Mark Infra HT.2 User manual

MARK BV -The Netherlands
Beneden Verlaat, 87 – 89 Phone [phone] Web page www.mark.nl
9645 – BM Veendam Fax [phone] E-mail [email protected]
Luminous Infra-red Gas Heaters
MANUAL for INSTALLATION,
RUNNING and MAINTENANCE
“Infra HT.2” and “Infra HT.2 eco”
“Infra HT.2 PIEZO” and “Infra HT.2 eco PIEZO”
“Infra HT.2 DS”

page 2
CONTENT
For Your safety 2
Introduction / before starting installation 3
Plate label 4
Warrenty terms 4
Technical data 5
. heaters Infra HT.2 and Infra HT.2 eco 5
. heaters Infra HT.2 PIEZO and Infra HT.2 eco PIEZO 6
. heaters Infra HT.2 DS 7
Installation 8
. ventilation 8
. positioning 9 and 10
. minimum distance to people 11
. minimum distance to inflammable surfaces 12
. gas connection 13
. SIT control unit, electric connection 14
. SIT control unit, wiring diagram ON-OFF version 15
. SIT control unit, H / L version 16 and 17
. SIT control unit, wiring diagram H / L version 18
Put in opeartion and First Start-up 19
. heaters Infra HT.2, Infra HT.2 eco and Infra HT.2 DS 20
. heaters Infra HT.2 PIEZO and Infra HT.2 eco PIEZO 21
Maintenance and Annual Check 22
. nozzle replacement 23
. trouble shooting 24
CE certificate 25 and 26
Service sheet 27
FOR YOUR SAFETY
IMPORTANT: heaters MUST NOT be used in domestic environments. This unit will be
devoted only to the use for which it was expressly provided, all other uses will be
considered improper and therefore dangerous.
IMPORTANT : heaters MUST NOT be used in ambients with inflamable materials,
liquids or vapours : non-compliance with these requirements may be cause of death, injury
to persons or damage to things.
In case of gas smell : vent the ambient, do not start apparatus or electric
switches, leave the building; then contact gas company and follow their
instruction; if not possible, contact Firemen

page 3
GENERAL INSTRUCTIONS for INSTALLER,
USER and MAINTENANCE PERSONNEL
Thank you for having chosen MARK BV products !!! We are pleased to have You among
our Customers, and we do think that use of our heaters will be fully satisfactory. To keep
heaters perfectly working and safe, we ask you to follow the instructions of this handbook and
to have all installation and maintenance operations carried out only by skilled personnel. In
case of non-compliance with the following instructions, the warranty covering the
products will be null and void.
IMPORTANT!!! This manual is an integral and essential to the product and must be delivered
to the user. Please read the warnings contained in the manual before starting the
installation as provide important information concerning the safety of installation, use and
the necessary maintenance operations to be conducted over MARK BV heaters. Store
carefully the manual for further consultations.
Installation should be done in accordance with the Regulations in force, as instructed by the
Manufacturer and by professionally qualified staff; for professionally qualified staff means that
having specific technical competence in the field of components plants and, in particular, the
Technical Service Centres authorized by MARK BV. These devices must be installed only in
premises with a sufficient ventilation. An incorrect installation can cause damage to
people, animals and things, for which the Manufacturer is not responsible.
After you have removed any element of packing, ensure the integrity of the contents; in case
of doubt not use the equipment and contact the Manufacturer. The elements of packaging are
potentially dangerous and therefore should not be left within the reach of children and must be
disposed of according to regulations.
In case of failure and/or malfunction of the appliance, turn it off refraining from any attempt to
repair or direct intervention; the eventual repair of products MARK BV should be performed
only by an authorized Service Center by the Manufacturer using only original spare parts. In
each case, call professionally qualified staff.
To ensure the efficiency of the appliance and for its proper functioning periodic maintenance is
essential, performed by professionally qualified personnel, following the directions of
Manufacturer. Before carrying out any operation or maintenance of cleanliness, wait for the
unit is cold, disconnect the unit from the main power supply acting on the plant
switch, close gas supply acting on cut-off devices. If the unit is equipped with accessories
or modification kits (including electric) must be used genuine spare parts and accessories.
Failure to comply with the directions above may jeopardize the safety of the appliance.
When you decide to stop using the apparatus, will render harmless all parties that may be a
source of potential danger. If the unit should be sold or transferred to another owner, always
make sure this manual will accompany the equipment so that it can be consulted by the new
user and / or maintainer.
It is excluded any contractual liability and extra-contractual the Manufacturer for damage
caused by errors in the installation and use, and from non-compliance with the instructions
given by the Manufacturer. The installation and maintenance must be carried out in
accordance with regulations in the country of installation and the state of theart.

