Daikin EWWH455DZXSA2 Инструкция по эксплуатации онлайн [25/47] 533222

Daikin EWWH455DZXSA2 Инструкция по эксплуатации онлайн [25/47] 533222
EWWD_DZ EWWH_DZ
D-EOMWC01405-18EN
25/47
Parameter
Description
Unit Capacity
Displays current unit capacity
Demand Limit En
Enables demand limit
Demand Limit
Displays active demand limit
5.1.4.2 Current Limit (Optional)
Current limit function allows to control unit power consumption taking current drawn below a specific limit. Starting from
the Current Limit Setpoint defined through the HMI or BAS communication, user can decrease the real limit using an
external 4-20mA signal as indicate in the graph below. With 20 mA real current limit is set to Current Limit Setpoint, whereas
with 4 mA signal the unit is unloaded until minimum capacity.
5.1.4.3 Setpoint Reset
The setpoint reset function overrides the chilled water temperature selected through the interface, when certain
circumstances occur. This feature helps in reducing energy consumption optimizing comfort as well. Three different control
strategies can be selected:
Setpoint Reset by Outside Air Temperature (OAT)
Setpoint Reset by an external signal (4-20mA)
Setpoint Reset by Evaporator ΔT (Return)
The following setpoints are available through this menu:
Description
Set the Setpoint Reset mode (None, 4-20 mA, Return, OAT)
Max Setpoint Reset (valid for all active modes)
Used on Setpoint Reset by Evaporator DT
See Setpoint Reset by OAT Reset
See Setpoint Reset by OAT Reset
5.1.4.4 Setpoint Reset by External 4-20 mA Signal
The active setpoint is calculated applying a correction based on an external 4-20mA signal. 4 mA corresponds to 0°C
correction, while 20 mA corresponds to a correction of the active setpoint as set in Max Reset (MR).
Capacity Limit
[%]
Minimum
Capacity
Maximum
Capacity
20
4
Demand Limit
[mA]
Current
Limit [A]
Flexible
Current
Limit [mA]
4
20
Current Limit
Setpoint

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