Mark Climate POWERFLEX Manuale utente
Technical manual EN
MARK POWERFLEX
0660405_R03
2
INSTRUCTIONS FOR USER
If you have questions concerning the use of your boiler or heating system, please ask your
installer. It is in your own interest and that of the installer that you are aware of how to
operate your boiler and heating system safely and efciently.
Operation
Water, coming from the radiators or from the DHW unit is heated in the aluminium heat exchanger.
The CH or DHW pump guarantees circulation of water. The air needed for combustion is sucked in
by a rpm controlled fan. At low boilertemperatures the uegasses can be cooled down sufciently for
condensation of the water.This water is drained to the sewer via a built in syphon. This drainage may
never be blocked. A burnercontroller with built in micro-processor takes care of the electrical regulation
of the boiler.
Topping up
The built in manometer indicates if the waterpressure is sufcient. As soon as the waterpressure drops
below 1 bar topping up is necessary. If topping up becomes a regular occurrence, your installation should
be checked by an installer.
Disconnect from the main. Connect the lling hose to the cold water tap and to the ll and drain valve
of the boiler. Before tightning the coupling in the installation slowly ll the hose with water allowing
present air to escape. Now open the ll and drain valve and slowly ll the installation till a pressure
between 1.5 and 2.0 bar is reached. When nished connect again to the main.
Bleeding
To remove any air present in the heating system and boiler, bleeding is necessary. Disconnect from the
main. Open all the radiator valves. Bleed the air from all the radiators starting with the ones at the
lowest point in the system.After bleeding, check the water pressure and top up if required (if water
pressure has dropped below 1 bar). Connect to the main again.
Starting the boiler
Please ask your installer how to start the boiler. Depending on how your heating system is controlled,
this could be via an external timeclock, thermostat, switch or otherwise. Once the boilerVolt-free enable
contacts are closed, the boiler will commence its starting sequence.
Boiler ow temperature
The burner controller adjusts the owtemperature between 20 ° and 85 °C. The temperature setting
can be changed using the control panel.The installation manual provides the instructions for setting the
ow temperature.
DHW (Hot Water) temperature (if applicable)
From the factory the DHW temperature is set to a value of 60 °C. This set value can be changed into
a value between 35 and 65 °C with help of the buttons on the control panel. If the DHW device has a
thermostat the DHW temperature can be adjusted by setting this thermostat.
Warning
Incorrect installation, adjustment, alteration, repair or maintenance work may lead to material
damage or injury. All work must be carried out by certied, qualied professionals. If the appliance
is not positioned in accordance with the instructions, the warranty shall be rendered void. This
appliance is not intended for use by children or persons with a physical, sensory or mental
handicap, or who lack the required experience or expertise.Children must be supervised to
ensure that they do not play with the appliance.
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EN
Switching off the boiler
During summer time the room thermostat can be set to a lower value to turn off the boiler. During
winter or during a longer periode of absence this temperature never should be set to a lower value than
15 °C. Don’t switch of the power. During a period of frost all the radiators should be partly or totally
opened to avoid danger of freezing.
The integrated pump control wil activate the pump every 24 hours during a short period even if no
demand is present.This prevents the pump jamming. Only when work on the boiler is carried out may
the main electricity supply and the gas supply be turned off (your installer can show where these are
located).
Errors
If an error occurs rst check the following
• Is the room thermostat properly set?
• Is the boiler connected to the main? Power supply present?
• Is the gas valve opened?
• Are the radiator valves open?
• Is the waterpressure in the installation higher than 1 bar?
• Is the Installation bled thoroughly?
An error is indicated by a ashing code on the display. It is very important for the sake of a correct
diagnosis to mention this ashing code when calling your installer. Reset the burner controller by
pressing the OK button on the control panel. If the error more often occurs contact your installer.
Maintenance
A yearly inspection of the boiler to be done by your installer is necessary. The life-time and the reliability
of the installation are improved by doing so.The casing of the boiler can be cleaned with a soft cloth (no
abrasives). Never use solvents like thinner!
Caution
The air supply (for air needed for combustion) and the ue parts are essential parts for safe and efcient
functioning of the boiler. Changes on these systems by non qualied persons are not allowed just like the
settings of the gasvalve.The gas/air ratio is set to a lambda value of approximately 1.26.This corresponds
with a CO2 level of 9,3 % (full load).
For further information see installation manual.
The information in this document is subject to change without notice.The most recent version of this
manual is always available at www.markclimate.com/downloads.
