STOKVIS ENERGY SYSTEMS R600 Series User manual

Stokvis R600 LMS Boiler
Gas-Fired
Floor Standing
Condensing
Options & Systems
Planner Manual
STOKVIS ENERGY SYSTEMS
96R Walton Road
East Molesey
Surrey
KT8 0DL
Tel: [phone]
Fax: [phone]
E-Mail: [email protected]
Website: www.stokvisboilers.com
DOC2075 Art.Nr. 12 100 459 07/2010

Contents
2
Gas condensing boiler R600 Models and output.................................................................................................4
Application possibilities..........................................................................................4
Value propositions.................................................................................................4
Technical description Description ............................................................................................................4
Technical data.......................................................................................................5
Dimensions............................................................................................................6
Declaration of conformity ......................................................................................7
Extent of delivery ..................................................................................................8
Boiler transport......................................................................................................8
Boiler installation...................................................................................................8
Norms and regulations Regulations ...........................................................................................................9
Maintenance........................................................................................................10
Fuel ..................................................................................................................... 10
Combustion air....................................................................................................10
Water quality .......................................................................................................10
Noise protection ..................................................................................................11
Antifreeze............................................................................................................11
Flue gas system Requirements and regulations.............................................................................12
Materials..............................................................................................................12
Flue gas data.......................................................................................................12
Dimensioning.......................................................................................................13
Neutralisation General................................................................................................................14
Neutralisation systems........................................................................................14
Hydraulic connection Hydraulic resistance............................................................................................15
∆T-measurement.................................................................................................15
∆p-measurement.................................................................................................15
Hydraulic connection into a system ....................................................................16
Standard..............................................................................................................16
Bypass.................................................................................................................16
Split System ........................................................................................................17
Controls Basic controls and connections...........................................................................18
Control by building managemant system.............................................................18
Boiler enable signal.............................................................................................18
Temperature or capacity setpoint........................................................................18
Capacity feedback signal.....................................................................................19
OK/Alarm output signal .......................................................................................19
Heating zone control ...........................................................................................20
Cascade control ..................................................................................................20

Contents
3
Accessories System selection.................................................................................................21
Plug & Play kits
Kit A: 2x max. Water pressure switch + 1x external high limit thermostat ...........22
Kit B: max. gas pressure switch ..........................................................................22
Kit C: external high limit thermostat.....................................................................22
Kit D: gas valve leakage tester............................................................................22
Kit E: bypass .......................................................................................................22
Kit F: wiring for room fan and external gas valve.................................................22
Kit G: plate heat exchanger + connection kit.......................................................23
Kit H: low loss header + connection kit................................................................23
Kit I: QAA75.........................................................................................................24
Kit K: Extension AVS75.......................................................................................24
Kit L: pump 3-step...............................................................................................24
Kit M: speed controlled pump..............................................................................25
Kit N/O/P/Q: safety valve (3-4-5-6 bar) TÜV + manometer + de-aerator.............27
Kit R: gasfilter......................................................................................................27
Set T: Extension LOGON B with wall hung box...................................................27
Set U: Cascade kit MASTER............................................................................... 27
Set V: Cascade kit SLAVE ..................................................................................27
Connection possibilities
Low loss header .................................................................................................28
Plate heat exchanger .........................................................................................29
Installation examples 2-A-C: 1 heating zone + low loss header ............................................................30
2-5-A-C: 1 heating zone and sanitary hot water + low loss header ....................31
4-A-C: 2 heating zones + low loss header ..........................................................32
4-5-A-C: 2 heating zones and sanitary hot water + low loss header ...................33
A-C: Boiler control via 0-10VDC + low loss header ............................................ 34
2-B-C: 1 heating zone + plate heat exchanger ...................................................35
2-5-B-C: 2 heating zones and sanitary hot water + plate heat exchanger ..........36
4-B-C: 2 heating zones + plate heat exchanger ..................................................37
4-5-B-C: 2 heating zones and sanitary hot water + plate heat exchanger ..........38
B-C: Boiler control via 0-10VDC + plate heat exchanger ....................................39
4-5-A-C-E: 2 heating zones and sanitary hot water
+ cascade via low loss header ............................................................................40
Extension 2 heating zones .................................................................................41
Norms ............................................................................................................................42

