Seitron RKP01M User manual

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CONTENTS OF THE PACKAGE
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OPTIONAL COMPONENTS
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CLIMATE CONTROL UNIT (1 piece)
Code RK P01M
EXTERNAL TEMPERATURE PROBE (1 piece)
Code ST ED01
REMOTE CONTROL
Code ACC RK3 COM
ROOM TEMPERATURE PROBE
Code ST AD01
SUPPLY/RETURN TEMPERATURE PROBE (2 pcs)
Code ST CD02
RELAY MODULE TO CONVERT LIVE CONTACTS TO
VOLTAGE FREE CONTACTS
Code ACC REL 02

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MAIN CHARACTERISTICS
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Power supply 230V~
4 outputs (3 on/off under power + 1 with voltage free
contacts)
6 inputs (4 probes + 1 ambient remote control + 1
remote switch)
Wide backlit LCD display allows you to view the
configuration of the hydraulic chart of the system, the
status of the outputs, the status of the sensors and
other various information and data.
Main func ions:
Adjustment of the supply water temperature with 3
way motorized mixing valve with 3 point control and
circulation pump
Adjustment of the temperature of the boiler with 1 or 2
stage control of the burner
The temperature of the supply water or of the boiler can
be adjusted according to:
the temperature of the outside air
the temperature of the outside air and the ambient
temperature
O her func ions:
Remote control with ambient controller (to change to
the set temperature by ±5°C)
Remote switch (to which it is possible to connect an
on/off switch that replaces the internal chrono)
Hourly weekly programming with 4 room temperature
control modes:
Comfort Economy Anti freeze OFF
Up to 4 types of systems
Freeze protection of the system
Offset on the external probes
Anti condensation function with dedicated pump
Anti blocking function of the circulation pump
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TECHNICAL FEATURES
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Power supply: ±230V~ ±10% 50/60Hz
Maximum consumption: <1,5 VA
Type of sensors: NTC 10K @25°C B3977
Sensor operation limit: 20 °C .. +120 °C
Accuracy: ± 1.0°C
Temperature reading field: 20°C .. +120°C (probes)
±5°C (remote controller)
Resolution: 0.1°C
Contact capacity: 3 x 2(1)A@250V~ SPST
live
1 x 2(1)A@250V~ SPDT
voltage free
Degree of protection: IP 40
Backlight off: ~20 seconds from last key
pressed
Operating temperature: 0°C .. 40°C
Storage temperature: 10°C .. +50°C
Humidity limits: 20% .. 80% RH
(non condensing)
Container: Material: Self extinguishing ABS V0
Colour: Signal white (RAL 9003)
Size: 156 x 108 x 47 mm
(L x A x P)
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DIMENSIONS
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A
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WARRANTY
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As part of our continuous product development, the
manufacturer reserves the right to make changes to the
technical data and specifications without notice.
The consumer is guaranteed against any lack of
conformity of the product in accordance with European
Directive 1999/44/c as well as the manufacturer’s
warranty policy.
The full text of the warranty is available on request from
the seller.
156mm
108mm
46.5mm

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INSTALLATION
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a WARNING
- The ins aller mus abide by all applicable echnical
s andards in order o ensure he safe y of he
sys em.
- Before making any connec ions, make sure ha
he mains is disconnec ed.
TO INSTALL THE DEVICE, PERFORM THE
FOLLOWING OPERATIONS:
1. Remove the screw indicated and remove the cover.
2. Remove the two screws shown and separate the
cover with the electronics from the bottom.
3. ASSEMBLY WITH CABLE ENTRY ON THE BACK:
If the installation does not require the use of cable ties
(supplied), remove, with the help of a screwdriver, the
dowels at the base needed for the passage of the
cables, and at step 6 insert the dowels supplied.
4. Secure the base of the unit to the wall.
5. Replace the cover with the electronics at the bottom.
6. ASSEMBLY WITH CABLE ENTRY ON THE
BOTTOM:
Insert the cable ties and/or dowels supplied.
130mm

