STOKVIS ENERGY SYSTEMS R601 Instruction manual

Stokvis R600 LMS Boiler
Gas-Fired
Floor Standing
Condensing
Installation, Operation & Maintenance
Manual
STOKVIS ENERGY SYSTEMS
96R Walton Road
East Molesey
Surrey
KT8 0DL
Tel: [phone]
Fax: [phone]
E-Mail: [email protected]
Website: www.stokvisboilers.com
420010567300 12/2013

2

Contents
3
Contents .................................................................. 3
Safety General regulations................................... 4
Application................................................. 4
Norms and regulations.............................. 4
Construction Layout of boiler.......................................... 5
Operating principle.................................... 5
Technical data .................................................................. 6
Extent of delivery Standard boiler.......................................... 8
Accessories............................................... 8
Installation Boiler transport.......................................... 9
Removing the casing................................. 10
Boiler installation....................................... 11
Connecting the boiler ................................ 12
Wiring diagram - Boiler.............................. 14
Wiring diagram - Accessories.................... 16
Commissioning Water and hydraulic system...................... 18
Gas supply ................................................ 19
Condensate connection............................. 19
Flue and air intake connections................. 19
Prepare boiler for first startup.................... 20
Combustion analysis................................. 20
Check water flow ...................................... 22
Check functionality of safety devices ........ 23
Gas tightness check.................................. 23
Boiler shut down........................................ 23
Commissioning protocol............................ 24
Operating instructions Controls .................................................... 25
Display / Programming.............................. 26
Overview of main functions ....................... 27
Maintenance Checklist.................................................... 28
Replacing the electrodes........................... 28
Cleaning the condensate receptacle......... 29
Cleaning and refilling the syphon .............. 29
Inspection of combustion chamber............ 29
Water pressure and quality ....................... 30
Water flow rate.......................................... 30
Combustion analysis................................. 30
Gas pressure............................................. 30
Gas tightness check.................................. 30
Safety devices........................................... 30
Maintenance protocol................................ 31
Lockouts .................................................................. 32
Sensor values .................................................................. 35
Declaration of Conformity .................................................................. 36

Safety
General regulations
Application
Norms and regulations
4
General regulations
This documentation contains important
information, which is a base for safe
and reliable installation, commissioning
and operation of the R600 boiler. All
activities described in this document
may only be excecuted by authorized
companies.
Changes to this document may be ef-
fected without prior notice. We accept
no obligation to adapt previously deliv-
ered products to incorporate such
changes.
Only original spare parts may be used
when replacing components on the
boiler, otherwise warranty will be void.
Application
The R600 boiler may be used for heat-
ing and hot water production purposes
only. The boiler should be connected to
closed systems with a maximum tem-
perature of 100ºC (high limit tempera-
ture), maximum setpoint temperature is
90ºC.
Norms and regulations
When installing and operating the boil-
er, all applicable norms (european and
local) should be fulfilled:
Local building regulations for in-
stalling combustion air and flue gas
systems;
Regulation for connecting the boiler to
the electrical appliance;
Regulations for connecting the boiler
to the local gas network;
Norms and regulations according to
safety equipment for heating systems;
Any additional local laws/regulations
with regard to installing and operating
heating systems.
The R600 boiler is CE approved and
applies to the following European
standards:
 92 / 42 / EEC
Boiler efficiency directive
 2009 / 142 / EEC
Gas appliance directive
 2006 / 95 / EEC
Low voltage directive
 2004 / 108 / EEC
EMC directive
EN 656
Gas-fired central heating boilers –
Type B boilers of nominal heat input
exceeding 70 kW but not exceeding
300 kW
EN 15420
Gas-fired central heating boilers -
Type C boilers of nominal heat input
exceeding 70 kW, but not exceeding
1000 kW
EN 15417
Gas-fired central heating boilers -
Specific requirements for condensing
boilers with a nominal heat input
greater than 70 kW but not exceeding
1000 kW
EN 13836
Gas fired central heating boilers -
Type B boilers of nominal heat input
exceeding 300 kW, but not exceeding
1000 kW
EN 15502-1
Gas-fired central heating boilers -
Part 1: General requirements and
tests
EN 55014-1 (2000)
Electromagnetic compatibility - Re-
quirements for household appliances,
electric tools and similar apparatus -
Part 1: Emission
EN 55014-2 (1997)
Electromagnetic compatibility - Re-
quirements for household appliances,
electric tools and similar apparatus -
Part 2: Immunity - Product family
standard
EN 61000-3-2 (2000)
Electromagnetic compatibility (EMC) -
Part 3-2: Limits - Limits for harmonic
current emissions (equipment input
current 16 A per phase)
EN 61000-3-3 (2001)
Electromagnetic compatibility (EMC) -
Part 3-3: Limitation of voltage chang-
es, voltage fluctuations and flicker in
public low-voltage supply
systems, for equipment with rated
current 16 A per phase and not sub-
ject to conditional connection
EN 60335-1 (2002)
Household and similar electrical appli-
ances - Safety - Part 1: General re-
quirements
EN 60335-2-102 (2006)
Household an similar electrical
appliances: Particular requirements
for gas, oil and solid-fuel burning ap-
pliances having electrical connections

