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
35/84
Setpoint/Sub-Menu
Default
Range
Description
HR Lwt Res=
0Ohm
340-300kOhm
Resistance of the Heat Recovery LWT sensor
SwBox Tmp Res=
0Ohm
340-300kOhm
Resistance of the Switch Box Temperature sensor
Common LWT Res=
0Ohm
340-300kOhm
Resistance of the Common LWT sensor
LWT Reset Curr=
0mA
3-21mA
Current input for the Setpoint Reset
Dem Lim Curr=
0mA
3-21mA
Current input for the Demand Limit
Flex Curr Lim=
0mA
3-21mA
Current input for the Flex Current Limit
Load PD Raw=
0V-0mA
0-10V/4-20mA
Voltage/Current input for the Load Pressure Drop sensor
Evap PD Volt=
0V
0-10V
Voltage Input for the Evaporator Pressure Drop sensor
Unit Alm Outpt=
Off
Off/On
Status of the General Alarm relay
C1 Alm Outpt=
Off
Off/On
Status of the Circuit #1 Alarm relay
C2 Alm Outpt=
Off
Off/On
Status of the Circuit #2 Alarm relay
Evp Pmp1 Outpt=
Off
Off/On
Status of the Evaporator Pump #1 relay
Evp Pmp2 Outpt=
Off
Off/On
Status of the Evaporator Pump #2 relay
HR Pmp Outpt=
Off
Off/On
Status of the Heat Recovery Pump relay
Bypass Vlv Outpt=
0V
0-10V
Status of the Bypass Valve
Pump Speed Outpt=
0V
0-10V
Voltage signal for the pump VFD
4.12.3.2 Circuit #1 (Circuit #2 if present)
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 Circuit #1 (or Circuit #2 if present and depending on the link followed). 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 Liq Inj=
Off
Off/On
Test of the Liquid Injection SV
Test Economizr=
Off
Off/On
Test of the Economizer SV
Test Fan 1=
Off
Off/On
Test of the Fan Output #1
Test Fan 2=
Off
Off/On
Test of the Fan Output #2
Test Fan 3=
Off
Off/On
Test of the Fan Output #3
Test Fan 4=
Off
Off/On
Test of the Fan Output #4
Test Fan 5=
Off
Off/On
Test of the Fan Output #5
Test Fan 6=
Off
Off/On
Test of the Fan Output #6
Test Var VR=
Off
Off/On
Test of VR3 slide position
Test VR Load=
Off
Off/On
Test of VR Load relay (VR3)
Test VR Unld=
Off
Off/On
Test of VR Unload relay (VR2)
Test VFD Speed=
0%
0-100%
Test of the VFD for fans
Test EXV Pos=
0%
0-100%
Test of the Expansion Valve movements
Test EcoEXV Pos=
0%
0-100%
Test Of the Economizer Expansion Valve movements
Input/Output Values
Cir Sw Inpt=
Off
Off/On
Status of the Circuit Enable switch
Mhp Sw Inpt=
Off
Off/On
Status of the Mechanical High Pressure switch
Gas Leak Inpt=
Off
Off/On
Status of the Gas Leak switch
Fan Alm Inpt=
Off
Off/On
Status of the Fan Alarm Input
Evap Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Evaporator Pressure
Cond Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Condenser Pressure
Oil Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Oil Pressure
Gas Leak Inpt=
0.0V
0.0-10.0V
Input voltage for the Gas Leak sensor
Econ Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Economizer Pressure
Econ Temp Res=
0.0Ohm
340-300kOhm
Resistance of the Economizer Temp sensor
Suct Temp Res=
0.0Ohm
340-300kOhm
Resistance of the Suction Temp sensor
Disc Temp Res=
0.0Ohm
340-300kOhm
Resistance of the Discharge Temp sensor
Strtr Outpt=
Off
Off/On
Status of the Inverter start command
Liq Inj Outpt=
Off
Off/On
Status of the Liquid Line SV relay
Econ Sv Outpt=
Off
Off/On
Status of the Economizer SV relay
Fan 1 Outpt=
Off
Off/On
Status of the Fan Output #1
Fan 2 Outpt=
Off
Off/On
Status of the Fan Output #2
Fan 3 Outpt=
Off
Off/On
Status of the Fan Output #3
Fan 4 Outpt=
Off
Off/On
Status of the Fan Output #4
Fan Vfd Outpt=
0.0V
0-10.0V
Output voltage to the fan VFD
Variable VR St
Off(VR2)
Off(VR2)/On(VR3)
Variable VR slide position (VR2, VR3)