Centrometal PelTec 12 Owner's manual

PelTec 12-48
PelTec-lambda 12-48
TECHNICAL INSTRUCTIONS
for installation, use and maintenance
of hot water boiler
and installation of additional equipment
THE FIRST START-UP MUST BE DONE BY AUTHORIZED PERSON
OTHERWISE PRODUCT WARRANTY IS NOT VALID
HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Hrvatska, tel: [phone], fax: [phone]

2Technical instructions PelTec-lambda
Technical data
TECHNICAL INFORMATION
Dimensions of the boiler to enter the room
Width (G)
Depth (H)
Height (I)
650
765
1565
880
765
1275
880
735
1345
965
795
1345
965
795
1495
** possible way of installing the fan (output is directed up) *** possible way of installing the fan (output is directed sideways)
HG
I
G
I
G
I
12 kW 18 kW 24 kW 48 kW36 kW
12 kW 24-48 kW18 kW 12-48 kW
Tip
(A)
(B)
(C)
(kW)
(kW)
(mbar)
(lit.)
(°C)
(°C)
(kg/s)
(kg/s)
(h)
(°C)
(°C)
(°C)
(W)
(mbar)
(%)
(mm)
(lit.)
(mm)
(lit.)
(lit.)
(lit.)
(W)
(W)
(V~)
(Hz)
(mm)
(mm)
(mm)
(kg)
(bar)
(bar)
(°C)
(mm)
(mm)
(mm)
(mm)
(R)
(R)
12
3,6-12
5
0,05
78
120
100
0,0131
0,0005
-
-
65-90
5
0,942
465x300x300
41,85
9,9 / -
1050
1105
1200
1560
328
130
1515 / 1235
135
555
1"
1/2"
18
5,4-18
5
0,05
76
120
100
0,0164
0,0029
-
-
65-90
9
1,59
650x300x300
58,5
6,5 / 9,9
1050
1105
1420
1560
349
130
1040 / 765
125
510
1"
1/2"
24
7,2-24
5
0,05
100
120
100
0,0197
0,0052
-
-
65-90
> 0°C
13
C1, wood pellets
maximum 12 %
Ø6 x 50
1.59
650x300x300
58.5
underpressure
340
9,9 / 9.9
by EN 303-5, point 4.2.5
1050
220
50
1080
1400
1560
402
2.5
5
90
130
1140 / 855
130
495
5/4"
1/2"
with fan
under non-condensing conditions
36
10,8-36
5
0,05
108
120
100
0,031
0,0092
-
-
65-90
10
2,56
620x385x385
91,90
11,6 / 17,7
1100
1160
1485
1560
455
150
1160 / 855
120
555
5/4"
1/2"
48
14,4-48
5
0,05
135
120
100
0,041
0,0131
-
-
65-90
14
2,56
770x385x385
114,13
13 / 19,6
1100
1175
1485
1560
478
150
1310 / 995
115
555
5/4"
1/2"
PelTec /
PelTec-lambda
12
PeTec /
PelTec-lambda
18
PelTec /
PelTec-lambda
24
PelTec /
PelTec-lambda
36
PelTec /
PelTec-lambda
48
Nominal heat output
Heat output range
Boiler class
Required chimney underpressure
Water amount in boiler
Exhaust gas temperature at nominal heat output
Exhaust gas temperature at minimal heat output
Exhaust mass flow at nominal heat output
Exhaust mass flow at minimal heat output
Combustion period
Min. inlet water tem. at the boiler supply water connection
Setting range for temperature controller
Minimal return temp.at boiler return tapping
Standby heat losses
Boiler resistance on water side at nominal output
Fuel type
Fuel moisture content
Fuel size
Firebox volume
Combustion chamber dimensions
Combustion chamber volume
Combustion chamber type
Pellet tank volume
Volume of ash boxes (left / right)
Required minimum accumulation next to boiler
Auxiliray power requirements at QN
Auxiliray power requirements at Qmin
Supply voltage
Frequency
Total mass - (boiler with tank and feeder screw)
Max. operating overpressure
Test pressure
Max. operating temperature
Flue gas tube - external diameter
Dimension D**/D***
Dimension E
Dimension F
Heating appliance running
Heating appliance running
Boiler body
dimensions
Lenght
Width
Height
Boiler
connections
Flow and return pipe (male thread)
Charge/discharge (female thread)