Construction
Layout of boiler
Operating principle
5
Layout of boiler
The R600 boiler consists of the follow-
ing main components:
1 Casing
2 Front panel
3 Adjustable feet
4 Control panel (below cover)
5 Flue gas connection
6 Air intake connection
(under casing)
7 Gas connection
8 Flow water connection
9 Return water connection
10 2nd (hot) return water connection
(for split system use), accessory
11 Filling/draining valve
12 Electrical input connections
13 Frame
14 Burner/1st heat exchanger
assembly
15 2nd/3rd heat exchanger assembly
16 Water headers
17 Condensate receptacle
18 Whirlwind gas/air mixing system
19 Fan
20 Gas valve
21 Gas pressure switch
22 Sight glass
23 Ignition and ionisation electrodes
24 Syphon
25 Removable flue gas adapter
Operating principle
The R600 is a fully modulating boiler.
The control unit of the boiler adapts the
modulation ratio automatically to the
heat demand requested by the system.
This is done by controlling the speed of
the fan. As a result, the Whirlwind mix-
ing system will adapt the gas ratio to
the chosen fan speed, in order to main-
tain the best possible combustion fig-
ures and therewith the best efficiency.
The flue gases created by the combus-
tion are transported downwards
through the boiler and leave at the back
side into the chimney connection.
The LMS14 control unit can control the
boiler operation based on:
Boiler control (stand alone operation);
weather compensated operation
(with optional outdoor sensor);
with 0-10V external influence
(temperature or capacity) from a buil-
ding management system.
The return water from the system en-
ters the boiler in the lower section,
where is the lowest flue gas tempera-
ture in the boiler. In this section con-
densation takes place. The water is
being transported upwards through the
boiler, in order to leave the boiler at the
top (burner) section. The cross flow
working principle (water up, flue gas
down) ensures the most efficient com-
bustion results.
1 5 4 2 7 6
3 8 12 9 10
14 22 23 18, 19, 20, 21 25
13 24 15 16 17 11