Gas condensing boiler R600
Models and output
Application possibilities
Value propositions
Technical description
4
Models and output
The floor standing gas condensing boi-
ler R600 is available in 7 types within
an output range from 142 until 539 kW.
Application possibilities
The gas condensing boiler R600 is
applicable for alle central heating sys-
tems built according to EN12828. In
cascade applications (max. 8 boilers
with LMS14 master/slave cascade
control) the R600 can cover installati-
ons up to 4300kW.
Preferred applications are central hea-
ting and sanitary hot water production
in multi-family buildings, municipal and
industrial buildings.
Value propositions
Unique reliability
proven technology with exceptional
high quality
Highest system flexibility
easy planning and Plug & Play instal-
lation with pre-assembled system kits
Easy maintenance
boiler design optimised for easy ac-
cess on servicing
Unequalled lifetime high efficiency
corrosion resistant stainless steel
heat exchanger
Environmental friendly
lowest emission values
Description
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 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.
4
1
2
3
5
1 Water cooled premix burner
2 Water cooled stainless steel heat exchanger (3 levels)
3 Speed controlled Whirlwind gas/air mixing system
4 LMS14 boiler management unit
5 Space for neutralisation-equipment

Technical discription
Technical data
5
R601 R602 R603 R604 R605 R606 R607
Nominal heat output at 80-60ºC max/min* kW 142.1/23.3 190.1/39.5 237.2/39.5 285.2/39.5 380.2/76.6 475.3/76.6 539.0/76.6
Nominal heat output at 75-60ºC max/min* kW 142.2/23.5 190.3/39.5 237.4/39.5 285.5/39.5 380.6/76.6 475.8/76.6 539.6/76.6
Nominal heat output at 40/30ºC max/min* kW 150.7/26.7 201.6/45.2 251.4/45.1 302.3/45.2 403.1/87.7 503.9/87.7 571.5/87.7
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
Efficiency at 40/30ºC % 103.9
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 H-gas 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 L-gas 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 LL-gas max/min (8,34 kWh/m3)m3/h 17.4/2.9 23.2/5.8 29.0/5.8 34.9/5.8 46.5/11.2 58.2/11.2 66.0/11.2
Gas consumption LPG. 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 H-gas mbar 20
Gas pressure L/LL-gas mbar 25
Gas pressure LPG mbar 30/50
Maximum gas pressure mbar 100
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 H/E/L/LL max/min % 10.2/9.4
CO2level liguid gas P 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 3-step pump (optional) W 170/90 190/120 380/210 380/210 530/300 720/380 1150/600
Power consumption speed controlled pump (opt) W 180/10 180/10 435/25 435/25 450/25 800/35 800/35
Power consumption bypass pump (optional) W 55/35 85/65 170/90 170/90 190/120 460/225 470/280
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 H/L/LPG. For type R602-R607 on gasses LL-Gas min value is 15% higher.

Technical description
Dimensions
6
Dimensions 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 (Hot)
7 Boiler water drain valve 1/2"
8 Flue gas Outlet
9 Condensate drain
flexible hose 25mm diam.

Technical description
Declaration of conformity
7
Declaration of Conformity
Rendamax BV, Hamstraat 76, 6465 AG Kerkrade (NL),
Declares that the product
R600
Is in conformity with the following standards:
EN 298
EN 656
EN 15420
EN 55014-1 / -2
EN 61000-3-2 /-3
EN 60 335-1/ -2
And in accordance with the guidelines of directives:
92 / 42 / EEC (boiler efficiency directive)
2009 / 142 / EEC (gas appliance directive)
73 / 23 / EEC (low voltage directive)
2004 / 108 / EEC (EMC directive)
This product is designated with CE number:
CE – 0063BS3840
Kerkrade, 22-04-2010
ing. G.A.A. Jacobs
Managing Director

Technical description
Extent of delivery
Boiler transport
Boiler installation
8
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.
The (inter)national and local norms for
the installation of heating systems
should be respected at all times.
Standard boiler
A boiler delivery package contains the following components:
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
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
Boiler transport
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.

