Protherm Panther Condens 12 KKO Installation guide

Training Manual FT 51
All the technical strengths,
installation and maintenance:
Panther Condens
12 KKO
25 KKO
25 KKV
30 KKO
.

T echnical TrainingT echnical Training
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>>> Introduction .........................................................
>>> Technical Specifications ........................................
Presentation of the range ..............................................................................................................................................................................
Hydraulic description of Panther Condens combi..........................................................................................................................................
Hydraulic description of Panther Condens system........................................................................................................................................
Hydraulic operation of Panther Condens ......................................................................................................................................................
Technical characteristics ...............................................................................................................................................................................
Control panel Panther Condens ....................................................................................................................................................................
Safety devices ...............................................................................................................................................................................................
Air/gas servo .................................................................................................................................................................................................
The gas valve ................................................................................................................................................................................................
Hydraulic unit ................................................................................................................................................................................................
The heat exchanger.......................................................................................................................................................................................
Software: general functions ..........................................................................................................................................................................
Access to installer and After-Sales menus ....................................................................................................................................................
Installation and After-Sales menu details ......................................................................................................................................................
The Installation and After-Sales menus by theme ........................................................................................................................................
Appliance status ...........................................................................................................................................................................................
Gas valve setting ..........................................................................................................................................................................................
Change of gas type .......................................................................................................................................................................................
>>> Installation ..........................................................
Heater location ..............................................................................................................................................................................................
Water and gas connections ...........................................................................................................................................................................
Water and gas ...............................................................................................................................................................................................
Drain connections .........................................................................................................................................................................................
Exhaust connections .....................................................................................................................................................................................
Electrical connections ...................................................................................................................................................................................
Flow rate / pressure curve available at boiler outlet (heating side) ...............................................................................................................
Installation recommendations .......................................................................................................................................................................
Check-list for commissioning a heater ..........................................................................................................................................................
Service visit ..................................................................................................................................................................................................
>>> Maintenance ........................................................
Service visit ...................................................................................................................................................................................................
Fault diagnosis help ......................................................................................................................................................................................
Panther Condens combi circuit diagram .......................................................................................................................................................
Panther Condens system circuit diagram .....................................................................................................................................................
Measurements ..............................................................................................................................................................................................
hydraulic assembly .......................................................................................................................................................................................
Combustion block assembly (all models) .....................................................................................................................................................
>>> Accessories .........................................................
Some accessories compatible with Panther Condens .................................................................................................................................

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>>> Introduction ..........................................................
T echnical Training
T echnical Training
T echnical Training
This new range of boilers, constructed around a single and unique structure covers a wide range of powers and market segments.
The performances have been improved:
- optimum efficiency for heating and hot water production
User comfort:
- use of high performance accoustic insulation reduces noise further,
- the pump has two automatic speeds to adapt to the demand without crating unnecessary nuisance,
- the possibility of a tank controlled by a temperature sensor rather than a thermostat, with adjustment of the tank temperature directly
from the boiler interface
- a new room thermostat (Exacontrol) has been developed for simpler communication: information in full, in the local language, user-
friendly menu,
- a maintenance-free wireless outdoor sensor (powered by a solar cell) completes the room thermostat.
The installation:
- compact boiler dimensions
- weight less than 40kg
- installer functions (connection of the tank for system boilers to the fixing jig, a connector for the overheating safety device...)
- compatible with all ebus controls, if used with new wireless room thermostat the new solar powered outdoor sensor can be used.
- simple and rapid outlet connection to the drain,
- packaging that is quick to open and easy to dispose of
After-sales has not been forgotten:
- simple access to internal components for ease of maintenance
- simple access to comprehensive diagostic points with intuitive fault codes.

