EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ-
- R410A - Air-cooled scroll chillers
EWAQ-
- R410A - Air-cooled scroll chillers
EWYQ-
- R410A - Air-cooled scroll heat pumps
Air and Water cooled scroll chillers & heat pump
Operation
Manual
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
Operation Manual
39
4.9.5 Unit Manual Control
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 4.6).
Setpoint/Sub-Menu
Defaul
t
Range
Description
Test Unit Alarm=
Off
Off/On
Test of the General 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 Cond Pump 1=
Off
Off/On
Test of the Condenser Pump #1
Test Cond Pump 2=
Off
Off/On
Test of the Condenser Pump #2
Test Cond Valve Out=
0.0%
0…100%
Test Valve output for condensing control
Test VFD Out=
0.0%
0…100%
Test VFD output for condensing control
Input/Output Values
Unit Sw Inpt=
Off
Off/On
Status of the Unit Switch
Dbl Sp Inpt=
Off
Off/On
Status of the Double Setpoint
Evap Flow Inpt=
Off
Off/On
Status of the Evaporator Flow switch
Cond Flow Inpt=
Off
Off/On
Status of the Condenser Flow switch
HP Switch Inpt=
Off
Off/On
Status of the Heat Pump switch
PVM/GFP Inpt=
Off
Off/On
Status of Phase Voltage monitor, Under-Over voltage protection or Ground
Fault protection (check option installed)
Ext Alm Inpt=
Off
Off/On
Status of the External Alarm
Unit Alm Outpt=
Off
Off/On
Status of the General 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
Cnd Pmp1 Outpt=
Off
Off/On
Status of the Condenser Pump #1 relay
Cnd Pmp2 Outpt=
Off
Off/On
Status of the Condenser Pump #2 relay
Evap EWT Res=
0Ohm
340-300kOhm
Resistance of the Evap EWT sensor
Evap LWT Res=
0Ohm
340-300kOhm
Resistance of the Evap LWT sensor
Cond EWT Res=
0Ohm
340-300kOhm
Resistance of the Cond LWT sensor
Cond LWT Res=
0Ohm
340-300kOhm
Resistance of the Cond LWT sensor
Dem Lim Curr=
0mA
3-21mA
Current input for the Demand Limit
LWT Reset Curr=
0mA
3-21mA
Current input for the Setpoint Reset
Cond Valve Outpt=
0.0V
0.0-10.0V
Voltage output for the valve of the condensing control
VFD Outpt=
0.0V
0.0-10.0V
Voltage output for the VFD of the condensing control
4.9.6 Circuit 1 Manual Control
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 4.6).
Setpoint/Sub-
Menu
Default
Range
Description
Test Comp 1=
Off
Off,On
Test of the compressor 1 (first compressor of the circuit number 1)
Test Comp 3=
Off
Off,On
Test of the compressor 3 (second compressor of the circuit number 1)
Test 4 Way Valve=
Off
Off,On
Test of the 4 way valve
Test VFD=
Off
Off,On
Test of the VFD enable.
Test EXV Pos=
0.0%
0-100%
Test of the Expansion Valve movements
Test Cond Valve
Out=
0.0%
0-100%
Test Valve output for condensing control
Test VFD Out=
0.0%
0-100%
Test VFD output for condensing control
Input/Output Values
Evap Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Evap Pressure
Cond Pr Inpt=
0.0V
0.4-4.6V
Input voltage for the Cond Pressure
Suct Temp Res=
0Ohm
340-300kOhm
Resistance of the Suction Temp sensor
Comp 1 Output=
Off
Off/On
Status of the compressor 1 (first compressor of the circuit number 1)
Comp 3 Output
Off
Off/On
Status of the compressor 3 (second compressor of the circuit number 1)
Cond Valve Outpt=
0.0V
0.0-10.0V
Voltage output for the valve of the condensing control
