18
17
– check the operation of summer and winter mode, regulation of hot-water heating
– set appropriate pump speed and pressure in the heating system
– test function of ball valves before the boiler
– get a user acquainted with the boiler attendance which is confirmed by the user´s
signature in the letter of guarantee
– write down putting the boiler into operation to the letter of guarantee and instructions for
use
Control functions of automatics include ignition of flame, its control and smooth
modulation. Automatics has two functional units:
– burner control unit (ACCF)
– flame control and modulation unit (CMF)
– signalling of working and breakdowns with the help of LED lights on the board
– elimination of disturbing caused by ignition and contact switching
– control of a circulation pump with a run-out function after the request for heating
– control of a ventilator and air flow with a run-out function
– earthing connector on the board
– 2A fuse on the board
– connecting the phase, neutral conductor and earthing on the entry with the help of
connector on the board
– connecting the spatial thermostat with the help of connector on the board
– connecting the emergency thermostat
– option of operation mode and reset by a switch on the board
– stopping the burner in the case of primary thermal sensor failure (breakdown or short)
– manual reset
– setting the boiler mode by P1 switch on the board
– setting starting output with the help of P5 trimer
– setting central heating and hot water temperature with potentiometers on the board
– control of hot water temperature with a thermal sensor on the outlet
– control of heating temperature with a thermal sensor on the outlet
– anti-fast cycling function in the heating mode which can be set to 180 seconds or
cancelled (by inserting a jumper) with JP3 on the board
Integrated control system of boiler of type AM 56 IMS 02 code 16 562
General properties:
Section of flame modulation
Description:
Control automatics of the AM 56 IMS 02 type for hanging gas boilers with
instantaneous water heating, double heat exchanger and automatic ignition.
– setting the burner output in the heating mode with P4 trimer on the board
Operation
Hot-water mode
Heating mode
Pump control and circulation
Anti-blocking-pump function
Hot-water mode is switched on by an information from the water passage sensor when the
passage is bigger than 3 l/min. After opening hot water, the circulation pump of the heating
circuit stops. Starting output (set up by resistance trimer P5) is kept after burning the boiler in
the time of two seconds. Then the boiler output is controlled by PID regulation by the
passage and temperature of hot water to reach the set temperature as soon as possible. When
the water passage drops under 2.5 l/min, the operation phase of hot water mode finishes. If
the set up temperature in the heating mode is over 55°C by the passage of hot water of 3
l/min, this temperature will be limited to 50°C to prevent incrustation in the heat exchanger.
If the outlet temperature of hot water reaches 70°C, the burner is off. After finishing the
request for hot water the pump starts working to limit incrustation. Run-out time of the pump
changes from 0.4 to 2 seconds depending on the temperature in the heating circuit in the time
of request for hot water. In the case of parallel requests the hot water mode is preferred to
heating mode. If the J5 jumper is positioned in the ON position, the run-out of the pump at
the end of the request for hot water is always 2 seconds.
Operation phase in the heating mode starts when a spatial thermostat puts a request for heat
and the operation switch (P1 potentiometer on the board) is in the
position. The pump
and ventilator are activated and after verifying air flow, the burner control unit is activated.
Starting output is kept in the time of two seconds after burning the boiler. Then the boiler
output is controlled by PID regulation until the set temperature for central heating is reached.
In the case the water overcomes the set value in 5°C, the burner is off. The burner is reignited
by the temperature 5°C lower than set value until the anti-fast cycling time is over. The anti-
fast cycling function is over until the contacts of the room thermostat are broken and
switched. When the JP4 jumper is set to ON position, the range of temperatures is lowered to
values suitable for floor heating.
The pump starts in the moment of the request for heating or hot water. At the end of each
request for heating the pump keeps working for 180 s more. If after working time the boiler
signals a failure in heating mode, the pump works on all the time as a run-out in the heating
mode.
After 24 hours of not working the pump is activated to 150 s. After breaking electrical
supply, the first cycle of anti-blocking-pump function starts after 3 hours of not working.
winter
Note: Always must be used an appliance limiting high temperature (to protect floor heating)
Summary of Contents for Attack NSK
Page 1: ......