Skope SKT-NZ Series User manual

SKT-NZ and SKFT-NZ
Series
Controller Manual MAN80372 Rev. 1.0 Aug. 2022
SKOPE Top Mount Fridge and Freezer
ActiveCore

Dixell XR77CH Electronic Controller
SKOPE Top Mount Fridge and Freezer
Controller Manual
MAN80372
Rev. 1.0 Aug. 2022
© 2022 SKOPE Industries Limited. All rights reserved.
SKOPE Industries Limited reserves the right to alter specifications without notice.
is a registered trademark of SKOPE Industries Limited.
SKOPE INDUSTRIES LIMITED
Head Office
PO Box 1091, Christchurch
New Zealand
A.B.N. 73 374 418 306
AU: 1800 121 535
NZ: 0800 947 5673
E-mail: [email protected]
Website: www.skope.com

SKOPE SKT-NZ and SKFT-NZ Series
Controller Manual iii
Contents
1 Overview
2 Faceplate
3 Procedures
Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Manual Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Temperature Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Temperature Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Controller Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
On/Off Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
4 Alarms

1
SKOPE SKT-NZ and SKFT-NZ Series
Overview
Controller Manual
1 Overview
The cabinet is fitted with a Dixell XR77CH electronic controller, which is pre-programmed.
SKOPE does not recommend changing the settings unless it is absolutely necessary. To
ensure efficient operation, the controller automatically forces a defrost cycle when required.
The electronic controller controls and displays the internal cabinet temperature, and signals
temperature and equipment alarms.
For general operation, if you have a cabinet with:
• a single refrigeration cartridge and electronic controller, you do not need to set anything
up, or do any extra programming.
• twin refrigeration cartridges and two electronic controllers, you will need to set the real
time clocks first.
For more detailed information see:
https://climate.emerson.com/documents/xr77ch-gb-en-5220496.pdf

2
SKOPE SKT-NZ and SKFT-NZ Series
Faceplate
Controller Manual
2 Faceplate
Because the electronic controller plays such an important role, it’s helpful to know the parts of
the faceplate you may use.
Table 1: Controller faceplate
Item Function
1Light button: To switch lights on and off.
2Defrost button: To manually initiate a defrost cycle.
3Set button: To display the temperature set point, reset the highest and lowest recorded temperatures and change the setpoint.
4Up button: To view the highest temperature recorded inside the cabinet (since the last controller reset).
5Down button: To view the lowest temperature recorded inside the cabinet (since the last controller reset).
6On/Off button: Function disabled. Contact SKOPE to enable.
7Defrost cycle indicator: On during defrost cycles. Flashes during drip time (e.g. after a defrost cycle).
8Light indicator: On when the light is on.
9Compressor indicator: On when the compressor is on. Flashes when compressor start is pending.
10 Fan indicator: On when the fans are enabled.
11 Display indicator: Displays temperature and messages.
12 Continuous cycle indicator: On during continuous cycle.
13 Eco indicator: Energy saving enabled.
14 Auxiliary indicator: On when the auxiliary relay is on.
15 Clock indicator: On when the real time clock is enabled.
16 Alarm indicator: On when an alarm is occurring.
1
2
3
4
5
6
79 10 118
12 14 15
13 16

3
SKOPE SKT-NZ and SKFT-NZ Series
Procedures
Controller Manual
3 Procedures
Real Time
Clock
The SKFT1500NZ has two refrigeration cartridges and a controller for each cartridge, which
are kept in sync with a real time clock. You will need to set the real time clock for each
controller.
Manual
Defrost
A manual defrost may be necessary if the door is left open for an extended period of time, or
during abnormal environmental conditions.
To start a manual defrost, push and hold the Defrost button for more than two seconds.
Temperature
Records
The electronic controller records the highest and lowest internal temperatures of the cabinet.
Temperature
Setpoint
The cabinet temperature setpoint is set at the factory and can be adjusted if necessary.
SKOPE does not recommend changing the setpoint unless it is absolutely necessary, and then
only by small increments at a time.
Procedure 1: To set the real time clock
1. Enter the Pr1 programming menu by pushing both the Set and Down buttons for 3 seconds.
The rtC parameter is displayed.
2. Push the Set button to enter the real time clock menu.
The Hur (hour) parameter is displayed.
3. Push the Set button and then set current hour using the Up and Down buttons.
4. Confirm the value by pushing Set button.
5. Repeat the procedure to set the Min (minutes) and dAy (day) parameters.
6. Exit by pushing the Set and Up buttons together.
Procedure 2: To view the highest temperature recorded
1. Press and release the Up button. The highest temperature is displayed.
Procedure 3: To view the lowest temperature recorded
1. Press and release the Down button. The lowest temperature is displayed.
Procedure 4: To reset the temperature records
1. Press and release the Up or Down button to display the highest or lowest temperature recorded.
2. While the highest or lowest recorded temperature is displayed, press and hold the Set button for
more than three seconds.
rSt is displayed, then starts blinking, and the temperature records are reset.
Procedure 5: To view the temperature setpoint
1. Press and release the Set button. The setpoint is displayed.