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8. Make the electrical connections according to the hydraulic diagram chosen in the installer parameter "P1 SCH".
Following are the descriptions of the four systems possible.
No es:
If the ambient probe "TA" is connected, the calculation of the compensated supply water temperature "TDC" is
automatic.
If the Remote Control "RC" is connected, the calculation of the Set Point temperature "TC" or "TR" is automatic.
The calculation of the supply water temperature, "TD" or "TDC", takes into account the limitations set in the installer
parameter P2 in "TDL" and "TDM".
Unit OFF: the servo motor is closed with a pulse equal to "Imax" (see paragraph "Adjustment with mixing valve with
3 point servo motor and circulation pump").
If the measured supply water temperature "Td" is less than the temperature detected by the external probe "Te", the
servo motor will be closed with a pulse equal to "Imax" (see paragraph "Adjustment with mixing valve with 3 point
servo motor and circulation pump").
LEGEND:
TAF OFF: Enable / Disable anti freeze
TAF: Anti freeze temperature
I_MAX: Maximum opening or closing pulse
TCO OFF: Enable / Disable Cut Off
TCO: Cut Off temperature
on: Servo motor ON command time
of: Servo motor OFF command time
DEL: Pump OFF delay
TAL: Periodic activation of pump
TD: Calculated supply temperature
Te: External temperature probe
Td: Supply water temperature probe
Ta: Ambient temperature probe
RC: (Remote Controller) allows you to change the ambient temperature set from the user menu U4>TCR by ±5°C
EXTERNAL CONTACT: On/off switch, that replaces the internal weekly programmer
Hydraulic diagram 'SCH_1':
Heating system with the control of a 3 point servo motor and a
circulation pump. Possibility of compensation by means of a "Ta"
probe and/or a remote control "RC" (neither have to be
connected).
Wiring diagram
WARNING
The outputs OUT 1, OUT 2 and OUT 3 are powered 230V; if a voltage free command is
required, use the specific accessor for voltage free contacts.

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Wiring diagram
LEGEND:
TAC OFF: Enable / Disable anti condensation
function
TAC: Anti condensation temperature
TAF OFF: Enable / Disable anti freeze
TAF: Anti freeze temperature
I_MAX: Maximum opening or closing pulse
TCO OFF: Enable / Disable Cut Off
TCO: Cut Off temperature
on: Servo motor ON command time
of: Servo motor OFF command time
DEL: Pump OFF delay
TAL: Periodic activation of pump
TD: Calculated supply temperature
Te: External temperature probe
Td: Supply water temperature probe
Tr: Return water temperature probe
Ta: Ambient temperature probe
RC: (Remote Controller) allows you to change the ambient temperature set from the user menu U4>TCR by ±5°C
EXTERNAL CONTACT: On/off switch, that replaces the internal weekly programmer
Hydraulic diagram 'SCH_2':
Heating system with the control of a 3 point servo motor, a
circulation pump, an anticondensate pump and a return water
temperature probe.
This diagram provides for the use of the recirculation pump and
the return probe .Tr.
Possibility of compensation by means of a "Ta" probe and/or a
remote control "RC" (neither have to be connected).
No es:
If the ambient probe "TA" is connected, the calculation of the compensated supply water temperature "TDC" is
automatic.
If the Remote Control "RC" is connected, the calculation of the Set Point temperature "TC" or "TR" is automatic.
The calculation of the supply water temperature, "TD" or "TDC", takes into account the limitations set in the installer
parameter P2 in "TDL" and "TDM".
Unit OFF: the servo motor is closed with a pulse equal to "Imax" (see paragraph "Adjustment with mixing valve with
3 point servo motor and circulation pump").
If the measured supply water temperature "Td" is less than the temperature detected by the external probe "Te", the
servo motor will be closed with a pulse equal to "Imax" (see paragraph "Adjustment with mixing valve with 3 point
servo motor and circulation pump").
WARNING
The outputs OUT 1, OUT 2 and OUT 3 are powered 230V; if a voltage free command is
required, use the specific accessor for voltage free contacts.
In the event that the boiler is designed to operate even at low return temperatures, without damage, it is
possible to turn the circulation pump OFF b setting the return temperature under 10°C. The displa will
show "OFF-TAC". The return probe Tr must still be connected to the terminals "Tr" even if the recirculation
pump is not used.

