Honda HondaJet HA-420 Pilots Operating Manual page 155

Honda Aircraft Company
HA-420 SYSTEMS
POM DESCRIPTION
Bleed air is available from either or both engines during ground
operations. The Air Conditioner can operate on the ground with at least
one generator operating or with external power. When operating on a
single generator Ground Cooling Mode has to be selected through the
CDU. When in Ground Cooling Mode certain electrical loads will be
shed. On battery power when on-ground, the Air Conditioner and GCF
are not powered and the Cabin and Cockpit evaporator fans are speed
limited.
During single engine operations on the ground, bleed air does not
automatically flow into the cabin. Manual activation of bleed air is
possible; however, it requires one engine to be operating. If it is desired
to heat or cool the aircraft prior to taxi, start either engine and select
Ground Cooling mode.
The Air Conditioner is not available if a generator is lost in flight.
Cabin Air Distribution
There are two climate zones: the cockpit and the cabin.
HJ1-29000-005-001
October 30, 2016 1-139
FOR TRAINING PURPOSES ONLY