Dometic Basic Chiller Control Instructions De Montage page 5

Input
Refrigerant low - low side pressure limit (op-
tional)
7.3.3 Relay outputs
Output
COMP – Compressor
CWP – Chill Water Pump
SWP – Sea Water Pump
RV – Reversing Valve
EH – Electric Heat
Fault
7.4 Default parameters
Parameter Value
Cool Control Setpoint
Heat Control Setpoint
Seawater Pump Control
Factory settings
Control Temp Mode
Control Value
Modules
Low Voltage Detection
Heat Sup Temp
Cond Refrg Temp
Electric Heat
Electric Heat Flow Switch
Load Shedding
Mode Switch
SW Pump Current
CW Pump Current
Compressor Current
Expansion Valve
Refrigerant
SH Control
Discharge Pressure
Suction Pressure
Temp Sensor Curve
Description
The PLC will immediately acknowledge an
open circuit if the low pressure switch is
tripped and de-energize the compressor. It
will record and display low pressure fault on
the alarm screen. If the PLC detects a low pres-
sure fault during operation, a LP fault will be
displayed and recorded. The PLC will not al-
low the compressor relay to be re-energized,
until switch is in the closed position.
Description
PLC COMP output will give switched power
to the contactor coil to enable the compressor
normal operation.
PLC CWP output will give switched power to
the contactor coils for the chilled water pump.
PLC SWP output will give switched power to
the contactor coils for the sea water pump.
PLC RV output will give switched power to the
coils for the reversing valve.
PLC EH output will give switched power to the
contactor coils for the electric heat.
Provides a Normally Open (NO) contact point.
Any fault condition will close the NO contact.
This output can be used to power a light, re-
lay, or interface to a ship's monitoring system.
The output on this terminal is 230 V .
Data type
45 °F
110 °F
By demand
CCW Return
Average
1
No
No
No
Yes
Yes
Yes
Yes
No
No
No
Yes
R410a
T/T
No
Yes
Parameter Value
CW Return
CW Supply
Electric Heat Setup
On Delay
Delay Btw Heaters
Rotation Hours
Chilled Water Pump Settings
Flow Prove Delay
Off Delay
Seawater Pump Settings
Off Delay
Control By demand
Compressor Setup
Mode Cool+Heat
Comp Type
Pump-Comp Delay
Min-On
Min-Off
Delay Btw Comps
Rotation Hours
RV Delay Time
RV Toggle On
RV Toggle Off
Supply High Temp
Differential
Supply Low Temp
Differential
Supply Return
Differential
Alarm Delay
Alarm Setup
High Pressure Sensor SP
Low Pressure Sensor
Heat Mode
Heat Mode
Alarm Delay
CW Flow Switch
Retrys
Set Disable
High Pressure Switch
Retrys
Low Pressure Switch
Retrys
Set Disable
CW Supply High Temp
Retrys
Set Disable
Data type
10kΩ
10 Seconds
30 Seconds
0 Hours
10 Seconds
5 Seconds
5 Seconds
1 Stage
10 Seconds
10 Seconds
10 Seconds
30 Seconds
1 Hour
5 Seconds
2 Seconds
2 Seconds
125 °F
20 °F
38 °F
4 °F
14 °F
120 Seconds
550 PSI
78 PSI
60 PSI
10 Seconds
3/30 1/min
20 Seconds
3/30 1/min
3/30 1/min
20 Seconds
3/0 1/min
20 Seconds
EN
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