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Alarms (alarm menu is only visible if an alarm is present)

Space Sensor [MSV8] R – Space sensor alarm status. Enumerated

"no-fault/open/short". Check sensor wiring.

Outside Sensor [MSV9] R – Outside sensor alarm status.

Enumerated "no-fault/open/short". Check sensor wiring.

Discharge Sensor [MSV10] R – Discharge sensor alarm status.

Enumerated "no-fault/open/short". Check sensor wiring.

Burner Lockout [MSV12] R – Burner lockout alarm status. Indicates

the burner failed to light when requested. Enumerated "normal/lockout".

Low Temp Alarm [MSV14] R – Low temperature lockout alarm. This

is an indication that the unit was discharging air colder than the "Low Temp

Alarm" setting in the "Conﬁg" menu for greater than "Low Temp Time"

minutes. Check the burner for proper operation.

Dirty Filter [MSV13] R – Dirty ﬁlter indication (only available if the

unit has dirty ﬁlter monitoring as an option).

Motor Alarm [MSV11] R – Motor not responding alarm status. This

indicates the unit was enabled and the supply fan motor failed to start

within two minutes. Check VFD or overload (as available), OA damper limit

switch and wiring, and power.

Burner Response [MSV6] R - Indicates the burner was commanded

to light and the controller did not receive conﬁrmation.

Burner Watchdog [MSV7] R - Indicates the burner did not reach the

requested discharge temperature within 5 minutes. Possible problem with

gas pressure or gas valves.

Hardware Override [MSV1 - MSV5] R - Indicates a hardware point

was overridden by the building management system. As all control points

are available to the network, overrides are unnecessary. Remove the

override to clear the alarm.

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