Rendamax R2000 Series, Техническая документация инструкция

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Upon satisfactory completion of commissioning hand the Technical documentation to the person
responsible for the plant and explain the method of safe operation. Ensure that he/she is fully conversant
with the starting, shut down, general operation and emergency shut down procedures.
Explain the
operation of the overheat control, by pressing button in right hand upper side panel, but stress that in
case of repeated overheating of the boiler that the fault should be corrected by a competent person.
Stress the importance of regular servicing for safe and efficient operation and that if a gas leak is
detected to turn off the boiler at the gas service cock and to call the local gas supplier.
Boiler failure
In case of boiler failure the system will fall into lock-out. Reset the boiler with the reset button on
the control panel. Repeat this several times if necessary. If the boiler still does not start, refer to
chapter ‘Operation and fault finding’ (7).
6.4 Instructions to user
DOC2012/2000en
37
7 Operation and fault indication
7.1 Function
The boiler starts up in the sequence described below: Heat demand. Ignition of pilot flame. As soon as
pilot flame is detected, an ionisation current will pass to the flame safeguard control box. The main gas valve
opens and gas ignites over complete burner tray. Main burner flame is detected by a sensing electrode.
The modulating control will commence from low fire condition.
7.2 Regulation
The burner (input) is controlled through a butterfly valve and modulates between 20% and 100% heat demand.
If the heat demand is smaller than 20%, the burner will remain off. The temperature is controlled through an
electronic PID regulator (EM- or EW-version).
7.3 Control panel
To assist with fault finding the control panels incorporate a number of warning indicators and switches.
Fig. 22 Control panel electronic modulating version (version EM)
RWF40
A Process value (actual temperature)
B Set point (temperature)
C Burner enable (not applicable)
D Mod. indicator (decrease fire rate)
E Mod. indicator (increase fire rate)
F Two-stage firing (not applicable)
G Limit comparator
H Manual operation
The keys K-L-M-N are used for displaying
values and changing parameters in the
temperature controllers configuration.
K Down key (reduce value)
L Up key (increase value)
M Programme key
N Exit key