Johnson Controls ACPU024 THRU 060 - Manual (Page 4)

279815-PTG-D-0408
4 Johnson Controls Unitary Products
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.
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.
UPGRADE SAFETY PACKAGE - Contains screw in type High
pressure, Low Pressure/Loss of Charge switch, freeze protection
switch and lockout relay. Switches are placed onto existing
scharder ports located in the unit by furnished adapters. When
abnormal conditions are sensed through the pressure switches,
the unit will lock out preventing any further operation until reset or
problem is corrected. Package agency approved.
HAIL GUARD KIT - Kit contains protected grilles made of
expanded aluminum grilles with full perimeter inch frame.
Sloped hoods are also included to assure maximum protection.
ANTI SHORT CYCLE TIMER - Automatically prevents the
compressor from restarting for 5 minutes after cycled off. Not
required if Thermostat 2ET07700224 and 2ET04700224 are used.
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. (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% thru 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 15" square to 14"
round.
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% thru 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.
LOW AMBIENT KIT - Kit provides necessary hardware to
convert unit to operate in cooling cycle down to 0° F. Standard
unit operation 45° F.
TRANSFORMER KIT - Kit provides necessary hardware to
provide single phase models from factory furnished 40 VA
transformer capability to 75 VA transformer capability.
ELECTRIC HEATERS - Each heater package provides easy
installation of electric heat strips. Slide in design with plug in
harness and agency approved. Heaters are available from 5.0
KW sizes and are designed for single point connection.
FIGURE 1 - UNIT CUTAWAY
DIRECT DRIVE
CONDENSER
FAN MOTOR
HIGHLY EFFICIENT
ENHANCED COPPER
TUBE/ALUMINUM FIN
CONDENSER COIL
LOW VOLTAGE
TERMINAL BLOCK
HIGH EFFICIENCY
COMPRESSOR
RIGIDLY
MOUNTED
BACK AND BOTTOM
RETURN AIR
AND SUPPLY AIR
DUCT OPENING
5-SPEED DIRECT DRIVE
BLOWER MOTOR WITH
SLIDE-OUT BLOWER ASSEMBLY
HIGH VOLTAGE
TERMINAL BLOCK
HIGHLY EFFICIENT ENHANCED
COPPER TUBE/ALUMINUM FIN
EVAPORATOR COIL
HEAVY GAUGE
REMOVABLE
BASE RAILS
LONG LASTING
POWDER PAINT
FINISH EARTH
TONE COLOR
DECORATIVE
PROTECTIVE
COIL GUARD