5291656-YTG-E-1117
2
Johnson Controls Unitary Products
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Durable Finish -
The cabinet is made of G90 galvanized
steel with a powder paint coating for appearance and protec-
tion. The pre-treated galvanized steel provides a better paint-
to-steel bond, which resists corrosion and rust creep. Pow-
der paint finish ensures less fading when exposed to sun-
light, and provides superior corrosion resistance (1000 hour
salt spray tested).
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Full Perimeter Base Rails -
The easily removable base rails
provide a solid foundation for the entire unit and protects the
unit during shipment. The rails provide fork lift access from
all sides, and rigging holes are also provided so that an over-
head crane can be used to place the units on a roof. On
applications where the unit is placed on a pad, the base will
keep the unit off the pad to deter corrosion. On applications
where height is limited, the base rails may be removed by
removing 2 screws in each corner.
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Attractive Appearance -
A single-piece top cover containing
a top-discharge condenser fan arrangement requires less
square footage on installation and provides a wider variety of
installations. The one-piece design adds greater water integ-
rity. Rounded corners with water drip edges add to the attrac-
tive appearance.
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Top Discharge -
The top-discharge outdoor fan does not
disrupt neighboring areas or dry out vegetation surrounding
the unit. The warm air from the top mounted fan is blown up
and away from the structure and any landscaping.
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Outdoor Coil Grille -
All models utilize a stamped slotted
design which provides superior impact protection against
small objects during transit and after installation.
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Low Operating Sound Level -
The upward air flow carries
the normal operating noise up and away from the living area.
The rigid top panel effectively isolates noise. Isolator
mounted compressor and the rippled fins of the outdoor coil
muffle the normal fan motor and compressor operating
sounds. The unique formed base pan also aids in sound
attenuation with its structural design.
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Fan System -
All models operate over a wide range of
design conditions with an enhanced ECM indoor fan motor.
These units easily match all types of applications and pro-
vide greater on-site flexibility to match comfort requirements.
The cooling speed is factory-set and can be field-adjusted to
a second speed. The heating speed is factory set to maintain
mid point rise at the units heating input, but can be field
adjusted. This allows maximum comfort conditions.
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Dehumidification/Humidity Switch Input -
This model unit
features a built in de-humidification feature for advanced
dehumidification during cooling operation. The unit indoor
blower control is designed to work with a humidity control
that closes when the humidity is below the set-point. The
control is open when the humidity is above the set-point. This
humidity control may be referred to as a humidistat or dehu-
midistat.
To use this feature, the control HUM STAT jumper must be
set to YES and a humidistat is connected from the low volt-
age R and HUM color coded leads. During cooling operation
if the humidity level is above the humidistat set point, the
indoor blower speed is reduced by approximately 15%.
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Simple Control Circuit -
Field thermostat wiring connect to
color coded leads using twist on wire connections. Cooling
controls use a contactor and a 2nd stage 24 VAC to 24 VDC
rectifier for simple application and troubleshooting. Mate-n-
lock plug connectors are used. Enhanced ECM indoor
blower control is managed by a multi-stage indoor blower
control board that includes field adjustable speed tap jump-
ers for maximum flexibility and product application. The
electrical control box is not located in the compressor com-
partment. The controls are mounted to allow the separate
access panel to be removed for trouble shooting and main-
tenance without affecting the normal system operating pres-
sures. All wiring internal to the unit is color/number coded.
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Protected Compressor -
The compressor is internally pro-
tected against high pressure and temperature. This is
accomplished by the simultaneous operation of scroll bypass
and a temperature sensor which protect the compressor if
undesirable operating conditions occur.
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Pressure Switches -
A high pressure switch is standard in
all units. It is an automatic reset switch. When discharge
pressure reaches 650 psi, the compressor will de-energize
until pressure reaches 450 psi.
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Loss of Charge Switch -
All models include a loss of charge
switch to provide safe shutdown of compressor.
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Exclusive Coil Design -
Grooved copper tubes and
enhanced aluminum fin construction improves heat transfer
for maximum efficiency and durability for long-lasting durabil-
ity and efficient operation. Indoor coils will use tin-coated
copper tubing with aluminum fins for effective heat transfer.
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Electric Heat -
All PCE models use 6HK electric heat, which
are available in 208/230V/3/60 from 10 kW to 25 kW. Single
point field wiring kits are available for all applications.
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Low Maintenance -
Long life, permanently lubricated indoor
and outdoor fan motor bearings need no annual mainte-
nance, adding greater reliability to the unit. Slide-out blower
assembly and indoor coil assembly can be easily removed
for cleaning.
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Easy Service Access -
Individual access panels are pro-
vided in access to all major components - compressors,
indoor coils, blower, controls/electric heat kits, filters, etc.
that makes servicing easy. Removing these panels allow
easy removal of the components such as the blower assem-
bly for maintenance and ease of troubleshooting.
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Replacement Parts -
The installer requires no special train-
ing to replace any of the components of these units and the
number of new components have been reduced to minimize
the inventory of unique parts.
• Filter Frame Kit -
All 3 phase PCE6 units include a filter
frame kit, which is shipped inside the unit from production.
Field installation is required.
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Filters -
All 3 phase PCE6 units include an applicable num-
ber of 1" washable filters, which are shipped inside the unit
from production. Field installation is required. Three filters
are required for B base units.