3
Dimensions and basic parts of the boiler
PLV - Boiler flow
PVV - Boiler return
PP - Charge / Discharge
DP - Flue gas tube
VE - Fan (fan output can be mounted in any directions)
SP - Pellet tank
PT - Pellet feeder
RP - Pellet level sensor
SG* - Safety ventilation group (not included in delivery)
PG - Pump group
PE - Connection for expansion vessel
FC - Flexible PVC tube
* not included in delivery
** possible way of installing the fan (output is directed up) *** possible way of installing the fan (output is directed sideways)
A
B
C
B
12kW
B
C
RE RE
C
RE
Front view Side view
12-48kW
Back view
PVV
PP
PelTec /
Peltec-lambda
12
SG *
PT
RP
FC
PVV
PE
PLV
PG
SP
VE DP
E
F
D***
D**
PT
SP
RP
SG *
E
F
D***
D**
FC PE PP
DP
VE
PG
PLV
SG *
RP
PT
SP
FC PE PP
DP
VE
F
D***
D**
E
PVV
PLV
PG
SG *
PT
SP
RP
FC PE PP
F
D***
D**
E
PVV
PLV
PG
PelTec /
Peltec-lambda
18
PelTec /
Peltec-lambda
24-36
PelTec /
Peltec-lambda
48
18kW 24-48kW
Technical instructions PelTec / PelTec-lambda

Basic parts and sensors
4Technical instructions PelTec / PelTec-lambda
1 - Boiler sensor ( 5k)NTC
2 - sensor ( 5k)1
DHW NTC
3 - Presostat
4 - Photocell
5 - Electric heater
6 - Flue gas sensor (Pt 1000)
7 - Fan speed sensor
8 - tube bimetal sensorPVC
9 - Pellet level in the tank
1
10 - Flow sensor ( 5k)NTC
11 - Return sensor ( 5k)NTC
12 - Lambda probe
ADDITIONAL EQUIPMENT
Depending on the configuration can be used as: DHW sensor, flow temperature sensor,
accumulation tank sensor (CAS), hydraulic crossover (CRO)
Only PelTec-lambda
*
**
11
4
3
5
12
PelTec-lambda 18-48 kW
12
PelTec-lambda 12 kW
24-48 kW
9
76
810
11
18-48kW
9
8
10
6
7
11
11
1
2
4
3
5
4
3
5
12 kW 18 kW
*
*
*
**
**
12 kW
*
**
CAL - alarm
box
(speaker/
LED)
CM2K modul
for regulation
2 heating
circuits
CMNET modul
for boiler
cascade
GSM Alarm
modul
for mobile
network
Pelet
suction
system
Cm wifi-box
(Internet
supervision)
Increasing
volume
of pellet tank
(+77kg, h=300mm)

