What to do if the McQuay MicroTech II Controller battery warning alarm is blinking?
If the red MCB Error LED is blinking, indicating a battery warning alarm on your McQuay Controller, the battery should be replaced within 14 days. This will prevent complete battery failure and potential memory loss.
What happens if the McQuay MicroTech II MCB is powered up with a bad battery?
If the MCB in your McQuay Controller is powered up with a low, defective, or missing battery, the controller will restore the most recently archived data.
How to reboot McQuay Controller if MCB is defective?
If the MCB in your McQuay Controller is defective, perform a 'cold' reboot. This involves removing the MCB battery and cycling power to the controller.
What to do if McQuay MicroTech II unit does not leave Fan Only and enter the Econo or Cooling operating state?
If your McQuay Controller unit remains in Fan Only mode and won't switch to Econo or Cooling, check the Clg Status= parameter in the System menu. It should indicate “All Clg” or “Econo” for Econo mode, and “All Clg” or “Mech Clg” for Cooling mode. The unit does not enter the Econo or the Cooling operating state if the Clg Status= parameter indicates something other than “All Clg”, “Econo” or “Mech Clg.” Also, the current value of the Ctrl Temp= parameter must be above the Eff Clg Spt= by more than half the Clg Deadband= parameter in the Zone Cooling menu. If the current value of the Ctrl Temp= parameter is not above the Eff Clg Spt= by more than half the Clg Deadband= parameter in the Zone Cooling menu, the Eff Clg Spt= parameter must be adjusted accordingly to enable cooling operation. If...
What to do if McQuay MicroTech II unit does not leave the Off Unoc operating state?
If your McQuay Controller unit remains in the Off Unoc operating state, check the Occupancy = parameter in the Occupancy menu. If it indicates either “Occ” or “Bypass” and the unit remains in the Off Unoc operating state, the MCB is likely defective. Also, if the Occ Mode= parameter is set to “Unocc”, the unit starts only if unoccupied heating (night setback) or unoccupied cooling (night setup or purge) operation is active. If the Occ Mode= parameter is set to “Auto”, the unit starts only if at least one of the following are true: a) Field time clock terminals 101 to 102 on TB2 in the main control box are made (binary input MCB-BI1 is on). If any one of items a) through f) is true and the Occupancy= parameter in the Occupancy menu still indicates “Unocc” and the unit remains in the “Off Un...
Establishes the initial network link between PC and CSM.
Provides steps to establish the initial PC to CSM connection.
Configures network identity and system time settings for the CSM.
Describes how to access the CSM via its web-based interface.
Manages user access levels and permissions for the CSM interface.
Adds and configures network devices like chillers and I/O modules.
Assigns chillers to specific CSM numbers for network management.
Adds remote I/O modules to the CSM for expanded capabilities.
Configures specific data for each connected chiller for proper operation.
Sets the time limit before communication loss is detected by the chiller.
Manages overall CSM operating states and critical parameters.
Sets the primary operating mode (Occupied, Unoccupied, Automatic).
Defines how chillers are enabled/disabled to match cooling load.
Sets the priority for enabling and disabling chillers in the system.
Restricts system electrical demand to a set percentage.
Sets the target supply water temperature for the system.
Adjusts supply temperature based on load or other factors.
Defines the primary system temperature setpoint.
Configures automatic adjustment of system setpoints for efficiency.
Configures pump logic and flow control for the chilled water system.
Manages multiple pumps operating in sequence for flow control.
Sets up email alerts for alarm conditions.
Provides an overview of the chiller system's operational state.
Indicates the current overall operating mode of the CSM system.
Displays the current operational state of individual chillers.
Process for acknowledging and clearing system alarms.
Steps to clear manual-reset alarms from the CSM.
Categorizes alarms and their impact on system operation.
Guides on resolving issues connecting PC to the CSM.
Verifies PC network settings for compatibility.
Finds the CSM's network configuration details.
General| Brand | McQuay |
|---|---|
| Model | MicroTech II |
| Category | Controller |
| Language | English |
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