RIELLO BURNES RS Serie Instrucciones De Instalación página 19

SIGNAL FAULT
2 pulses Once the pre-purging
phase and safety time
have passed, the burner
goes into lockout without
the appearance of the
flame
3 flashes The burner does not
switch on, and the lockout
appears
The burner switches on,
but then stops in lockout
Lockout during pre-purg-
ing phase
4 pulses The burner switches on,
but then stops in lockout
Lockout when burner
stops
7 pulses The burner goes into lock-
out immediately following
the appearance of the
flame
Burner goes into lockout
during operation
10 pulses The burner does not
switch on, and the lockout
appears
The burner goes into lock-
out
No led pulse The burner does not start 34 - No electrical power supply. . . . . . . . . . . . . . . . . . . . . . . . . . Close all switches - Check connections
The burner continues to
repeat the start-up cycle,
without lockout
Firing with pulsations
PROBABLE CAUSE
1 - The solenoid VR1 allows little gas through . . . . . . . . . . . . . Increase
2 - Solenoid valves VR1 or VS fail to open . . . . . . . . . . . . . . . Renew the coil or rectifier panel
3 - Gas pressure too low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Increase pressure at governor
4 - Ignition electrode wrongly adjusted. . . . . . . . . . . . . . . . . . . Adjust, see fig. (D)p. 6
5 - Electrode grounded due to broken insulation . . . . . . . . . . . Replace
6 - Faulty high voltage cable. . . . . . . . . . . . . . . . . . . . . . . . . . . Replace it
7 - High voltage cable deformed by high temperature . . . . . . . Replace and protect
8 - Ignition transformer defective. . . . . . . . . . . . . . . . . . . . . . . . Replace it
9 - Wrong electrical wirings of valves or transformer. . . . . . . . Check them
10 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
11 - A closed valve up-line from the gas train . . . . . . . . . . . . . . Open it
12 - Air in pipework. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bleed air
13 - VS and VR gas valves unconnected or with interrupted coil. . . Check connections or replace coil
14 - Air pressure switch in operating position . . . . . . . . . . . . . . Adjust or replace
Air pressure switch inoperative due to
insufficient air pressure:
15 - Air pressure switch adjusted badly. . . . . . . . . . . . . . . . . . . . Adjust or replace
16 - Pressure switch pressure point pipe blocked. . . . . . . . . . . . Clean
17 - Head wrongly adjusted.. . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust
18 - High depression in the furnace. . . . . . . . . . . . . . . . . . . . . . . . . . . Connect air pressure switch to fan suction line
19 - Defective capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
20 - Defective electrical motor. . . . . . . . . . . . . . . . . . . . . . . . . . . Replace it
21 - Flame simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace control box
22 - Flame remains in combustion head . . . . . . . . . . . . . . . . . . Eliminate persistence of flame or flame simu-
lationor replace control box
23 - The solenoid VR1 allows little gas through . . . . . . . . . . . . . Increase
24 - Ionisation probe wrongly adjusted. . . . . . . . . . . . . . . . . . . . Adjust, see fig. (D)p. 6
25 - Insufficient ionisation (lower than 5 mA). . . . . . . . . . . . . . . Check probe position
26 - Probe grounded. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Withdraw or replace cable
27 - Insufficient earthing of the burner. . . . . . . . . . . . . . . . . . . . . Correct the earthing
28 - Phase and neutral connections inverted. . . . . . . . . . . . . . . Invert them
29 - Defective flame detection circuit . . . . . . . . . . . . . . . . . . . . Replace control box
30 - Probe or ionisation cable grounded. . . . . . . . . . . . . . . . . . Replace worn parts
31 - Fault on air pressure switch. . . . . . . . . . . . . . . . . . . . . . . . . Replace
32 - Erroneous electrical connections. . . . . . . . . . . . . . . . . . . . . Check connections
33 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
35 - A limiter or safety control device is open. . . . . . . . . . . . . . . Adjust or replace
36 - Line fuse blocked. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace it
37 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
38 - No gas supply.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open the manual valves between meter and
39 - Mains gas pressure insufficient. . . . . . . . . . . . . . . . . . . . . . Contact your GAS COMPANY
40 - Minimum gas pressure switch fails to close. . . . . . . . . . . . . Adjust or replace
41 - Mains gas pressure is near the value . . . . . . . . . . . . . . . . . Reduce operating pressure
on which the min. gas pressure switch gas is adjusted.
The sudden drop of pressure switch operation which
follows valve opening causes temporary opening of the
pressure switch itself. The valve immediately closes and
the burner comes to a halt. Pressure increases again,
the pressure switch closes again and the firing cycle
is repeated.
The sequence repeats endlessly.
42 - Head poorly adjusted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust it (see page 7)
43 - Ignition electrode wrongly adjusted. . . . . . . . . . . . . . . . . . . Adjust, see fig. (D)p. 6
44 - Poorly adjusted fan air damper: too much air.. . . . . . . . . . . Adjust
45 - Output during firing phase is too high. . . . . . . . . . . . . . . . . Reduce
15
SUGGESTED REMEDY
train
min. gas
Replace gas filter cartridge.