Uniflair
™
Direct Expansion InRow®Cooling
ACRD300 and ACCU300 Series
Technical Specifications
Up to 30 kW, CE/UL Certified
990-91356B-001
Release Date: 07/2021
https://www.se.com
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Table of Contents
Technical Data.............................................................................................5
Model Identification.....................................................................................5
Overview ...................................................................................................7
Scalable Solution for Critical Environments.................................................10
Standard Features and Options ................................................................. 11
Microprocessor Controller .........................................................................16
Component Identification ..........................................................................19
Performance Specifications....................................................................... 31
Dimensions and Weights...........................................................................36
Refrigeration Piping Diagram.....................................................................46
ACRD300 and ACCU300 Series
Capacities ............................................................................................7
Room Air Distribution ............................................................................7
Compliance Approval ............................................................................8
Working Conditions and Environmental Limits .........................................9
InRow Advantages.............................................................................. 10
Scalable for High Density ....................................................................10
Standard Features .............................................................................. 11
Optional Features ...............................................................................14
Display Interface ................................................................................. 16
Microprocessor Controller....................................................................17
Open Architecture...............................................................................17
Control Type.......................................................................................17
Functions ...........................................................................................17
Control...............................................................................................17
Alarms ...............................................................................................18
External Components.......................................................................... 19
Internal Components...........................................................................21
Electrical Panels .................................................................................25
Cooling Capacity ................................................................................ 31
General Data ...................................................................................... 32
Electrical Data ....................................................................................34
Sound Data ........................................................................................ 35
Indoor Unit ......................................................................................... 36
Outdoor Unit....................................................................................... 37
Service Access ...................................................................................38
Airflow Clearance................................................................................ 39
Piping and Electrical Access Locations ................................................. 40
990-91356B-001 3
Technical Data ACRD300 and ACCU300 Series
REAR
NAME PLATE
na4402b
Technical Data
Model Identification
Indoor Unit
The model number can be found on the outside of the shipping crate and on the
name plate located on the unit as shown. Use the table below to verify that the
equipment is the right type and voltage.
NOTE: The unit is not to be accessed by the general public.
SKU Voltage Frequency 65
ACRD301S 100–120 V~* /
200–240 V~
ACRD301P 200–240 V~ 50/60 Hz No Dual feed 1 Condensate
*Configure proper voltage before applying power to the cooling unit.
NOTE: All units have a rear-to-front airflow pattern.
50/60 Hz Yes Dual feed 1 Condensate
kAIC
Power Feed Number of
Fan Power
Supplies
Drainage
System
pump
pump
Humidification/
Reheat
No/No
Yes/Yes
990-91356B-001 5
ACRD300 and ACCU300 Series Technical Data
na6990a
NAME PLATE
Outdoor Unit
The model number can be found on the outside of the shipping crate and on the
name plate located on the unit as shown. Use the table below to verify that the
equipment is the right type and voltage.
NOTE: The unit is not to be accessed by the general public.
SKU Voltage Frequency Power Feed
ACCU300 200–240 V 3~ 50/60 Hz Single feed
ACCU300D 200–240 V 3~ 50/60 Hz Dual feed
ACCU302 380–415 V 3~ 50/60 Hz Single feed
ACCU302D 380–415 V 3~ 50/60 Hz Dual feed
ACCU301 460–480 V 3~ 50/60 Hz Single feed
ACCU301D 460–480 V 3~ 50/60 Hz Dual feed
NOTE: All units are 65 kAIC-ready.
6 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Overview
The ACRD300 series of indoor units can provide a cooling capacity up to 30 kW
based on a half-rack platform (300 mm (12 in.)) with an ACCU300 series outdoor
condensing unit. A variable-speed compressor works with EC fans and a fin-tube
exchanger to reach the best cooling efficiency.
This modular, row-based computer room cooling system offers efficient,
predictable, and economical cooling for a variety of spaces.