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Presentation of the range
This new condensing wall hung boiler range is made up of Panther Condens, both combi and system boilers.
All using pre-mix burner technology with a sealed case front.
The different models:
• Panther Condens 12 KKO : system boilers, 3,9 to 12 kW in heating* , for DHW preparation 4,1 to 12,3 kW;
• Panther Condens 25 KKO : system boilers, 5,9 to 24,5 kW in heating* , for DHW preparation 6,1 to 30,6 kW;
- Panther Condens 30 KKO : system boilers, 8,5 to 30,0 kW in heating* , for DHW preparation 8,7 to 35,7 kW;
• Panther Condens 25 KKV : combi boiler, 5,1 to 25,5 kW for hot water, 4,9 to 18,1 kW for heating*
* at 80/60°C
418
344
130
740

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Hydraulic description of Panther Condens combi (25 KKV)
1 Pressure relief valve
2 Cold water lter
3 Filling system with non return valve
4 Cold water inlet ow sensor
5 Domestic hot water heat exchanger
6 Heating lter
7 Heating return temperature sensor
8 Condensate trap
9 Ignition and ame control electrode
10 Burner
11 Primary heat exchanger
12 Thermal fuse
13 Air inlet / Flue outlet
14 Silencer
15 Expansion vessel
16 Fan
17 Gas valve
18 Igniter
19 Heating output temperature sensor
20 Air relief valve
21 Pump
22 3-way valve
23 Pressure sensor
24 Bypass
A Heating ow
B Pressure relief valve drain
C Hot water output
D Gas inlet
E Cold water inlet
F Heating return
G Condensate drain pipe
12
11
10
9
8
7
6
5
4
2
1
13
14
15
16
17
18
21
20
19
22
24
23
3

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Hydraulic operation of Panther Condens
Hydraulic diagram in heating
Hydraulic diagram in hot water

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Hydraulic description of Panther Condens system (12/25 KKO)
9
8
7
6
5
4
3
2
1
10
11
12
13
14
15
18
17
16
20
19
1 Pressure relief valve
2 By-pass
3 Heating lter
4 Heating return temperature sensor
5 Condensate trap
6 Ignition and ame control electrode
7 Burner
8 Heat exchanger
9 Thermal fuse
10 Air inlet / Flue outlet
11 Silencer
12 Expansion vessel
13 Fan
14 Gas valve
15 Igniter
16 Heating output temperature sensor
17 Air relief valve
18 Pump
19 3-way valve
20 Pressure sensor
A Heating ow
B Pressure relief valve drain
C Hot water output
D Gas inlet
E Cold water inlet
F Heating return
G Condensate drain pipe

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Technical characteristics
Boiler type C13, C33, C43, C53, C83
Description Units 12 KKO 25 KKV 25 KKO 30 KKV 30 KKO
Gas category l2H ll2H3P ll2H3P ll2H3P ll2H3P
Heating
Min. useable power at 80°C/60°C (P min.) kW 3.9 4.9 5.9 5.9 8.5
Max. useable power at 80°C/60°C (P max.) kW 12 18.1 24.5 24.5 30
Min. useable power at 50 °C/30 °C (P min.) kW 4.4 5.4 6.6 6.6 9.3
Max. useable power at 50°C/30°C (P max.) kW 13.2 19.6 26.7 26.7 32.8
P.C.I. efciency at 80 °C/60 °C % 97.7 97.7 97.7 97.7 98.33
P.C.I. efciency at 50 °C/30 °C % 107.6 106.2 106.8 106.8 107.1
Efciency at part load (30%) on PCI at 40 °C/30 °C % 109.5 108.4 109.2 109.2 109.2
Efciency level according to the European Directive 92/42 - Condensation
Minimum caloric rate (Q min.) kW 4.1 5.1 6.1 6.1 8.7
Maximum caloric rate (Q max.) kW 12.3 18.5 25 25 30.6
Minimum heating ow rate l/h 400 400 400 400 400
Min. heating ow temperature °C 10 10 10 10 10
Max. heating ow temperature °C 80 80 80 80 80
Expansion tank, useable capacity l 8 8 8 8 8
Expansion tank pre-ination pressure bar 0.75 0.75 0.75 0.75 0.75
Appliance maximum capacity at 75 °C l 160 160 160 160 160
Safety valve, maximum operating pressure (PMS) bar 3 3 3 3 3
Sanitaire
Min. useable power (P min.) kW 4.1 (*) 5.1 6.1 (*) 6.1 -
Max. useable power (P max.) kW 12.3 (*) 25.5 30.6 (*) 30.6 -
Min. caloric rate (Q min) kW 4.1 (*) 5.1 6.1 (*) 6.1 -
Maximum caloric rate (Q max.) kW 12.3 (*) 25.5 30.6 (*) 30.6 -
Min. domestic hot water temperature °C - 38 - 38 -
Max. domestic hot water temperature °C - 60 - 60 -
Specic ow rate (D) according to EN 13203 l/min - 12.2 - 14.6 -
Domestic hot water comfort according to EN 13230 - - ** - ** -
Flow rate operating threshold l/min - 1.9 - 1.9 -
Cold water ow restrictor l/min - 8 - 10 -
Safety valve, maximum working pressure (PMW) bar - 10 - 10 -
Min. supply pressure bar - 0.3 - 0.3 -
Recommended supply pressure bar - 2 - 2 -
Pression d’alimentation max. bar - 10 - 10 -
Electrique
Tension d’alimentation V/Hz 230V
50Hz
230V
50Hz
230V
50Hz
230V
50Hz
230V
50Hz
Puissance maximale absorbée W 151 151 151 151 151
Intensité A 0.66 0.66 0.66 0.66 0.66
Fusible A22222
Protection électrique IPX4D IPX4D IPX4D IPX4D IPX4D
Classe électrique IIIII
* value measured during product certication. The theoretical value is 1.5 l/min.