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Wiring diagram
LEGEND:
TAC OFF: Enable / Disable TAC function
TAC: Anti condensation temperature
TAF OFF: Enable / Disable TAF function
TAF: Anti freeze temperature
TCO OFF: Enable / Disable Cut Off
TCO: Cut Off temperature
DEL: Pump OFF delay
TAL: Periodic activation of pump
TD: Calculated supply temperature
b1 off: Enable / Disable tb1 function
b1: Burner 1 ON on minimum
o1 off: Enable / Disable to1 function
o1: Burner 1 OFF on minimum
Te: External temperature probe
Td: Supply water temperature probe
Tr: Return water temperature probe
Ta: Ambient temperature probe
RC: (Remote Controller) allows you to change the ambient temperature set from the user menu U4>TCR by ±5°C
EXTERNAL CONTACT: On/off switch, that replaces the internal weekly programmer
No es:
If the ambient probe "TA" is connected, the calculation of the compensated supply water temperature "TDC" is
automatic.
If the Remote Control "RC" is connected, the calculation of the Set Point temperature "TC" or "TR" is automatic.
The calculation of the supply water temperature, "TD" or "TDC", takes into account the limitations set in the installer
parameter P2 in "TDL" and "TDM".
Hydraulic diagram 'SCH_3':
Heating system with the 2 point control (ON/OFF) of a single
stage burner and a circulation pump.
This diagram provides for the use of the recirculation pump and
the return probe .Tr.
Possibility of compensation by means of a "Ta" probe and/or a
remote control "RC" (neither have to be connected).
WARNING
The outputs OUT 1, OUT 2 and OUT 3 are powered 230V; if a voltage free command is
required, use the specific accessor for voltage free contacts.
In the event that the boiler is designed to operate even at low return temperatures, without damage, it is
possible to turn the circulation pump OFF b setting the return temperature under 10°C. The displa will
show "OFF-TAC". The return probe Tr must still be connected to the terminals "Tr" even if the recirculation
pump is not used.

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Wiring diagram
No es:
If the ambient probe "TA" is connected, the calculation of the compensated supply water temperature "TDC" is
automatic.
If the Remote Control "RC" is connected, the calculation of the Set Point temperature "TC" or "TR" is automatic.
The calculation of the supply water temperature, "TD" or "TDC", takes into account the limitations set in the installer
parameter P2 in "TDL" and "TDM".
LEGEND:
TCO OFF: Enable / Disable Cut Off
TCO: Cut Off temperature
DEL: Pump OFF delay
TAL: Periodic activation of pump
TD: Calculated supply temperature
b1 off: Enable / Disable tb1 function
b1: Burner 1 ON on minimum
b2 off: Enable / Disable tb2 function
b2: Burner 2 ON on minimum
o1 off: Enable / Disable to1 function
o1: Burner 1 OFF on minimum
o2 off: Enable / Disable to2 function
o2: Burner 2 OFF on minimum
Te: External temperature probe
Td: Supply water temperature probe
Tr: Return water temperature probe
Ta: Ambient temperature probe
TAC: Anti condensation temperature
TAC OFF: Enable / Disable TAC function
TAF OFF: Enable / Disable TAF function
TAF: Anti freeze temperature
RC: (Remote Controller) allows you to change the ambient temperature set from the user menu U4>TCR by ±5°C
EXTERNAL CONTACT: On/off switch, that replaces the internal weekly programmer
Hydraulic sys em 'SCH_4':
Heating system with the control of a two stage burner and a
circulation pump.
This diagram provides for the use of the recirculation pump and
the return probe .Tr.
Possibility of compensation by means of a "Ta" probe and/or a
remote control "RC" (neither have to be connected).
WARNING
The outputs OUT 1, OUT 2 and OUT 3 are powered 230V; if a voltage free command is
required, use the specific accessor for voltage free contacts.
In the event that the boiler is designed to operate even at low return temperatures, without damage, it is
possible to turn the circulation pump OFF b setting the return temperature under 10°C. The displa will
show "OFF-TAC". The return probe Tr must still be connected to the terminals "Tr" even if the recirculation
pump is not used.

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OPERATING LOGIC
Opera ing logic in accordance wi h he hydraulic diagram 'SCH_1' (see page 6):
Opera ing logic in accordance wi h he hydraulic diagram 'SCH_2' (see page 7):
Uni OFF
Uni ON
Uni OFF
Uni ON

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Opera ing logic in accordance wi h he hydraulic diagram 'SCH_3' (see page 8):
Opera ing logic in accordance wi h he hydraulic diagram 'SCH_4' (see page 9):
Uni ON
Uni OFF
Uni ON
Uni OFF