Critical environmental requirements now reach far beyond the confines of the
traditional data center or computer room to encompass a larger suite of
applications, referred to as technology rooms. Critical environment applications
include the following:
• Computer rooms
• Telecommunication facilities
• Clean rooms
• Power equipment
• Medical equipment rooms
• LAN/WAN environments
• Edge data centers
• Traditional data centers
A worldwide network by Schneider Electric representatives is fully qualified to
provide engineering, sales, installation, and service for our products.
Capacities
Room Air Distribution
Uniflair™Direct Expansion (DX) InRow®units in the ACRD300 series are available
as a 300-mm.
Row-based systems are placed in line with rack enclosures. At least one system is
used per hot aisle. Air is drawn in through the rear of the system, cooled, and
discharged into the cold aisle, thereby neutralizing the sensible heating effects of
the data processing equipment. Uniflair Direct Expansion InRow products deliver
high volumes of airflow to eliminate hot spots in densely populated environments.
Configuration:
• Air-cooled
990-91356B-001 7
ACRD300 and ACCU300 Series Technical Data
Compliance Approval
Indoor Unit
Model UL and cUL RCM CE EAC CCC CMIM
ACRD301S X X X X
ACRD301P X X X
Outdoor Unit
Model UL and cUL RCM CE EAC CCC CMIM
ACCU300 X
ACCU300D X
ACCU301 X
ACCU301D X
ACCU302 X X
ACCU302D X X
8 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Working Conditions and Environmental Limits
Uniflair Direct Expansion InRow units have a minimum heat load to ensure proper
operation. Failure to operate the unit with at least the minimum load will result in
one or more of the following conditions:
• Unstable unit operation
• Decreased operating efficiency
• Equipment on/off cycling
• Inadequate dehumidification
• Increased wear and tear caused by frequent on/off cycles
• Decreased group control effectiveness
• Potential increase in cost of ownership
Limit Working Conditions—Indoor Units (ACRD301P, ACRD301S)
Refrigerant type R410A
Voltage input tolerance ±10%
Approximate minimum recommended load 8.0 kW (27,297 BTU/hr)
Outdoor ambient temperature without the low
ambient temperature kit installed
Outdoor ambient temperature with the low
ambient temperature kit installed
Ambient %RH 5 to 80%RH
Altitude 3000 m (9843 ft)
Storage Conditions
Temperature –25°C to +65°C (–13°F to +149°F)
Humidity 5 to 95%RH
NOTE: ACRD301P and ACRD301S are in accordance with the Electromagnetic Compatibility Standard (EMC): EN 55032, EN55024,
EN61000-3-2, EN61000-3-3, EN61000-6-3, EN61000-6-1, EN61000-3-11, EN 61000-3-12.
ACRD301P and ACRD301S are in accordance with FCC: ANSI C63.4.
NOTE: The SKUs comply with EN61000-3-12 provided that the short-circuit power SSC is greater than or equal to 350 at the interface
point between the user supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by
consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit
power SSC greater than or equal to 350.
Limit Working Conditions—Outdoor Units (ACCU300. ACCU300D, ACCU302, ACCU302D, ACCU301, and ACCU301D)
Refrigerant type R410A
Altitude 3000 m (9843 ft)
Storage Conditions
Down to –15°C (+5°F)
Up to 48°C (118°F)
Down to –40°C (–40°F)
Up to 48°C (118°F)
Temperature –25°C to +65°C (–13°F to +149°F)
Humidity 5 to 95%RH
NOTE: ACCU302 and ACCU302D are in accordance with the Electromagnetic Compatibility Standard (EMC): EN 55032, EN55024,
EN61000-3-2, EN61000-3-3, EN61000-6-3, EN61000-6-1, EN61000-3-11, EN 61000-3-12.
ACCU300, ACCU300D, ACCU301, and ACCU301D are in accordance with FCC: ANSI C63.4.
NOTE: The SKUs comply with EN61000-3-12 provided that the short-circuit power SSC is greater than or equal to 350 at the interface
point between the user supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by
consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit
power SSC greater than or equal to 350.
