Laars NTV, Инструкция по установке и эксплуатации

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Page 64
LAARS Heating Systems
27 Internal fault:
Flame rod
shorted to
ground detected
H Internal fault
1. Reset module
2. If fault repeats, replace module.
28 Internal fault:
A/D linearity
test fails
H Internal fault
1. Reset module
2. If fault repeats, replace module.
29 Internal fault:
Flame bias
cannot be set in
range
H Internal fault
1. Reset module
2. If fault repeats, replace module.
30 Internal fault:
Flame bias
shorted to
adjacent pin
H Internal fault
1. Reset module
2. If fault repeats, replace module.
31 Internal fault:
SLO electronics
unknown error
H Internal fault
1. Reset module
2. If fault repeats, replace module.
32-46 Internal fault:
Safety Key 0
through 14
L Internal fault
1. Reset module
2. If fault repeats, replace module.
47 Flame Rod to
ground leakage
H Internal fault
1. Reset module
2. If fault repeats, replace module.
48 Static fl ame (not
fl ickering)
H Internal fault
1. Reset module
2. If fault repeats, replace module.
49 24 VAC voltage
low/high
H 1. Check the module and display connections.
2. Check the module power supply and make sure that frequency, voltage
and VA meet the specifi cations.
50 Modulation fault H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
51 Pump fault H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
52 Motor
tachometer fault
H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
53 AC input phases
reversed
L 1. Check the module and display connections.
2. Check the module power supply and make sure that both frequency
and voltage meet the specifi cations.
3. On 24 VAC applications, assure that J4 terminal 10 and J8 terminal 2
are connected together.
59 Internal Fault:
Mux pin shorted
L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
61 Anti short cycle H Will not be a lockout fault. Hold Only.