code is
displayed at line 728.
- 12 -
2 - MAINTENANCE
Maintenance alarms can be automatically triggered,
indicating that maintenance jobs are due. The following reasons for maintenance alarms can be delivered:
- Interval of burner hours run since last regular service visit exceeded.
- Interval of the number of startups since last regular service visit exceeded.
- Number of months since last regular service visit
exceeded.
The alarm displayed is always the maintenance
alarm that occurred first.
There is no storage for the maintenance alarms since all pending alarms can be checked at any time
via the counter readings or the relevant parameters.
2.1 - Maintenance alarm
If a maintenance alarm occurs, an error code "105
maintenance" appears on the dipslay of the boiler
and / or room unit.
This code does not give precise information on
maintenance but is only a general maintenance note.
OPERATING FAULTS
2.3 - Coding of maintenance alarms
Internal
Maintenance
alarm
Maintenance
code
– 0 –
105 1 560
105 2 561
105 3 562
error
code
b0
Meaning
No maintenance
alarm
Burner hours run
Startups
Months-service
2.4 - General activation of maintenance alarms
Parameter "WartungsEinstellungen" (QAA 73 setting : 630) permits or suppresses the generation of
maintenance alarms.
The subdivision of parameter "WartungsEinstellungen" by bit is shown in the following table :
These maintenance alarms are a priority lower than
that of the error codes to ensure the error codes prevail.
The maintenance alarm is sent until the enduser has
acknowledged the message or the heating engineer
has rectified the fault.
2.2 - Maintenance code
The maintenance alarm does not provide detailed
information about the reason for the fault. Details
can be displayed using parameter "WartungsCode"
(QAA 73 setting : 726).
Le maintenance code can also be viewed on the display of the boiler (b0).
Bit0
Bit1
1 = general activation of maintenance alarms
1 = single reset of hours run maintenance alarm
Bit2 1 = single reset of startup maintenance alarm
Bit3
alarm
single reset of months- service maintenance
1 =
Bit6 1 = total reset for all maintenance alarms
- 13 -
OPERATING FAULTS
2.5 - Activation of the individual maintenance alarm
Every cause can be individually activated or deactivated by entering the associated limits.
- Burner hours run :
Burner hours run maintenance is activated by
setting parameter "BetrStdWartGrenz" (QAA 73
setting : 625) to a value other than "0".
This value represents the target number of hours
run. When this limit is reached, a maintenance
alarm will be delivered (interval since last service
visit).
- Number of startups:
Startup maintenance is activated by setting parameter "InbetrSetzWartGrenze" (QAA 73 setting :
626) to a value other than "0".
This value represents the target number of star-
tups. When this limit is reached, a maintenance
alarm will be delivered (interval since last service
visit).
- Months (service):
Service maintenance is activated by setting parameter "MonatWartGrenze" (QAA 73 setting :
627) to a value other than "0".
This value represents the target number of
months. When this limit is reached, a maintenance alarm will be delivered (interval since last service unit).
Note :
- The month counter is only active when the device
is connected to power.
2.6 - Acknowledgement of maintenance alarms
The acknowledgement sets the internal error code
"b0" and the fault statut message to "0", but the
maintenance code still gives the precise reason for
the maintenance alarm.
2.6.1 - Acknowledgement via QAA 73
For the parameter "WartungsQuittierung" (QAA 73
setting : 629) (defaut value: 0), to acknowledge the
maintenance alarm the heating engineer (or the enduser) enters the value of "1".
If no repetition is required, all maintenance alarms
after this acknowledgement will be locked, even if
other reasons for maintenance occur. In that case,
parameter "WartungsQuittierung" remains constantly at 1.
2.6.2 - Activation of the repetition after acknowledgement
If required, a timer (duration of repetition) can be
started, that is, the maintenance alarm will reappear
on the display after a certain period of time. An acknowledgement can also be made then. This period
of time starts after each acknowledgement.
The repetition can be set via parameter «WartungsRepetitionsDauer» (QAA 73 setting 633).
Contents of parameter «WartungsRepetitionsDauer» is the desired period of time (in days) until
the maintenance alarm appears again.
If a value other than «0» is entered there, a repetition is made within the entered duration of the repetition time.
During this period of time, no more
maintenance alarms will appear, even if
!
other reasons for maintenance occur.
2.7 - Resetting the maintenance alarms
Resetting can take place at any time, and after acknowledgement or during the repetition sequence.
A reset can be made in 1 of 2 ways:
- Total reset :
Here, all maintenance alarms can be reset at the
same time. If, in parameter «WartungsEinstellungen» (QAA 73 setting 630), «1» is entered, all
maintenance counters will be set to «0» when the
parameter is saved.