990-91356B-001 9
ACRD300 and ACCU300 Series Technical Data
na5859a
HOT AISLE
Scalable Solution for Critical Environments
InRow Advantages
The row-based solution improves energy efficiency and cooling ability in a number
of ways. First, the Uniflair Direct Expansion InRow unit draws air directly from the
hot aisle, allowing the unit to take advantage of higher heat transfer efficiency due
to higher temperature differences. It can then discharge room-temperature air
directly in front of the servers it is cooling. Placing the unit in the row enables the
unit to operate at higher return and supply air temperatures, yielding 100%
sensible capacity. This significantly reduces the need for humidification.
Scalable for High Density
The predictable performance of the row-based architecture makes it well-suited
for high density applications. The focus on heat removal instead of cold-air
delivery is the key to making this approach scalable. The modular design of the
Uniflair Direct Expansion InRow unit allows it to be easily added in the row as the
demand for cooling increases.
The additional benefit of the row-based architecture is the ability to add hot-aisle
containment. Containing the hot aisle further reduces any chance of hot and cold
air streams mixing. This provides ultimate predictability and allows the cooling
capacity to be matched to the IT heat load.
10 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Standard Features and Options
Standard Features
EcoStruxure
The ACRD300 Series is ready to connect to the world-leading DCIM platform.
™
Ready
Cabinet
The frame of the ACRD300 series units is constructed of 16-gauge formed steel
for maximum strength. The cabinet is serviceable from the front and rear. All
exterior panels and corner posts on the frame are powder coated for durability and
an attractive finish. The front and rear exterior panels are constructed of 18 gauge
perforated steel with 80% open free area. All panels, which include a key latch for
safety and security, allow easy access and removal. The footprint of 300 mm
takes up less space in the data center.
Condensate Pump
• ACRD301S and ACRD301P: A condensate pump is factory wired and piped
internally to the condensate drain pan. Within the condensate pump, there is
a dual position float. The first position is used for condensate pump control
and the other float generates a condensate pump failure alarm to prevent
condensate pan overflow.
Counterflow Cooling Coil/Condensate Pan
Designed for high-sensible heat ratios, the coil is constructed with copper tubes,
raised-lance-type aluminum fins, and 18-gauge galvanized steel end plates. Coil
headers are equipped with anti-drip shields in the event of condensation. The
condensate pan is thermal formed non-ferrous material, and is sloped for positive
drainage to provide higher indoor air quality.
Electric Reheat (ACRD301P)
Electric reheat elements are low watt density, wired for single-phase and loaded
equally on all three phases, and electrically and thermally protected by both
automatic and manual reset thermal cut outs. Reheat elements are stainless steel,
fin tubular construction.
Filters
Filtration of conditioned air is extremely vital to maintaining the clean, particle-free
environment required by electrical equipment. Filters are easily replaceable from
the rear of the unit. ACRD300 series units use greater-than 20% efficiency
ASHRAE 52.1, 12.7 mm (1/2 in.) washable filters that meet HF-1 standards for
electronics (MERV 1 per ASHRAE 52.2)
990-91356B-001 11
ACRD300 and ACCU300 Series Technical Data
Humidifier (ACRD301P only)
The humidifier is a self-contained, steam-generating type, factory piped and wired,
with a disposable cylinder and an automatic solid state control circuit. Humidifier
canisters are replaceable. The humidifier controller communicates directly to the
microprocessor controller and provides complete status and control at the
operator interface.
Network Management Card
The Network Management Card (NMC) allows communication with the local area
network (LAN). In addition, the NMC permits multi-level access to monitoring,
control, and event notification features over the building network.
Remote Temperature Sensors
To control the cooling unit based on rack inlet temperature, remote temperature
sensors are provided. The ACRD300 series units come equipped with one
temperature sensor. These sensors measure temperature at a point 4 m (13 ft)
from the connection inside the Uniflair Direct Expansion InRow unit. These
sensors are used for remote placement in the field on an adjacent IT rack.