1.0. INTRODUCTION
The PelTec / PelTec-lambda has a modern construction and design and is made out of the controlled
materials of high quality, welded with most modern technology and is approved and tested under EN
303 - 5 norm and fulfil all special request for the connection on the installation of a central heating
system.
1.1. BOILER DESCRIPTION
All local regulations, including those referring to national and European standards need to be
complied with when installing the appliance.
The boiler must not be modified unless using the tested original accessories we provide or if the
work is undertaken by our Customer Service.
Only fit original spare parts. These can be obtained from your customer service partner or directly
from ourselves. European standards need to be complied with when installing the appliance.
Regular care and cleaning of the appliance, flue gas outlets, connecting piece and flue.
CAUTION:
The flue may block if the boiler is heated again after a long period of it not being used. Before
starting the boiler, have the flue checked by a specialist (chimney sweep).
Ensure sufficient supply of fresh air in the installation room when heating. The air must be replaced
at least 0.8 times an hour through constant and reliable room venting. Fresh air may have to be
provided from outside if the windows and doors in the room where the boiler is installed are well
sealed or if this room contains other equipment, such as extractor hoods, clothes dryer, fan etc.
1.2. SAFETY PRECAUTIONS
1.3. IMPORTANT INFORMATIONS
This symbol indicates measures for protection against
accidents and warning for the user and / or exposed
persons.
Steel hot water boiler are engineered for wood pellet firing. In the boiler is installed the burner for wood
pellet firing with the automatic firing and automatic self-cleaning function which enables the reliable
operation also with the low quality wood pellets. The function of the automatic cleaning flue gas tubes
provides the unifying exchange of the heat and high and unifying level of boiler efficiency. Digital boiler
controller in a basic construction offers also the possibility of control with the additional equipment likes
lambda probe or level control of the wood pellets in the pellet tank. The pellet tank is the integral part of
the boiler. The boiler is delivered in pieces due to the easier transport into the boiler room.
The boiler and related accessories are state of the art and meet all applicable safety regulations.
The control unit, wiring chamber, el. heater, safety cut-out STB thermostat, fan, grid cleaning
mechanism, flue gas tubes cleaning mechanism and pellet supply mechanism are integrated into the
PelTec / PelTec-lambda . They are operate at a voltage of 230 V AC. Improper installation or repair can
pose the danger of life-threatening electric shock. Installation may beperformed only by appropriately
qualified technicians.
Caution symbols:
Please take careful note of the following symbols in this Operating Manual.
Introduction, boiler description, safety precautions, important informations
5
Technical instructions PelTec / PelTec-lambda

1.4. STATUS OF DELIVERY
Equipment is delivered seperately:
1. Boiler with planking and thermal insulation
2. Pellet tank in a cardboard box (the parts need to be mounted, see instructions for mounting
the pellet tank)
3. Feeder screw with a flexible PVC tube (should be placed in the pellet tank)
4. Grating cleaning mechanism (requires installation on the boiler)
5. Fan (requires installation on the boiler)
6. Pump group (Tubes with 4-way mixing valve with actuator and circulation pump (need to be mounted
on boiler, Mandatory set the 3-speed pump on the speed 3.)
Status of delivery
6Technical instructions PelTec / PelTec-lambda
Figure 1. Status of delivery
12kW
Pellet tank
Boiler
Feeder screw
18-48 kW
Boiler
Fan
Grate cleaning
mechanism
Feeder screw
Pellet tank
PelTec /
PelTec-lambda
12
Pump group
PelTec /
PelTec-lambda
18-36
PelTec /
PelTec-lambda
48

Mounting parts
1.5. MOUNTING COMPONENTS
Fan
- mount on the back of boiler, is obligatory to use the flange gaskets fan, fastened using M8 bolts and
nuts. Plug-connector for power supply fan and the fan tachometer in the back of the control box. Fan
output can be mounted in any directions.
Fan
(Fan output can be mounted in
any directions)
Flange for mounting
on the boiler
Flange for mounting fan
Mechanism for grating cleaning
- mount on the right side of the boiler (in this side is pellet tank), must be fastened using M8 bolts
and nuts. After assembly, it is necessary to attach the lever burner grid with gear motor trail.
Plug-in two cables with connectors (motor and microswitches).
For ease of handling, transport and import of boiler, PelTec / PelTec-lambda is delivered in parts that
need be mounted on the boiler when the boiler is in the boiler room. These parts need to be installed on
the boiler:
Flange for
mounting
mechanism
for self-cleaning
Flange for mounting on the boiler
7
Technical instructions PelTec / PelTec-lambda

