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XTE 802 Series Walk-In-Cabinet (WIC) Description & Installation Manual (631-205-434)
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Rev. D
114
Controller
General
Operation of the DAC and the air conditioner in the WIC is managed by the controller. Refer to the controller
manufacturer documentation for operating instructions. The most current version of this manual can be found
at https://www.airxcel.com/marvair.
LCD Message Display
The two-line LCD display provides basic status information for controller. The contents of each line is
dependent on the controller conditions and are determined as shown in
Table 4:
LCD Message Display Line Definitions
Upper Line
Alternates every five seconds between the current indoor temperature and
relative humidity and the average temperature and relative humidity over the
last 24 hours. A “??” indicates that the value from the sensor is bad and that
either the sensor is faulty or not connected properly.
Lower Line
(no active
alarms)
Displays outdoor temperature and relative humidity. If the Wi-Fi is OFF and
the Wi-Fi pushbutton is pressed, displays “Wifi On”. If the Wi-Fi is ON and the
Wi-Fi pushbutton is pressed, reverts to outdoor temperature and relative
humidity.
Lower Line
(active
alarms)
Displays the Wi-Fi connection status (“Wifi On” or “Wifi Off”) followed by “#
alarms” where # is the number of active alarms.
Connecting to the Controller via a Smart Phone or Laptop
The controller is equipped with an integral Wi-Fi hot spot that provides access to the controller web pages from
a smart phone or laptop. By default the Wi-Fi hot spot is disabled. To enable the hot spot for a period of 30
minutes, press the Wi-Fi enable pushbutton located on the bottom of the controller enclosure.
Wait for the LCD message display to indicate that the Wi-Fi is ON. From a smart phone or laptop, choose the
Wi-Fi connection settings screen. Select the “ngcl-wifi” network and, when prompted, enter “coollinks” into the
WPA2 password field, then select Join. The smart phone or laptop should now be connected to the controller.
See
NOTE!
Note that for controllers manufactured prior to November 2018, the WPA2 password is
“prismsystems” rather than “coollinks”. However, if these controllers are updated the password will
change automatically when the software update is complete. Entry of the password is only required for
the first connection to the network. Subsequent connections will use the cached password so that the
technician only has to select the “ngcl-wifi” network to automatically connect.
After enabling and connecting to the “ngcl-wifi” network, open a web browser (Internet Explorer, Firefox,
Chrome, etc.) and type www.coollinks.com in the address window. The controller main web page displays.
From the main web page you can determine the status of the system, manually control the HVAC equipment,
review the alarm information, review and upload event logs, and download software updates.