Shutdown Input/Alarm Output
The unit provides one field connection input for remote shutdown and one field
connection alarm output.
Power
• 3.2 rated SCOP (EER)
◦ Substantially lower power consumption
• Power by UPS
◦ Due to low current draw, connect the indoor unit secondary power feed to
the UPS for easy power backup.
Selectable Top or Bottom Piping Connections
The cooling unit includes both top and bottom piping connections. All ACRD300
series connections use threaded ring seals for ease of installation and service.
Variable-Speed Fans
Each unit is equipped with variable speed fans to allow for varying heat loads. In
order to provide uniform airflow over the cooling coil, the fans provide a drawthrough air pattern. ACRD300 series units are equipped with eight direct-drive fan
modules. These fans are easily replaceable while the unit is in operation.
R410A Refrigerant
R410A refrigerant does not harm the ozone layer and has a very low contribution
to the global warming impact.
Outdoor Condensing Unit
The outdoor condensing unit has a small footprint of 1 m2(10.8 ft2). Moving the
compressor to the outdoor condensing unit improves serviceability for the indoor
unit and lowers the sound level in the IT space.
12 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Electronic Expansion Valve
The EEV provides accurate control of the refrigerant superheat in order to ensure
an increase in efficiency at low external temperatures because it enables the unit
to operate at much lower condensing pressures than would be possible with a
traditional mechanical valve.
Display Interface
The standard arrangement of the touch-screen display, RS 485 serial card, and
USB connection allows direct connection to BMSs based on serial lines. The USB
port allows quick downloads of the unit settings and parameters.
Microprocessor
The control system consists of two sections: the J5 controller containing the
regulation software and is installed in the unit electrical panel, and the 4.3-inch,
touch-screen display interface on the exterior of the unit.
The control system uses sophisticated algorithms to control the outlet water
temperature within a minimal range and to monitor and protect the various unit
components. The display interface provides clear information on the unit status
and any current alarms.
Low Ambient Kit
The low ambient kit provides the capability to operate in lower temperatures, down
to -40°C (-40°F) . Contact Schneider Electric for more details.
The kit can be field supplied or purchased from Schneider Electric.
990-91356B-001 13
ACRD300 and ACCU300 Series Technical Data
Optional Features
Aisle Containment
This containment solution isolates pods (two rows of Uniflair Direct Expansion
InRow cooling units sharing a common aisle) from the whole IT environment,
increasing cooling efficiency at any density.
Cable Water Detector
A leak detection cable is placed on the floor or sub-floor around all possible leak
sources. If water or other conductive liquids contact the cable anywhere along its
length, the microprocessor controller announces the leak visually, audibly, and
across the network. The 6.1-m (20-ft) cable may be cascaded to make custom
lengths up to 24.4 m (80 ft).
Humidity Monitoring
An optional remote sensor is available to monitor the humidity level of the data
center.
Dual Power Circuits
Optional integrated redundant power circuits provide full power redundancy.
Compressor Acoustic Hood
An optional compressor acoustic hood reduces the sound level.
Data Partition
Overhead cable distribution between adjacent NetShelter racks allows for removal
of the Uniflair Direct Expansion InRow units without disrupting overhead cabling.
Filters
Electrical equipment requires clean, particle-free air, thus making air filtration
extremely important. As an optional feature, higher efficiency filters can be
purchased for the Uniflair Direct Expansion InRow units. The ACRD300 series
units optionally use an 50.8 mm (2 in.) pleated, deep loading, 30% ASHRAE 52.1
filter (MERV 8 per ASHRAE 52.2).
Height Adapters
To match height of the Uniflair Direct Expansion InRow cooling units to various
rack heights, height adapters are available for NetShelter 42-U VX and 48-U SX
racks.
Network Cable
Various lengths of network cable are available to ship with your cooling system.
The network cable is used to interconnect multiple units in a redundant group, as
well as to connect the Network Management Card to your LAN.
Power Trough
Overhead power distribution between adjacent NetShelter racks allows for
removal of the Uniflair Direct Expansion InRow cooling units without disrupting
overhead power cabling.