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9. Close the unit by replacing the cover.
a WARNING
When closing he uni make sure ha he
ex rac able erminal boards have been inser ed
correc ly ( he screws of he erminal board mus be
facing upwards).
a WARNING
- For he correc adjus men of he ambien and
ex ernal empera ure, i is recommended o ins all
he probes away from sources of hea , air
curren s or par icularly cold walls ( hermal
bridges).
- To connec he probes use cables wi h a
minimum cross-sec ion of 1.5 mm² and a
maximum leng h of 25 m. Do no pass he probe
cables hrough he mains condui s.
- Connec he device o he mains supply by means
of a bipolar swi ch complying wi h he
regula ions in force and wi h a con ac opening
dis ance of a leas 3 mm in each pole.
- Il he load driven by he relay of he
programmable hermos a works a he mains
vol age, i is necessary ha he connec ion is
made by means of an omnipolar swi ch complying
wi h he regula ions in force and wi h a con ac
opening dis ance of a leas 3 mm in each pole.
- The ins alla ion and elec rical connec ion of he
device mus be carried ou by rained personnel
and in compliance wi h applicable laws.
- Before making any connec ions, make sure ha
he mains power is disconnec ed.
POWER SOURCE
It is advisable to add to a fuse to the power supply line,
of a capacity suitable for the loads connected, which
intervenes in the event of a short circuit.
The maximum capacity of the fuse cannot be greater
than 10A 250V~.
EARTH TERMINAL
On the base of the unit is a brass terminal board to
connect the protective earth conductors of the various
devices connected to the unit.
LOADS
PUMP (C-NO-NC): Circulation pump output with
voltage free changeover contacts
(SPDT).
OUT 1 (L1-N): ON/OFF output (powered).
OUT 2 (L2-N): ON/OFF output (powered).
OUT 3 (L3-N): ON/OFF output (powered).
PROBES
The climate regulator accepts the following type of
temperature probes: NTC 10KΩ @ 25°C ±1%.
Te (Ex ernal empera ure probe): probe, fixed to the
wall, to be placed outside (probe supplied).
Td (Supply wa er empera ure probe): probe, fixed to
a pipe, to be placed on the supply water piping (probe
supplied).
Tr (Re urn wa er empera ure probe): probe, fixed to a
pipe or well, to be placed on the return water piping
(probe supplied).
Ta (Ambien empera ure probe): probe, fixed to the
wall, to be placed inside the room where the
temperature is to be adjusted (probe purchased
separately).
NOTES FOR THE ELECTRICAL CONNECTIONS
The following page shows he resis ance values of
he probes.
EXTERNAL CONTROLS:
It is possible to connect two devices to the climate
regulator, which will affect the adjustment of the ambient
temperature:
RC (remo e con rol): input for the connection of a
remote control which allows you to change the comfort
"TC" or economy "TR" temperature set by ±5°C
(accessory purchased separately).
EXTERNAL CONTACT: input for the connection of an
ON/OFF contact (for example a switch, a timer, a
thermostat or programmable thermostat), which will
replace the function of the internal programmable
thermostat (accessory purchased separately).
Note: Only if a thermostat or a programmable
thermostat is connected it is not compulsory to wire the
room temperature probe.