Norms and regulations
9
Additional national standards
Germany:
RAL - UZ 61 / DIN 4702-8
Switzerland:
SVGW
Netherlands:
NOx staatsblad 344 (1994)
GASKEUR BASIS
GASKEUR SV
GASKEUR HR107
Belgium:
HR TOP
The R600 boiler is CE approved and
applies to the following European
standards:
 92 / 42 / EEC
Boiler efficiency directive
 90 / 396 / EEC
Gas appliance directive
 73 / 23 / EEC
Low voltage directive
 89 / 336 / 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
Electromagnetic compatibility - Re-
quirements for household appliances,
electric tools and similar apparatus -
Part 1: Emission
EN 55014-2
Electromagnetic compatibility - Re-
quirements for household appliances,
electric tools and similar apparatus -
Part 2: Immunity - Product family
standard
EN 61000-3-2
Electromagnetic compatibility (EMC) -
Part 3-2: Limits - Limits for harmonic
current emissions (equipment input
current 16 A per phase)
EN 61000-3-3
Electromagnetic compatibility (EMC) -
Part 3-3: Limitation of voltage
changes, 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
Household and similar electrical appli-
ances - Safety - Part 1: General re-
quirements
EN 50165
Household and similar electrical appli-
ances - Safety - Part 2-102: Par-
ticular requirements for gas, oil and
solid-fuel burning appliances having
electrical connections
Norms and regulations
When installing and operating the
boiler, all applicable norms (european
and local) should be fulfilled:
Local building regulations for install-
ing combustion air and flue gas sys-
tems;
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.
An overview of the most important nati-
onal norms can be found in the chapter
„Norms“.

Norms and regulations
Maintenance
Fuel
Combustion air
Water quality
10
Maintenance
Regular maintenance is necessary to
secure a safe and economical operati-
on of the installation. For the R600, one
annual maintenance visit is recommen-
ded. During this visit, the proper functi-
oning of the complete heating system
should be checked as well.
Water quality
The lifetime of the complete heating
system is affected by the water quality.
Additional costs for water treatment of
an installation are always lower than
repairing costs for damage created by
poor water quality.
Fuel
The gas condensing boiler R600 is
applicable for natural gases H, L and
LL, and for LPG. Factory settings are
always done for H-gas. For other types
of natural gas, a correction can be ma-
de on the gas valve. For LPG, it’s ne-
cessary to change the gas injector
(included in delivery) before operating
the boiler.
The R600 can work with gas pressures
up to 100 mbar. In case of a gas pres-
sure above 100 mbar, a pressure regu-
lator should be fitted in the gas line.
The gas consumption and gas pressu-
res of the different gases can be found
in the chapter „Technical data“.
Combustion air
The gas condensing boiler R600 can
be used in both non-roomsealed and
roomsealed applications. The com-
bustion air to the boiler shouldn’t con-
tain high concentrations of dust and/or
halogen, as they can damage the heat
exchanger surface. Especially in buil-
dings, where chemicals are used, the
combustion air facility should prevent
these chemicals to enter the boiler.
The different room sealed connection
possibilities the R600 is approved for,
can be found in the chapter „Flue gas
system“.
The following water quality levels must
be respected at all times for warranty
claiming. Damage to the boiler due to
poor water quality will not be taken un-
der warranty.
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.
Boiler output
[kW] Max. sum of alkaline earths [mol/m3] Max. total hardness [dºH]
50 - 200 2.0 11.2
200 - 600 1.5 8.4
Concentrate
Ca(HCO3)2Capacity of installation Q (kW)
150 200 250 300 400 500 600
mol/m3dºH Maximum water (re)fill volume Vmax [m3]
≤0.5 ≤2.8 - - - - - - -
1.0 5.6 - - - - - - -
1.5 8.4 3 4 5 6 8 10 12
2.0 11.2 3 4 5 6 6.3 7.8 9.4
2.5 14.0 1.9 2.5 3.1 3.8 5.0 6.3 7.5
≥3.0 ≥16.8 1.6 2.1 2.6 3.1 4.2 5.2 6.3
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.
Constant entry of oxygene in the instal-
lation should be avoided. The system
water pressure should be higher than
the atmospheric pressure in all parts of
the installation. Underfloor heating
components without oxygen diffusion
barrier should never be used. When
they’re used anyway, a system separa-
tion (f.e. with plate heat exchanger) is
compulsory.