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Technical characteristics
Description Units 12 KKO 25 KKV 25 KKO 30 KKV 30 KKO
Combustion
Fresh air ow rate (1013 mbar -0°C) m3/h 14.7 23.7 29.8 29.8 29.8
Burnt gasses exhaust ow rate at Pmin. g/s 1.8 2.3 2.8 2.8 4
Burnt gasses exhaust ow rate at Pmax. g/s 5.5 8.3 11.3 11.3 13.8
Burnt gasses exhaust ow rate at Pmax., in hot water mode g/s - 11.5 - 13.8 -
Exhaust temperature at Pmin. 80°C/60°C °C 69 66.8 59.6 59.6 72.4
Exhaust temperature at Pmin. 50 °C/30 °C °C 44 47.1 39.3 39.3 47.4
Exhaust temperature at Pmax. 80 °C/60 °C °C 69 65.7 63.4 63.4 71.4
Exhaust temperature at Pmax. 50 °C/30 °C °C 48 48.8 44 44 55.8
Exhaust temperature in overheat °C 70 105 95 95 95
Exhaust temperature in hot water mode (hot water
temperature 50°C) °C - 70.7 - 68 -
Value of combustion products (measured at nominal caloric rate and with G20 reference gas, in heating):
CO ppm 44 98.3 103.6 103.6 103.6
mg/kWh 47 105 110.6 110.6 104.6
CO2 % 9 9 9 9 9
NOx weighted ppm 17.5 22.6 21.9 21.9 21.9
mg/kWh 30.8 39.9 38.6 38.6 32.7
Description Units 12 KKO 25 KKV 25 KKO 30 KKV 30 KKO
Natural gas G 20 (*)
Gas ow rate at maximum power
hot water m3/h - 2.70 - 3.24 -
Gas ow rate at maximum power
heating m3/h 1.30 1.96 2.65 2.65 3.24
Gas ow rate at minimum power m3/h 0.434 0.54 0.65 0.65 0.92
Gas supply pressure mbar 20 20 20 20 20
Propane Gas G 31 (*)
Gas ow rate at maximum power
hot water kg/h - 1.98 - 2.38 -
Gas ow rate at maximum power
heating kg/h - 1.44 1.94 1.94 2.37
Gas ow rate at minimum power kg/h - 0.40 0.47 0.47 0.67
Gas supply pressure mbar - 37 37 37 37
(*) ref. 15 °C – 1013 mbar dry gas

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Control panel Panther Condens
1 Domestic hot water circuit temperature control
2 Display
3 Reset button
4 Start/stop button
5 Heating circuit water temperature control
6 Working mode selection
1 Temperature of the
domestic hot water circuit
2 Fault symbols
3 Heating circuit pressure
4 Burner on indicator
5 Heating circuit temperature
The symbol «ECO» appears when the exchanger pre-heating is deactivated.
To activate or deactivate the pre-heating function, press + and - (DHW) at the same time :
=> pre-heating deactivated : «ECO» is displayed
=> pre-heating activated : «ECO» is not displayed
2
1
3
4
5
ECO
3
2
1 6
4
5