4
SKOPE SKT-NZ and SKFT-NZ Series
Procedures
Controller Manual
Controller
Lock
The electronic controller buttons can be locked to prevent access to the controller settings. It
is still possible to view the setpoint and temperature records when the electronic controller is
locked.
On/Off
Function
When the on/off function is enabled, the cabinet can be switched off and on by pressing and
holding the On/Off button on the controller faceplate for 1 second. Contact a SKOPE service
agent if this function is required.
When switched off, the electronic controller enters standby mode and turns off the refrigeration
system. The faceplate displays OFF.
Ensure compliance with all food safety requirements. If perishable product is being stored in
the cabinet, don’t turn it off.
Procedure 6: To adjust the temperature setpoint
1. Push the Set button for more than 2 seconds to change the setpoint.
The setpoint will be displayed, and the “°C” or “°F” LED will start blinking.
2. Use the Up and Down buttons within 10 seconds to adjust the setpoint.
3. Press and release the Set button or wait ten seconds to confirm the new setpoint value.
Procedure 7: To lock the electronic controller
1. Press the Up and Down buttons simultaneously for more than three seconds. The controller
displays PoF and the controller is locked.
Procedure 8: To unlock the electronic controller
1. Press the Up and Down buttons simultaneously for more than three seconds. The controller
displays Pon and the controller is unlocked.

5
SKOPE SKT-NZ and SKFT-NZ Series
Alarms
Controller Manual
4 Alarms
The following table explains messages that the electronic controller displays and related
alarms. Alarms signal unexpected operational changes in the cabinet and stop when action is
taken to resolve the problem.
Note that cabinets with twin refrigeration cartridges have two electronic controllers, and an
alarm might be coming from the unseen controller.
Table 2: Controller alarms
Code Alarm Action
P1
Probe alarm.
Press any button on the electronic controller to reset the alarm.
If the alarm persists, arrange a service call.
P2
P3
P4
HA Maximum temperature
alarm
Press any button on the controller to mute the audible alarm.
The alarm will stop once the temperature has reached an acceptable level.
Check the installation meets specification. Ensure there are no blockages in front or
behind the cabinet, and that the cabinet is installed within the operating temperature
range.
If the alarm persists, arrange a service call.
LA Minimum temperature alarm
HA2 Condenser high temperature
alarm
Press any button on the controller to mute the audible alarm.
The alarm will stop once the condenser temperature has reached an acceptable level.
Clean the condenser coil. Check the installation meets specification. Ensure there are no
blockages in front or behind the cabinet, and that the cabinet is installed within the
operating temperature range.
If the alarm persists, arrange a service call.
LA2 Condenser low temperature
alarm
Press any button on the controller to mute the audible alarm.
The alarm will stop once the condenser temperature has reached an acceptable level.
Clean the condenser coil. Check the installation meets the guidelines. Ensure there are
no blockages in front or behind the cabinet, and that the cabinet is installed within the
operating temperature range.
If the alarm persists, arrange a service call.
dA Door open Close the door.
EA External alarm
Press any button on the electronic controller to reset the alarm.
If the alarm persists, arrange a service call.
CA External alarm or pressure
switch alarm
Press any button on the electronic controller to reset the alarm.
If the alarm persists, arrange a service call.
rtC Real time clock alarm Only applicable when the real time clock is enabled.
Press any button on the electronic controller to reset the alarm.
If the alarm persists, arrange a service call.
rtF Real time clock board alarm

SKOPE Contacts
SKOPE Industries Limited
ABN: 73 374 418 306
AU: 1800 121 535
NZ: 0800 947 5673
[email protected]
www.skope.com