25
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Infrared heaters HELIOS and their accessories may be put into operation only by a person who is
trained and authorized by MANDÍK, a.s.
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Infrared heaters and their accessories have to be assembled according to this Instruction Manual.
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Safety and fire regulations must be observed according to applicable standards.
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Before putting into operation, it is necessary to submit a copy of the wiring and gas pipelines revision
documents.
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Opening for flue gases measurement: Heaters without economizer have to have opening for flue
gases measurement in the first part of flue duct after the heater, heaters with economizer the
opening for flue gases measurement have to be immediately after the economizer.
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Infrared heaters and their accessories may only be connected to the mains voltage of 230V/50Hz.
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There must be granted access to junction box in which the heaters are connected.
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Main guard valve of gas must be opened, the gas distribution must be vented and adequate gas
overpressure must be assured.
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We recommend presence of a person acting on behalf of assembling company and on behalf of a
user for the purpose of training the operation staff.
1. Check the conformity of assembly of heater, flue gases exhaust and Air-intake duct visually with this
manual.
2. Switch the heater on at nominal power (see chapter 17) and after it starts to work, measure the
pressure on the jet at nominal power. Check the measured value with the table for the respective
heater type bellow and adjust it if necessary.
A Gas valve SIT 843 SIGMA
B Control automatics SIT 579 DBC
C Dual cable – two stage heaters only
1 Conical throat for manometer hose insertion
2 Closing screw for jet pressure measuring (flathead screwdriver 4 mm)
3 Setting screw for jet pressure of 2-nd stage (maximum power) with hexagonal head 10 mm
4 Setting screw for jet pressure of 1-st stage (minimum power) for cross-point screwdriver
C
1
2
3
4
A
B
Summary of Contents for HELIOS
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