Installation, Operation and Maintenance Manual
Marvel Mini
53
Subject to change without notice.
120.9-IM (1218)
The settings for Blower VFDs sub-menu are only available
with factory provided VFD’s that are interconnected to the
controller via Modbus control It allows technicians to view
status and make minimal adjustments to the VFDs
Technician Menu 09
>>>Change Passwords <<<
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Enter Selected Menu
Esc to Previous
The Change Passwords sub-menu under the Technician
Menu allows the technician/customer the ability to Enable
Basic and or Technician Passwords
Technician Menu 10
>>>Information <<<
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Esc to Previous
The Information sub-menu provides information about
the software version, operating system version and other
detailed information about the installed controller
FAN DELAYS
U01
Damper Delays
Unit Start > 015sec
Damper Delay > 060sec
U01
Blower Delays
Blower Start >015sec
Blower Min ON >030sec
Blower Min OFF >030sec
Airflow Check >060sec
The Damper Delays and Blower Delays allow adjustment
of system delays The Unit Start delay is the length of time
between the Unit ON/OFF switch and when the Damper
starts The Damper Delay is the length of time that the
damper output must be on before the Supply Air Blower can
start The Blower Min ON delay is the amount of time that
the blower must be on before it can turn off. The Airflow
Check delay is the amount of time that the blower must
be on before any mode(s) of operation (Cooling, Heating,
Humidification, and Dehumidification) can start. Once this
delay has elapsed, the system is verified for air flow and
if the air flow is proven good, the modes of operation and
start. If air flow is not proven, the Loss of Airflow Alarm
will be posted, no modes of operation will start and the
blower output will de-energize The Blower Min OFF is the
amount of time that the blower must remain off once it is
de-energized