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Safety devices
Temperature safety
(ant-freezing / overheating)
Pump anti-block
Water pressure sensor
Thermal fuse
160°C
Flame control
Gas safety valve
(EVS)
3-way valve
anti-seize
Pressure relief valve
(3 bar)
Safety Control device Values Action
Safety devices locking the appliance and requiring a RESET in the case of a fault
Overheating and
temperature limiting
Flow/return heating
NTC
97 °C => max. temperature Fault displayed F20
T° increase more than 10 K/S. Fault displayed F24
ΔT (outlet - return) > 35 K Fault displayed F23
Thermal fuse 160°C Fault displayed F76
Flame control Ignition and ionisation
electrode
Up to 5 spark sequences separated
by 7 seconds
Fault F28 if no ignition
Fault F29 if burner goes out
Gas Gas safety valve 0V when shut down
24V then 16V in operation
Display of various faults depending
on origin
Air ow rate Gas servo-controlled
by the air
The gas ow rate is proportional
to the air ow rate
Fault displayed F32 if fan fails
Safety devices not requiring a RESET after the fault clears
Antifreeze Flow NTC 7 °C --> immediate heating Burner lit up to 35°C
Pump anti-seize Internal control Activated for 30s if not activated for
24 hours
Activation without apparent demand
3-way valve
anti-seize
Activated for 30s if not activated for
24 hours
Activation without apparent demand
Heating pressure Pressure sensor Triggered at 0.5 bar
Reset at 0.3 bar
Display below 0.3 bar
display blinking between 0.3 and 0.5 bar
Heating valve Opens at 3 bar Evacuation of excess pressure
(display blinking below 2.5 bar)
Non return valve on lling
system

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Air/gas servo :
Control unit
Gas
mechanism
Modulating gas valve
Venturi Burner
Fan
The heart of the automatic control is made up of:
- a modulating valve controlled by a diaphragm
- A governor
- a venturi crossed by some of the air from combustion which initiates the gas ow.
The air needed for combustion crosses the venturi, at the fan entrance. The partial vacuum created at the neck of the venturi is then
transmitted to the gas valve.
The gas valve regulator controls the ow of gas according to the airow: when the fan speed decreases, the regulator reduces the gas
ow rate by acting on the modulating valve. On the other hand when the speed of the fan increases, the regulator increases the gas ow
rate.

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
The gas valve :
Safety valves (a)
Gas
inlet
Modulating
gas valve
Gas high ow reducer
(screw acting as diaphragm)
Modulating gas valve operated by air
ow:
Mechanism in closed position:
The gas safety valves (a) are closed.
Gas does not ow.
The pressure P0 of the gas under the
modulating valve membrane and under
the regulator membrane is identical.
Gas valve at high ow rate:
Channel 1
Channel 2
Channel 3
For settings, refer to the “Maintenance”
chapter.
The 2 safety valves (a) are supplied at 24
V DC: they are thus open.
The gas pressure arrives at the regulator
valve via channel 1, and continues to the
membrane of the modulating valve via
channel 2.
The fan operating at its maximum speed
causes a reduction in pressure which is
transmitted under the regulator mem-
brane via channel 3. The regulator
valve then closes and all the gas pressure
is concentrated under the modulating
valve membrane which now opens to its
maximum.
Gas
inlet
Safety valves (a)
Channel 1
Channel 2
Channel 3
Gas
inlet
Safety valves (a)The fan speed decreases.
The pressure under the regulator mem-
brane tends to increase. The regulator
valve gradually opens. An escape ow
is established via channel 3 to the fan.
This escape ow causes the pressure P2
to fall under the modulating valve mem-
brane. The modulating valve closes to a
greater or lesser extent depending on the
size of the escape ow in channel 3.
Gas valve in the modulation phase:

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
The relation between the fan speed and the usable heating power supplied by the boiler
Vmin Vmax
Panther Condens
Theoretical fan speed Units 12 KKO 25 KKV 25 KKO 30 KKO
Max. theoretical speed adjustable
from:
to: rpm 4800
3810
6600
5610
6500
5510
6800
5810
This value is adjustable in the After-Sales menu, data item d51
Max. theoretical speed adjustable
from:
to:
rpm 1200
2190
1200
2190
1200
2190
1300
2290
This value is adjustable in the After-Sales menu, data item d50
These values are only for information : it can change on the time with the soft.

