6
Features and Benefits
Excellent efficiency and dehumidification
GE recognizes the importance of energy efficiency and
dehumidification in an air conditioning system and uses
EER (Energy Efficiency Rating) as a means of reporting the
relative cooling efficiency of the unit.
EER is the rating system used for Packaged Terminal Air
Conditioners and Heat Pumps.
The GE Zoneline
®
Vertical Packaged Terminal Heat Pump has
outstanding COP ratings. The measurement of the efficiency
of the heat pump output, when compared to electric resistance
heat, is called the Coefficient of Performance (COP). This
number provides a basis not only for comparing the heat
pump output to electric resistance heat, but also the ability
to directly compare heat pumps with the same range of
capacity to one another.
Unique Sleeve Design
The ZVAC case is installed on a field supplied platform and
attached to the wall plenum with field supplied screws. See
pages 10 and 16 for platform construction details.
The chassis slides into the sleeve, allowing for easy removal
of the unit for servicing and cleaning without the need to
remove condensate lines.
Three-Way Slide-Out Chassis
The case is designed to allow the installation of the chassis
from the front or either side of the case. This provides greater
flexibility in building and room design and unit placement. If
access to the front of the unit is restricted by a wall or furniture
placement, the chassis can slide in from either side of the case.
If an alcove or offset is designed into the building facade,
the three-way slide-out chassis enables the unit to be easily
installed and removed for service.
Electronic Temperature Limiting
Although the vertical unit is controlled by a wall mounted
thermostat, there may be a need to prevent the temperature
from being set to extreme energy wasting settings. The ZVAC
unit has seven independent programmable heating and
cooling temperature limits. A wide selection of limits eliminates
the need to reset the limits seasonally.
The Temperature
Limiting feature requires the use of the optional room
air temperature sensor, model RAVRMS. Designed to be
mounted on the wall of the unit enclosure closet, the Room Air
Temperature Sensor allows any compatible thermostat to be
used with the unit and provide Temperature Limiting.
The limits are set by dip switches located on the ZVAC unit and
are not accessible by the room occupant. Location of the dip
switches and the temperature settings are shown on page 14.
Cooling Temperature Limits degrees F.
Min
60° 64°
66°
68°
70°
72° 74° 76°
Max 85° 85°
85°
85°
85°
85°
85° 85°
Heating Temperature Limits degrees F.
Min
60° 60°
60°
60°
60°
60° 60° 60°
Max 85° 80°
78°
76°
74°
72° 70° 65°
Freeze Sentinel
™
To prevent damage to plumbing and room furnishings by
freezing temperatures, the ZVAC unit can provide Freeze
Sentinel which turns the resistance heaters on at 41° F.,
warms the indoor air to 46° F., and shuts the heater off.
The Freeze Sentinel feature requires the use of the
optional Room Air Temperature Sensor, model RAVRMS.
Designed to be mounted on the room side wall of the unit
enclosure closet, the Room Air Temperature Sensor allows any
compatible thermostat to be used with the unit and
provide Freeze Sentinel protection. The Freeze Sentinel
protection is automatic with the installation of the RAVRMS.
Even if the unit is connected to a Central Desk Control system
or a Room Occupancy Sensor system, and the unit is turned
off by the controlling system, Freeze Sentinel is still active to
provide protection. It may be defeated by switching the unit’s
ON/OFF switch to the OFF position, removing the power supply
to the unit or putting #2 dip switch in DOWN position.
Constant ON fan
Some localities may require the indoor fan on Packaged
Terminal Air Conditioners to operate at all times, even when
the wall primary control would normally turn the unit off. To
accommodate this requirement and provide the feature for
use by anyone wanting to operate the unit in this manner,
GE has provided a switch on the ZVAC that will allow this
mode of fan operation.
If the controlling dip switch (#3) is set in the UP setting, the fan
will run unless the unit’s ON/OFF switch is set to the OFF
position or power is removed from the unit.
