Riello 966 T, Installation, Use And Maintenance Instructions

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40
SIGNAL FAULT PROBABLE CAUSE SUGGESTED REMEDY
No blink The burner does not
start 1 - No electrical power supply . . . . . . . . . . . . . . . . . . . . . . . . . Close all switches - Check fuses
2 - Linmit control device TL is open . . . . . . . . . . . . . . . . . . . . . Adjust or replace
3 - Safety control device TS is open. . . . . . . . . . . . . . . . . . . . . Adjust or replace
4 - Control box lock-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset control box (no sooner than 10 s after the
lock-out)
5 - Pump is jammed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
6 - Erroneous electrical connections . . . . . . . . . . . . . . . . . . . . Check connections
7 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
8 - Defective electrical motor . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
2 led After pre-purge and the
safety time, the burner
goes to lock-out 9 - No fuel in tank; water on tank bottom . . . . . . . . . . . . . . . . . Top up fuel level or suck up water
10 - Inappropriate head and air damper adjustments. . . . . . . . . Adjust
11 - Light oil solenoid valves fail to open (1st stage or safety) . . Check connections; replace coil
12 - 1st stage nozzle clogged, dirty, or deformed. . . . . . . . . . . . Replace
13 - Dirty or poorly adjusted firing electrodes . . . . . . . . . . . . . . . Adjust or clean
14 - Grounded electrode due to broken insulation . . . . . . . . . . . Replace
15 - High voltage cable defective or grounded . . . . . . . . . . . . . . Replace
16 - High voltage cable deformed by high temperature . . . . . . . Replace and protect
17 - Ignition transformer defective . . . . . . . . . . . . . . . . . . . . . . . Replace
18 - Erroneous valves or transformer electrical connections . . . Check
19 - Control box defective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
20 - Pump unprimed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Prime pump and see “Pump unprimes”
21 - Pump/motor coupling broken . . . . . . . . . . . . . . . . . . . . . . . Replace
22 - Pump suction line connected to return line . . . . . . . . . . . . . Correct connection
23 - Valves up-line from pump closed . . . . . . . . . . . . . . . . . . . . Open
24 - Filters dirty: line - pump - nozzle . . . . . . . . . . . . . . . . . . . . . Clean
25 - Defective photocell or control box . . . . . . . . . . . . . . . . . . . . Replace photocell or control box
26 - Dirty photocell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
27 - 1st stage operation of cylinder is faulty . . . . . . . . . . . . . . . . Change the cylinder
28 - Motor protection tripped . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset thermal cut-out
29 - Defective motor command control device . . . . . . . . . . . . . . Replace
30 - Missing phase thermal cut-out trips . . . . . . . . . . . . . . . . . . Reset thermal cut-out when third phaseis
re-connected
31 - Incorrect motor rotation direction . . . . . . . . . . . . . . . . . . . . Change motor electrical connections
4 led The burner starts and
then goes into lock-out 32 - Photocell short-circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace photocel
33 - Light is entering or flame is simulated . . . . . . . . . . . . . . . . . Eliminate light or replace control box
7 led Flame detachment 34 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust
35 - Poorly adjusted or dirty firing electrodes . . . . . . . . . . . . . . . Adjust
36 - Poorly adjusted fan air gate: too much air (1st stage). . . . . Adjust
37 - 1st nozzle is too big (pulsation) . . . . . . . . . . . . . . . . . . . . . . Reduce 1st nozzle delivery
38 - 1st nozzle is too small (flame detachment) . . . . . . . . . . . . . Increase 1st nozzle delivery
39 - 1st nozzle dirty, or deformed . . . . . . . . . . . . . . . . . . . . . . . . Replace
40 - Inappropriate pump pressure . . . . . . . . . . . . . . . . . . . . . . . Adjust to between 10 and 14 bar
41 - 1st stage nozzle unsuited to burner or boiler . . . . . . . . . . . See Nozzle Table, page 12; reduce 1st stage
42 - Defective 1st stage nozzle . . . . . . . . . . . . . . . . . . . . . . . . . Replace
The burner does not
pass to 2nd stage 43 - Control device TR does not close . . . . . . . . . . . . . . . . . . . . Adjust or replace
44 - Defective control box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
45 - 2nd stage sol. valve coil defective. . . . . . . . . . . . . . . . . . . . Replace
46 - Piston jammed in valve unit . . . . . . . . . . . . . . . . . . . . . . . . Replace entire unit
Fuel passes to 2nd
stage but air remains in
1st 47 - Low pump pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Increase
48 - 2nd stage operation of cylinder is faulty . . . . . . . . . . . . . . . Change cylinder
Burner stops at transi-
tion between 1st and
2nd stage.
Burner repeats starting
cycle 49 - Nozzle dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
50 - Photocell dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
51 - Excess air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reduce
Uneven fuel supply 52 - Check if cause is in pump . . . . . . . . . . . . . . . . . . . . . . . . . . Feed burner from tank
or fuel supply system located near burner
Internally rusted pump 53 - Water in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suck water from tank bottom with separate pump
Noisy pump, unstable
pressure 54 - Air has entered the suction line . . . . . . . . . . . . . . . . . . . . . Tighten connectors
- Depression value too high (higher than 35 cm Hg):
55 - Tank/burner height difference too great. . . . . . . . . . . . . . . . Feed burner with loop circuit
56 - Piping diameter too small . . . . . . . . . . . . . . . . . . . . . . . . . . Increase
57 - Suction filters clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
58 - Suction valves closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open
59 - Paraffin solidified due to low temperature . . . . . . . . . . . . . . Add additive to light oil
Pump unprimes after
prolonged pause 60 - Return pipe not immersed in fuel . . . . . . . . . . . . . . . . . . . . Bring to same height as suction pipe
61 - Air enters suction piping . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten connectors
Pump leaks light oil 62 - Leakage from sealing organ . . . . . . . . . . . . . . . . . . . . . . . . Replace pump
Smoke in flame
- dark Bacharach
- yellow Bacharach
63 - Not enough air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate
64 - Nozzle worn or dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
65 - Nozzle filter clogged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean or replace
66 - Erroneous pump pressure. . . . . . . . . . . . . . . . . . . . . . . . . . Adjust to between 10 - 14 bar
67 - Flame stability spiral dirty, loose, or deformed . . . . . . . . . . Clean, tighten in place, or replace
68 - Boiler room air vents insufficient . . . . . . . . . . . . . . . . . . . . . Increase
69 - Too much air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adjust head and fan gate
Dirty combustion head 70 - Nozzle or filter dirty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
71 - Unsuitable nozzle delivery or angle. . . . . . . . . . . . . . . . . . . See recommended nozzles
72 - Loose nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tighten
73 - Impurities on flame stability spiral . . . . . . . . . . . . . . . . . . . . Clean
74 - Erroneous head adjustment or not enough air . . . . . . . . . . Adjust; open gate valve
75 - Blast tube length unsuited to boiler . . . . . . . . . . . . . . . . . . . Contact boiler manufacturer
10 led 76 - Connection or internal fault
77 - Presence of electromagnetic disturbance . . . . . . . . . . . . . . Use the radio disturbance protection kit