Positions of mounted components
Seal
Socket for temp.sensor
Socket
PelTec /
PelTec-lambda
12
Pump group
PelTec /
PelTec-lambda
18-36
PelTec /
PelTec-lambda
48
Example of installation pump group to the boiler PelTec/PelTec-lambda 18-36
Socket
1
1
1
23
4
5
6
23
4
5
6
2
4
3
5
6
7**Only PelTec / PelTec-lambda 48
1 - Boiler pump P1
2 - Angled T-piece -return flow
3 - 3-way mixing valve
4 - Motor actuator
5 - Connecting pipe
6 - T-piece -flow
7 - Lower pipe
*
LEGEND:
Pump group
- mount pump group with 4-way mixing valve to the boiler so that the T-piece is in the upper side. On
the upper connector of the T-piece incorporate safety ventilation group. On the back of boiler were
prepared two holenders for mounting connection tubes (connection tubes with 4- way mixing valve).
Be sure to use the seal for holenders. Set return temperature sensor in the socket for the sensor
between the 4-way mixing valve and the boiler. It is obligatory using the included thermal paste.
Plug-in return flow sensor on the back of the box control. Connect the pump cable with connector to
the back of the control box. Mandatory set the 3-speed pump on the speed 3.
NOTE: check the tightness of connection tubes. Fasten connections binding tubes if necessary, so
that a good seal.
8Technical instructions PelTec / PelTec-lambda

Pellet level in the tank sensor
- mount this sensor on the back side inside of the pellet tank. First set the plastic glass distance for
sensor. After that, put the sensor on this glass. Attach the sensor and the plastic distance with 4 screws
supplied. Attach protective cover. Plug-in the cable with connector of the pellet level sensor on the back
of the box control.
Protection cover
Pellet level sensor
Plastic pad
Mounted position (be
sure to attach the cable
with cable ties
Pellet tank
- mount pellet tank according installation manual for mounting pellet tank. Set up pellet transporter in
the pellet tank. Place the pellet tank to the boiler and set PVC tube to conveyor and tube
supply on the boiler. Set up the PVC tube so as to allow the smooth falling pellet into the burner. If
necessary, cut the PVC tube to the required length. Plug-in the power connector on the back of the
control box.
Positions of mounted components
9
Technical instructions PelTec / PelTec-lambda

1.5.1 MOUNTING MECHANISM FOR GRATE CLEANING
1. Remove the two screws (A), from cover (B) of the grate cleaning mechanism and remove cover
carefully .
A
BB
2. Remove the two screws (C) and just slightly loosen screws (D) as shown in picture below .
Carefully attach grate cleaning mechanism to loose screws (D), then fasten with screws (C) and
tighten the screws (D).
C
D
C
D
Grate cleaning
10 Technical instructions PelTec / PelTec-lambda

D
E
E
D
F
F
cca 1-2mm
G
A
3. Set the screw (E) into the jagged track (F), set the nut on the screw and tighten. Free space
(G) is required for the proper functioning of the mechanism.
4. Connect the connectors (H) so they have a good contact. Carefully set the cover and tighten with
the screws (A).
H
Grate cleaning
11
Technical instructions PelTec / PelTec-lambda

Setting photocell on the work position
Before first startup, be sure to set the photocell to the position as on
Figure 3, otherwise the boiler will not work properly!
Figure 2. Photocell position on delivery
57mm
The photocell should not be set too deep or too shallow in the box. So, limiter determines
the proper depth of photocell position. Make sure the limiter is set to black mark. Black
mark should be barely visible (see image below).
Limiter
Screw
Mark
The limiter must be set so that the black
mark is barely visible like is shown below
(partially covered by hose clamps)
Figure 3. Carefully put the photocell
until the plastic holder
Figure 4. Photocell ready to work
1.5.3 SETTING PHOTOCELL TO THE WORK POSITION
12 Technical instructions PelTec / PelTec-lambda

