KOTRBATY KM-U Series User manual

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
Technical conditions
Tube gas fired infrared radiant heater
KM 10-U; KM 15-U; KM 22,5-U; KM 30-U; KM 36-U; KM 45-U
Attachment B1
Assembly guide for tube
radiant heaters
KM-U
3 to 6 meter long

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
REGULATIONS and WARNING:
Installation, assembly, repair work on gas and gas supply facilities can only be carried out by qualified
personnel of an authorized organization (In CZ - Decree No. 458/2000 Sb.). During installation, the
technical and safety regulations (relevant norm, regulations, etc.) must be observed. The installation
must be carried out according to the design documentation and the relevant standards.
BEFORE INSTALLATION, CHECK IF THE LOCAL CONDITIONS OF FUEL DISTRIBUTION, FUEL FEATURES,
PRESSURE AND SETUP OF THE APPLIANCE ARE COMPATIBLE!
The infrared heater may only be commissioned by a Kotrbatý
company service technician or a technician certified by Kotrbatý
company for this purpose. The commissioning of the radiant
heater can be done only after revision of electro and gas piping.
The manufacturer is not responsible for damage caused by
unprofessional or unauthorized assembly. When installing radiant
heaters, it is the duty of the assembly organization to ensure the
full safety of workers and persons moving around the installation
site and to take all precautions to prevent damage to surrounding
devices. Work actions performed at height above 1.5 m are
classified as work at heights with all the mandatory
consequences!

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
Fig.I
Legend:
1. Burner box
2. Heating surface - tubes
2a Burner’s tube
2b Fan’s tube
3. Hangers
4. Baffle
5. Joints – Tube heating surface
(KM with divided heating surface only)
6. Stainless-steel reflector (order based with or without
insulation)
6.1 Stainless-steel reflector front
6.2 Stainless-steel reflector end
6.3 Stainless-steel reflector middle
7. Fan box (KM-1 and KM45-U only)
8. Insulation clip (version with insulation only)
1.
2b
2a
6.1
6.3
6.2
3.
3.
3.
3.
4.
8.
8.

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
Fig.II
1) Check, if delivery contains all parts according to specification and fig.I, resp. II
Delivery contain electrical connecting cables with special connectors – keep for
commissioning technician
2) Fasten to the ceiling (or other construction) with sufficient load capability required number
of suspension points with nodal chain long enough to be able to suspend the heater to
demanded height. Distance between hangers (3) according to fig. II. NOTE - it is
recommended to leave 15 cm longer suspensions for easier adjustment of water level later
3) Move the loose hangers (3) from the transport position to the positions according to fig.II
and demanded heater type. NOTE ! - The first hanger from the burner is from manufacture
fixed and tight to position and has to remain on the same place!
ATTENTION!
a) Tube paint is not abrasion resistant so work carefully!
b) Hangers (3) with exception of the first one are all loose with
defined spaces around the tube - DO NOT TIGHT THEM!
4) Lift the heating surface (tubes (2) with allocated hangers (3)) to the defined height.
ATTENTION!
a) Underlay before lifting the heating surface in the touching
point with some carton paper or textile, paint is not abrasion
resistant!
b) It is necessary to perform the lifting uniformly and protect
the heating surface from falling down

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
5) Attach the prepared nodal chains to the screws on heating surface’s hangers. Done by screws
M8, which are located on the hangers (3). The eye on the nodal chain has to be always
secured by second nut M8
6) Align both parts of the heating surface (2) into one water level using spirit level
7) Check water level and demanded height of suspension (2)
8) Insert the baffle (4) into the part of FAN tube (2.b) according to fig. I
9) Locate the stainless-steel reflectors (6):
ATTENTION!
Before installation, it is necessary to check whether the
protective foil has been removed from the stainless-steel cover.
a) First fix the front reflector (6.1) on the side with fixed hanger (3)
b) Tight the reflector to the first hanger (3) by given screws (holes are located on the
reflector in the bottom bend in about 100 mm from the side)
c) Connect the other reflectors (6.2, 6.3) with two screws and pre-drilled holes in
bottom bend of the reflector (6) (screws can be found in delivered accessories)
10) Locate the burner box (1):
a) Thread the burner box (1) on the tubes (2) on the side of the first fixed hanger (3),
the window screen is located to the bottom
b) Through the nut mark the centre point on the tubes (2a) and (2b)
c) Remove the burner box (1)
d) Drill a hole of inside diameter Ø 8,5 mm in one wall of the tubes (2a) and (2b)
e) Locate the burner box (1) back on the tubes (2a) and (2b) and secure it by screws
M10
f) Connect the safety chain (between two nuts) to the screw M8 at the end part of the
burner box (1). The second end fix to the nodal chain suspending the first hanger (3)
ATTENTION!
Safety chain shall not be tight but loose
g) Check whether the U-screws on the first hanger are firmly tight (they may be looser
because of transport or manipulation)
11) Assembly of gas hose:
a) Connect the heater to the gas net by suitable gas hose
Instructions of the gas hose manufacturer shall be followed!
b) Connect one end of the hose to the cock valve on the gas piping. Seal the connection
c) The end of the hose with union nut is to be connected to the threaded end on the
burner box (1)

KOTRBATÝ V.M.Z., spol. s r.o., Sdružená 1788, 393 01 Pelhřimov, Česká Republika
http://www.kotrbaty.cz v.1/2019
ATTENTION!
There shall be placed the sealing from delivered accessories
between union nut and the threaded end on the burner box
(1)!
d) It is important to assembly the gas hose so not to create thrust force to the heater!
e) At the end perform thorough gas leakage test of all the joints
12) Electro assembly:
a) Install an ACIDUR distribution box with an inner ring at a distance of max. 1 m from
the radiant heater housing
b) Connect the corresponding cables to the particular ACIDUR distribution box according to
the electrical wiring diagram of the control box
c) If common cable routes with other power cables (e.g. crane, machine, etc.) are
proposed from the control box to the radiant heater, it is recommended to use
shielded cables such as JYTY instead of standard CYKY cables. The reason for this is to
prevent undesired induction of voltage and thus caused faults in operation of
emitters. Please contact us if necessary!
Connection between distribution box ACIDUR and
heater’s
burner box is performed
by the service technician while
commissioning the radiant heater.
13) The installation of the flue gas tube is done next and eventually combustion air inlet as well
according to the project documentation.