Technical data
6
R601 R602 R603 R604 R605 R606 R607
Nominal heat output at 80/60ºC max/min* kW 142.1/24.0 190.1/40.6 237.2/40.6 285.2/40.6 384.5/79.6 480.6/79.6 545.1/79.6
Nominal heat output at 75/60ºC max/min* kW 142.2/24.0 190.3/40.6 237.4/40.6 285.5/40.6 384.9/79.7 481.1/79.7 545.6/79.7
Nominal heat output at 40/30ºC max/min* kW 150.4/25.5 201.2/43.1 251.0/43.1 301.8/43.1 402.4/83.6 502.9/83.6 570.4/83.6
Nominal heat input Hi max/min* kW 145.0/24.5 194.0/41.5 242.0/41.5 291.0/41.5 388.0/80.5 485.0/80.5 550.0/80.5
Efficiency at 80/60ºC % 98.0 98.0 98.0 98.0 99.1 99.1 99.1
Efficiency at 40/30ºC % 103.7
Annual efficiency (NNG 75/60ºC) % 106.8
Annual efficiency (NNG 40/30ºC) % 110.4
Standstill losses (Twater = 70ºC) % 0.21 0.18 0.17 0.16 0.15 0.14 0.13
Max. condensate flow l/h 11 15 19 22 30 37 42
Gas consumption G20 max/min (10,9 kWh/m3)m3/h 13.3/2.3 17.8/3.8 22.2/3.8 26.7/3.8 35.6/7.4 44.5/7.4 50.5/7.4
Gas consumption G25 max/min (8,34 kWh/m3)m3/h 17.4/2.9 23.2/5.0 29.0/5.0 34.9/5.0 46.5/9.7 58.2/9.7 66.0/9.7
Gas consumption G31 max/min (12,8 kWh/kg) kg/h 11.3/1.9 15.2/3.2 18.9/3.2 22.7/3.2 30.3/6.3 37.9/6.3 43.0/6.3
Gas pressure G20 mbar 20
Gas pressure G25 mbar 25
Gas pressure G31 mbar 30/50
Maximum gas pressure mbar 50
Flue gas temperature at 80/60ºC max/min ºC 78/61
Flue gas temperature at 40/30ºC max/min ºC 56/30
Flue gas quantity max/min* m3/h 238/40 318/69 397/69 477/69 636/134 795/134 901/134
CO2level natural gas G20/G25 max/min % 10.2/9.4
CO2level G31 max/min % 11.9/10.0
NOx level max/min mg/kWh 35/15
CO level max/min mg/kWh 14/8
Max. permissible flue resistance max/min Pa 160/10 160/10 200/10 200/10 200/10 250/10 250/10
Water volume l 27 31 35 61 68 75 82
Water pressure max/min bar 8/1
Max. water temperature (High limit thermostat) ºC 100
Maximum temperature setpoint ºC 90
Nominal water flow at dT=20K m3/h 6.1 8.1 10.2 12.2 16.3 20.4 23.1
Hydraulic resistance at nominal water flow kPa 10 18 28 15 27 42 55
Electrical connection V 230/400
Frequency Hz 50
Mains connection fuse A 16
IP class - IP20
Power consumption boiler max/min (excl. pump) W 158/43 200/35 230/35 260/35 470/61 650/61 770/61
Power consumption speed controlled pump (opt) W 190/9 190/9 310/12 310/12 470/25 590/25 800/38
Power consumption bypass pump (optional) W 190/9 190/9 190/9 190/9 190/9 310/12 310/12
Weight (empty) kg 295 345 400 465 535 590 650
Noise level at 1 meter distance dB(A) 59
Ionisation current minimum µA 6
PH value condensate - 3.2
CE certification code - CE-0063BS3840
Water connections - R2" DN65 PN16
Gas connection - R3/4" R1" R1" R1" R1.1/2" R1.1/2" R1.1/2"
Flue gas connection mm 150 150 200 200 250 250 250
Air intake connection (for room sealed use) mm 130 150 150 150 200 200 200
Condensate connection mm 40 40 40 40 40 40 40
* min load on gasses G20, G25, G31. For type R602-R607 on gasses G25 (LL)-Gas min value is 15% higher.