1.6. SAFETY ELEMENTS
1.7. FUEL
Safety elements, fuel
Boiler have a few safety elements:
- Bimetal thermostat built on the burner pellet feeding tube. If the bimetal set temperature (80°C)
is exceeded, pellet feeding is stopped, the burner shuts down and the error E3 appears on the
control unit (LED diode switches on).
- If there is no flame (the built in photo-cell does not detect the flame within set time), control
stops the burner operation and error E2 is displayed or it goes to blowing off and error E6 is
- Displayed (LED diode switched on).Control unit has a built in protective function which protects the
boiler against overheating. If temperature in the boiler exceeds 93°C, regardless heating or
sanitary water is needed the boiler pump and/or the sanitary water turns on and works until
temperature in the boiler falls below 93°C.
- The fan has a built-in RPM counter and, if regulation is informed that the fan does not operate in
accordance with the requirement interrupts the process display fan error
- Drive for grate linear move have in-built two switches by wich control unit monitor position of grate.
If grate at given moment is not on provided place, control unit recieve information that grate is not
on provided place and interrupt proces and display information about grate error.
- Flue gas connection have in-built sensor for flue gas temperature meassuring. If flue gas tube
temperature is over 250°C, control unit interrupt proces and display information about too high flue
gas temperature.
When temperature in the boiler exceeds 110°C (+0°C / - 9°C), power supply is turned off by the
safety thermostat (via control unit).
Thermal protection built in coils of the fan electric motor at the burner and the screw feeder motor,
protects them against overheating caused by failure or locking.
A flexible tube connecting the pellet burner and pellet tank is made of plastic material reinforced with
metal wire which, in case of back flame from the burner to the tank, melts and prevents flame to
penetrate to the pellet tank.
Only wood pellets are used as fuel in PelTec / PelTec-lambda. Wooden pellets are bio-fuel made of
wooden wastes. Pellets can be packed in different packaging: in bags (15 kg or 1000 kg), or as bulk in
3
large (underground) tanks ( 4 - 15 m ) or in basement spaces. Recommended properties of pellets for
firing in PelTec / PelTec-lambda boilers are the following:
- heating value >= 5 kWh/kg (18 MJ/kg)
-diameter <= 6 mm
-max. moisture content <= 12 %
-max. dust content <= 1,5 %.
13
Technical instructions PelTec / PelTec-lambda

2.0. BOILER POSITIONING AND ASSEMBLY
2.1. MINIMUM DISTANCE FROM THE ROOM WALLS
Figure 5. Minimum distance from the room walls for PelTec / PelTec-lambda
1
Boiler PelTec / PelTec-lambda
Chimney
Flue (Chimney connection; must be insulated)
-
-
2
A = 6,02 x Q
Each boiler room must be equipped with an opening for supply of fresh air which is dimensioned in
accordance with boiler output (minimum opening area according to the below shown equation). Such
opening must be protected with a net or grate. All installation works have to be performed in accordance
with valid national and European standards. Boiler must not operate in flammable and explosive
environment.
2.2. OPENING FOR FRESH AIR (FRESH AIR SUPPLY)
3
-
Boiler positioning, assembly and building in must be performed by a qualified person. We recommend that
boiler is placed on a concrete base with height of 50 to 100 mm above the floor. Boiler room must be frost-
proof and well ventilated. Boiler has to be positioned so that it can be properly connected to the chimney (see
Figure 2) and simultaneously, enabling tending of boiler and additional equipment, control during operation,
cleaning and maintenance.
WARNING!
Flammable items must not be placed on the boiler and within the minimum distances shown in
Figure 1.
Q - boiler output in kW
2
A - opening area in cm
1
-
-
2
3
-
min. 550 mm
min. 1000 mm
min. 450 mm
2
3
1
min. 300 mm max 1500 mm
Boiler positioning
14 Technical instructions PelTec / PelTec-lambda