The maintenance counters of the hours run, startups and months maintenance alarms will be
newly started.
- Individual resert of a certain maintenance
alarm :
Individual maintenance alarms can also be reset.
In that case, parameter «WartungsEinstellungen» (QAA 73 setting : 630) will again be addressed bit by bit.
There is a bit available for each maintenance
alarm via which this maintenance alarm can be
reset (section 2.4 - page 13 - chapter III - OPERATING FAULTS - SERVICING). It is thus possible to also reset other reasons for maintenance
although they have not yet occurred.
When resetting the maintenance alarm, the maintenance code and the internal error code (b0) will
automatically also be reset.
Note : Only the QAA 73 can the maintenance alarms
be activated, the reasons for the maintenance alarms be checked and a reset via parameter be made.
- 14 -
IV - OPTIONS
1 - SET-UP TAKING ROOM TEMPERATURE INTO ACCOUNT (REG 73)
The REG 73 is a multifunctional digital room sensor
for one or two heating circuits and for the control of
Fig. 9
domestic hot water.
Refer to the kit installation instructions.
2 - LPB COMMUNICATION CLIP-IN KIT (REG 130)
The LPB communication clip-in kit is used to connect the LMU control unit to different units or accessories of the type:
- RVA 46: zone regulator
- RVA 47: cascade regulator
- + others (distance management etc.)
Fig. 10
PDG-REG 73
Refer to kit installation instructions.
3 - 2ND HEATING CIRCUIT CLIP-IN KIT
The 2nd heating circuit clip-in kit is used when a second heating circuit is connected to the boiler. It allows the communication between the boiler’s LMU
control unit and the various accessories of the secondary circuit.
Refer to kit installation instructions.
THI-28-0
Fig. 11
- 15 -
0
1
3
-
I
H
T
4 - DOUBLE CIRCUIT KIT (REG 125)
OPTIONS
The double circuit kit is used whenever a second
heating circuit is connected to the boiler:
Fig. 12
- The 2nd circuit clip-in ensures communication
between the boiler's LMU management unit; the
2nd circuit pump control and also the mixing valve motor (accessories supplied with the kit).
Refer to kit installation instructions.
5 - PROGRAMMABLE RELAY CLIP-IN KIT (REG 127)
The programmable relay clip-in kit (sensor inlet)
enables:
- a 2nd heating pump to be controlled in parallel
with the boiler pump in the case of operation
using a header.
- with the flow sensor positioned at the outlet of the
header, the heating outlet can be controlled after
the header.
- an external safety gas solenoid to be connected,
- an alarm to be connected.
Fig. 13
0
8
1
-
I
H
T
Refer to kit installation instructions.
6 - PROGRAMMABLE RELAY CLIP-IN KIT (WITHOUT SENSOR) (REG 134)
The programmable relay clip-in kit (without sensor)
enables, for example:
- a domestic hot water circulation pump to be controlled,
- an outside gas safety solenoid valve to be connected.
Refer to the assembly instructions for the kit.
Fig. 14
0
1
3
-
I
H
T
0
9
0
1
-
I
H
T
- 16 -
7 - ZHTI 46 CONTROL UNIT (REG 129)
O
0
OPTIONS
The control unit ZHTi 46 enables an additional heating circuit to be controlled. (Required from 3 heating
circuits - refer to technical specifications of the ZHTi
46).
8 - ZHTI 47 CONTROL UNIT (REG 128)
The control unit ZHTi 47 manages 2 cascading boilers.
Note:
- For multiple boiler management, use clip-in kits
LBP (130).
Refer to ZHTi 47 technical specifications.
Fig. 15
REG 121
Fig. 16
9- 1ST CIRCUIT CONNECTION KIT
1st circuit connection kit used for a multi-directional
assembly of the pipes:
- gas inlet,
- heating flow-return,
- domestic hot water inlet/outlet
at the rear of the boiler.
Refer to the installation instructions of the kit.
Fig. 17
REG 128
7
2
I
T
- 17 -
10- TIMER KIT
OPTIONS
The timer kit is fitted to the boiler’s control panel and
controls an installation only possessing one heating
circuit.
Fitting a clip-in to the boiler’s LMU management unit will not work with this ti-
!
mer.
Refer to kit installation instructions.
Fig. 18
HOR-01-0
- 18 -
V - PARTS LISTS
THI 2-17 B 120
- 19 -
PARTS LISTS
Rep.
