Emerson Copeland EazyCool ZXME020E - Figure 8: Prearranged Additional Connections

C6.1.6/0117-1017/E 13
Component
Description
Prearranged terminals /
Wiring diagram
S2
Low pressure switch, optional; can be
ordered factory-installed.
Terminals: X1.2 / X1.7
Y3
Solenoid valve liquid line (not available on
ZXDE units)
Terminals: X1.N / X1.8
S3
Room thermostat for pump-down or direct
control
Terminals: X1.9 / X1.10
Alarm contact
Sensor for evaporator or room
Terminals: X1.11 / X1.12
Sensor B7
Sensor for evaporator or room (NTC10kΩ)
Terminals: X1.13 / X1.14
Table 8: Prearranged additional connections
Figure 8: Prearranged additional connections
NOTE: Depending on the required functionalities additional components might be necessary.
Please contact your local Application Engineering representative.
NOTE: Check the current limitations given by the controller relays.
NOTE: The solenoid valve function is not available on ZXDE units.
Digital output
Specifications
DO1, DO2 and DO3
Relay SPDT 16A, 250V AC
DO3
Relay SPST 8A, 250V AC
DO4 and DO5
Relay SPST 5A, 250V AC
Table 9: Digital output specifications
Temperature control by means of an external room thermostat (not available on ZXDE units)
The temperature of a cold room or cooling cabinet can be controlled by means of an external room
thermostat (Digital Input DI3, parameter R07).
The parameters that must be changed to control a cooling cabinet or a cold room with a room
thermostat are listed in Table 10 below.
With these settings the controller will switch the compressor according to the status of the connected
device (room thermostat):
▪ if the input is closed, turn the compressor on (On-Off-compressor)
▪ if the input is open, turn the compressor off (On-Off-compressor)
Safety
instructions
Product
description
Installation
Starting up &
operation
Maintenance &
repair
Certification &
approval
Dismantling &
disposal