Figure 6. Dimensioning of the chimney for PelTec / PelTec-lambda
3.0. CONNECTION TO THE CHIMNEY
10
15
20
25
30
35
40
45
50
5 10 15
Wood pellets
15
16
18
20
6 7 8 9
The chimney must be resistant against flue condensate!
IProperly dimensioned and built chimney is the main condition for safe and economical
functioning of the boiler. The thermal insulation of the chimney has to be done properly, it has
to be absolutely gas-proof and smooth. On its lower part there has to be built in the opening for
cleaning with the door. An brick-layed chimney has to have three layers with an insulation of 30 mm
in the middle, if the chimney is built inside the house (i.e. inside the heated area), or an insulation of
50 mm if it is built outside the house (i.e. outside the heated area). The flue gas temperature has to
be at least 30°C higher then the temprerature of their consdensation point. The choice and the
construction of the chimney has to be performed by the authorized person. Inside dimensions of the
chimney intersection selected in accordance with diagram for chimney selection, they depend of its
height and of the capacity of the boiler.
Chimney must be dimenensioned by "diagram for chimney selection" and maximum permetted
lenght of connection flue gas tube between connection on fan and chimney is 2000 mm and
minimum light diameter xx0 mm with maximum two 90° bends. Connection flue gas tube can be
mounted horizontally or at any angle which allows to gas, on his way to chimney, a constant
increase of height with condidering of exit point from fan. Connection flue gas tube must have
openings for cleaning through which is possible to clean entire lenght of flue gas tube or must
ensure easy removal part of flue gas tube which allow complete cleaning of connection flue gas
tube. To prevent entry of condensate form chimney into the boiler, flue gas tube must be mounted 10
mm deeper into the chimney. Connection flue gas tube between fan and chimney must be insulated
with 30-50 mm mineral wool.
Connection to the chimney
Useful height of the chimney (m)
Rated thermal output of the boiler (kW)
Chimney light diameter (cm)
Chimney dimensioning example:
for boiler PelTec / PelTec-lambda 36
Boiler heat output: 36 kW
Fuel: wood pellets
Required usable chimney height: 7 m
Required chimney light
diameter: 18 cm
15
Technical instructions PelTec / PelTec-lambda

In open system it is necessary to put an open expansion vessel min. 0,5 m above the height of the
highest heating body. If expansion vessel is located in a room without heating, it should be insulated.
The system pump could be connected on the inline or back line of the boiler.
4.1.1. CONNECTION TO OPEN HEATING SYSTEM
4.1. CONNECTION TO CENTRAL HEATING SYSTEM
All installation work must be made in accordance with valid national and European standards.
Boiler PelTec / PelTec-lambda can be built in closed and open central heating systems. In both cases
boiler can be fired with wood pellets. Installation has to be made, in according to technical standards, by
a professional who will be responsible for proper boiler operation. Before connecting boiler to central
heating system, the system has to be flushed to remove impurities remaining after system installation. It
prevents boiler overheating, noise within the system, disturbances at a pump and mixing valve. Boiler
should always be connected to central heating system by connectors, never by welding. Figure 1.
shows safe distances required for boiler cleaning and maintenance.
4.0. INSTALLATION
All local regulations, including those referring to national and European standards need to be complied
with when installing the appliance.
Installation, connection to central heating system
4.1.2. CONNECTION TO CLOSED HEATING SYSTEM
In closed heating system it is obligatory to build in certified safety valve with opening pressure of 2,5 bar
and a membrane expansion vessel. Safety valve and expansion vessel must be built in accordance with
professional rules and between safety valve and expansion vessel and boiler must not be any valve.
Schemes for possible configurations are on following pages.
Figure 7. Connections to connect the boiler to a closed heating system
PelTec /
PelTec-lambda
12
PelTec /
PelTec-lambda
18-36
PelTec /
PelTec-lambda
48
1
24
3
1 - Safety ventilation group connection
2 - Expansion vessel connection
1
3
4
2
23
4
1
3 - Main flow to installation
4 - Return flow from installation
16 Technical instructions PelTec / PelTec-lambda

36
bar
2
4
5
1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - Flow temperature sensor
7 - Heating circuit
8 - Room thermostat
P1
1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - DHW tank
7 - DHW sensor
3
M
bar
2
4
5
HV
P1
6
1
1
M
P2
7
7
8
Required sensors: - return flow temp. sensor
- DHW sensor
Required sensors: - return flow temp. sensor
- flow temperature sensor
Configuration DHW, DHC
Scheme 1. Configuration DHW
Scheme 2. Configuration DHC
17
Technical instructions PelTec / PelTec-lambda

