23/24
Building Technologies Division CC1N7153en
21.09.2016
Legend (cont’d)
Lockout indication positions when there is no input signal (see Control sequence in the event of faults):
◄
No start
▲
Abortion of startup sequence
▼
Abortion of startup sequence
■
Lockout (fault in the flame supervision circuit)
1
Lockout (no flame)
P
Lockout (no air pressure)
TSA Ignition safety time
t1 Prepurge time with air damper fully open
t3 Preignition time, short («Z» connected to terminal 16)
t3´ Preignition time, long («Z» connected to terminal 15)
t3n Postignition time («Z» connected to terminal 15)
t4 Interval between voltage at terminals 18 and 19 («BV1-BV2»)
t5 Interval between voltage at terminals 19 and 20 («BV2» load controller)
t6 Postpurge time (with «M2»)
t7 Interval between start command and voltage at terminal 7 (start delay time for «M2»)
t8 Duration of startup sequence (excluding «t11» and «t12»)
t10 Only with LAL2 / LAL3: Interval from startup to the beginning of the air pressure check
t11 Air damper running time to the OPEN position
t12 Air damper running time to the low-fire position (MIN)
t13
t16 Interval to the OPEN command for the air damper
t20 Not with all LAL…: For self-shutdown of the sequence switch
Time table
To Next Page
Loading...