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Hydraulic unit of Panther Condens:
Heating pressure valve
Plate heat exchanger** Automatic air vent
2 speed
pump
By-pass
3-way valve motor*
Screw giving access
to the motor shaft for
unblocking
Base plate
(made from composite
material) Cold water inlet
ow sensor*
* Not fitted to System version
** Replaced by a pipe support plate (for possible connection to an exchanger tank)

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
B - 2nd exchange
stage
(condenser)
C - Deector
Flue products Combustion air
A- 1st
exchange stage
Air inlet silencer:
the silencer channels the air once
it has entered the chamber thus
avoiding airow noise inside the
equipment. Its venturi shape also
aids the airow.
Gas valve
Gas
Fan
Heating
ow
Condensation
Burner
Heat
exchanger
Heating
return
The heat exchanger:
Is made up of attened stainless steel tubes in a spiral.
The heat transfer is carried out in two stages:
- the rst stage (A) uses 5 elements depending on the model (each element has 4 turns), in direct contact with the ame.
- the second stage (B) (the cold stage) uses an element placed behind a deector (C). This is heated by the ue products just before
they are evacuated. This is where the condensing occurs.
C - Deector
B - 2nd exchange
stage
(condenser)

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>>> Technical Specification ..................................................
Formation TechniqueF ormation Technique
Formation TechniqueF ormation Technique
Regulation: general functions
The burner can be lit following two different procedures depending on the prior condition of the unit:
• If the boiler has been switched off:
On lighting after the electricity has been cut off (using the ON/OFF button or
by disconnecting the cable), the boiler tests the circulation of water in the circuit.
The procedure is as follows:
- rst a pre-ush of the pump depending on temperature
- burner lights P = 90% of P. max and 3 seconds of stabilisation.
- the outgoing temperature must rise by at least 5K.
If not:
- the burner then goes to max. power for 15 seconds.
As soon as the 5K temperature rise is detected, the burner goes into
normal operation.
Otherwise the boiler cuts out indicating a fault (ashing display).
Note: This is the same display as for lack of water pressure.
This function is very useful to avoid overheating when the installation
has not been fully bled (particularly at commissioning).
• If the boiler is already switched on:
The principle is the same as case A, except the burner starts at about 60% of maximum power and looks for an increase of 2K instead
of 5K.
After the ignition phase, the regulator controls the burner in heating (reduction to Pmin) or hot water (the power is adjusted according
to the need).
• Temperature regulation:
After ignition, the burner then goes into reduced power for 1 to 5 minutes:
- 1 minute if heating requirements are high
- 5 minutes if the heating requirements are lower.
After this period the power is released to be used as required.
The reason for this forcing to minimum power is to favour condensation.
The burner turns off at the setting +2K.
Note: it is recommended to use a modulating thermostat rather than a time-
proportional one with this type of regulation to avoid interference.
TUV
VV
(ot/min)
Burner lights
P = 90% of P. max
3 seconds
Pump pre-run
DT < 5°C =>
P = 100% of P. max.
for 15 seconds max.
DT ≥ 5°C => OK
DT < 5°C =>
Flashing display
and made safe.
Normal
operation
DT ≥ 5°C => OK
Normal
operation