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EN
1 DESCRIPTION BOILER
1 Manometer
2 Display LCD
3 Power switch
4 Fuse
5 Burnerhood
6 Sight glass
7 Flow NTC
8 Ignition electrode
9 Ionisation ame detector
10 Inspection cover
6
11 Air supply
12 Gas pipe
13 Air intake silencer
14 Overheat limiter
15 Gas valve
16 Fan
17 Flow
18 Flue gas NTC
19 Return
20 Exhaust
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21 Syphon
22 Sump inspection cover
23 Return NTC
24 Fill and drain valve
25 Water pressure switch
26 Automatic air vent
27 Venturi
28 Boiler controller (Maxsys)
29 Terminal strip
30 Air pressure switch
31 Syphon pressure switch
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2 TECHNICAL DATA
340-5 425-6 510-7 595-8
Central heating
Nominal input max load (Hi) kW 340 425 510 595
Nominal input min load (Hi) kW 68 85 102 119
Nominal output max load 80-60 ºC kW 331 413,1 495,7 578,3
Nominal output min load 80-60 ºC kW 66 82,5 99 115,6
Efciency max load 80-60 ºC (Hi) % 97,2 97,2 97,2 97,2
Efciency min load 80-60 ºC (Hi) % 97 97 97 97
Efciency max load 50-30 ºC (Hi) % 103,1 103,1 103,1 103,1
Efciency 30% load 30 ºC (return) (Hi) %108,1 108,1 108,1 108,1
Flue gas
Temperature ue-gas max load 80-60 ºC ºC 65-70 65-70 65-70 65-70
Temperature ue-gas min load 80-60 ºC ºC 60-65 60-65 60-65 60-65
Flow ue-gasses at max load G25 m3/h 556 695 835 974
Flow ue-gasses at min load G25 m3/h 111 139 167 195
Maximum ue-resistance Pa 250 250 300 300
Emission CO (n=1) ppm 116 110 100 90
Emission NOx (n=1)/Nox class ppm 27/class 6 27/class 6 27/class 6 27/class 6
Types B23, B33, C13, C33, C43, C53, C63, C83 yes yes yes yes
Gas
Gasow max load G25 m3/h 41,8 52,3 62,8 73,2
Gasow min load G25 m3/h 8,4 10,5 12,6 14,6
Gas ow max load G25.3 m3/h 39,94 49,93 59,92 69,91
Gas ow min load G25.3 m3/h 7,99 9,98 11,98 13,98
Gasow max load G20 m3/h 36 45 54 63
Gasow min load G20 m3/h 7,2 9 10,8 12,6
CO2content max load G25/G20 /G25.3 % 9,3 9,3 9,3 9,3
CO2content min load G25/G20 /G25.3 % 9,1 9,1 9,1 9,1
O2content max load G25 % 3,90 +0,10-0,30 3,90 +0,10-0,30 3,90 +0,10-0,30 3,90 +0,10-0,30
O2content min load G25 % 4,30 +0,35-0,20 4,30 +0,35-0,20 4,30 +0,35-0,20 4,30 +0,35-0,20
O2content max load G25.3 % 3,95 +0,10-0,35 3,95 +0,10-0,35 3,95 +0,10-0,35 3,95 +0,10-0,35
O2content min load G25.3 % 4,35 +0,35-0,25 4,35 +0,35-0,25 4,35 +0,35-0,25 4,35 +0,35-0,25
O2content max load G20 % 4,25 +0,10-0,35 4,25 +0,10-0,35 4,25 +0,10-0,35 4,25 +0,10-0,35
O2content min load G20 % 4,60 +0,40-0,20 4,60 +0,40-0,20 4,60 +0,40-0,20 4,60 +0,40-0,20
Water
Maximum ow temperature ºC 85 85 85 85
Content heat-exchanger (without manifolds) ltr 36,2 43,7 51,1 58,5
Minimum/maximum operating pressure bar 0,8/6 0,8/6 0,8/6 0,8/6
Hydraulic resistance mbar 200 210 220 230
(DT20 nominal ow at full load 80-60 ºC)
Maximum DT max load/min load ºC 25/35 25/35 25/35 25/35
Maximum waterow m3/h 28,5 35,6 42,7 49,8
Weight
Mass of heat exchanger with manifolds and
sump
kg 150 180 215 245
Total weight boiler kg 330 365 429 464
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EN
Sizes of casing
Width mm 700 700 700 700
Depth without exhaust connection mm 1222 1222 1553 1553
Height with wheels (without) mm 1540 (1431) 1540 (1431) 1540 (1431) 1540 (1431)
Electrical
Protection IP 00B 00B 00B 00B
Supply life+neutral V/Hz 230/50 230/50 230/50 230/50
Standby power consumption* W 21 21 36 36
Min load powerconsumption* W 78 78 105 105
Max load power consumption* W 587 587 874 874
Maximum allowable power consumption W 2300 2300 2300 2300
Fuse A 10 10 10 10
* as coming from factory without extra devices connected
2.1 Component Matrix
Overview of main components used in PowerFlex-series
Part 340-5 425-6 510-7 595-8
Boiler control Honeywell Maxsys S4966V2052 S4966V2052 S4966V2052 S4966V2052
Display (user interface) DSP 49G2193 DSP 49G2193 DSP 49G2193 DSP 49G2193
Fan MVL 230VAC G3G200-GN20-30 G3G200-GN20-30 G3G250-GN17-01 G3G250-GN17-01
Gas-valve Dungs 230 VAC MBC-700-SE-S02 MBC-700-SE-S02 MBC-700-SE-S02 MBC-700-SE-S02
Venturi Honeywell VMU500A VMU500A VMU680 VMU680
Texi Burner round 130 mm Worgas 433 529 623 718
Silencer air-inlet yes
Silencer ue-gas round 250 mm L=300mm yes double yes single yes single yes single
NTC 12 k L=50 3 3 3 3
NTC 12 k OTC optional optional optional optional
Water low pressure device 1,6/0,8 bar yes yes yes yes
Pressure difference switch 40 Pa in and 25 Pa
out
yes yes yes yes
Syphon pressure difference switch 12,4 mbar out yes yes yes yes
Gas pressure switch : in 11,7-14,3 and out 8,6-
11,4 mbar
yes yes yes yes
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3 DIMENSIONS
Indice
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