Air and Water cooled inverter chillers and heat pump
EWAD TZ - EWAD TZ B - EWWD VZ
Air and Water cooled inverter chillers
and heat pump
D-EOMZC00105-17EN
Operation Manual
23/84
Setpoint/Sub-Menu
Default
Range
Description
TZ / TZB
VZ
Cond Pmp 1 Hrs=
N/A
0h
Running Hours Condenser Pump 1 (if present)
Cond Pmp 2 Hrs=
N/A
0h
Running Hours Condenser Pump 2 (if present)
Speed 2=
60%
N/A
0-100%
Speed when the input Double Speed Switch is close
Thermo Off Speed=
50%
N/A
0-100%
Speed when there are no compressors running
Plant PD=
-
N/A
-
Actual Plant Pressure Measurements
Plant PD Sp=
0kPa
N/A
0-1000kPa
Plant Pressure Drop Setpoint
Evap PD=
-
N/A
-
Actual Evaporator Pressure Drop Measurements
Min Evap PD=
0kPa
N/A
0-1000kPa
Minimum Evaporator Pressure Drop setpoint
Hysteresis
0kPa
N/A
0-1000kPa
Hysteresis value for bypass value
Pump Speed=
-
N/A
-
Actual Pump Speed
Min Speed=
0%
N/A
0-100%
Minimum Pump Speed
Max Speed=
100%
N/A
0-100%
Maximum Pump Speed
Mode=
Auto
N/A
Auto-Manual
Pump mode
Manual Speed=
0%
N/A
0-100%
Manual Pump Speed
Sns Scale=
200kPa
N/A
0-2000kPa
Plant Pressure Drop Sensor Scale
Bypass
Open
N/A
Open,Close
Bypass valve state
4.2.5
Condenser (W/C units only)
This page contains basics settings for condensation control described in section 5.4.
Setpoint/Sub-Menu
Default
Range
Description
Cond LWT
-273.1°C
-
Present value of Condenser Leaving Water Temperature
Cond EWT
-273.1°C
-
Present value of Condenser Entering Water Temperature
Cond Target
25.0 °C
19.0…55.0 °C
Target for Condenser Leaving Water Temperature
Cond Fan Spd
0.0%
0.0…100.0%
Present value of Condenser Fan Speed
Tower Setpt 1
25.0 °C
19.0…55.0 °C
Setpoint for activation of Tower 1
Tower Setpt 1
27.0 °C
26.0…55.0 °C
Setpoint for activation of Tower 2
Tower Setpt 3
29.0 °C
28.0…55.0 °C
Setpoint for activation of Tower 3
Tower Setpt 4
31.0 °C
30.0…55.0 °C
Setpoint for activation of Tower 4
Tower Diff 1
1.5 °C
0.1…5.0 °C
Differential for deactivation of Tower 1
Tower Diff 2
1.5 °C
0.1…5.0 °C
Differential for deactivation of Tower 1
Tower Diff 3
1.5 °C
0.1…5.0 °C
Differential for deactivation of Tower 1
Tower Diff 4
1.5 °C
0.1…5.0 °C
Differential for deactivation of Tower 1
Min Vfd Sp
10.0%
0.0…49.0 %
Setpoint for minimum percentage of Vfd Speed
Max Vfs Sp
100.0%
55.0…100.0%
Setpoint for maximum percentage of Vfd Speed
PID Prop Gain
10.0
0.0…50.0
Proportional Gain of PID condensation controller
PID Der Time
1s
0...180s
Derivative Time of PID condensation controller
PID Int Time
600s
0…600s
Integral Time of PID condensation controller
Vfd Manual Speed
20.0%
0.0…100.0%
Setpoint for Vfd manual speed
4.2.6
Press Fan (W/C units only)
Setpoint/Sub-Menu
Default
Range
Description
Internal Fan
Enable
Disable, Enable
Enable/Disable the pressurization fan internal to the unit switchbox.
Flamablty Lim
23.0 °C
-
Present value of Flammability limit
4.2.7
Master/Slave
All data and parameters available in this sub-menus are related to the Master Slave function. Refer to Master
Slave manual for more details.
Setpoint/Sub-
Menu
Default
Range
Description
Data
-
Submenu Data. This link is available only on the Master unit
Options
-
Submenu Options. This link is available only on the Master unit
Thermostat Ctrl
-
Submenu Thermostat Ctrl. This link is available only on the Master unit
Timers
-
Submenu Timers. This link is available only on the Master unit
Standby Chiller
-
Submenu Standby Chiller. This link is available only on the Master unit
Disconnect Unit
No
No,Yes
Parameter to disconnect the unit by the Master Slave system.
When this parameter is set to Yes the unit follows all local settings.