1 H20.32834 FRONTPANEL GREY
2 L20.31471 SENSOR T7335D1024B
3 Y90.35802 MONOBLOC COVER, ASSEMBLED THRI B120 + STICKER
4 A00.03141 COLORLESS PLASTIC CAP
5 T25.31875 FIXING PART; UPPER COVER
6 I20.21452 MESSING LOCK NUT 1
7 U07.31501 GAS SUPPLY ; GREY ; THISION
8 V90.33616 WIRED SIT GAS VALVE SET
8 V90.37322 GAS VALVE SIEMENS VGU 87
9 L10.10607 HONEYWELL O’RING 22 X 2,5
10 L10.33774 FLANGE G 3/4" FOR SIT VALVE
11 U07.31527 GAS PIPE BURNER THISION
12 V07.34600 REINFORCING PART ; WHITE
13 V00.21491 PROTECTING RING 1
14 W07.35314 PROGRAMMED CONTROL BOX ; WIRING 2-17 B120
15 U07.31498 90° ELBOW ; D.80 DRILLED
16 L20.31496 SENSOR TASSERON NTC SENSOR D10X20 10K
17 T40.01051 INSIDE CIRCLIPS D.30 YELLOW BICHROMATE
18 B59.00692 STAINLESS STEEL WASHER 30,4X25,5X0,3
19 T20.00582 SIGHTGLASS PYREX D.30X5
20 V07.31526 STAINLESS STEEL BOILER SHELL THISION
21 F00.26572 GLASS BRAID RING D. 12 LG. 685
22 X00.21867 BURNER FOR THR 2-13
23 U00.03505 FIXING BRACKET FOR BURNER MZ/THR
24 L00.16673 IGNITION ELECTRODE SHORT 74,5 AV CABLE
25 L00.25959 IONISATION ELECTRODE BURNER 1-10
26 C90.31466 IGNITION TRANSFORMER ANSTOSS ZAG 2XV 01/10
27 L20.32178 SURFACE TEMP. SENSOR T7335D1073B
28 Y07.34192 CASING OF BOILER ; EQUIPPED
29 X00.12864 REMOVABLE PROTECTION FOR BURNER (580 X 30 X 1,5)
30 Y00.14139 FASTENING HOOK
31 B00.18392 PIPE RING 41,1/44
32 O90.16681 PIPE BURNER / FAN (THR)
33 Y00.13849 BACK STOP PLATE FOR MZ (3355X80,4X1,5)
34 Y00.17570 FLANGE FOR WHITE STAND FOR THR FAN
35 U07.34025 CONNECTING PIPE
36 Y07.35653 UPPER CHASSIS ; WHITE
37 Y00.17569 WHITE STAND FOR THR FAN
38 C50.31464 FAN MVL-EBM RG 128/1300-3612
39 I20.34522 AIR ADJUSTMENT RING D. 18,2
40 W07.31704 MOTOR; SELECTIVE VALVE WITH CABLE
41 E20.23654 EXTENSIBLE SEALING D. 18 / RED SILICONE
42 E00.01005 O’ RING DIA DIA 29,32 X 3,6
43 I20.13579 BRASS NIPPLE MAL3/4-MAL3/4(LONG)
44 U00.19252 SUMP INLET THRC/S GREY
45 L90.24635 AUTOMATIC AIR VALVE WATTS WITH ISOLATED VALVE
46 E20.03889 SEALING AFM34D 30X21X3
47 V07.34187 SIPHON + CAP
48 L30.31467 CIRCULATING PUMP GRUNDFOS UPS 15-50 CACAO
49 U07.34610 HEATING FLOW PIPE ; GREY
50 V90.33015 SELECTOR VALVE KIT
51 L50.35152 PRESSURE SENSOR HUBA TYPE 505.91540
51 V90.35156 REPLACEMENT SET OF IMIT SENSOR BY HUBA SENSOR
52 L20.31470 SENSOR TASSERON NTC SENSOR M5 TSA-TYPE
53 L90.24178 SAFETY VALVE
54 I20.21441 MESSING SEALED CONNECTION "OLIVE" 22/1
Référence
Désignation
- 20 -
PARTS LISTS
Rep.
