Service Guide
Configuration
AK-CC 550A to AK-SM 800
ADAP-KOOL® Refrigeration Control System
Service Guide | AK-CC 550A to AK-SM 800 Configuration
Initial Setup/Checks @ Case Controller
1. Identify type of communication to be used for comm loop to
controllers (Modbus or LON). This is determined by plug used
for comm wiring at AK-SM 800. See below for example.
Wiring at AK-SM 850/880
Wiring at AK-CC 550A
LON wiring Modbus
wiring
2. With power applied to AK-CC 550A, set parameter o03 (address)
and o61 (application). To set:
a. Hold top button in for 5 seconds until ‘r01’ is displayed, then
use top/bottom buttons to scroll to each parameter.
b. Press middle button on parameter to view value, top/bottom
to change to desired value, and middle button again to set.
c. Parameter o03 is unique to each controller, and parameter
o61 is typically set to ‘2’.
For LON wiring,
comm card should
also be installed
behind cover
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Service Guide | AK-CC 550A to AK-SM 800 Configuration
Setup at System Manager
*This section is detailed with the assumption that an existing
program is in place including cases and addresses.
1. At system manager, press Menu button and select ‘2’ for
Network Nodes
2. Confirm proper channel (Modbus or LON) is enabled at top of
screen. (refer to 1st page for information on how to check which
channel you are using if needed). Once confirmed, highlight
and select line ‘Press for complete rescan’.
3. Once rescan is complete, navigate to Config Status tab to
confirm case controller is online (will need to know address).
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Service Guide | AK-CC 550A to AK-SM 800 Configuration
Downloading setpoints to AK-CC 550A
1. In AK-SM 800, navigate to
Configuration->Control->Refrigeration->Circuits->Setup>Download.
*If prompted at any point to ‘retrieve configuration from device’,
select ‘No’.
2. Select addresses of case controllers to be downloaded, so
that check mark appears next to address. Then scroll to top of
screen and select ‘Press to download to selection’. Controller will
timestamp each address after download completes successfully.
Checks for offline AK-CC 550A
1. Wiring
a. Comm wiring polarity. LON wiring is not polarity sensitive, but
MODBUS wiring is polarity sensitive.
b. Is comm loop distance > 1200m? If so, repeater should be
added.
c. Is there an EOL resistor at end of loop (120 ohms).
2. Case Controller
a. If using LON comm, has comm card been installed?
b. Does address in AK-CC 550A match address assigned in AK-
SM 800?
3. System Manager
a. Are there >120 case controllers in the program of the system
manager? If so, limit has been exceeded. Some controllers will
need to be moved to another system manager.
b. Check Duplicates tab under Network Nodes to ensure
multiple controllers have not been assigned an identical
address by mistake.
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Service Guide | AK-CC 550A to AK-SM 800 Configuration
Other Potential Issues
1. Mismatch. If AK-CC 550A status screen shows ‘Mismatch’, then
controller firmware or application differs from selection in AKSM 800. To correct:
a. Go to Network Nodes-> Scan Status and Locate Address. Note
Model listed for address. Model will confirm firmware version
and application of device. In example below, ‘-019’ indicates a
v1.9 firmware version, and ‘B’ indicates application 2 (A = 1, B
= 2, etc).
b. Go to Configuration->Refrigeration->Circuits. Under ‘Type’
tab, locate case in list and verify model matches description
from Scan Status screen (a). This will also require you to verify
selected part # is correct (084B8036 in example below). Part #
is printed on case controller.
c. If type is not a match, verify whether this is because of part #,
application, or firmware.
i. For application, verify whether selection in AK-SM 800
is wrong or AK-CC 550A. If in AK-CC 550a, go to case
controller and change parameter o61 to correct value. Then
rescan. If AK-SM 800 selection is wrong, press +/- key on
case controller type and select correct option from list.
ii. For part # or firmware, press +/- key on case controller type
and select correct option from list.
iii. If required part # or firmware is not listed, call or other tech
support resource.
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