14 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Rack Air Containment
This containment solution isolates the airflow of InRow cooling units from the
whole IT environment, increasing efficiency while allowing for high density
deployment.
990-91356B-001 15
ACRD300 and ACCU300 Series Technical Data
Display
Reset
Micro
SD
Service
Port
USB
Console
10/100
na4820a
Microprocessor Controller
Display Interface
Item Description Function
LCD Display
4.3-inch touch-screen color display
Power LED The cooling unit is powered when the LED is illuminated. Unit
firmware is updating when LED is blinking.
Check Log LED
When this LED is illuminated, a new entry has been made to the
event log.
Alarm LED
Status LED
Display Reset button
Displays current alarm condition of unit.
Displays current network management card status.
Resets the display microprocessor. This has no effect on the air
conditioner controller.
Link-RX/TX (10/100) LED
Micro SD card slot
Displays current network link status.
Memory card expansion slot.
Service port USB-B port used only by service personnel.
USB-A port Supports firmware upgrades.
Serial Configuration port Connects the display to a local computer to configure initial
network settings or access the command line interface (CLI).
16 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Microprocessor Controller
The microprocessor controller is standard on each system. The easy-to-use
touch-screen display allows the operator to select options from the menu-driven
interface to control and monitor the connected air conditioning system.
Open Architecture
The Uniflair Direct Expansion InRow cooling protocol is open for integration with
all building management systems. Communication interface on the system can be
MODBUS RS485 or Ethernet.
Control Type
The controller uses proportional/integral/derivative (PID), a time-proven precision
environmental control method. This allows for custom tuning of control variables to
achieve desired system response.
Functions
• Supply and return air conditions
• Operational mode control
• Event logging
• Alarms
• Redundant group control
• Fan speed adjustment
• Input/Output module programming
Control
The touch-screen LCD display interface is protected by a configurable password
and provides access to information and settings for the unit.
• Supply Temperature Setpoint: 15.0–30.2°C (59.0–86.4°F)
• Cool Setpoint: 18.0–32.2°C (64.4–90.0°F)
• Rack Inlet High Temperature Threshold: 10.0–65.6°C (50.0–150.1°F)
• Supply Air High Temperature Threshold: 10.0–65.6°C (50.0–150.1°F)
• Return Air High Temperature Threshold: 10.0–65.6°C (50.0–150.1°F)
990-91356B-001 17
ACRD300 and ACCU300 Series Technical Data
Alarms
The microprocessor controller shall activate a visible and audible alarm in the
following occurrences:
• Air filter clogged
• Return air sensor fault
• Supply air sensor fault
• Rack temperature sensor fault
• High discharge pressure
• Low suction pressure
• Fan fault
• Water detected (if optional leak detector used)
• Check condensate management system
• Air filter run hours violation
• Group communication fault
• Supply air high temperature violation
• Return air high temperature violation
• Filter DP sensor failure
• Suction pressure sensor failure
• Discharge pressure sensor failure
• Persistent high discharge pressure fault
• Rack inlet temperature high violation
• Internal communication fault
• Condensate pan full
• Persistent low suction pressure fault
• Compressor drive communication fault
• Compressor drive fault
• Compressor run hours violation
• Condensate pump run hours violation
• Idle mode active
• High pressure switch active
• Compressor high pressure
• Excessive compressor cycling
18 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
na6950a
Component Identification
External Components
Indoor Unit—All ACRD30X Units
Item Description
Upper side panel
Upper piping connection openings
Filters
Rear panel
Lower side panel
Rear casters (non-swiveling)
Lower piping connection openings
Front casters (swiveling)
Leveling feet
Front panel
Display interface
990-91356B-001 19
ACRD300 and ACCU300 Series Technical Data
na6953c
Outdoor Unit—All ACCU Units
Item Description Item Description
Fan Mounting holes
Main disconnect switch handle (field
Signal cable inlet
installed)
Electrical panel access doors Liquid receiver outlet
Quarter-turn latches
Liquid line inlet
Service panel Suction line inlet
Power feed A inlet Coil grilles
Power feed B inlet Lifting eyebolts (field supplied)
20 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
na6951a
Internal Components
Indoor Unit
ACRD301S
NOTE: Some components not shown for easier viewing.