page 4
Plate label
Each unit is delivered complete with a plate of technical data, do not removable and placed at
the head of the heater.
note-A1 apparatus, gas categoryII 2L3B
Plate label (exemp le : Infra HT 16.2 eco, G25 natural gas)
Warrenty
MARK BV guarantees its products, whether installed by authorized personnel, for a period of 12
months from the date of the first start-up and no later than 18 months from the date of sale.
The warranty does not cover the components supplied by third parties, these are subject to
the conditions of the original warranty.
The guarantee is only the free supply on Ex-Works basis, of parts with manufacturing or
workmanship defects.
The guarantee does not cover disadvantages due to carelessness, incorrect setting, misuse of
the unit or fortuitous accidents, and not dependent on imperfection processing or defective
materials, and those due to dismantling or change without prior authorization from MARK BV.
The proper functioning of the apparatus depends on a proper installation and an start-up.
Failure to comply with these rules immediately involves the decay of the guarantee, and
therefore of responsibility by the manufacturer.

page 5
TECHNICAL DATA
series“Infra HT.2” and “Infra HT.2 eco”
Model, series Infra HT.2 .4.2 .6.2 .8.2 .10.2 .12.2 .16.2 .10+10.2 .12+12.2 .16+16.2
Weight, series Infra HT.2
(kg)
13
16
19
21
25
31
37
44
52
Model, series Infra HT.2 eco .4.2 e .6.2 e .8.2 e .10.2 e .12.2 e .16.2 e .10+10.2 e .12+12.2 e .16+16.2 e
Weight, series Infra HT.2 eco
(kg)
8 10 12 14 17 21 29 34 40
Number of ceramic plates
n°
4 6 8 10 12 16 20 24 32
Electric feeding 230 Volt - single phase - 50 Hz
NOx class 4 4 4 4 4 4 4 4 4
GAS G20
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1 18,3 22,2 26,0 36,6 44,4 52,0
Heat input MAX (Hi)
(kW)
6,5
8,6
14,5
16,5
20,0
23,4
33,0
40,0
46,8
Heat input MIN (Hs)
(kW)
5,4 7,2 12,1 13,8 16,7 19,5 27,6 33,4 39,0
Heat input MIN (Hi)
(kW)
4,9 6,5 10,9 12,4 15,0 17,6 24,8 30,0 35,2
GAS supply pressure
(mbar)
20,0 20,0 20,0 20,0 20,0 20,0 20,0 20,0 20,0
NOZZLE pressure MAX
(mbar)
15,5
14,0
14,0
15,0
16,0
14,0
15,0
16,0
14,0
NOZZLE pressure MIN
(mbar)
8,5
7,5
8,0
9,0
9,5
8,0
9,0
9,5
8,0
Gas consumption MAX
(Sm
3
/h)
0,69 0,91 1,53 1,75 2,12 2,48 3,50 4,24 4,96
Gas consumption MIN
(Sm
3
/h)
0,52 0,69 1,15 1,31 1,59 1,86 2,62 3,18 3,72
Nozzle diameter (mm) 2,10 2,45 3,10 3,30 3,50 3,90 2 x 3,30 2 x 3,50 2 x 3,90
GAS G25
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1 18,3 22,2 26,0 36,6 44,4 52,0
Heat input MAX (Hi)
(kW)
6,5 8,6 14,5 16,5 20,0 23,4 33,0 40,0 46,8
Heat input MIN (Hs)
(kW)
5,4 7,2 12,1 13,8 16,7 19,5 27,6 33,4 39,0
Heat input MIN (Hi)
(kW)
4,9
6,5
10,9
12,4
15,0
17,6
24,8
30,0
35,2
GAS supply pressure
(mbar)
25,0
25,0
25,0
25,0
25,0
25,0
25,0
25,0
25,0
NOZZLE pressure MAX
(mbar)
13,7 14,0 14,5 16,0 16,0 14,0 16,0 16,0 14,0
NOZZLE pressure MIN
(mbar)
8,3 7,5 8,5 9,5 9,5 8,0 9,5 9,5 8,0
Gas consumption MAX
(Sm
3
/h)
0,80 1,06 1,78 2,03 2,46 2,88 4,06 4,92 5,76
Gas consumption MIN
(Sm
3
/h)
0,60
0,80
1,34
1,53
1,85
2,17
3,06
3,70
4,34
Nozzle diameter
(mm)
2,30 2,70 3,40 3,60 3,80 4,30 2 x 3,60 2 x 3,80 2 x 4,30
GAS G30
Heat input MAX (Hs)
(kW)
7,0 9,3 13,5 17,9 21,7 25,4 35,8 43,4 50,8
Heat input MAX (Hi)
(kW)
6,5
8,6
12,5
16,5
20,0
23,4
33,0
40,0
46,8
Heat input MIN (Hs)
(kW)
5,3 7,0 10,2 13,4 16,3 19,1 26,8 32,6 38,2
Heat input MIN (Hi)
(kW)
4,9 6,5 9,4 12,4 15,0 17,6 24,8 30,0 35,2
GAS supply pressure
(mbar)
30,0 30,0 30,0 30,0 30,0 30,0 30,0 30,0 30,0
NOZZLE pressure MAX
(mbar)
28,2
28,0
28,0
28,5
28,1
27,5
28,5
28,1
27,5
NOZZLE pressure MIN
(mbar)
16,5
16,0
15,5
16,0
16,0
16,5
16,0
16,0
16,5
Gas consumption MAX
(kg/h)
0,51 0,68 0,99 1,30 1,58 1,84 2,60 3,16 3,68
Gas consumption MIN
(kg/h)
0,39 0,51 0,74 0,98 1,18 1,39 1,96 2,36 2,78
Nozzle diameter (mm) 1,30 1,50 1,80 2,10 2,30 2,45 2 x 2,10 2 x 2,30 2 x 2,45
GAS G31
Heat input MAX (Hs)
(kW)
7,0 9,3 13,5 17,9 21,7 25,4 35,8 43,4 50,8
Heat input MAX (Hi)
(kW)
6,5 8,6 12,5 16,5 20,0 23,4 33,0 40,0 46,8
Heat input MIN (Hs)
(kW)
5,3 7,0 10,2 13,4 16,3 19,1 26,8 32,6 38,2
Heat input MIN (Hi)
(kW)
4,9
6,5
9,4
12,4
15,0
17,6
24,8
30,0
35,2
GAS supply pressure
(mbar)
37,0 37,0 37,0 37,0 37,0 37,0 37,0 37,0 37,0
NOZZLE pressure MAX
(mbar)
36,2 35,7 35,7 36,2 36,2 35,7 36,2 36,2 35,7
NOZZLE pressure MIN
(mbar)
22,0 20,0 20,0 20,0 20,0 20,5 20,0 20,0 20,5
Gas consumption MAX
(kg/h)
0,50
0,67
0,97
1,28
1,55
1,82
2,56
3,10
3,64
Gas consumption MIN
(kg/h)
0,38
0,50
0,73
0,96
1,16
1,37
1,92
2,32
2,74
Nozzle diameter
(mm)
1,30 1,50 1,80 2,10 2,30 2,45 2 x 2,10 2 x 2,30 2 x 2,45

