Technical data

3
5 Water System Installation
Customers must ensure that there is a supply of
water independent of the electricity supply. This
(redundant) design ensures that in case of a power
failure, the boiler will be reliably cooled by the
thermal run-off safety valve.
Refer furthermore to the standards and regula-
tions listed in this document.
5.1 Safety Equipment
The safety equipment for the heating installation
must be carried out by the heating engineer
authorised to do so.
See Spec Sheet 5960 as an example.
5.2 Expansion
With closed expansion, the supply pressure to the
expansion tank should be equal to the max.
amount of the facility plus 0.2 bar.
5.3 The boiler circuit with return circuit
valve
To reliably prevent boiler corrosion through con-
densation of the exhaust gases, the boiler return
flow temperature must in no case be below 65°C.
The PYROT rotary combustion chamber boiler is
infinitely variably output-controlled. For this, it is
necessary for there to be a constant flow through
the boiler of the water to be heated. The boiler cir-
cuit with the boiler pump and boiler mixer must
therefore be installed according to Spec Sheet
5960.
The design of the boiler circuit should be carried
out such that the temperature difference between
the forward flow and the return flow is equal to or
less than 15°C.
The triggering of the boiler pump and boiler control
valve is integrated in the control system that
comes with the facility.
5.4 The extinguishing water tank
A self-triggering extinguishing device must always
be installed by the furnace feed system. With re-
gard to the assembly, refer to the spec sheets in
the annex.
The functioning is carried out by means of an ex-
tinguishing valve and is not dependent on electric
current. A float-type switch monitors the water
level and should be electrically connected (see
connection diagram).
6 Electrical Installation
6.1 Positioning the control module and
control cabinet
The control module should be mounted by the in-
stalling electrical installation company at a spot
easily accessible for operation. Optimum position-
ing of the control cabinet will allow minimisation of
the length of installation lines and thus of costs.
The position of the control module and control
cabinet should be selected such that the negative
effect of heat radiation (front side of boiler, rear
side of boiler with exhaust gas collector and ex-
haust gas fan as well as exhaust gas line) and in-
terference caused by dust during cleaning will both
be kept as low as possible.
The ambient temperature for the control cabinet
(approx. 10 cm away from the control cabinet)
should not exceed 40°C while the system is in op-
eration. In case of doubt, preference should be
given to placing the control cabinet outside the
heating room near the heating room door.
6.2 Electrical connection
- Connect it according to the wiring plan, laying of
the CAN-BUS wire according to data sheet
4020.
- In the area of hot parts (exhaust gas fan, ex-
haust gas pipe), the lines should be installed in
steel pipes at an appropriate distance so as to
be temperature-protected.
- The cable bushings to the motors and equip-
ment must be executed so as to be dust-tight
and provided with a strain relief.
The regulations of the local electrical utility
company must be complied with.