55 V07.33499 LOW BLOCK FLANGE
56 K50.24473 DRAIN COCK / RETURN UNIT
57 Y00.10807 FIXING SYSTEM FOR FLUE PIPE
58 U00.20366 ELBOW D. 80 45°
59 E00.24496 SEALING / O’RING INT. D. 39,45
60 L40.24495 STAINLESS STEEL FILTER / HEATING RETURN
61 U90.28983 HEATING RETURN UNIT
62 K20.13777 MALE/FEMALE MESSING REDUCER M1 - F 3/4
63 N40.16810 REDUCED FLUE OUTLET PIPE F75/M80 L360
64 A00.19467 GREY PLASTIC CAP MALE 75
65 Y07.36366 MONOBLOC COVER ; EQUIPPED
66 C91.03071 WIRE CARRIER
67 V07.32114 RING FOR BOILER COVER L685
68 E20.03890 SEALING AFM34 D 24X17X3
69 E00.03424 NITRILE O’RING D. 8 X 2 80 SHORE
70 I20.17832 UNION REDUCER D.12 D. 4,20
71 D20.33079 INTERMEDIATE ISOLATION
72 K50.18085 ANODE + CAP +SEALING 3/4-D.22X230 MAGNESIUM
73 V90.19984 ANODE CLEANING DOOR
73 V90.26382 CLEANING DOORD (WITHOUT ANODE)
74 E20.18103 SEALING AFM34 D.36X26X2
75 I10.29477 FLANGE FOR CLEANING DOOR
76 O00.34006 FLEXIBLE FOR EXPANSION VESSEL MU 1/4"-CB 1/2"
77 D20.33049 UPPER ISOLATION
78 E20.24772 O’RING FOR SILICONE PIPE D.14/18
79 E20.10187 SEALING / CLEANING DOOR
80 U07.35657 PRIMARY INLET PIPE ; ISOLATED
81 E20.03901 SEALING QUALITY AFM34 D.11X4X3
82 U07.35662 BRAZED DHW PIPE
83 W07.32303 OUTSIDE SENSOR .QAC34/101 THRI
84 A00.19059 PLASTIC STOPPER MAL 9 WHITE
85 Y07.34103 TRAP TO EXPANSION VESSEL ; WHITE
86 V07.34213 STOP PLATE FOR ISOLATION
87 V07.35479 EXPANSION VESSEL SET THI B120
88 E20.06892 SEAL AFM34 D. 18,6 X 12 2 MM THICKNESS
89 K11.03278 CAST IRON - STOPPER; BLACK M3/8
90 F01.00588 MINERAL CARBOARD WASHER D. 25X8,5X3
91 E10.12850 FOAM LD29 40*26*15
92 Y07.34594 UPPER CASING ; WHITE
93 K20.33078 BRASS STOPPER M3/4"SE 120
94 U07.34529 BRAZED GAS PIPE
95 U00.23957 TANK RETURN; GREY; THR
96 U07.35666 BRAZED COLD WATER PIPE
97 U07.35656 PRIMARY OUTLET PIPE ; ISOLATED
98 U07.34186 OUTLET PIPE ; 1ST CIRCUIT ; BRAZED
99 U07.34412 INLET PIPE ; 1ST CIRCUIT ; BRAZED
100 Y07.34933 FRONT PART ; TANK ; EQUIPPED
101 A90.28142 FIXED PLUNGER D.40 ; BLACK (M8*25)
102 Y07.35693 LEFT HAND SIDE ; WHITE
103 K50.33064 COCK F1/2" - M1/2" WITH CAP
104 D20.33051 BOTTOM ISOLATION
105 V07.34598 WHITE BASE
106 Y07.35690 RIGHT HAND SIDE ; WHITE
107 Y07.35694 BACK CASING WHITE
108 V07.34624 ISOLATED TANK THRI M120
109 K20.19420 BRASS T-PIECE F3/4
Référence
Désignation
- 21 -
PARTS LISTS
Rep.
110 L90.37687 VALVE PTEM 575 901 3/43 22MM 7 BAR
* A00.28827 PLASTIC CAP MALE 1/4
* C09.31469 CABLE WITH RECTIFIER VDU GAS VALVE
* C09.33608 CABLE 0.960.401+CONNECT. GAS VALVE SIT 848 SIGMA
* E00.10822 EPDM LIP SEAL D. 80 75 SHORE
* E10.12503 EPDM STICKING SEAL PIPE 6/9 LENGTH 18
* E20.24399 GASKET DN 80; BLACK POUR LES RÉFÉRENCES (U00.12053) ET (U00.20366)
* I20.00913 BRASS HINGE BOLT
* K20.12704 BRASS CAP F3/4
* T31.34824 STICKER
* T31.34934 STICKER
* U00.11405 VERSILIC SLEEVE 4X8 LENGTH 640
* U00.29149 RING PIPE D.25 LG1300
* U01.25694 VERSILIC 6*10 LG 450MM
* V00.24191 MOUNTING KEY; HONEYWELL
* V52.33086 COMPLETE INSULATION SE 120
* X00.05193 FIXING BRACKET FOR IONISATION PROBE
* X90.30472 IGNITION ANGLE WITH SCREW
Référence
Désignation
- 22 -
CONTROL BOX
PARTS LISTS
- 23 -
PARTS LISTS
Rep.