Technical data
7
Dimension R601 R602 R603 R604 R605 R606 R607
L mm 1105 1260 1470 1220 1435 1585 1735
L2 mm 127.5 127.5 137.5 137.5 187.5 187.5 187.5
H mm 1480 1480 1500 1500 1500 1500 1500
H2 mm 1120 1130 1130 1150 1245 1245 1245
B mm 670 670 670 770 770 770 770
B2 mm 225 235 235 235 215 215 215
B3 mm 260 260 260 310 310 310 310
B4 mm 260 260 260 490 490 490 490
B5 mm 130 130 130 245 245 245 245
D1 mm (Diam.) 130 150 150 150 200 200 200
D2 mm (Diam.) 150 150 200 200 250 250 250
W1 R" / DN R2" R2" R2" DN65 PN16
W2 R" / DN R2" R2" R2" DN65 PN16
G R R 3/4" R 1" R 1" R 1" R 1 1/2"
1 Electrical connections
2 Gas supply
3 Water supply
4 Water return (Cold)
5 Air Intake (under casing)
6 Water 2nd return (optional)
7 Boiler water drain valve 1/2"
8 Flue gas Outlet
9 Condensate drain
flexible hose 25mm diam.

Extent of delivery
Standard boiler
Accessories
8
Standard boiler
A boiler delivery package contains the
following components:
The above accessories are specially
designed for the R600 boiler and there-
with easy to install (plug and play). By
choosing a combination of the kits men-
tioned above, you can create your own
complete system solution. Ask your
supplier for more detailed information.
Extension module AVS75 for heating
zone control or external gas valve
and/or room fan control.
For each boiler a maximum of 3
AVS75 modules (2x heating zone, 1x
ext. gas valve / room fan) can be inte-
grated in the boiler;
Additional RVS63 heating zone con-
troller, when controlling more than 2
zones (incl. wall hung box, all neces-
sary sensors and sockets and con-
nection material for bus communica-
tion).
Component Pcs. Package
Boiler fully assembled and tested 1 Mounted on wooden blocks with wooden border,
sealed in PE foil
Adjustable feet 4 Mounted on frame of the boiler
Syphon for condensate connection 1 Cardboard box on top of heatexchanger
(under casing)
Conversion kit for natural gas L and propane incl. instruction 1 Cardboard box on top of heatexchanger
(under casing)
Operation and Installation manual 1 Map attached to back panel of the boiler
Spare parts list 1 Map attached to back panel of the boiler
Wiring diagram 1 Map attached to back panel of the boiler
Accessories
Additional to the boiler, the following
accessories can be ordered:
Standard 3-step pump incl. connec-
tion kit;
Speed controlled pump incl. connec-
tion kit;
Safety valve, manometer and de-
aerator (3,4,5 or 6 bar) incl. connec-
tion kit;
2x max. water pressure switch and 1
external high limit thermostat incl.
connection kit;
Gas filter incl. connection kit;
Max. gas pressure switch;
External high limit thermostat incl.
connection kit;
Gas valve leakage tester (not possi-
ble for R601);
2nd Return connection for
Split System use;
Controlled bypass (incl. pump) incl.
connection kit;
Plate heat exchanger (dT=10K/15K or
dT=20K) incl. connection kit;
Low velocity header, suitable for
dT=10K/15K and dT=20K incl. con-
nection kit;
Duo header for connecting 2 boilers
in cascade (excl. connection kit);