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Regulation:
• Domestic hot water control:
Regulation of tank heating (system boilers):
There are 2 types of regulation allowed for a tank: either regulation by thermostat (ON/OFF contact) or regulation by NTC thermistor.
In either case, the starting of the burner for a tank heating requests is preceded by a 30s pre-ush of the heating pump. This avoids the
boiler being locked out in the case of too large a temperature difference between the tank and boiler temperatures.
Tank equipped with a thermostat:
- The closing of the thermostat conta,
- the temperature of the primary circuit feeding the tank exchanger is 75°C (burner cut-off at 80°C).
- the opening of the thermostat contact stops the burner and triggers a 30s pump post-ush.
Tank equipped with an NTC thermistor:
(NTC value: see table in “accessories” chapter)
The tank temperature is set directly in the user menu, on the control panel (which is identical to the mixed version
control panel).
The thermistor allows continuous control of the tank temperature and consequent regulation of the primary circuit
temperature.
Tank heating start-up: when the tank temperature drops below the set temperature less 5K, the 3-way valve goes to
the hot water position and the heating pump starts up.
Heating stops when the NTC measures the setpoint in the tank. The pump carries out a 30s post-ush (3-way valve
still in hot water position) and then stops.
The regulation, in the case of a tank equipped with an NTC, is assisted by self-modication: the sensor measures the
temperature 5 minutes after the burner shuts down. If the set point has been exceeded, a correction is applied to the
next heating (the burner stops at a lower temperature to prevent a repetition of this temperature excess).
The primary temperature depends on the setting to facilitate condensation: it is calculated at 15K below the hot water
setting. In the case of scale in the tank, the primary temperature is pushed to the maximum.
Regulation during hot water draw (mixed boiler):
- demand detection:
The burner is triggered in by a draw of 1.5l/min. It stops at 1.1 l/min. This hysteresis avoids having the burner in an unstable
region (repetitive starts/stops).
- temperature regulation:
The primary regulation is performed by a calculation of the temperature setting on the primary circuit return. This calculation
depends on the draw rate and the hot water temperature setting.
The hot water setting is controlled by the temperature sensor in the primary return circuit (NTC5) in order to limit the inuence of
the cold water temperature on the hot water temperature.
The presence of a solar tank is automatically detected by the solar thermistor being connected to the main circuit board (in position
X32).
There is no adjustment needed: the card records, at each draw, the time that it takes for the solar hot water to arrive at the boiler cold
water inlet. It then applies this time to the following draw with an upper limit of 30 seconds.
For example: at the rst draw, the burner starts immediately but the hot water takes 10s to arrive at the boiler.
On the next draw, the boiler will wait 10s before starting and record the new time the solar hot water takes.
Thus the burner start-up time delay is constantly corrected for temperature variations in the solar tank.

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>>> Technical Specification ..................................................
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Formation TechniqueF ormation Technique
Regulation:
• Frost protection:
The frost protection function is activated when the temperature falls below 12°C at the start of the heating circuit.
The pump then runs for 10 minutes with the 3-way valve in the mixed position (central valve position to feed both the heating circuit
and the plate heat exchanger):
- If the temperature of the heating circuit falls below 7°C, the burner lights and remains alight until the temperature at the start of the
heating circuit reaches 35°C.
- If the temperature remains between 7 and 15°C, the burner lights after 30 minutes to raise the temperature to 35°C.
- If the temperature exceeds 15°C, the pump runs for 30 minutes and then stops.
• Protection against overheating and temperature limiting:
The outlet / return thermistors protect the boiler against overheating by checking the maximum outlet temperature (97 ° C with the
burner lit or 110 º C for 3 s with burner off).
Complimentary conditions related to the ow rate in the installation:
- check on the speed of temperature rise (10K/s max.)
- checking the temperature difference outlet – return:
- if ΔT (outlet-return) > 30K => the burner is forced to minimum power for 10 minutes
- if ΔT (outlet-return) > 35K => display of fault F23 initially volatile. If the fault repeats 5 times, the boiler shuts down and
a “reset” becomes necessary.
(Note: if the burner runs for at least 60 seconds, the counter is reset to zero)
T < 12°C
3-way in mixed position
+ pump ON for 10 mins
T = 7°C
Burner ON
T = 35°C
Pump 30 minutes
post-ush
7°C < T < 15°C
pump for
30 min
then burner on
up to 35°C
T > 15°C
Pump 30 minutes
pump OFF, 3-way
in initial position

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>>> Technical Specification ...................................................
Formation TechniqueF ormation Technique
Access to installer and After-Sales menus :
The display has hidden menus accessible by entering a code.
This code is of interest to two groups of professionals:
- The installer who needs to congure the appliance during installation => code 96
- The after-sales service who may need to change parts and then recongure them for the appliance => code 35
The installer menu gives access to a restricted list of data items whereas the After-Sales menu gives access to all the data items
(installation + after-sales).
To access installer or after-sales menu:
Press the mode button (1) for about 7 seconds; the display layout will change.
- Using the + or - button (2), display code 96 or 35.
- Conrm with the mode button (1).
The display then shows line 1 of the menu.
To change a value:
- Modify the value of the displayed data item using the + or – button (3) on the boiler.
- the change is automatically accepted after 3 seconds.
To return to the normal display, press the “mode” button for 3 seconds.
After 15 minutes of inaction, the display returns to normal operating mode.
VAL
kW
213
data value data
Enter code
35 or 96