Norms and regulations
Noise protection
Antifreeze
11
Noise protection
The gas condensing boiler R600 is
equipped with a patented premix bur-
ner. The noise level of this very quiet
premix burner is extremely low in com-
parison to conventional gas burners.
Therefore no further measures have to
be taken for noise protection in the boi-
ler room.
Antifreeze
The R600 can be used with the an-
tifreeze type Shell Antifreeze Con-
centrate. The concentration of the an-
tifreeze in the system affects the maxi-
mum capacity the boiler can work on.
The relation between antifreeze con-
centration and capacity reduction of the
boiler can be found in the graph.
The R600 is supplied with adjustable
feet, which also prevent the transmissi-
on of vibration noise from the boiler into
the building.
Noise created by system components
(f.e. pumps) should be taken care of
with external measures, in case of hig-
her noise level requirements.
0
10
20
30
40
50
10 15 20 25 30 35 40 45 50 55
Antifreeze [%]
Capacity reduction [%]

Flue gas system
Requirements and regulations
Materials
Flue gas data
12
Boiler
type Nominal heat output Nominal heat input Flue gas connection CO2
level Flue gas temperature Flue gas quantity Max. permissible flue resistance
kW kW mm % ºC kg/s Pa
max min max min max min max min max min max min
R601 142.1 23.3 145.0 24.5 150
10.2 9.4 78 30
0.070 0.013 160 10
R602 190.1 39.5 194.0 41.5 150 0.093 0.022 160 10
R603 237.2 39.5 242.0 41.5 200 0.116 0.022 200 10
R604 285.2 39.5 291.0 41.5 200 0.140 0.022 200 10
R605 380.2 76.6 388.0 80.5 250 0.186 0.043 200 10
R606 475.3 76.6 485.0 80.5 250 0.233 0.043 250 10
R607 539.0 76.6 550.0 80.5 250 0.264 0.043 250 10
Requirements and regulations
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. The most
important national norms can be found
in the chapter „Norms“.
Pay attention to the following recom-
mendations when dimensioning a flue
gas system:
Only approved flue gas material may
be used.
The flue gas system must be properly
calculated to ensure a safe functioning
of the system.
Flue gas system components should be
removable for maintenance purposes.
Horizontal flue gas ways must be
mounted under an angle of 3º mini-
mum.
A separate condensate drain for the
chimney is not necessary, as the con-
densate can enter the drain via the
syphon connection of the boiler.
The R600 is certified for the flue gas
systems B23 (and B23P for France)
and C33, C53 and C63.
Materials
Exclusively materials, which are heat
resistant and resistant to flue gases
and aggressive condensate, may be
used. Recommended materials are
plastic (PPS, category T120) or stain-
less steel. Aluminium (only thick wall!)
can also be used (in Germany only
after consulting the chimney sweeper).
The R600 has an integrated high limit
thermostat function for the flue gaes.
When the fluegas temperature exceeds
100ºC, the burner is switched off. With
this function, an additional (external)
safety device is not necessary.
Flue gas data

