Eclipse 500 System Manual page 226

Section 9. Climate Control
AIR CONDITIONING SYSTEM CONTROL
The air conditioning system can be selected AUTO or OFF using a line select key on
the environmental (ENVIR) synoptic on the MFD. The default setting at power-up is
OFF. In the AUTO position, the following functions can be controlled on the ENVIR
synoptic:
Separate cockpit and cabin temperature control
Separate cockpit and cabin evaporator fan control
Windshield defog
Dehumidification
COCKPIT AND CABIN TEMPERATURE CONTROL
Cockpit and cabin temperatures can be separately set in two-degree increments from
64°F to 84°F. In addition there are MAX HEAT and MAX COOL settings for rapid
heating or cooling of the cabin. The default value at power-up of is 72°F.
MAXIMUM HEATING
The MAX HEAT setting is designed for rapid heating of the cabin when required.
Selecting MAX HEAT for the cabin and/or cockpit routes bleed air at the maximum
permissible temperature to that zone until the maximum allowed temperature (115° F)
is reached. Once the zone temperature reaches 115° F, the temperature is
modulated to maintain 115° F.
MAXIMUM COOLING
The MAX COOL setting is designed for rapid cooling of the cabin when required.
Selecting MAX COOL for the cabin and/or cockpit routes bleed air to the evaporators
at the minimum temperature available from the heat exchanger and provides
maximum cooling from the air conditioning. Cold air is supplied to that zone until the
minimum allowed temperature (50° F) is reached. Once the zone temperature
reaches 50° F, the evaporator fan automatically steps to MED or LOW speed to
maintain that temperature.
COCKPIT AND CABIN EVAPORATOR FAN CONTROL
The cockpit and cabin evaporator fans can be separately adjusted to OFF, AUTO,
LOW, MED, or HIGH. The default setting at power-up of the evaporator fan is AUTO.
In the AUTO position and a cooling mode, the evaporator fan speed is set as follows:
Cabin/cockpit temp. within approx. 2°F of selected temp ...................................... LOW
Cabin/cockpit temp. within approx. 7°F of selected temp .......................................MED
Cabin/cockpit temp. more than approx 7°F above selected temp. ........................HIGH
WINDSHIELD DEFOG
The DEFOG selection allows the crew to route conditioned bleed air to the windshield
to evaporate condensation on the cockpit windshield and side windows in conjunction
with the use of the FWD Evaporator fan. In this mode approximately 90% of the
airflow is routed to the defog ducts, and approximately 10% of the airflow is routed to
the cockpit foot warmers. The default setting at power-up is OFF. Optimal DEFOG
performance is obtained when the cockpit temperature is set to MAX HEAT, the
forward evaporator FAN is set to HIGH and the dehumidification (DEHUMID) feature
is ON.
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Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Version 2.0 April 2007