Laars NTV, Инструкция по установке и эксплуатации

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Page 69
N
EO
T
HERM
Boilers and Water Heaters
165 Block intake OFF L 1. Check wiring and correct any errors.
2. Inspect the Block Intake Switch to make sure it is working correctly.
3. Reset and sequence the module.
4. During Standby and Purge, measure the voltage across the switch.
Supply voltage should be present. If not, the Block Intake Switch is
defective and needs replacing.
5. If the fault persists, replace the relay module.
172 Main relay
feedback
incorrect
L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
174 Safety relay
feedback
incorrect
L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
175 Safety relay open L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
176 Main relay ON at
safe start check
L Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
178 Safety relay ON
at safe start check
L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
184 Invalid
BLOWER /
SPARK output
setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
185 Invalid Delta
T limit enable
setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
186 Invalid Delta T
limit response
setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
187 Invalid DHW
(Domestic Hot
Water) high limit
enable setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
188 Invalid DHW
(Domestic Hot
Water) high limit
response setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
189 Invalid fl ame
sensor type
setting
L 1. Return to Confi guration mode and recheck selected parameters,
reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.