Lennox e-Baltic D BOX 55, Инструкция по установке, эксплуатации и обслуживанию

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HEAT RECOVERY
e-BALTIC-IOM-2020.12-EN
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SERVICE DIAGNOSTIC
REFRIGERATION
Fault Possible causes and symptoms Solution
Low LP and LP cut out
Alarm 317: main frigorific issue Lack of charge, obstructed components
Alarm 327: too low LP
Freezing: wait that coil is defrosted by
exhaust air;
Air flow too low on evaporating side (too low
speed rate / fouled filter or coil).
HP problem and HP cut out
Incorrect airflow rates
Check fan (exhaust or supply) function of
the mode (Amps) and also filter.
Refrigerant charge too high
Check the refrigerant charge load
according to the refrigerant load table.
See also frigorific diagnostic of BALTIC™ section 'Refrigeration'.
INDOOR OR EXHAUST FAN BLOWER:
For both indoor supply fan and exhaust fan, same faults, causes and solutions are expected. See diagnostic of 'Indoor fan blower'.
HEAT RECOVERY CONTROL
CONFIGURATION
Configuration of CLIMATIC™ with the DS in expert mode for TRMO (with a modulating exhaust fan):
3813 RECOV. = Comp. for TRMO
3815 EXHAUST = Modulate for both ERVF & EBHO
3816 KIT
3817 Motor
to be checked function of your need
3818 Fan
USE
Protection :
•
Operating envelop Protection: compressor stopped during 6 minutes.
o
328: min HP = 20.5°Ccondensation;
o
329: max HP = 62°C condensation;
o
319: min LP = between -24.5°C and 1.6°C (function of the condensation temperature) during 5 min => freezing or
air flow on evaporator issue;
o
327: max LP = 26°C.
o
317: limit LP -27°C during 120 sec => frigorific failure (lack of refrigerant /closed components)
•
Anti-freezing Protection consist in defrosting the exhaust coil in heating mode with the extract air.
Control
•
No specific parameters have to be set for TRMO control.
•
Operation:
o
TRMO runs if there is heating or cooling needs;
o
above 50% fresh air, TRMO compressor has priority to start;
o
under 15°C return or under 20% fresh air, TRMO compressor is not authorized to start.