Flue gas system
Dimensioning
13
VERSION 1
Calculation base:
Total connection length in boiler room ≤1.5 m;
2x 87°-bend
Maximum permissible height (h) of flue gas
system in m
Boiler type Ø 110
[mm] Ø 130 [mm] Ø 150 [mm] Ø 200 [mm] Ø 250 [mm]
R601 10 35 50
R602 17 34 50
R603 26 50
R604 16 50
R605 50 50
R606 39 50
R607 29 50
VERSION 2
Calculation base:
Total connection length in boiler room ≤3 m;
4x 87°-bend
Maximum permissible height (h) of flue gas
system in m
Boiler type Ø 110
[mm] Ø 130 [mm] Ø 150 [mm] Ø 200 [mm] Ø 250 [mm]
R601 5 29 50
R602 11 27 50
R603 19 50
R604 9 50
R605 43 50
R606 31 50
R607 20 50
Dimensioning
When dimensioning a flue gas system,
it’s necessary to perform a calculation
check of the flue gas system in order to
verify if the choosen system is appli-
cable.
The following table shows two
examples of possible flue gas systems,
including the maximum possible height
of the system. These examples only
give an indication of the possible
heights, but they can not be used for
official flue gas layout calculation. Each
flue gas system must be calculated by
an authorized company.
The maximum negative flue gas pres-
sure, which doesn’t affect the burner
modulation ratio, is 30 Pa. Higher nega-
tive pressure will lead to limitation of
the burner modulation ratio.
The maximum horizontal flue gas way
is 20 m. With horizontal ways longer
than 20 m, a faultless burner start in
cold condition can not be guaranteed.

Neutralisation
General
Neutralisation systems
Standard neutralisation system (DN)
Neutralisation system with pump (HN)
14
General
Condensate, created by the R600,
should be drained into the public drai-
ning system. The condensate PH is
between 3.0 and 3.5. National and/or
local regulations have to be checked, in
order to find out whether the condensa-
te should be neutralised before entering
the public draining system.
Type DN2 DN3
Applicable for [kW] 450 1500
Length [mm] 420 640
Width [mm] 300 400
Height [mm] 240 240
Type HN1.5 HN2.5
Applicable for [kW] 280 540
Length [mm] 410 640
Width [mm] 300 400
Height [mm] 290 240
Power con-
sumption pump [W] 40 150
Pump head [m] 6 3
Neutralisation systems
The neutralisation systems can be pla-
ced in the bottom section of the boiler.
The delivery of the system contains the
following components:
Granulate for first filling
Connection hoses for inlet and outlet
connection
Boiler connection adapter
For the neutralisation two different sys-
tems are available:
Standard neutralisation system (DN)
The standard neutrlisation system is used, when the public draining connection is
at lower level than the boiler syphon connection.
Neutralisation system with pump (HN)
The neutralisation system with pump is used, when the public draining system is at higher level than the boiler syphon con-
nection and the condensate needs to be transported to a higher level before draining is possible. The built-in pump of the
neutralisation system takes care of the transport of the condensate.
The maximum amount of condensate
for each boiler type can be found in the
chapter „Technical data“.

Hydraulic connection
Hydraulic resistance
∆T-measurement
∆p-measurement
Water flow data
15
Hydraulic resistance
The hydraulic resistance depends on
the flow rate through the boiler and the
boiler type. In the graph the resistance
for a specific flow rate can be found.
The R600 is able to control a speed
controlled pump via a 0-10VDC signal.
It makes the flow rate modulate in pa-
rallel with the burner load. The mini-
mum flow rate, to which the pump is
allowed to modulate with the burner
load, is 30% of the nominal flow rate
through the boiler.
The flow rate through the boiler can
also be checked by calculation. This
can be done with a ∆T as well as a ∆p
measurement.
1.0
10.0
100.0
1.0 10.0 100.0
[m3/h]
[kPa]
R604-R607
R601-R603
∆T-measurement
Check the temperature difference over
the boiler (∆T flow-return) when the
boiler is running on 100% load. The
nominal ∆T is 20K and must be at least
between 15K and 25K for secure boiler
operation. An indication of the actual
flow rate can be found with the follow-
ing calculation (see table below for
nominal data):
∆p-measurement
Check the pressure difference over the
boiler (∆p flow-return) when the boiler
pump is running (burner on is not re-
quired). The nominal ∆p for each boiler
type can be found in the table below,
actual ∆p must be within:
0.35*Δpnom ≤∆p ≤1.75*∆pnom. An indi-
cation of the actual flow rate can be
found with the following calculation (see
table below for nominal data):
Water flow data
R601 R602 R603 R604 R605 R606 R607
Nominal flow rate m3/h 6,1 8,1 10,2 12,2 16,3 20,4 23,1
∆T at nominal flow rate K 20
∆p at nominal flow rate kPa 10 18 28 15 27 42 55
qactual = (∆Tnominal / ∆Tmeasured) * qnominal
qactual = √(∆pmeasured / ∆pnominal) * qnominal

