103
14 - USE
14.16 - Diagnostic:
Lockouts “Loc”
To RESET a lockout on units model
199, simply press RESET key.
On units model 399 up to 1000,
because are multiburners, when the
heater go into a lockout state you’ll
see
icon and the corresponding
burner icon (
or
) in fail,
that blink. To try to reset the Lockout
you have to press the RESET button.
Then display will show the Lockout
number. Then you can try to reset the
lockout pushing again the RESET key.
Press and hold for 5 seconds RESET
key in order to back in normal display
condition.
Continue
Loc
Description
Checks
Solutions
Loc 01
No fl ame detected after fi ve
ignition attempts.
a-correct gas supply pressure (see section 13.7);
b-ignition spark (see section 15.4);
c-correct amount of gas (see sections 13.7 and 13.8);
d-120Vac at the gas valve;
e-resistance of the two gas valve coils should be 0.18 kohm
and 1.1 kohm;
f- If the burner lights, but goes out at the end of the ignition
attempt, check: that the ionization current is set at a value
greater than 3uA (follow procedure in section 15.1.10)
a-If the gas supply pressure is incorrect, it must be adjusted to the
correct pressure;
b-If spark is not present, check for correct ignition ectrode position and
gap as per section 15.4; If position is correct, check for 120Vac at the
supply of the spark generator.
c-inspect the vent system and eliminate any obstructions;
d-if the voltage to the gas valve is not 120Vac the power control board
must be replaced;
e-if the resitance of the gas valve coils is not 0.18 kohm and/or 1.10
kohm, the gas valve must be replaced.
f-If the ionization current is not greater than 3uA, confi rm that the the
CO2 content is adjusted properly (see section 13.8). Check the fl ame
detection electrode (section 15.4) and if necessary replace it, check
the integrity of the fl ame detection electrode electrical wires.
Loc 02
Gas valve not supplied before
try to ignition
a - Check the integrity of the wires connections between gas
valve and control board
b - Check the safety chain of the high limit temperature
thermostat, high limit fl ue fuse and fl ue bloked pressure
switch
a - If wires are interrupted, replace the wires
b - check for one of the components listed and eventually replace it
c - If any of the above solution try to replace the gas valve or the power
control board
Loc 03
Gas valve lost cable connection
during fi re
a - Check the integrity of the wires connections between gas
valve and control board
a - If wires are interrupted, replace the wires
b - If wires are ok try to replace the gas valve or the power control board
Loc 04
Gas valve relay not closing
a - Check the integrity of the wires connections between gas
valve and control board
a - If wires are interrupted, replace the wires
b - If wires are ok try to replace the gas valve or the power control board
Loc 05
Gas valve circuit
a - Check LWCO connection
b - Check Flue blocked pressure switch
c - Check High limit temperature switch
d - Check High limit fl ue temperature fuse
WARNING!!!
If the high limit temperature
fuse melt, before any replacement, it is mandatory to
contact the appliance manufacturer to prevent any
permanent damages to the heat exchanger. Failure to
comply with this requirement can result in excessive
levels of carbon monoxide which can result in severe
personal injury or death!
Loc 06
Safety relay open error
Replace the power control board
Loc 07
Safety relay closed error
Replace the power control board
Loc 11
Blocking error over 20 hr
Press RESET button to see the Blocking error reference and
proceed follow it
Loc 12
Fan error
a - Check for 120Vac power connection of the fan
b - Check PWM connection of the fan
a - If no 120Vac is present replace the power control board
b - If no PWM signal, replace power control board
c - Try to replace the fan
Loc 13
Internal software error
Replace the power control board
Loc 14
Internal software error
Replace the power control board
Loc 15
Internal software error
Replace the power control board
Loc 16
Internal software error
Replace the power control board
Loc 17
Internal software error
Replace the power control board
Loc 18
Internal software error
Replace the power control board
Loc 19
Internal software error
Replace the power control board
Loc 20
Internal software error
Replace the power control board
Loc 21
Internal software error
Replace the power control board
Содержание Boiler
Страница 3: ...3 SAFETY INSTRUCTIONS ...
Страница 5: ...5 SAFETY INSTRUCTIONS ...
Страница 56: ...56 10 INSTALLATION Electrical connections Figure 10 4 Electrical customer connection for IB boilers ...
Страница 122: ...122 15 MAINTENANCE ...
Страница 126: ...126 17 SPARE PARTS Spare parts ...
Страница 129: ...129 17 SPARE PARTS 50 48 50 49 53 56 57 55 54 58 47 52 48 52 51 55 52 020010 03 006 199 ...
Страница 152: ...20 SEQUENCE OF OPERATION for BOILER ...
Страница 153: ...21 SEQUENCE OF OPERATION for WATER HEATER ...