Item Description Item Description
Power supply connections (top) Temperature sensor (suction)
Fans
Upper supply air temperature sensor
Solenoid valve Condensate drain pump
Liquid line service port
Cooling coil
Lower supply air temperature
Refrigerant temperature sensor Electronic expansion valve (EEV)
Leveling feet Sight glass
Condensate drain pan
Drain pan float switch
Joining bracket Upper return air temperature sensor
Lower return air temperature sensor
990-91356B-001 21
Gas line service port
Automatic transfer switch (ATS)
Temperature and humidity sensor (optional)
Inlet connection
Outlet connection
Filter drier
Electrical box
ACRD300 and ACCU300 Series Technical Data
na7509a
ACRD301P
NOTE: Some components not shown for easier viewing.
Item Description Item Description
Power supply connections (top) Humidifier
Electric heaters Lower return air temperature sensor
Upper supply air temperature sensor (attached to
fan grille)
Solenoid valve Gas line service port
Liquid line service port
Cooling coil Condensate drain pump
Lower supply air temperature (attached to fan
grille)
Refrigerant temperature sensor*
Fans
Leveling feet Electronic expansion valve (EEV)
Condensate drain pan Sight glass
Drain pan float switch
Power supply connection (lower)
Joining bracket Upper return air temperature sensor
Temperature sensor (suction)
Automatic transfer switch (ATS)
Temperature and humidity sensor
Inlet connection
Outlet connection
Filter drier
Electrical box
22 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
na7512a
Outdoor Unit
ACCU300, ACCU300D, ACCU301, ACCU301D
Item Description Item Description
Electrical panel Variable-speed compressor
Pipe stub for connection to liquid
Variable frequency drive (VFD)
receiver
Accumulator Interior protection panel
Liquid line connection
Liquid receiver cable inlet
Suction line connection
Oil separator
EMI filter
Service port
High pressure switch
High (discharge) pressure sensor
Compressor sight glass Service port
Low (suction) pressure sensor
990-91356B-001 23
ACRD300 and ACCU300 Series Technical Data
na7514a
ACCU302, ACCU302D
Item Description Item Description
Electrical panel Variable-speed compressor
Pipe stub for connection to liquid
Variable frequency drive (VFD)
receiver
Accumulator Interior protection panel
Liquid line connection
Liquid receiver cable inlet
Suction line connection
Oil separator
Line reactor and EMI filter
Service port
High pressure switch
High (discharge) pressure sensor
Compressor sight glass Service port
Low (suction) pressure sensor
24 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
na5053b
Electrical Panels
Indoor Unit
ACRD301S
Item Description
Upper electrical box cover
J5 controller
Controller cover
Power supply 2 (Optional field-installed accessory)
Power supply 1
990-91356B-001 25
ACRD300 and ACCU300 Series Technical Data
na7518a
ACRD301P
Item Description Item Description
Upper electrical box cover
Fuse for heater 2 (bottom heater)
Humidifier controller fuse (F4) Fuse for heater 1 (top heater)
Liquid line solenoid valve fuse (F3) Humidifier controller (CPY)
24-VAC supply transformer fuse (F2) Humidifier electrode contactor
Condensate pump fuse (F1)
24-V transformer for CPY
J5 controller
Heater 2 contactor
Heater 1 contactor
Power supply 1
Controller cover Power supply 2 (Optional field-installed
accessory)
Lower electrical box cover
Humidifier electrode current sensor
Humidifier electrode fuse
26 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
0000373723_C
Outdoor Unit
ACCU300
