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PYROGAS VARINO 65 - 300
We reserve the right to make changes to dimensions and construction 10 Edition 02.09.2015
© Copyright YGNIS AG CH-Ruswil
5. Description of the boiler control panel
The control panel of the PYROGAS VARINO condensing unit consists of the two systems burner management
and installation control.
5.1. Burner management:
The functions of a traditional heating unit are integrated in the expanded functions of the burner manager. The
burner manager is a micro-processor controlled electronics device which records and controls all data on the
boiler/burner. All safety-relevant measurements are recorded and monitored. The burner manager is linked with
an oxygen sensor which measures the oxygen partial pressure (0
2
content) in the flue gas. If a deviation from the
desired value is measured, the electronics corrects the quantity of inlet air to the combustion process via the
speed-controlled combustion air fan.
Key: Control panel for condensing unit
1 Burner switch ON/OFF
2 Fuse F1, 10 A burner / boiler
3 Fuse F2, 6.3 A heating controller (optional)
4 STB safety temperature limit device
5 STB 2 flue gas STB safety temperature limit device (optional)
6 Fault lamp, external faults
7 TÜV button
8 Release key of the sealing control (optional)
9 Fault lamp, sealing control (optional)
10 Operator station with display
11 DIN standard cut-out for accommodating an Ygnis heating controller (optional)
5.2. Governor types
A wide range of system controls has been designated for the PYROGAS VARINO condensing unit.
Based on the modular design, the planner is in a position to install the condensing unit specifically for the
installation with the appropriate type of control.
The modern micro-processor controlled Ygnis heating controller enables an optimum heating circuit and hot
water control.
RDO 243 governor
Heating governor providing regulation for 1 mixing circuit and automatic water loading device.
RDO 383 governor
Heating and master cascade governor for 2 mixing circuits, 1 automatic water loading device and DHW
circulation pump, can be added for use with 6 other mixing circuits by means of additional modules RZM 510,
with three other automatic water loading devices by means of additional modules RZM 515 and the cascade
control with three other boilers by means of additional modules RZM 530.
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