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PROBE TABLE
Resistance @ 25℃: 10,00㏀ ±1,0% B Constant: 3977K (25℃/85℃) ±1,0%
Temp℃ Ravg ㏀ Temp℃ Ravg ㏀ Temp℃ Ravg ㏀ Temp℃ Ravg ㏀ Temp℃ Ravg ㏀ Temp℃ Ravg ㏀
20 96,26 2 29,49 24 10,45 46 4,1961 68 1,8744 90 0,9169
18 85,88 4 26,68 26 9,572 48 3,8835 70 1,7502 92 0,8626
16 76,72 6 24,17 28 8,776 50 3,5973 72 1,6355 94 0,8121
14 68,64 8 21,92 30 8,054 52 3,3351 74 1,5294 96 0,7650
12 61,48 10 19,91 32 7,339 54 3,0946 76 1,4312 98 0,7211
10 55,15 12 18,10 34 6,804 56 2,8738 78 1,3402 100 0,6801
8 49,53 14 16,47 36 6,263 58 2,6710 80 1,2560
6 44,54 16 15,00 38 5,770 60 2,4844 82 1,1778
4 40,10 18 13,69 40 5,3212 62 2,3128 84 1,1052
2 36,15 20 12,50 42 4,9117 64 2,1546 86 1,0378
0 32,63 22 11,42 44 4,5378 66 2,0089 88 0,9751
Tc = Comfort Temperature (set in the parameter) = 20°C,
KS = External Compensation Coefficient, Te = External Temperature
KS KS KS KS KS KS KS KS KS KS
0,5 1 1,5 2 2,5 3 3,5 4 4,5 5
Te TD TD TD TD TD TD TD TD TD TD
30 45 70 95 120 145 170 195 220 245 270
20 40 60 80 100 120 140 160 180 200 220
10 35 50 65 80 95 110 125 140 155 170
0 30 40 50 60 70 80 90 100 110 120
10 25 30 35 40 45 50 55 60 65 70
20 20 20 20 20 20 20 20 20 20 20
30 15 10 5 0 5 10 15 20 25 30
40 10 0 10 20 30 40 50 60 70 80
TD = Tc + [KS x (Tc Te)]
Supply temperature calculated on the basis of the compensation with the External temperature Te
TDC = TD + Dta = TD + [KA x (Tc Ta)]
Supply temperature calculated on the basis of the compensation with the temperatures Te and Ta
KA KA KA KA KA KA KA KA KA KA
0,5 1 1,5 2 2,5 3 3,5 4 4,5 5
Te dTDA dTDA dTDA dTDA dTDA dTDA dTDA dTDA dTDA dTDA
30 25 50 75 100 125 150 175 200 225 250
20 20 40 60 80 100 120 140 160 180 200
10 15 30 45 60 75 90 105 120 135 150
0 10 20 30 40 50 60 70 80 90 100
10 5 10 15 20 25 30 35 40 45 50
20 0 0 0 0 0 0 0 0 0 0
30 5 10 15 20 25 30 35 40 45 50
40 10 20 30 40 50 60 70 80 90 100
dTDA = [KA x (Tc Ta)]
Value that is added to TD which is compensated also via the ambient probe Ta
Tc = Comfort Temperature = 20°C (set in the parameter),
KA = Ambient Compensation Coefficient, Ta = Ambient Temperature
COMPENSATION COEFFICIENT KS TABLE
COMPENSATION COEFFICIENT KA TABLE

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OPERATING PRINCIPLES OF THE CLIMATE REGULATOR
The climate regulator controls and adjusts the ambient temperature by controlling the supply water temperature, TD,
depending on three parameters:
Theoretical temperature set (TC = Comfort Temperature or TR = Economy Temperature)
External temperature (detected by the "Te" probe connected)
Speed of response of the entire system based on the variations of the external temperature, by means of the
adjustment factor KS settable by means of the installer parameter P2.
The formula to calculate the supply water temperature in comfort mode is the following:
TD = TC + [KS x (TC Te)]
The formula to calculate the supply water temperature in economy mode is the following:
TD = TR + [KS x (TR Te)]
Note:
Climate control is influenced by the presence of the probe that detects the ambient temperature and/or the presence
of the Remote Control, as described below.
Compensa ion wi h ambien empera ure
When a probe that detects the ambient temperature is connected to the unit ("Ta" icon ON), the climate regulator will
be able to calculate the adjustment of the compensated supply water temperature, TDC, based on the actual
tendency of the ambient temperature as a function of the following parameters:
Theoretical temperature set (TC = Comfort Temperature or TR = Economy Temperature)
External temperature, detected by the "Te" probe connected
Ambient temperature, detected by the "Ta" probe connected
Compensation coefficient relative to the ambient temperature "KA" settable by means of the installer parameter P2.
Note: If the ambient probe is not connected, when scrolling the parameters P2 DAT, "KA" will no longer appear.
The formula to calculate the compensated supply water temperature with the ambient temperature in comfort mode is
the following:
TDC = TD + [KA x (TC Ta)]
The formula to calculate the compensated supply water temperature with the ambient temperature in economy mode
is the following:
TDC = TD + [KA x (TR Ta)]
Warning:
Place the ambient probe in the place where you want to adjust the ambient temperature, otherwise the adjustment
will be distorted.
If the value of TDC resulting from the calculation exceeds the maximum value allowed for the supply temperature,
the value of TDC will be automatically limited to the value of "TDM", settable by means of the installer parameter P2.
If the ambient probe is not connected, the function is disabled and the "Ta" icon will not appear on the display.
Compensa ion wi h Remo e Con rol
When the Remote Controller "RC" is connected to the unit, the compensation of the supply water temperature "TD" or
"TDC" is enabled.
The compensation is obtained taking into account the new value of the Comfort or Economy temperature, "TC" or
"TR", calculated on the basis of the value set on the Remote controller. The Remote Controller allows the variation of
the Comfort or Economy temperature set in a range between ± 5°C.
For example, if the Comfort temperature "TC" has been set to 20°C and on the Remote Controller a value of +2°C is
selected, the new Comfort value will be 22°C.
Warning:
If the value of "TD" or "TDC" resulting from the calculation exceeds the maximum value allowed for the supply
temperature, the value of "TD" or "TDC" will be automatically limited to the value of "TDM", settable by means of the
installer parameter P2.
If the Remote Controller is not connected, the function is disabled and the "RC" icon will not appear on the display.

