Unigas HP60, Руководство пользователя, Страница: 28 / 36

28
Key:
A
limit contact switch for damper OPEN
position
AI advance signal of a block
AR main relay (working network) with
contacts “ar”
AS Monitor fuse
BR block relay with “br” contacts
BV fuel valve
EK reset button
FE detector electrode of ionisation circuit
FR flame relay with “fr” contacts
G ventilator motor or burner motor
GP gas pressostat
H main interruptor switch
L block stoppage LED
LK damper
LP air pressostat
LR safety regulator
M auxiliary contact switch for damper
“MIN” position
QRA UV detector
QRE ignition spark detector
R thermostat or pressostat
S fuse
SA damper servo-motor
SM synchronous programmer motor
V flame signal amplifier
V in case of servo-motor: auxiliary contact
for response to fuel valve re damper
position
W safety pressostat or thermostat
Z ignition transformer
Z in case of servomotor: end of limit
contact switch for damper CLOSED
position
ZBV pilot burner fuel valve
° for mono-tube burners
°° for twin-tube burners
(1 )input for raising QRA detector voltage
to test level
(2) input for excitation of flame relay during
flame detector
t e s t
circuit (contact XIV) and during safety
time (contact I
V)
(3) Do not press EK for more than 10
seconds
Programmer diagram
t1
pre-ventilation time
t2 safety time
*t2' 1st safety time
t3 pre-ignition time
*t3' pre-ignition time
t4 interval for creating current between
terminals 18 and 19
*t4' interval for creating current between
terminals 17 and 19
t5 interval for creating current between
terminals 19 and 20
t6 post-ventilation time
t7 interval between response and current
created at terminal 7
t8 duration of start-up
*t9 2nd safety time
t10 interval before air pressure monitoring
begins
t11 damper opening travel time
t12 damper closure travel time
t13 permissible post-combustion time
t16 initial delay of damper OPEN response
t20 interval before programmer
automatically stops
* These times are valid with the use of a series
01 safety device for monitoring burners with
intermittent pilot lighter.
APPENDIX