Uniflair UST500, Инструкция по эксплуатации

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UST500 CONTROL BOARD
06MC0074@00B0100
14/04/2010
53
Internal exchanger heaters for antifreeze
Internal exchanger antifreeze heaters are used in machines with a water-to-water exchanger.
Antifreeze heaters are enabled when:
•
enabled in parameter (HI00 - Enable internal exchanger heaters for antifreeze = 1)
(°°) FOR ANTIFREEZE, when configuring the machine with two internal exchanger electric heaters, only heater 1 will be activated.
•
The regulation probe can be selected in parameter HI05
•
The antifreeze setpoint can be set in parameter HI06
Settings can be done as shown in the figure;
AIn temp.
AIn probe temperature
See HI05
Heaters
Heater state
(°°) heater 1 only
Internal exchanger heaters in integrated use
In integrated use, heaters are enabled when:
•
enabled in parameter (HI02 - Enable internal exchanger heaters for integrated use = 1) (°)
•
heating mode
•
gas inversion heat pumps
N.B.: for water inversion heat pumps, see external electric heater circuit
(°) set H00=1 even when heaters are to be integrated
(°°) When configuring the machine with two internal exchanger electric heaters, configure parameter HI04 appropriately
Adjustment depends on the setpoint which is obtained by adding or subtracting a differential from the Heat setpoint, depending on the external
temperature.
Parameter HII4 Enable internal exchanger heater digital dynamic differential in integrated use determines whether it is proportional to the
external temperature or a fixed value (depending on external temperature).
Graphs for the proportional differential Diagram A (HI14=0) or the fixed one Diagram B (HI14=1) are provided below.
Diagram A
Differential proportional to the change in the external temperature (H14=0)
Settings during
antifreeze
Ext Temp
HI10
HI12 < 0 HI12 > 0
HI11
0
Offset
OFF
Heaters
Temp AIn
HI09
ON
HI06