Controller Operation 7-11
• Low Speed Cooling Check: Second cooling test ensures that unit can cycle between Heat and Cool modes.
• Full Modulation Capacity Check (Modulation Option Only): Checks ability of modulation valve to fully close.
• No Modulation Capacity Check (Modulation Option Only): Checks ability of modulation valve to fully open.
Unit Self-Check Report
When the Unit Self-Check is complete, the controller displays the results:
• PASS: Unit passed the test.
• CHEC: Alarm conditions (check or stored alarms) were detected during the test. A dash (-) is displayed in front of these alarms
on the controller display to indicated that they were detected during a Unit Self-Check test.
• FAIL: Shutdown alarm conditions were detected during the test and the controller stopped the unit to prevent possible
damage. The Unit Self Check test was NOT completed.
MULTI-TEMP REMOTE CONTROL PANEL
The Multi-temp remote control panel connects to the Multi-Temp MT µP-IV controller so the unit can be operated from a remote
location. The remote control panel provides the following functions:
• Start and stop the host unit (Zone 1)
• Start and stop the remote evaporators (Zone 2 and Zone 3)
• Adjust the setpoint of each zone (compartment)
WARNING: The unit may START automatically AT ANY TIME when the CYCLE-SENTRY symbol is visible in the control
panel display. Make sure to press the ZONE 1 OFF key before opening unit doors or inspecting any part of the unit.
NOTE: Refer to the Multi-Temp MT µP-IV Controller Operation and Diagnosis Manual for complete operation and
diagnosis information on Multi-Temp remote control panel.
Display Symbols for Multi-Temp Remote Control
Panel
1. Cool Mode or Heat Mode (Cool: Thermometer with Arrow
Pointing Down; Heat: Thermometer with Arrow Pointing Up)
2. Temperature Display (Upper Display)
3. CYCLE-SENTRY Mode
4. Alarm Symbol
5. Electric Standby Mode
6. Low Speed Mode
7. Setpoint Symbol
8. Setpoint Display (Lower Display)
9. ZONE Symbols
10. Defrost Mode
11. Test Symbol (Appears during remote panel test only)
To Next Page
Loading...
Need help?
General
