Pego NECTOR, Руководство по эксплуатации и обслуживанию

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NECTOR
Page 34
OPERATION AND MAINTENANCE MANUAL
Rev. 03-21
the set value plus the differential (r0); it disengages the compressor when the ambient temperature
is below the set value.
HOT mode (mOd parameter=1)
The NECTOR controller activates the hot resistance control when the ambient temperature drops
below the set value minus the differential (r0); it switches off the resistance when the ambient
temperature is higher than the set value.
EVAPORATOR CONFIGURATION
Parameters: nrE (3°).
The choice of the number of evaporators is managed by the nrE parameter:
-
In case of double evaporator set nrE=2 and enable one of the two auxiliary relays as evaporator
defrost output 2: AU1 or AU2 = 11 or -11. If evaporator probe 2 is used, activate analog input
An4=1.
-
If nrE=1 is set, evaporator probe 2 is disabled, variables d22, d32, displayed --- in variable tE2
are ignored.
In the case of defrosting with 2 evaporators, before restarting with the normal thermostat it is
expected that the defrosting will be completed on both evaporators.
MANUAL DEFROST ACTIVATION/DEACTIVATION
Parameters: d21 (1st), d22(1st), d31 (1st), d32 (1st), dd2 (1st).
To activate defrosting, simply press the key for a few seconds; in this way, if the conditions
are met, the defrosting output will be activated.
Defrosting of each of the two evaporators will end when the defrosting end temperature associated
with it is reached (parameters d21 and d22) or for maximum defrosting duration (parameters d31
or d32). The defrost sequence and delays set with parameter dd2 will also be respected.
Each of the two defrost outputs is not activated if the temperature set in the relative defrost end
variable (d21 or d22) is lower than the temperature detected by the evaporator probe.
Manual defrosting is possible even if the real-time clock defrosts have been set.
During a defrost in progress, pressing the key for 3 seconds forces the end of both defrosts.
HOT GAS DEFROSTING
Parameters: d1 (3°).
Set parameter d1 =1 for hot gas defrost management.
The compressor relay and defrost relays are activated throughout the defrost phase.
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5.22
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