ICC Mirius, Руководство по установке

Страница: 41 / 56

41
BACnet / Boilers
Table 37. Lock and Hold Codes
Code Description Recommended Troubleshooting of Lockout Codes
151 High fire switch ON OEM Specific
1. Check wiring and correct any potential wiring errors.
2. Check High Fire Switch to assure proper function (not welded or jumpered).
3. Manually drive the motor to the High Fire position and adjust the HF switch
while in this position and verify voltage through the switch to the HFS input with
a voltmeter.
4. If steps 1-3 are correct and the fault persists, replace the module.
152 Combustion pressure ON OEM Specific
1. Check wiring and correct any errors.
2. Inspect the Combustion Pressure Switch to make sure it is working correctly.
3. Reset and sequence the relay module.
4. During STANDBY and PREPURGE, measure the voltage between Terminal
J6-5 and L2 (N). Supply voltage should be present. If not, the lockout switch is
defective and needs replacing.
5. If the fault persists, replace the relay module.
153 Combustion Pressure Off
154 Purge Fan switch On OEM Specific
1. Purge fan switch is on when it should be off.
155 Purge Fan switch Off
156 Combustion pressure and Flame ON OEM Specific
1. Check that flame is not present in the combustion chamber. Correct any errors.
2. Make sure that the flame detector is wired to the correct terminal.
3. Make sure the F & G wires are protected from stray noise pickup.
4. Reset and sequence the module, if code reappears, replace the flame detec -
tor.
157 Combustion pressure and Flame OFF
158 Main valve ON OEM Specific
1. Check Main Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace the module.
159 Main valve OFF
160 Ignition ON OEM Specific
1. Check Ignition terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace the module.
161 Ignition OFF
162 Pilot valve ON OEM Specific
1. Check Pilot Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, replace the module.
163 Pilot valve OFF
164 Block intake ON OEM Specific
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.
165 Block intake OFF
166-171 RESERVED
Feedback Codes
172 Main relay feedback incorrect Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
173 Pilot relay feedback incorrect
174 Safety relay feedback incorrect
175 Safety relay open
176 Main relay ON at safe start check
177 Pilot relay ON at safe start check
178 Safety relay ON at safe start check
179-183 RESERVED
Parameter Faults
184 Invalid BLOWER/HSI output setting 1. Return to Configuration 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
186 Invalid Delta T limit response setting
187 Invalid DHW high limit enable setting
188 Invalid DHW high limit response setting
189 Invalid Flame sensor type setting
190 Invalid interrupted air switch enable setting
191 Invalid interrupted air switch start check enable setting
192 Invalid igniter on during setting
193 Invalid ignite failure delay setting