Installation
Boiler transport
9
Boiler transport
The R600 boiler will be supplied as a
complete unit being fully assembled
and pre-tested. The maximum width is
670mm for models R601-R603 and
770mm for models R604-R607, which
makes it possible to transport all mo-
dels through a normal door in one pie-
ce. The boiler can be transported with a
pallet truck, entering either from the
front or from the side.
Whenever necessary, the boiler can be
dismantled into smaller parts for easier
transport inside the building. The table
below shows the main dismantled parts
with their weight and dimensions.
When the boiler has to be transported
with a crane, it is necessary to remove
the casing before connecting the boiler
to the crane. Always connect the crane
to the frame of the boiler by using
straps.
Component R601 R602 R603 R604 R605 R606 R607
Burner/1st heat exchanger assembly Weight [kg]
Length [mm]
Width [mm]
Height [mm]
86
735
400
321
100
885
400
321
112
1035
400
321
135
735
680
321
158
885
680
321
181
1035
680
321
198
1185
680
321
2nd/3rd heat exchanger assembly Weight [kg]
Length [mm]
Width [mm]
Height [mm]
90
735
400
244
103
885
400
244
116
1035
400
244
150
735
680
244
170
885
680
244
198
1035
680
244
219
1185
680
244
Condensate receptacle
Weight [kg] Length [mm]
Width [mm]
Height [mm]
7
589
385
225
9
739
385
225
10
889
385
225
11
589
665
225
12
739
665
225
13
889
665
225
15
1039
665
225
Frame
Weight [kg] Length [mm]
Width [mm]
Height [mm]
15
990
624
335
16
1140
624
335
17
1350
624
335
17
1100
724
335
18
1320
724
335
19
1470
724
335
21
1620
724
335
Front U-frame with electronic board Weight [kg]
Length [mm]
Width [mm]
Height [mm]
11
628
1304
202
11
628
1304
202
11
628
1304
202
12
728
1304
202
12
728
1304
202
12
728
1304
202
12
728
1304
202
1 Hoisting belt (4x)
2 Wooden retaining beam (2x)
3 Hoisting belt position (4x)
1
2
3

Installation
Removing the casing
10
Boiler transport
Remove the casing before transporting
the boiler, in order to avoid damage to
the casing parts during transportation.
Removing the casing is done as fol-
lows:
1.
4.
5.
6.
2.
3.

Installation
Boiler installation
Boiler installation
The boiler should be positioned in a
frost-proof boiler room. If the boiler
room is on the roof, the boiler itself may
never be the highest point of the instal-
lation.
When positioning the boiler, please
note the recommended minimum clea-
rance in the picture. When the boiler is
positioned with less free space, mainte-
nance activities will be more difficult.
Once the boiler is in the correct posi-
tion, the wooden blocks (1) should be
removed and the adjustable feet (2)
(with vibration absorption dampers)
should be adjusted to the right height.
Water and gas connections should be
done after mounting the feet, as they
affect the exact height of all connecti-
ons.
11
1 2 2

Installation
Connecting the boiler
12
Connecting the boiler
This chapter will explain how to make
all connections to the boiler with regard
to:
Hydraulic connections
Condensate drain connection
Gas connection
Flue gas connection
Air intake connection
(under casing)
Electrical connection
The boiler should always be connected
in such a way, that the system applies
to all relevant standards and regulati-
ons (European, national and local). It’s
the responsibility of the installer to en-
sure that all standards and regulations
are respected.
Hydraulic connections
The boiler should always be connected
in such a way, that water flow through
the boiler can be ensured at all times.
Connect the flow (4) and return (5) con-
nection of the system tension free to
the boiler connections.
The (optional) 2nd return kit allows the
boiler to be used in a system with two
return circuits. The common return
becomes the low temperature return,
the 2nd return connection (6) is the
high temperature return.
The (optional) accessory kit with
safety valve, manometer and deaerator
should be mounted on the flow
connection (4) of the boiler, before
connecting to the system.
The (optional) pump kit should be
mounted directly to the return
connection (5) of the boiler, before
connecting to the system.
Condensate connection (8)
After filling with water, the syphon
(included in delivery) should be in-
stalled to the connection at the bottom
of the condensate receptacle. Lead the
hose under the frame at the back of the
boiler and connect it to the draining
system in the boiler room. The connec-
tion to the draining system should al-
ways be done with an open connection,
in order to avoid a flooding of the boiler
in case of a blocked drain.
1 3
4 5 6
8

