Uniflair UST500, Инструкция по эксплуатации

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UST500 CONTROL BOARD
06MC0074@00B0100
14/04/2010
37
Temperature control differential
Temperature control differential can be enabled by configuring
tr
00=1.
The purpose of the temperature control differential is, for example, to make sure that the difference between the external temperature and the
temperature of a liquid that is being heated or cooled is always the same. To do this, the difference between the values read by probe 1 and by
probe 2 are used (temperature control value = probe 1 – probe 2); the probes used for temperature control can be selected by configuring
parameters tr14 and tr15 appropriately:
Temperature control in Cool mode -
Parameter tr14 Temperature control in Heat mode –
Parameter tr15
Configuration of probes used in the temperature control differential - see table:
Temperature control depends on the set-point
set for Cool mode and the differential value equal to
probe 1 – probe 2
Temperature control depends on the set-point
set for Heat mode and the differential value
equal to probe 1 – probe 2
COOL HEAT Value Probe 1 Probe 2
tr14
Select probe for
temperature control
differential in Cool
tr15
Select probe for
temperature control
differential in Heat
0
NTC input for internal exchanger water/air inlet
temperature
(CF12…CF15=1)
NTC input Outdoor temperature
(CF12…CF15=6)
1
NTC input for internal exchanger water/air outlet
temperature
(CF12…CF15=2)
2
NTC input for external exchanger water/air inlet
temperature
(CF12…CF15=3)
3
NTC input for external exchanger water/air outlet
temperature
(CF12…CF15=4)
Digital temperature control
Digital temperature control can be enabled by configuring
tr
00=2.
The operating mode selected and power required depend on the state of digital inputs configured for this type of temperature control.
Safety timings, settings (compressor ON delay, pump ON, ..) and alarms are normally active.
See the table below for the parameter - digital input configuration association for this function. For the full list, see the chapter entitled System
Configuration (folder Par/CF) – subchapter Configuration of Digital Inputs - Table A.
Parameters Value
CF16..CF20
CF23..CF26
±14 Remote Summer/Winter
Type 1 thermostat ±15 Power step 1 request
±16 Power step 2 request
±18 Digital input heat step 1 request
Type 2 thermostat
±19 Digital input heat step 2 request
±20 Digital input cool step 1 request
±21 Digital input cool step 2 request
Digital input configuration depends on the type of thermostat used.
N.B.:
•
If two digital inputs have been configured as request step 1 heat and step 1 cool, when activated at the same
time, a configuration error occurs;
•
If a digital input has been configured as request heat and the digital input for summer/winter is in the summer
position, a configuration error occurs;
•
Temperature control depends directly on the activation of digital inputs which must be activated in a logical
sequence. For example, power steps must be activated and deactivated in the fixed sequence 1-2 and 2-1.
Block heat pump
The block heat pump function allows energy savings by disabling the heat pump in specific operating conditions, such as:
•
when the installation is not working efficiently due to the external temperature (Block heat pump by external temperature)
•
when on account of the particular electricity supply agreement it would be useful to disable the heat pump at peak charge
times (Block heat pump with digital input)