1 H20.31449 CONTROL BUTTON
2 Y07.31525 CONTROL PANEL + STICKER
3 W07.31892 INTERFACE; EQUIPPED; AGU2.303A136
4 L20.31476 COMMUNICATION MODULE CLIP-IN LPB (VOIR OPTION W07.30832)
4 L20.31477 MODULE CIRCUIT 2 CLIP-IN (VOIR OPTION W07.30833)
4 L20.31499 SUB-MODULE RELAIS CLIP-IN AGU2.511A109 (VOIR OPTION W07.30515)
5 L20.36214 ELECTRONIC CONTROL UNIT LMU64.010D136 V3.03
6 A90.27098 CABLE GRIP D=6,5 MM BLACK
6 C91.38454 CABLE FASTENING TWIST LOCK
7 Y07.31507 ELECTR. BOX
8 C19.32006 SCREW EARTH CONNECTION
9 C20.12490 TIGHT CAP FOR SWITCH
10 C20.12487 BIPOLAR SWITCH; BLACK/LIGHTNING/GREEN
11 L25.17432 TIMER GRASSLIN 230 V FM - DIGI20
* C09.31469 CABLE WITH RECTIFIER VDU GAS VALVE
* C09.33608 CABLE 0.960.401+CONNECT. GAS VALVE SIT 848 SIGMA
* C09.37989 IONISATION CABLE Ø 2,5 LG 1020 MM
* C09.37989 IONISATION CABLE Ø 2,5 LG 1020 MM
* C90.31497 COVER KEY-TOP 4X4 THISION
* W07.31478 WIRING OF THE CONTROL BOX
* W07.31479 WIRING OF THE CONTROL BOX; 10-50 MODEL
* W07.31492 CONNECTING CABLE LG LMU64/AGU2
* W07.31508 ELECTR. CONTROL BOX + WIRING 2-13 THISION
* W07.31542 ELECTRICAL TERMINAL BOX
* W07.31558 ELECTR. CONTROL PANEL + WIRING 0,9-9 THISION
* W07.31562 CONTROL BOX PROGRAMMED THRI/THI 10-50C (DT)
* W07.32380 CONTROL BOX ; WIRED ; PROGRAMMED THI 5-25 S DT
* W07.32381 CONTROL BOX ; WIRED ; PROGRAMMED THI 2-13 M 75 DT
* W07.32382 CONTROL BOX; WIRED; PROGRAMMED THI 5-25 M75 DT
* W07.32899 CONTROL BOX ; WIRED ; PROGRAMMED THRI5-25SEP(DT)
* W07.32995 WIRING - TIMER THRI
* W07.34114 WIRED PROGRAMMED BOX THI 5-25/28 SEP GB/DK
* W07.34211 CONTROL BOX, PROGRAMMED, WIRED
* W07.34228 WIRED, PROGRAMM. CONTROL BOX THRI 5-25 M75H DC
* W07.34974 PROGRAMMED ; CONTROL BOX WIRING
* W07.35261 CONTROL BOX ; PROGRAMMED WIRING THI 2-17
* W07.35314 PROGRAMMED CONTROL BOX ; WIRING 2-17 B120
* W07.35319 PROGRAMMED CONTROL BOX ; WIRING 2-17 B120 DC
* W07.36535 WIRED & PROGRAMMED CONTROL BOX THI 5-25 B120 GB
* W07.36536 WIRED & PROGRAMMED CONTROL BOX THI 5-25 B120 DC
* W07.36930 CONTROL BOX ; WIRED ; PROGRAMMED
* W07.37986 SUPPLY CABLE 230V THRI
* W07.37991 CABLE TRANSFORMER+MASS THRI BURNER
* W07.37992 SWITCH CABLE THRI
* W07.37995 FAN CABLE THRI
* W07.37996 FAN CABLE THRI
* W07.37998 MASS CABLE THRI COVER
* W07.38000 SENSORS CONNECTION THRI
* W07.38001 CABLE PWM FOR THRI FAN
* W07.38002 FAN PWM CABLE THRI 10-50C
* W07.38004 SENSORS CONNECTION THRI 10-50 C
* W07.38379 FAN CABLE THRI/THISION/THI 10-50
* W09.37943 WIRING DHW SENSOR ZEM B120/SEP/M50
Reference
Designation
- 24 -
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