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ADJUSTMENT OF A MIXING VALVE WITH 3-POINT SERVO MOTOR AND CIRCULATION PUMP
If the heating system features a mixing valve with a three point servo motor, the mixing valve is driven for a
proportional time " on" calculated considering the difference between the calculated supply water temperature "TD"
and the supply water temperature measured by the probe "Td". This time will be a maximum of 10 seconds if a 3 5
minute servo motor is used, whereas it will be a maximum of 20 seconds if a 6 10 minute servo motor is used.
The activation time is followed by a fixed waiting time equal to approximately 10 seconds in order to thermally
stabilize the system. The adjusting proportional band "Bp" has a range of ±10°C, compared to the calculated supply
water temperature, whereas the range of the resting proportional band "Br" is of ±2°C, yet again compared to the
calculated supply water temperature "TD" or compensated with the ambient temperature "TDC".
Maximum opening/closing pulse ("I max") of he servo mo or
The maximum pulse has a fixed duration and it is determined by the type of servo motor set in the parameter "TYP".
This value is the time that the servo motor takes to perform a complete opening or closing:
3 5 minute servo motor (I max = 6 minutes)
6 10 minute servo motor (I max = 11 minutes)
Calcula ion of he dura ion of he Opening and Closing pulse (" on") of he servo mo or
Open command: if Td < TD or if Td < TDC.
Close command: if Td ≥ TD or if Td ≥ TDC.
The unit calculates the time depending on the type of servo motor used.
3 5 minute servo motor
maximum on = 10 seconds
6 10 minute servo motor
maximum on = 20 seconds
Calcula ion of he wai ing pulse (" of") of he servo mo or
The waiting pulse, that has the aim to thermally stabilize the system, has a fixed duration, independent of the servo
motor used, equal to:
of = 10 seconds
Circula ion pump con rol
The circulation pump is controlled according to the parameter “P7 PMP", unless the unit has not been turned "OFF".
If the circulation pump is off, the closing impulse for the mixing valve is deactivated when the following time interval
has passed:
For the 3 .. 5 minutes servo motors, I max + 4 minutes = 10 minutes
For the 6 .. 10 minutes servo motors, I max + 4 minutes = 15 minutes
In case the circulation pump is active, the controls to the mixing valve are sent to the latter according to what is
described above.
Adjus men of he Comfor /Economy empera ure depending on he ex ernal empera ure
If the set temperature, Comfort or Economy, even corrected by the value set on the Remote Control, is less than the
value of the external temperature, the unit will not adjust it and the servo motor will be closed with a pulse equal to
the maximum, "I max" (adjustment for heating systems where the supply water temperature "Td" cannot be less than
the external temperature "Te").
LEGEND:
TD: Calculated supply water temperature
TDC: Compensated supply water temperature
Td: Measured supply water temperature
I max: Maximum opening / closing pulse determined by the type of servo motor set
on: Duration of the closing and opening pulse
of: Duration of the waiting pulse
Bp: Adjusting proportional band
Br: Resting proportional band

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Sample diagram of he ac iva ion of a mixing valve wi h a 3-poin , 6-10minu e servo valve
Note: chart not to scale.
Td (°C)
% Mixing Valve Opening
Br Br+ TD
50 60 40
0%
50%
100%
Opening
Closure
Bp
Br
maximum ton = 20 sec.
tof = 10 sec.
ton = 4 sec.
tof = 10 sec.