page 6
series “Infra HT.2 PIEZO” and “Infra HT.2 eco PIEZO”
Model, series Infra HT.2 PIEZO .4.2 PIEZO .6.2 PIEZO .8.2 PIEZO
Weight, series Infra HT.2 PIEZO
(kg)
13
16
19
Model, series Infra HT.2 eco PIEZO .4.2 eco PIEZO .6.2 eco PIEZO .8.2 eco PIEZO
Weight, series Infra HT.2 eco PIEZO
(kg)
8 10 12
Number of ceramic plates
n°
468
Electric feeding NO NO NO
NOx class 444
GAS G20
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1
Heat input MAX (Hi)
(kW)
6,5
8,6
14,5
Heat input MIN (Hs)
(kW)
---
Heat input MIN (Hi)
(kW)
---
GAS supply pressure
(mbar)
20,0 20,0 20,0
NOZZLE pressure MAX
(mbar)
15,5
14,0
14,0
NOZZLE pressure MIN
(mbar)
-
-
-
Gas consumption MAX
(Sm
3
/h)
0,69 0,91 1,53
Gas consumption MIN
(Sm
3
/h)
---
Nozzle diameter (mm) 2,10 2,45 3,10
GAS G25
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1
Heat input MAX (Hi)
(kW)
6,5 8,6 14,5
Heat input MIN (Hs)
(kW)
---
Heat input MIN (Hi)
(kW)
-
-
-
GAS supply pressure
(mbar)
25,0
25,0
25,0
NOZZLE pressure MAX
(mbar)
13,7 14,0 14,5
NOZZLE pressure MIN
(mbar)
---
Gas consumption MAX
(Sm
3
/h)
0,80 1,06 1,78
Gas consumption MIN
(Sm
3
/h)
-
-
-
Nozzle diameter
(mm)
2,30 2,70 3,40
GAS G30
Heat input MAX (Hs)
(kW)
7,0 9,3 13,5
Heat input MAX (Hi)
(kW)
6,5
8,6
12,5
Heat input MIN (Hs)
(kW)
---
Heat input MIN (Hi)
(kW)
---
GAS supply pressure
(mbar)
30,0 30,0 30,0
NOZZLE pressure MAX
(mbar)
28,2
28,0
28,0
NOZZLE pressure MIN
(mbar)
-
-
-
Gas consumption MAX
(kg/h)
0,51 0,68 0,99
Gas consumption MIN
(kg/h)
---
Nozzle diameter (mm) 1,30 1,50 1,80
GAS G31
Heat input MAX (Hs)
(kW)
7,0 9,3 13,5
Heat input MAX (Hi)
(kW)
6,5 8,6 12,5
Heat input MIN (Hs)
(kW)
---
Heat input MIN (Hi)
(kW)
-
-
-
GAS supply pressure
(mbar)
37,0 37,0 37,0
NOZZLE pressure MAX
(mbar)
36,2 35,7 35,7
NOZZLE pressure MIN
(mbar)
---
Gas consumption MAX
(kg/h)
0,50
0,67
0,97
Gas consumption MIN
(kg/h)
-
-
-
Nozzle diameter
(mm)
1,30 1,50 1,80

page 7
series “Infra HT.2 DS”
Model Infra HT.2 DS 4.2 DS 6.2 DS 8.2 DS 10.2 DS 12.2 DS
Number of ceramic plates
n°
4 6 8 10 12
Electric feeding 230 Volt - single phase - 50 Hz
Weight, series Infra HT.2 DS
(kg)
11 13 15 17 19