Hydraulic connection
Hydraulic connection into a system
Standard
Bypass
16
Hydraulic connection into a system
The R600 must be connected in such a
way, that a minimum flow rate of 30%
of the nominal flow rate can be ensured
at all times, independent from the flow
rate in the secundary system. This can
be achieved by using one of the follo-
wing 3 possibilities:
Standard, with low loss header or
plate heat exchanger
Bypass, with integrated minimum flow
rate by Bypass pump*
Split System, with 2 return connecti-
ons for best possible efficiency (warm
and cold return)
* only applicable in single boiler instal-
lations
Standard
This is the most common way to con-
nect the boiler to the system. By using
a low loss header or plate heat exchan-
ger a minimum flow rate can be ensu-
red at all times, independent from the
flow rate in the secundary system. The
boiler pump is available as a standard 3
-step or a speed controlled version. The
speed controlled pump mudulates the
flow rate in the primary system in paral-
lel with the burner load. This ensures
the lowest possible return temperature
to the boiler for high efficiency usage.
Details of the available pump kits can
be found in the chapter „Accessories“.
Bypass
In single boiler installations, the R600
can also be used without low loss hea-
der or plate heat exchanger. For this
solution a bypass kit is available as
accessory to the standard boiler. The
bypass is connected between the flow
connection and the second return con-
nection of the boiler.
The performance of the bypass pump is
very low when the system flow rate is
high. As soon as the system flow rate
decreases, the bypass pump perfor-
mance increases to ensure a minimum
flow rate through the boiler.
The bypass pump does not transport
the water from the boiler into the
system. The system pump should
overcome the boiler resistance at
nominal flow rate to transport the
from the boiler into the system and
vice versa.
Details of the available pump kits can
be found in the chapter „Accessories“.
Bypass
Details to the 3 possibilities mentioned
above, can be found in the next secti-
ons.
Standard

Hydraulic connection
Split System
17
Split System
The split system boiler enables the
connection of two returns with different
water temperatures. By evasing the low
loss header the cold return water enters
the condensor of the boiler directly,
without mixing with the high temepra-
ture return water (f.e. from an air heater
circuit). This hydraulic separation in-
creases the efficiency of the system.
The primary boiler pump, controlled by
the boiler managemant unit, ensures a
minimum water flow through the boiler
except for the bottom heat exchanger
(condensor). The system pump of the
low temperature circuit must be dimen-
sioned in such a way, that it can over-
come the boiler resistance.
The nominal flow rate in the (warm)
boiler circuit must be minimum 50%
of the total nominal flow rate through
the boiler.
The following data can be used for the dimensioning of the pumps in a split system.
Min. and max. flow rate Q1-Q2
Q2,min Q
2,max (Q1+Q2)min (Q1+Q2)max
[m3/h] [m3/h] [m3/h] [m3/h]
R601
0
3.0 4.9 8.1
R602 4.0 6.5 10.8
R603 5.1 8.2 13.6
R604 6.1 9.8 16.3
R605 8.1 13.0 21.7
R606 10.2 16.3 27.2
R607 11.5 18.5 30.8
0.10
1.00
10.00
100.00
1.00 10.00 100.00
Q1+Q2 [m3/h]
R1 [kPa]
R601-R603 R604-R607
0.00
0.01
0.10
1.00
10.00
100.00
0.10 1.00 10.00 100.00
Q2 [m 3/h]
R2 [kPa]
R601-R603 R604-R607
R1
R2
Q1
Q2 P2
P1
Q1+Q2
Necessary head pump P2:RP2 = R2at Q2 + R1at (Q1+Q2) + RSystem
Necessary head pump P1:R1at (Q1+Q2)