1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - Flow sensor
7 - DHW tank
8 - DHW tank sensor
9 - Heating circuit
10 - 3-way diverter valve
11 - Room thermostat
3
M
6
bar
2
4
5
HV
P2
P1
7
1
9
P
1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Back flow sensor
6 - Accumulation tank CAS
7 - Accumulation tank sensor CAS 1 (upper)
8 - Accumulation tank sensor CAS (lower)
3
bar
2
4
5P1
6
7
8
1
M
P3
10
8
11
Required sensors: - return flow temp. sensor
- flow temperature sensor
- DHW sensor
Required sensors: - return flow temp. sensor
- accumulation tank sensor (upper)
- accumulation tank sensor (lower)
Configuration DHC || DHW, BUF
Scheme 3. Configuration DHC || DHW
Scheme 4. Configuration BUF
NOTES:
- In this configuration is possible to upgrade up to 4 unit "CM2K-P module for regulation 2 heating circuits“.
- In this configuration is possible to connect external control (external start)
18 Technical instructions PelTec / PelTec-lambda

1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - DHV tank
7 - DHW tank sensor
8 - Accumulation tank CAS
9 - Accumulation tank sensor CAS 1 (upper)
10 - Accumulation tank sensor CAS 2 (lower)
11 - 3-way diverter valve
3
M
bar
2
4
5
HV
P1
1
P
P3
11
7
8
9
10
6
1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - Accumulation tank CAS
7 - Accumulation tank sensor CAS 1 (upper)
8 - Accumulation tank sensor CAS 2 (lower)
9 - 3-way manual mixing valve
10 - Room thermostat
bar
2
4
5P1
9
10
6
7
8
1
3
M
P2
Required sensors: - return flow temp. sensor
- DHW tank sensor
- accumulation tank sensor (upper)
- accumulation tank sensor (lower)
Required sensors: - return flow temp. sensor
- accumulation tank sensor (upper)
- accumulation tank sensor (lower)
Configuration DHW || BUF, BUF -- IHC
Scheme 5. Configuration DHW || BUF
Scheme 6. Configuration BUF -- IHC
NOTE:
In this configuration is possible to upgrade up to 4 unit "CM2K-P module for regulation 2 heating circuits“.
19
NOTES:
- In this configuration is possible to upgrade up to 4 unit "CM2K-P module for regulation 2 heating circuits“.
- In this configuration is possible to connect external control (external start)
Technical instructions PelTec / PelTec-lambda

1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - DHV tank
7 - DHV tank sensor
8 - Accumulation tank CAS
9 - Accumulation tank sensor CAS 1 (upper)
10 - Accumulation tank sensor CAS 2 (lower)
11 - Heating circuit
12 - 3-way diverter valve
13 - 3-way manual mixing valve
14 - Room thermostat
3
M
bar
2
4
5
HV
P1
1
P
P3
12
7
8
9
10
6
11
13
1 - Boiler PelTec / PelTec-lambda
2 - Air self-venting group 2,5 bar
3 - Motor 4-ways mixing valve
4 - Closed type expansion vessel
5 - Return flow sensor
6 - Accumulation tank CAS
7 - Accumulation tank sensor CAS 1 (upper)
8 - Accumulation tank sensor CAS 2 (lower)
9 - DHV tank
10 - DHV tank sensor
bar
2
4
5P1
6
7
8
1
3
M
P2
HV
9
P3
10
14
Required sensors: - return flow temp. sensor
- DHW tank sensor
- accumulation tank sensor (upper)
- accumulation tank sensor (lower)
Required sensors: - return flow temp. sensor
- DHW tank sensor
- accumulation tank sensor (upper)
- accumulation tank sensor (lower)
Configuration DHW || BUF -- IHC, BUF -- DHW
Scheme 7. Configuration DHW || BUF -- IHC
Scheme 8. Configuration BUF -- DHW
NOTE:
In this configuration is possible to upgrade up to 4 unit "CM2K-P module for regulation 2 heating circuits“.
20 Technical instructions PelTec / PelTec-lambda
NOTES:
- In this configuration is possible to upgrade up to 4 unit "CM2K-P module for regulation 2 heating circuits“.
- In this configuration is possible to connect external control (external start)