NOx class 44444
GAS G20
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1 18,3 22,2
Heat input MAX (Hi)
(kW)
6,5 8,6 14,5 16,5 20,0
Heat input MIN (Hs)
(kW)
5,4
7,2
12,1
13,8
16,7
Heat input MIN (Hi)
(kW)
4,9 6,5 10,9 12,4 15,0
GAS supply pressure
(mbar)
20,0 20,0 20,0 20,0 20,0
NOZZLE pressure MAX
(mbar)
15,5 14,0 14,0 15,0 16,0
NOZZLE pressure MIN
(mbar)
8,5
7,5
8,0
9,0
9,5
Gas consumption MAX
(Sm
3
/h)
0,69 0,91 1,53 1,75 2,12
Gas consumption MIN
(Sm
3
/h)
0,52 0,69 1,15 1,31 1,59
Nozzle diameter (mm) 2,10 2,45 3,10 3,30 3,50
GAS G25
Heat input MAX (Hs)
(kW)
7,2 9,6 16,1 18,3 22,2
Heat input MAX (Hi)
(kW)
6,5 8,6 14,5 16,5 20,0
Heat input MIN (Hs)
(kW)
5,4 7,2 12,1 13,8 16,7
Heat input MIN (Hi)
(kW)
4,9
6,5
10,9
12,4
15,0
GAS supply pressure
(mbar)
25,0 25,0 25,0 25,0 25,0
NOZZLE pressure MAX
(mbar)
13,7 14,0 14,5 16,0 16,0
NOZZLE pressure MIN
(mbar)
8,3 7,5 8,5 9,5 9,5
Gas consumption MAX
(Sm
3
/h)
0,80
1,06
1,78
2,03
2,46
Gas consumption MIN
(Sm
3
/h)
0,60 0,80 1,34 1,53 1,85
Nozzle diameter (mm) 2,30 2,70 3,40 3,60 3,80
GAS G30
Heat input MAX (Hs)
(kW)
7,0
9,3
13,5
17,9
21,7
Heat input MAX (Hi)
(kW)
6,5 8,6 12,5 16,5 20,0
Heat input MIN (Hs)
(kW)
5,3 7,0 10,2 13,4 16,3
Heat input MIN (Hi)
(kW)
4,9 6,5 9,4 12,4 15,0
GAS supply pressure
(mbar)
30,0
30,0
30,0
30,0
30,0
NOZZLE pressure MAX
(mbar)
28,2 28,0 28,0 28,5 28,1
NOZZLE pressure MIN
(mbar)
16,5 16,0 15,5 16,0 16,0
Gas consumption MAX
(kg/h)
0,51 0,68 0,99 1,30 1,58
Gas consumption MIN
(kg/h)
0,39
0,51
0,74
0,98
1,18
Nozzle diameter
(mm)
1,30 1,50 1,80 2,10 2,30
GAS G31
Heat input MAX (Hs)
(kW)
7,0 9,3 13,5 17,9 21,7
Heat input MAX (Hi)
(kW)
6,5
8,6
12,5
16,5
20,0
Heat input MIN (Hs)
(kW)
5,3 7,0 10,2 13,4 16,3
Heat input MIN (Hi)
(kW)
4,9 6,5 9,4 12,4 15,0
GAS supply pressure
(mbar)
37,0 37,0 37,0 37,0 37,0
NOZZLE pressure MAX
(mbar)
36,2
35,7
35,7
36,2
36,2
NOZZLE pressure MIN
(mbar)
22,0 20,0 20,0 20,0 20,0
Gas consumption MAX
(kg/h)
0,50 0,67 0,97 1,28 1,55
Gas consumption MIN
(kg/h)
0,38 0,50 0,73 0,96 1,16
Nozzle diameter (mm) 1,30 1,50 1,80 2,10 2,30
note –the unit “Infra HT 10.2 DS”is NOT in production yet