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ADJUSTMENT WITH SINGLE OR TWO STAGE BURNERS
The climate regulator manages burners with one or two stages. In the latter case, the burners operate for most of the
days during which heating is needed on the first stage (base load). In the case of low outside temperatures that
directly affect the supply water temperature, the burner switches to the second stage (greater heating). The system
adapts instantly to the new heat demand.
This two stage technology guarantees an optimal adjustment of the burner to external weather conditions.
SINGLE-STAGE BURNER
Flame adjustment
Burner ON if Td ≤ (TD ΔTD) => Minimum ignition time of burner 1 = b1.
Burner OFF if Td ≥ TD => Minimum extinction time of burner 1 = o1.
Note:
If compensation is made b means
of the ambient temperature probe,
insert the value TDC instead of TD.
Ac iva ion char as a func ion of ime
Circula ion pump con rol
The circulation pump will always be on, unless the unit is switched "OFF".
BURNER ON BURNER OFF ΔTD
(TD - ΔTD) TD Td °C
LEGEND:
TD: calculated supply water temperature
ΔTD: hysteresis of the burner
TDC: compensated supply water temperature
Td: measured supply water temperature
tb1: minimum ignition time of burner 1, set in the parameter "tb1"
tb2: minimum ignition time of burner 2, set in the parameter "tb2"
to1: minimum extinction time of burner 1, set in the parameter "to1"
to2: minimum extinction time of burner 2, set in the parameter "to2"
Td (°C)
TDM
TD ΔTD
tb1 to1 tb1 to1
BURNER
CIRCULATION PUMP
ON
ON
OFF
OFF
TIME

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TWO-STAGE BURNER
By using a burner with two separate stages, the adjustment of the two flames is carried out separately.
Adjustment of first flame
The value of the activation differential of the first flame is equal to the value set in the parameter "ΔTD" divided by 2,
Therefore we get:
First Flame ON if => Minimum activation b1 (in sec.)
First Flame OFF if Td ≥ TD => Minimum deactivation o1 (in sec.)
Adjustment of second flame
The second stage of the burner is activated only if the external temperature goes below a certain value, since the
external temperature directly affects the supply temperature, causing it to drop. The activation differential of the
second flame is equal to the value set in parameter "ΔTD", whereas for deactivation the value ΔTD/2 is considered.
In particular we get:
Second Flame ON if Td ≤ (TD ΔTD) => Minimum activation b2 (in sec.)
Second Flame OFF if => Minimum deactivation o2 (in sec.)
Circula ion pump con rol
The circulation pump will always be on, unless the unit is switched "OFF".
a WARNING
When managing he burners, bo h wi h one s age and wi h wo s ages, he following considera ions mus be
aken in o accoun .
Minimum igni ion and ex inc ion ime of he burners
To avoid that ignitions and extinctions of the burners are too short and cause them to get blocked, set the minimum
ignition and extinction time of the burners.
For the appropriate time, refer to the manual or the manufacturer of the boiler and set them using the dedicated
installer parameters P2: " b1", " o1" and " b2", " o2".
Adjus men of burners and pumps in he even ha he uni is swi ched OFF
When the unit is switched off, the burner turns off and after the "pump OFF delay" time set in the installer parameter
P2 "DEL", the circulation pump is deactivated.
In erven ion of he minimum ime, exceeded TD
As a result of the presence of a minimum ignition time for the burner " b1" or "b2", the calculated supply water
Td ≤ TD
Td ≥ TD ΔTD
2
Firs Flame OFF
Firs Flame ON
TD Td °C
ΔTD
2
TD - ΔTD
2
58,5 60°C
ΔTD
2
Example ΔTD = 3°C se in he ins aller parame er "burner hys eresis"
TD = Supply empera ure calcula ed by he uni , for example 60°C.
(3°:2) = 1,5°C 60°C - 1,5 = 58,5°C firs flame ON
ΔTD
2
1,5°C
Second Flame ON
Firs Flame OFF
(TD - ΔTD)
(60°C - 3°C = 57°C) TD
(calcula ed
supply T.)
Td °C
( empera ure measured
by he supply probe)
57°C ΔTD
2
TD - ΔTD
2
1,5°C
ΔTD
2
Firs Flame ON
(60°C - 1,5°C = 58,5°C)
60°C

