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USER MANUAL – Release 1.2 of 01/01/2010
Page 124 of 191
Version: 02/03/2010
Step n°2 relay out
Step N° 2
OFF
Step N° 2
ON
Step N° 2
OFF
Step N° 2
OFF
Step n°3 relay out
Step N° 3
OFF
Step N° 3
OFF
Step N° 3
ON
Step N° 3
OFF
Step n°4 relay out
Step N° 4
OFF
Step N° 4
OFF
Step N° 4
OFF
Step N° 4
ON
Par FA01 = 3
ON / OFF continuous step insertion
In the case of cond. evap. temperature/pressure request and on the basis of the polarity selected they may
all be inserted/removed.
In the case of cond. evap. temperature/pressure request only the step requested is inserted/removed. The
others remain all inserted/removed on the basis of the polarity selected.
N° 1 circuit with four ventilation steps
Continuous direct step insertion
Relay OUT
Step n° 1
Step n° 2
Step n° 3
Step n° 4
Step n°1 relay out
Step N° 1
ON
Step N° 1
ON
Step N° 1
ON
Step N° 1
ON
Step n°2 relay out
Step N° 2
OFF
Step N° 2
ON
Step N° 2
ON
Step N° 2
ON
Step n°3 relay out
Step N° 3
OFF
Step N° 3
OFF
Step N° 3
ON
Step N° 3
ON
Step n°4 relay out
Step N° 4
OFF
Step N° 4
OFF
Step N° 4
OFF
Step N° 4
ON
46.3 UNIQUE OR SEPARATE CONDENSATION
FA05
Establishes the amount of condensation fan sets.
Using parameter FA05 it is possible to configure the units with 2 circuits with unique condenser.
Parameter FA05 type of condensation
0= unique condensation (1 / 2 / 3 / 4)
1= separate condensers
2= circuits unique condensation (1 – 2) / (3 – 4)
If Par FA05 = 0 and the Par. FA01 = 4 the fan outputs are in parallel
(the proportional outputs configured
as condensation control will function in parallel)
, regulation takes place:
•
in COOLING mode on maximum
between the circuits condensation temperature/pressure probes
•
in HEATING mode (if the evaporation pump is not configured) on the minimum
between the
circuits condensation temperature/pressure probes
•
in HEATING mode (if the evaporation pump is not configured) on the minimum
between the
circuits evaporation pressure probes
WARNING:
if the Par FA01 = 2/3 and the Par FA05 = 0 the step regulation in exchange and continuous
mode will be obtained by configuring the resources of circuit n° 1 (relay outputs), using the differential of
circuit n° 1 and the fan circuit breaker alarm from the common fan circuit breaker input.
WARNING:
if Par FA01 = 2/3 and Par FA05 = 2 the step regulation in exchange or continuous mode will be
obtained by configuring:
•
the resources of circuit n° 1 (relay outlets), using the differential of circuit n° 1 for circuits n° 1 / 2 and
the ventilation circuit breaker alarm via the circuit n° 1 / 2 fan circuit breaker input.
•
the resources of circuit n° 3 (relay outlets), using the differential of circuit n° 3 for circuits n° 3 / 4 and
the ventilation circuit breaker alarm via the circuit n° 3 / 4 fan circuit breaker input.
If the par. FA05 = 1 the condensation ventilation circuits (if the probes are not configured in evaporation
pressure) in cooling and in heating mode are independent and depend on the condensation
pressures/temperatures and the status of the circuit compressors. (if the evaporation transducers are
configured in heating mode the ventilation depends on the values of the evaporation pressure and in cooling
mode on the condensation value detected in the two circuits).
If Par FA05 = 2 and the Par. FA01 = 4 circuit n° 1 and n° 2 fan outputs and circuit n° 3 and n° 4 proportional
outputs are in parallel, regulation takes place:
•
in COOLING mode on maximum
between the circuits condensation temperature/pressure probes
•
in HEATING mode (if the evaporation pump is not configured) on the minimum
between the
circuits condensation temperature/pressure probes
•
in HEATING mode (if the evaporation pump is not configured) on the minimum
between the
circuits evaporation pressure probes
