Cooling Section Operation; Cooling Mode; Continuous Fan Mode - Daikin Maverick I Installation And Maintenance Manual

Cooling Section Operation

Cooling Mode

Call for first stage cooling
1. Zone thermostat contacts close and a call for cooling is
initiated.
2. Inputs Y1 and G to the control are energized.
3. Control senses Y1 and G. After 1 sec. delay, control
energizes indoor blower and first stage compressor.
4. Control enters normal operating loop where all inputs are
continuously checked.
5. Zone thermostat is satisfied.
6. Control de-energizes indoor blower relay after 80 second
indoor blower delay off.
7. Control in the stand by mode with solid red LED.
Call for second stage cooling. After first stage cooling
established: starting from A4 .
1. If a call for second stage cooling is initiated after a call for
first stage cooling is established, the control energizes
Y2 and energizes the second stage compressor.
2. Control enters normal operating loop where all inputs are
continuously checked.
Second stage satisfied: first stage still called for: starting
from B2 .
1. Y2 is de-energized and second stage compressor is
deenergized.
First stage and second stage called simultaneously .
1. Zone thermostat contacts close, a call for first and
second stage cooling is initiated.
2. Inputs Y1, Y2 and G to the control are energized.
3. Control senses Y1, Y2 and G, after 1 second delay,
control energizes indoor blower, first and second stage
compressor are energized.
First stage and second stage removed simultaneously .
1. Upon a loss of Y1 and Y2 each compressor is
deenergized. Control either de-energizes indoor blower
relay after 80 second indoor blower delay off.
2. Control in the stand by mode with solid red LED.
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Continuous Fan Mode

G input only indicates a zone thermostat call for continuous
indoor blower operation.
41 IM 972-2 • MAVERICK I ROOFTOP SYSTEMS
Controls and Operation