294604-YTG-G-0511
4
Johnson Controls Unitary Products
impact protection against smaller objects during transit
and after installation.
•
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 any
motor sound. Isolator mounted compressor and the
rippled fins of the condenser coil muffle the normal fan
motor and compressor operating sounds. The unique
formed base pan also aids in sound alterations with it's
Super-Structure design. This design strategically places
embossments in the pan for optimum strength and rigidity.
•
Fan System
- All models operate over a wide range of
design conditions with an electrically commutated fan
motor. These units easily match all types of applications
and provide greater on site flexibility to match comfort
requirement. The cooling speed is factory set and can be
field adjusted to a second speed. The heating speed is
factory set but can be field adjusted. This allows
maximum comfort conditions.
•
Simple Control Circuit
- A low voltage printed circuit
board contains a diagnostic indicator light and a low
voltage terminal strip. An additional set of pin connectors
is also provided to simplify the field interface of external
controls. Mate-n-lock plug connectors are used. The
electrical control box is not located in the compressor
compartment. The controls are mounted on a Control-Tilt
control panel to allow the access cover to be removed for
trouble shooting and maintenance without affecting the
normal system operating pressures. All wiring internal to
the unit is color/number coded.
•
Protected Compressor
- The compressor is internally
protected against high pressure and temperature. This is
accomplished by the simultaneous operation of high
pressure relief valve and a temperature sensor which protect
the compressor if undesirable operating conditions occur.
•
Pressure Switches
- High pressure and low pressure/
loss of charge switches standard in all units. When
abnormal conditions are sensed through the pressure
switches, the unit will lock out preventing any further
operation until reset or problem is corrected.
•
Exclusive Coil Design
- Grooved copper tubes and
enhanced aluminum fin construction improves heat
transfer for maximum efficiency and durability.
•
Self Diagnostic Fan Control Module
- Due to this self
diagnostic control, less on site time is required to trouble
shoot these units.
•
Low Maintenance
- Long life, permanently lubricated
condenser and evaporator fan motor bearings need no
annual maintenance adding greater reliability to the unit.
Blower assembly can be easily cleaned by the unique
Slip- Track slide-out blower assembly.
•
Secured Service Access Ports
- Protected, externally
mounted, re-usable service access ports are provided on
both the high and low lines for ease of evacuating and
charging the system. No final field mounting required.
•
Easy Service Access
- A large, single panel covers the
electrical controls to make servicing easy. The blower
compartment has an additional large panel with a built-in
handle tab. Removing this panel will allow the blower
assembly to slide-out for easy removal for maintenance
and ease of trouble shooting.
•
Replacement Parts
- The installer requires no special
training to replace any of the components of these units
and does not need to maintain an inventory of unique parts.
•
System Integration
- Each unit has the internal ability to
integrate an electronic air cleaner or humidifier to work in
conjunction with the base unit.
Field Installed Accessories
•
Economizer Down Discharge/Supply Kit
- Modulating
integrated economizer provides simultaneous operation
between the mechanical cooling and economizer
operation. Independent blade design insures proper
control and less than 1% leak rate. Includes hood and
mesh bird screen filter integrated into the hood, dry bulb
sensor and relief damper. Separate field accessories of
single enthalpy and dual enthalpy are also available. A
built-in barometric relief of 25% is provided.
•
Single Enthalpy Sensor
- Sensor replaces dry bulb
sensor standard in economizer kit. Provides improved
economizer operation by sensing the dry bulb temperature
from outdoors plus the enthalpy content of the outdoor air.
•
Dual Enthalpy Sensor
- Additional sensor to single
enthalpy sensor. Sensor senses both the return air
temperature dry bulb and humidity in conjunction with the
single enthalpy to determine the most economical mix.
Single Enthalpy sensor also required.
•
Hail Guard Kit
- Kit contains protective grilles made of
expanded aluminum with full perimeter frame. Sloped
hoods are also included to assure maximum protection.
•
Filter/Frame Kit (Single Phase Only)
- Kit contains the
necessary hardware to field install return air filters into the
base unit. Pre-cut filter racks and appropriate cleanable
standard size filters are shipped in one kit. The filter rack
is suitable for either 1" or 2" filters. (1" filter is supplied)
This kit is available for single phase horizontal or vertical
duct application only. Standard in all 3 Phase models.
•
Motorized Fresh Air Damper
- Designed for duct
mounted side supply/return and unit mounted down
supply/return applications. Damper capable of providing
0% through 50% of outdoor air (field supplied). Closes on
power loss, includes hood and screen assembly.
•
Rectangle To Round Adapters
- Kit includes one supply
and one return air rectangle to round duct adapter.
Adapters are preformed and designed to fit over current
duct openings on the base unit. Transition is from side
square duct opening to 14" round duct opening.
•
Roof Curbs
- NRCA approved curbs provide proper fit to
base unit for rooftop installations. Curbs are designed to
be assembled through hinge pins in each corner. Kit also
provides seal strip to assure a water tight seal. 8 and 14
inch high roof curbs are available.
•
Manual Outdoor Damper
- Provides 0% through 50%
outdoor air capability (field adjustable). Designed for duct
mounted side supply/return applications. Includes hood
and screen assembly.
•
Wall Thermostat
- The units are designed to operate with
24-volt electronic and electro-mechanical thermostats. All
units can operate with single stage heat/single stage cool
thermostats - with or without the economizer.