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temperature "TD" or the compensated supply water temperature "TDC" maybe exceeded.
Therefore, the values of " b1" or "b2", " o1" or "o2", TD, and TDM must be set in a manner that is appropriate to
the characteristics of the system.
If you want to avoid exceeding the TD, you must set the value of b1 to the minimum. This, however, is not
recommended because it may cause the burners to get blocked; the minimum settable value must be verified
considering the characteristics of the burner.
An i-condensa ion func ion of burner
The easiest and least expensive way to prevent the formation of condensation in the boiler is t control the
temperature detected by the return water temperature "Tr".
This function will be activated if the probe "Tr" has been connected to the unit and if the value of the anti
condensation temperature, set in the dedicated installer parameter in P2 "TAC", will be different from OFF.
If the probe "Tr" has not been connected, the icon "Tr" and the circuit of the recircula ion pump will not appear in
the hydraulic diagram on the display.
On the contrary, if the probe has been connected, but the value of "TAC" has been set to OFF, the icon "Tr" and the
circuit of the recircula ion pump will flash.
To prevent the formation of condensation in the boiler, the temperature controlled by the probe "Tr", must always
remain above 55°C.
If a reasonable value is set for the minimum temperature of the supply water "TDL", the anti condensation function is
carried out indirectly by the normal adjustment and conservation of that parameter.
In a climate control system, the activation of the anti condensation function may occur in two different situations:
1) Upon start up or after being off during the night.
2) During normal operation after changes in the thermal load.
In both cases, the behaviour is the same.
Ac iva ion char as a func ion of ime
CIRCULATION
PUMP
ON
OFF
BURNER
STAGE 2
ON
OFF
BURNER
STAGE 1
ON
OFF
Td (°C)
TD
ΔTD
Time
ΔTD
2
ΔTD
2
TD
TD ΔTD

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ANTICONDENSATE FUNCTION
The anticondensate function, if enabled, allows to maintain, for the entire time that the system is managed, the return
water temperature in the boiler at the desired value, in order to avoid condensation.
With the use of the temperature probe, "Tr", the conservation of the return water temperature at the value set for the
anti condensation temperature "TAC" (installer parameter P4) is guaranteed, with no significant deviations.
Maintaining the minimum temperature of the return water at a constant value does not affect the operating time of the
system.
Avoiding the condensation of the fumes inside the boilers is needed to prevent the rapid deterioration of the boilers
themselves due to the fact that the condensation of the fumes is very acidic la (the water binds with the sulphur and
forms sulphuric acid) and can easily attack the boiler body, until it is unusable.
The only boilers immune from these dangers are those that use condensation for energy optimization.
Normal boilers, not designed to exploit the latent heat of vaporization, need to be protected with devices that are able
to prevent the return water temperature from dropping below 55÷60°C. In fact, if the return water temperature is
below 55°C the fumes condense in the boiler.
The "Anticondensate Pump" has the aim to send part of the warm supply water directly to the return circuit, so as to
increase the return water temperature more quickly.
A good adjustment depends on the exact dimensioning of the anticondensate pump and of the system itself, as well
as the use of a boiler with suitable characteristics and with all its thermal data correctly set.
Sys em wi h 3-poin servo mo or:
If Tr ≤ TAC: The servo motor will be closed with a pulse equal to Imax, so that the flow is conveyed
towards the return.
Activation of the anticondensate pump.
If Tr ≥ (TAC + HYS): The servo motor can be opened/closed, as in climate adjustment
Deactivation of the anticondensate pump.
Sys em wi h a single or wo-s age burner:
If Tr ≤ TAC: Activation of the burner.
Activation of the anticondensate pump.
If Tr ≥ (TAC + HYS): The burner will be controlled as in climate control.
Deactivation of the anticondensate pump.
ANTI-FREEZE FUNCTION
The anti freeze function, if enables, allows to maintain the supply water temperature at the desired value, to prevent
the freezing of the piping.
With the use of the temperature probe, "Td", the conservation of the supply water temperature at the value set for the
anti freeze temperature "TAF" (installer parameter P2) is guaranteed, with no significant deviations.
The activation of the function is signalled by the anti freeze icon "n" appearing on the display.
Sys em wi h 3-poin servo mo or:
If Td ≤ TAF: The servo motor will be opened with a pulse equal to Imax.
If OFF, the circulation pump will be activated.
If Td ≥ (TAf + HYS): The servo motor will be controlled as in climate control associated to the logic of active
operation.
The circulation pump will be controlled as in climate control associated to the logic of active
operation.
Sys em wi h a single or wo-s age burner:
If Td ≤ TAF: Activation of the first stage of the burner.
If OFF, the circulation pump will be activated..
If Td ≥ (TAf + HYS): The burner will be controlled as in climate control associated to the logic of active
operation.
The circulation pump will be controlled as in climate control associated to the logic of active
operation.