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6 The electrical installations
The positioning of the control mod-
6.1
ule and control system module (option)
The installing electrical firm should mount the con-
trol module at a place easily accessible for opera-
tion.
By positioning the control system module
(option) near the heating distributor, the lengths of
the lines can be minimised, thus reducing costs.
The position for the control system components
has to be selected such that any negative influ-
ences by heat radiation (rear side of burner with
exhaust gas collector and exhaust gas blower as
well as exhaust gas line) or interference caused by
dust during cleaning are as little as possible.
The ambient temperature (approx. 10 cm away) for
the control system components during operation of
the facility must not exceed 35° C. If there is any
doubt, place the control system components out-
side the heating room near the door to the heating
room.
Electrical connection
6.2
-
Connect it according to the wiring plan, laying of
the CAN-BUS wire according to data sheet
4020.
-
Around hot elements (exhaust gas blower, ex-
haust gas pipe), the lines should be installed so
as to be temperature-protected in steel pipes at
the distance necessary.
-
The cable bushings to the motors and equip-
ment should be designed so as to be dustproof
and strain-relieved.
The regulations of the local electric supply
company must be complied with.
7 Fire protection
The fire protection regulations for wood heating
systems vary for each specific country.
The regulations valid for the respective place of
installation must be complied with.
Protection for the burner system
7.1
against back-burn
7.1.1
Preventing overfilling of the combustion
chamber
According to TRVB 118, a level monitor must be
installed to prevent any overfilling of the combus-
tion chamber. The PYROMAT DYN has a light
barrier as an ember monitoring system.
7.1.2
Preventing back-burn
With a sensor directly on the insertion pipe, any in-
cipient danger of back-burn will be detected and
counter-acted early on by an increase in the output
for a short period (increase in the advancing of ma-
terial). As a result, any protective equipment being
prescribed is prevented from going into force, and
normal operation is maintained for the purpose of
reliably providing the greatest possible supply of
heat.
7.1.3
The back-flash safeguard
According to TRVB 118, a back-flash safeguard is
prescribed for all systems over 150 kW.
TRD 414 prescribes a continuously present isolat-
ing layer if one foregoes having a spark alarm and
extinguishing system (TRD 414 relates primarily to
remnant wood from the processing of wood and
derived timber products). There is easing of re-
strictions in part in this connection for chip materi-
als from forestry and sawing activities. The PY-
ROMAT DYN is always equipped with an isolating
layer and is continuously operated with negative
pressure.
As a result, according to both TRVB 118 and TRD
414, the PYROMAT DYN is considered as
equipped with a back-flash safeguard.
6
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