page 8
INSTALLATION
Ventilation of the ambients
The unit leaves the combustion products into the environment in which it is used (equipment
type A1). It is therefore necessary to ensure ventilation and air changes of the premises
in which the heater is installed, realizing appropriate air outlet openings on the perimeter
walls of the same, or creating a system of mechanical ventilation. To ensure a sufficient air
change, the flow of air needed can be calculated using the following equation (UNI EN 13410):
Vtot = ΣQnb x L
Where :
•Vtot air change flow rate in m
3/h
•ΣQnb total heating power installed in the premises in kW
•L air change coefficient (must be ≥ 10 m
3 /h / kW)
IMPORTANT !!! air change coefficient “L” to be used MUST NOT
be lower than 10 m3/h for each kW of installed power
For NO reason the heaters can be installed :
•in ambients used as residential ambient
•in rooms smaller than 12 m3
•where wind speed is higher than 2 m/s
IMPORTANT:
heaters
must be installed
in
well-ventilated and manned ambients, in
compliance with current legislation

page 9
Positioning of the radiant heater
The heaters can be installed on walls / pillars, or hanging at ceiling. On request, we can
provide supports (S hooks and chains are excluded) for suspension at ceiling (picture 1), or
wall brackets to fix the heaters on the wall (picture 2) with different angled positions for
the heater. The following figures will show you how to install all types of heaters.
picture 1 – with chains seriesInfra HT.2 picture 2 – at wall seriesInfra HT.2
picture 1 – with chains series Infra HT.2 eco picture 2 – at wall series Infra HT.2 eco
picture 1 – with chains series Infra HT.2 DS picture 2 – at wall series Infra HT.2 DS

page 10
The brackets provided by MARK BV allow an angle of installation variable once mounted on a
wall or pillar, in order to get a better heat distribution (picture 2.1 shows supports for units
type Infra HT.2 eco, Infra HT.2 eco PIEZO and Infra HT.2 DS)
IMPORTANT !!!
•at each side of the burner 2 hooks are provided with M8 inserts, for fixing to a wall or
at ceiling by means of appropriate brackets (not supplied, available on request); do not
create other anchor points on the carpentry of the heater and in particular on
the body burner, but use only those designed by the factory
•we recommend MARK BV original brakets for installation of the radiant heaters
•for fixing brackets on a wall or pillars assess the consistency of walls and the load
applied, in order to choose the correct anchors to be used; in any case provide
blocks with M8 screw minimum diameter (e.g. anchor Fischer TA - M in steel, with M8
screw)
IMPORTANT !!!
The equipment must be installed in horizontal position.
In any case, the system of fixing / suspension must allow the thermal expansion of
appliance (some m illimeter depending on the model).
picture 2.1 – different angles available