52* Interval 2, second safety time ends.
● Ignition gas valve closes.*
● The main flame must have been ignited by now. Otherwise, burner control does not
receive a flame signal and goes to a lockout.*
● Main flame burns at a set ignition load.*
54 Servomotors run to min. capacity
60 Operation
● Burner control in automatic operation: the burner’s capacity controller adjusts
burner capacity within its modulating range to correspond to the current load by
controlling air dampers, gas regulator and fan motor rotation speed. The burner
operates controlled by burner control and capacity controller according to set
parameters and functions. If a process value exceeds the corresponding controller
setting, the burner is switched off.
● Burner in manual operation: the burner runs at a capacity set by the user. A boiler
thermostat or pressure switch controls when the burner is switched off.
● Lockout, if flame signal or air pressure signal is lost during operation.
● Lockout, if gas pressure rises too high.
● Lockout, if servomotors do not reach the defined position during operation.
● Lockout, if fan contactor contact opens or fan motor rotation speed signal
disappears during burner operation.
● Lockout, if the user presses the operating and display unit's
Esc
and
Enter
button
simultaneously during operation.
● Immediate shutdown, if gas pressure drops too low during operation.
● Immediate shutdown, if start release circuit opens during operation.
● Immediate shutdown, if safety loop opens during operation.
● Immediate shutdown, if boiler temperature limiter is activated during operation.
62 Controlled shutdown
● Servomotors run to min. load.
● Burner control carries out automatic gas valve proving.
70 Post-purge begins
● Gas safety valve closes (optional).
● Gas valve 1 closes.
● Gas valve 2 closes.
72... 78 Post-purge begins
● Servomotors run to post-purge position.
● Lockout, if burner control receives flame signal.
● Fan motor stops at the end of phase.
● Burner control safety functions end at the end of phase.
10 Servomotors run to stand-by position
● Re-start possible, when standby position 12 is reached.
80... 83 Gas valve proving
● 80: emptying of piping between valves, gas valve 1 closed and valve 2 open.
● 81: test of normal pressure in piping between valves, gas valves 1 and 2 closed.
● 82: filling of piping between valves, gas valve 1 open and valve 2 closed.
● 83: pressure test of piping between valves, gas valves 1 and 2 closed.
86 (102)
M4263 2206EN
Содержание GP-1000 M
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