Air and Water cooled inverter chillers and heat pump
D-EOMZC00105-17EN
Operation Manual
34/84
EWAD TZ - EWAD TZ B -EWWD VZ
Air and Water cooled inverter chillers and
heat pump
Setpoint/Sub-Menu
Default
Range
Description
Evap Pressure=
Evaporator Pressure current reading (includes the offset)
Evp Pr Offset=
0.0kPa
Evaporator Pressure offset
Cond Pressure=
Condenser Pressure current reading (includes the offset)
Cnd Pr Offset=
0.0kPa
Condenser Pressure offset
Oil Pressure=
Oil Pressure current reading (includes the offset)
Oil Pr Offset=
0.0kPa
Oil Pressure offset
Suction Temp=
Suction Temperature current reading (includes the offset)
Suction Offset=
0.0°C
Suction Temperature offset
Discharge Temp=
Discharge Temperature current reading (includes the offset)
Disch Offset=
0.0°C
Discharge Temperature offset
Econ Pressure=
Economizer Pressure current reading (includes the offset)
Eco Pr Offset=
0.0kPa
Economizer Pressure offset
Econ Temp=
Economizer Temperature current reading (includes the offset)
Eco Tmp Offset=
0.0°C
Economizer Temperature offset
Calibrations of the Evaporator Pressure and Suction Temperature are mandatory for the applications with
negative water temperature setpoints. These calibrations have to be performed with proper gauge and
thermometer.
An improper calibration of the two instruments may generate limitation of the operations, alarms and even
damages to components.
4.12.3 Manual Control
This page contains links to other sub-pages where all the actuators can be tested, the raw values of the
readings of each sensor or transducer can be checked, the status of all the digital inputs verified and the status
of all the digital output checked.
Setpoint/Sub-Menu
Default
Range
Description
Unit
Acutators and sensors for the common parts (Unit)
Circuit #1
Acutators and sensors for Circuit #1
Circuit #2
Acutators and sensors for Circuit #2
4.12.3.1 Unit
This page contains all the test point, status of the digital inputs, status of the digital output and raw value of the
analog inputs associated to the Unit
. To activate the test point it’s required to set the Available Modes to Test
(see section 4.8) and this requires the Unit to be disabled.
Setpoint/Sub-Menu
Default
Range
Description
Test Unit Alarm Out=
Off
Off/On
Test of the General Alarm relay output
Test C1 Alarm Out=
Off
Off/On
Test of the Circuit #1 Alarm relay output
Test C2 Alarm Out=
Off
Off/On
Test of the Circuit #2 Alarm relay output
Test Evap Pump 1=
Off
Off/On
Test of the Evaporator Pump #1
Test Evap Pump 2=
Off
Off/On
Test of the Evaporator Pump #2
Test HR Pmp=
Off
Off/On
Test of the Heat Recovery Pump
Test Bypass Vlv=
Off
Off/On
Test of the Bypass Valve
Test Pmp Spd=
0%
0-100%
Test of the Evaporator Pump Speed
Input/Output Values
Off/On
Unit Sw Inpt=
Off
Off/On
Status of the Unit Switch
Estop Inpt=
Off
Off/On
Status of the Emergency Stop button
PVM Inpt=
Off
Off/On
Status of Phase Voltage monitor, Under-Over voltage protection or Ground
Fault protection (check option installed)
Evap Flow Inpt=
Off
Off/On
Status of the Evaporator Flow switch
Ext Alm Inpt=
Off
Off/On
Status of the External Alarm input
CurrLm En Inpt=
Off
Off/On
Status of the Current Limit enable switch (optional)
Dbl Spt Inpt=
Off
Off/On
Status of the Double Setpoint switch
Dbl Speed Inpt=
Off
Off/On
Status of the pump Double Speed Switch
RR Unlock Inpt=
Off
Off/On
Status of the Rapid Restart enable switch (optional)
HR Switch Inpt=
Off
Off/On
Status of the Heat Recovery Switch input
Loc Bas Inpt=
Off
Off/On
Status of the Local Network Switch input
Battery Inpt=
Off
Off/On
Status of the Battery Mode input
Evp LWT Res=
0Ohm
340-300kOhm
Resistance of the Evaporator LWT sensor
Evp EWT Res=
0Ohm
340-300kOhm
Resistance of the Evaporator EWT sensor
OA Temp Res=
0Ohm
340-300kOhm
Resistance of the OAT sensor
HR Ewt Res=
0Ohm
340-300kOhm
Resistance of the Heat Recovery EWT sensor