Installation
Connecting the boiler
13
Gas connection (1)
The gas connection must be made by
an authorized installer in accordance
with the applicable national and local
standards and regulations.
Connect the gas line from the system
tension free to the gas connection (1) of
the boiler. A gas cock should be
mounted directly behind the boiler.
A gas filter can be mounted directly on
the gas connection of the boiler.
Flue gas connection (7)
Regulations for the construction of flue
gas systems are very different for each
country. It should be ensured that all
national regulations with regard to flue
gas systems are respected.
Connect the flue gas system to the flue
gas connection (7) of the boiler, use
fluegas systems with seamless connec-
tions only. It’s not necessary to make a
separate condensate drain for the flue
gas system, as the condensate will be
drained via the syphon of the boiler.
Please note the following issues:
It’s recommended to use stainless
steel or PPS fluegas systems
The diameter of the flue gas system
must be chosen by calculation ac-
cording to the national regulations
Construct the flue gas system as
short as possible (for maximum
length see planner documentation)
Construct horizonal ways with a mini-
mum angle of 3º
Air intake connection (3)
The air intake can be connected in ca-
se of room sealed installation. The co-
ver (3) must be disassembled in order
to connect the air intake piping to the
connector inside the boiler. The diame-
ter should be calculated according to
the national regulations, together with
the flue gas system. The total resistan-
ce of both systems should never over-
come the maximum permissible resis-
tance of the fan inside the boiler (see
also chapter: Technical data).
Electrical connection
The electrical connection must be ma-
de by an authorized installer in
accordance with the applicable national
and local standards and regulations.
For the power supply it’s necessary to
use a mains isolator switch with a con-
tact opening of at least 3 mm
within the boiler room. This switch can
be used to switch off the power supply
for maintenance purposes.
All cables should be lead through the
cable glant (2) from the back of the
boiler boiler into the electro panel
(11).
Connect all wires to the terminals
according to the wiring diagram of the
boiler (enclosed in map attached to
back panel of the boiler).
11
1 7 3
2

14
Installation
Wiring diagram - Boiler
Main gas valve
Pressure switch Room fan (2A max.) Mod. feedback 0-10V DC LPB Bus Enable Ext. Setpoint 0-10V DC Outside temp. sensor DHW Thermostat or DHW temp. sensor
Min. gas pressure switch Common flow temp. sensor
Return
temp. sensor Flow temp. sensor
Heating circuit 2 Heating circuit 1

Installation
Wiring diagram - Boiler
15
Flue gas
temp. sensor
DHW Pump 230V~ (1A max.)
Boiler pump / Bypass pump
Lockout
input

Installation
Wiring diagram - Accessories
16
Flow temp. sensor
Mixing valve control
(0.5A max.)
Heating circuit pump
(2A max.)
Flow temp. sensor
Mixing valve control
(0.5A max.)
Heating circuit pump
(2A max.)
Alarm Heating circuit 2 Heating circuit 1

Installation
Wiring diagram - Accessories
17
Gas valve
Leakage test
STL
Boiler temp. Max. water
pressure switch Max. gas
pressure switch
*Remove jumper when connecting device
Max. water
pressure switch

