Emerson Copeland EazyCool ZX Series - 3.3 Refrigeration connections

C6.1.6/0613-0915/E 13
The following parameters need to be changed to control a cooling cabinet or a cold room with a
temperature sensor:
Parameter
Description
Factory settings /
Range
Recommended setting / Comments
A19
Probe 7
configuration
0 = Not used = NU
Thermostat temp (NTC10K) = 2 = TMT or
Evaporator temp (NTC10K) = 5 = EPT
C05
Compressor
regulation probe
selection
1 = Suction pressure
probe = SUP
Case temperature = 2 = CST
G01
Case temperature
probe selection
0 = Not used = NU
Thermostat temperature = 4 = TMT or
Evaporator temperature = 5 = EPT
G02
Setpoint case
temperature
2°C
Choose setpoint according to requirements
of cooled goods
G03
Position
differential case
temperature
1K / 0.1 – 25.5K
Setpoint G02 + positive differential G03
results in cut-out value for compressor
G04
Case temperature
lower limit G02
-10°C / -40°C to G05
Define limits to avoid wrong operator
settings for G02
G05
Case temperature
upper limit G02
+15°C / G04 to 110°C
Define limits to avoid wrong operator
settings for G02
G06
Emergency run
On-time
2 min / 0 to 255 min
In case of probe failure the compressor will
be cycled on time based on G06 & G07
G07
Emergency run
Off-Time
1 min / 0 to 255 min
In case of probe failure the compressor will
be cycled on time based on G06 & G07
Table 10: External temperature sensor – Parameters
Please check that the setting for G56 is "NO" (means no Solenoid valve in the liquid line) and no
additional digital inputs are configured (Digital Input DI3; Parameter R07 has to be "not used" =
NU = 0).
Defrost
The XCM-25D is able to control defrost on evaporators. The controller can handle electrical
defrost or natural / fan defrost (select by G17). The defrost probe (G12) provides the XCM-25D
with the information about the temperatures in the evaporator.
The intervals between the defrost cycles are controlled by parameter G23. This can be done by
means of the integrated real time clock or by fixed intervals.
Parameter
Description
Factory settings /
Range
Recommended setting / Comments
A19
Probe 7
configuration
0 = Not used = NU
Evaporator temp (NTC10K) = 5 = EPT
G12
Defrost probe
selection
0 = Not used = NU
5 = Evaporator temperature sensor = EPT
G17*
Defrost type
0 = Electrical = EL
0 = Electrical = EL; 1 = Hot gas defrost = IN; 2
= Natural defrost (pulse defrost) = PLS
G18
Interval between
defrost cycles
4 hours
0 – 120 hours range; adjust to individual
requirements
G19
Maximum duration
of defrost
20 minutes
0 – 255 minutes; adjust to individual
requirements
G20
Duration of pulse
defrost
15 minutes
0 – G19
G21
Defrost
termination
temperature
10°C
-40°C – 110°C
G22
Defrost delay time
15 minutes
0 – 255 minutes
Safety
instructions
Product
description
Installation
Starting up &
operation
Maintenance &
repair
Certification &
approval
Dismantling &
disposal