Controls
Basic controls and connections
Control by building managemant system
Boiler enable signal
Temperature or capacity setpoint
18
Basic controls and connections
The standard version of the R600 is
equipped with a LMS14 boiler manage-
ment unit. This controller controls both
the burner safety operation and the
temperature regulation of the boiler.
The KM628-R600 includes the follo-
wing functions:
 Weather compensation (with optional
outdoor sensor)
 Connection possibility for external
gas valve and/or room fan. See chap-
ter "Accessories" for combinations
with an OK/Alarm contact
 Master/Slave cascade control (with
optional BUS communication modu-
les).
When additional control of secundary
heating zones or cascade systems are
required, the R600 can be extended
with different additional controls. Expla-
nation of these controls can be found in
the next sections.
Electronic high limit thermostat
Electronic flue gas temperature limiter
Primary boiler pump control (via re-
lay)
Primary sanitary hot water pump
control
(use of relay necessary when > 1A)
Interlock input
Lockout input
OK/Alarm output signal
Boiler enable signal
0-10VDC temperature or capacity
setpoint (programmable)
0-10VDC capacity feedback or 10V
contact for external gas valve
(programmable)
Temperature control central heating
via PID controller
Temperature control sanitary hot wa-
ter (hot water priority)
Control by building managemant
system
The R600 can be connected to a buil-
ding management system. This can be
done by using (one of) the following
connections:
0
20
40
60
80
100
0246810
[V]
[ºC]
Boiler enable signal, terminals 111-
112 (volt free)
The boiler enable signal is provided
with a jumper from the factory. When
connecting a (volt free!!!) external sig-
nal, the jumper must be removed.
Temperature or capacity setpoint,
terminals 117-118 (0-10VDC)
The R600 can be controlled via a tem-
perature or capacity setpoint.
The signal values are programmable,
from the factory the contact is program-
med for temperature setpoint with set-
tings as shown in the graphic.
When controlling the boiler via a ca-
pacity setpoint, it’s highly recommen-
ded to control the primary boiler pump
with the internal pump control of the
LMS14 boiler controller. The mini-
mum flow rate through the boiler must
be respected at all times. The nomi-
nal ∆T is 20K and should be at least
within 15K-25K at full load to secure a
safe boiler operation.

Controls
Capacity feedback signal
OK/Alarm output signal
19
0
20
40
60
80
100
120
0246810
[V]
[%]
OK/Alarm output signal, terminals
3-4-5 (230VAC) or extension module
AVS75 (contact QX21) when combi-
ned with external gas valve and/or
room fan or gas leakage tester.
The boiler provides, depending on ist
status and the setting of the relay
(factory setting = alarm) an OK or alarm
signal at terminal 4 (or QX21).
Capacity feedback signal, terminals
130-131 (0-10VDC)
This signal is available at the mentio-
ned terminals, when the burner is acti-
ve. The following graph shows the va-
lue of the signal.

Controls
Heating zone control
Cascade control
20
Heating zone control
The R600 can be extended with an
AVS75 controller for extended heating
zone control. The AVS75 enables
weather compensated operation of one
mixed heating zone.
For room temperature optimisation of
each heating zone, an additional roo-
munit QAA75 can be connected via bus
connection. The values for the specific
heating zone can then be displayed
and changed on the room unit.
In case of heating systems with more
than two heating zones, an additonal kit
with Logon B G2Z2 controller in a wall
hung box is available. These kits can
be used in a modular way up to a maxi-
mum of 8 heating zones.
See chapter "Installation examples" for
more details regarding connections of
pumps, sensors, etc.
Cascade control
The R600 can be controlled in a casca-
de system of maximum 8 boilers. This
can be done by using the integrated
Master/Slave cascade functionality in
combination with an optional BUS com-
munication device OCI345 (see chapter
"Accessories" for more details).
The LMS14 includes an intelligent cas-
cade control, which allows free pro-
gramming of boiler sequence after cer-
tain hours of operation.
See chapter "Installation examples" for
more details regarding connections of
pumps, sensors, etc.