Commissioning
Water and hydraulic system
Water quality
The system should be filled with water
with a PH value between 8,0 and 9,5.
The chloride value of the water should
not exceed 50 mg/l. Entry of oxygene
by diffusion should be prevented at all
times. Damage to the heat exchanger
because of oxygene diffusion will not
be taken under warranty.
Minimum operating
pressure
[bar]
Flow tem-
perature
[ºC]
> 1.5 90
> 1.0 80
Water pressure
Open the valves to the system. Check
the water pressure in the system. If the
water pressure is too low (see table
below), increase the pressure up to at
least the minimum required water
pressure in the table.
Filling can be done via the fill and drain
valve (2) on the return connection (1) of
the boiler.
Hydraulic system
Check if the boiler is hydraulically con-
nected to the system in such way, that
water flow can be secured at all times
during burner operation. The water flow
is supervised by dT-measurement
across the flow and return connections
of the boiler. A lack of water flow will
lead to a reduction of power and even-
tually a lockout of the boiler.
Commissioning of the boiler should be
carried out by authorized personnel
only. Failure to respect this condition
makes the guarantee void. A protocol
of the commissioning should be filled
out (see end of this chapter for example
of commissioning protocol).
This chapter explains the commissio-
ning of the boiler with the standard boi-
ler controller. When an additional sys-
tem controller is installed, please refer
to its manual for commissioning the
controller.
In installations with higher water volu-
mes, it’s necessary to respect the maxi-
mum filling and additional volumes with
corresponding hardness values as sta-
ted in the german VDI2035 standard. In
the table you can find the nominal va-
lues for filling and additional water for
the R600 according to the the VDI2035.
The table at the left gives an indication
of the relation between the water quali-
ty and the maximum water filling volu-
me during the lifetime of the boiler.
Consult the original text of the VDI2035
for more detailed information.
18
Boiler output Max. sum of alkaline earths
[kW] [mol/m3] [ºdH] [ºf]
50 - 200 2.0 11.2 20
200 - 600 1.5 8.4 15
Max. total hardness
Concentrate
Ca(HCO3)2Capacity of installation Q (kW)
150 200 250 300 400 500 600
mol/m3ºf Maximum water (re)fill volume Vmax [m3]
0.5 5 - - - - - - -
1.0 10 - - - - - - -
1.5 15 3 4 5 6 8 10 12
2.0 20 3 4 5 6 6.3 7.8 9.4
2.5 25 1.9 2.5 3.1 3.8 5.0 6.3 7.5
3.0 30 1.6 2.1 2.6 3.1 4.2 5.2 6.3
ºdH
2.8
5.6
8.4
11.2
14.0
16.8
1
2

Commissioning
Gas supply
Condensate connection
Flue and air intake connections
19
Gas supply
Check the gas supply connection to the
boiler for tightness. If any leakage is
found, reseal the leakage before star-
ting the boiler!
Remove any air between the gas valve
and the gas line. This can be done at
the test point (1) at the gas pressure
switch. Don’t forget to close the test
point afterwards!
Check the gas type and values with the
local gas company, in order to know for
which gas type the boiler should be
commissioned.
Consult the conversion kit instruction if
the boiler is to be installed with natural
gas L or LPG.
Condensate connection
Remove the syphon (2) from the con-
densate connection. Fill it with water
and place it back in the original posi-
tion. Make sure the syphon is filled
before starting the boiler, in
order to prevent flue gases dischar-
ging through the condensate connec-
tion!
Flue and air intake connections
Check whether the flue and air intake
systems are made according to the
national and local regulations. Installati-
ons which don’t comply with the regula-
tions, are not allowed to be commissio-
ned.
Make sure that all connections are free.
The size of flue gas and air intake con-
nections may not be reduced.
1
2

Commissioning
Prepare boiler for first startup
20
A
M
H
B C D E F
I
L
G
A
Legend:
A On/off switch
B Return (ESC)
C Room temperature control
D Confirmation (OK)
E Manual mode
F Chimney sweeper mode
G Info mode
H Reset button
I Operation mode heating zone(s)
L Display
M Operation mode DHW
Preparation for first startup
Open the gas supply;
Enable the power supply to the boiler;
Switch on the boiler with the on/off
switch (A);
Make sure the boiler is in standby
mode (K);
Check the pump operation: make
sure the pump runs in the right
direction;
Release all air from the pump motor.
It‘s recommended to put the boiler on
50% load after the first startup, as this
is the best starting point to do a proper
combustion analysis. This can be done
with the following procedure:
Push button I >3 Sek, the boiler goes
into controller Stopp mode.
Push the Info button (G), the actual
boiler load (%) appears in the display;
Choose „set up“ (confirm with OK
button), now the boiler load can be
changed by rotating the wheel (C)
and confirming the 50% setting with
the OK button.
After checking the combustion values
(see next page), the controller Stopp
mode can be stopped by pushing the
control mode button (I) >3 Sek.