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Energy Management System Interface with Load
Shedding Option
All units have a switch on the auxiliary control panel
to allow the indoor fan to continue operating if the
unit is connected to an energy management system
that shuts off compressor or heater operation. By
allowing the indoor fan to run when the heater or
compressor is shut off by the energy management
system, the guest is less likely to realize the
operation of the unit has been altered. This helps
reduce peak energy demand loads without
disturbing the room occupant.
Reversible Indoor Air Louvers
Allows air to be directed into room at 40º or 50º
angle to provide better air distribution. Angle is
changed by removing room front and screws
holding louver in place, and rotating louver section.
Indoor Coil Frost Control
Prevents indoor coil from freezing
and causing complaints due to
lack of cooling. Frost can form
on the indoor coil when the unit
is operated in cooling when
outdoor temperatures are low.
The unit automatically shuts the
compressor off until the indoor
coil temperature warms to the point where frosting
will no longer occur.
Transfer Fan Interface
24 VAC terminals are provided to operate a relay,
which controls a fan mounted in a wall to move
conditioned air into another space. The electrical
power for the operation of the transfer fan itself
is not provided by the Zoneline. Transfer fans and
their controlling relays are fi eld-supplied.
Electronic Temperature Limiting
Seven independent programmable heating
temperature limits and seven independent
programmable cooling temperature limits.
Eliminates need to reset the limits seasonally.
Highest
Heating Temperature Limits Heat
65
70
72
74
76
78
80
85
Lowest
Cool Cooling Temperature Limits
60
64
66
68
70
72
74
76
Fan-Cycle Switch – SmartFan
The SmartFan allows the unit to operate fan-
continuous in cooling operation and fan-cycle in
heating to provide better guest comfort. It eliminates
the complaint of cold air draft during heating
operation. It also eliminates the need of changing
the fan-cycle switch seasonally. SmartFan settings
are controlled by two dip switches on the auxiliary
control panel.
Compressor Random Restart
In the event of a power failure, all compressors
attempting to restart immediately when the power is
restored can result in a power surge that can cause
another power interruption. The microprocessors
in the Zoneline have a random restart logic system
that prevents all units from starting at the same
time.
Rotary Compressor
Smoother operation for quiet, dependable service.
GE has used rotary compressors since 1961.
Compressor Restart Delay
Zoneline air conditioners are designed to provide a
minimum of three minutes of compressor off time
to allow refrigerant pressures to equalize before
restarting to prevent compressor damage. They
are also designed to provide a minimum of three
minutes of compressor run time to prevent room
occupant disturbance due to short-cycling of the air
conditioner.
Freeze Sentinel
Detects low room temperature and also turns on
the heater to help protect against damage caused
by freezing room temperature. Heater turns on at
41°F and warms the indoor thermistor temperature
to 46°F and shuts off. The Freeze Sentinel may be
turned off by a dip switch on the auxiliary control.
Heat Sentinel
The property owner may choose to activate the Heat
Sentinel feature on the Zoneline. If the Heat Sentinel
is activated and the room temperature reaches
85°F while the unit is in the STOP setting, the unit will
automatically start in air conditioning operation and
will shut off when the room temperature reaches
80°F. This will help dehumidify the air and lower high
temperatures so the guest will not be entering an
extremely hot room.
(Continued next page)
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