Item Description Item Description
Low temperature kit fuse block
Terminal block
Crank case heater switch
Fan motor switch
Compressor variable-speed drive
switch
Main switch
990-91356B-001 27
ACRD300 and ACCU300 Series Technical Data
0000373722_C
ACCU300D
Item Description Item Description
Low temperature kit fuse block Supply B line monitor
Terminal block
Supply A contactor timer
Crank case heater switch Supply B contactor timer
Fan motor switch
Compressor variable-speed drive
ATS circuit fuse
Supply line selector A/B
switch
Power supply A main switch
Supply A contactor
Supply line selector relay Supply B contactor
Supply A line monitor
Power supply B main switch
28 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
0000380408_C
ACCU301 and ACCU302
Item Description Item Description
Crank case heater power transformer Crank case heater power transformer
switch
Low temperature kit fuse block
Terminal block
Crank case heater switch
Fan motor switch
Compressor variable-speed drive
switch
Main switch
990-91356B-001 29
ACRD300 and ACCU300 Series Technical Data
0000373721_C
ACCU301D and ACCU302D
Item Description Item Description
Crank case heater power transformer Supply A line monitor
Low temperature kit fuse block Supply B line monitor
Terminal block
Supply A contactor timer
Crank case heater switch Supply B contactor timer
Crank case heater power transformer
ATS circuit fuse
switch
Fan motor switch
Compressor variable-speed drive
Supply line selector A/B
Supply A contactor
switch
Power supply A main switch
ATS supply A power transformer
Supply B contactor
Power supply B main switch
Supply line selector relay ATS supply B power transformer
30 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Performance Specifications
Cooling Capacity
Operating Conditions Sensible Net Capacity – kW
(BTU/h)
GB19413 16.3 (55,600)
ASHRAE 127 Class 3 25 (85,300) 3.2 SCOP
Maximum at 35°C (95°F) Return
Air Temperature
Maximum at 40°C (104°F) Return
Air Temperature
*If lower than the minimum load, the unit may cycle the compressor.
NOTE: Outdoor air temperature is 35°C (95°F) unless otherwise stated.
NOTE: Data is for evaporator fans, condenser fans, and compressors operating at maximum capacity.
NOTE: Refer to Unicalc for data at other operating conditions.
27 (92,100)
30 (102,400)
Energy Efficiency (W/W)
4.0 AEER
—
—
990-91356B-001 31
ACRD300 and ACCU300 Series Technical Data
General Data
Indoor Units
Air System—Fan
Fan Type
EC
Size – mm (in.) 220 (8.7)
Number of Fans
8
Air Volume – CMH (SCFM) 5440 (3200)
Fan Power – W (total)
Emergency Air Volume* – CMH (SCFM)
*
850
6300 (3700)
Cooling Coil
2
Face Area – m
(ft2) 0.51 (5.49)
Rows Deep 3
Filters—Washable (Standard)
Quantity
2
Size – mm (in.) 238 x 933 (9.375 x 36.75)
Depth – mm (in.) 12.7 (0.5)
Efficiency
MERV 1
Filters—Pleated (Optional)
Quantity
2
Size – mm (in.) 238 x 933 (9.375 x 36.75)
Depth – mm (in.) 51 (2)
Efficiency
MERV 8
Physical Data
Height – mm (in.) 1991 (78.39)
Width – mm (in.) 300 (11.81)
Depth – mm (in.) 1095 (43.11)
Connection Sizes (Not Piping Sizes)
Suction Piping 1 1/4 in. (12 UNF), 7/8 in. tube
Liquid Piping
1 in. (14 UNS), 1/2 in. tube
Condensate Drain 4.77 mm (3/16 in.) ID
6.35 mm (1/4 in.) OD
Humidifier Water Supply Line 1/4 in.
Humidification (ACRD301P only)
Flush Cycle
Automatic
Capacity – kg/hr (lb/hr) 3 kg/hr (6.6 lb/hr)
Reheat—Electric (ACRD301P only)
Capacity – kW (BTU/hr) 3 kW (10,200 BTU/hr) @ 220 V
Refrigerant
32 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Type R410A
Standard Charge for ACRD300x and
11.3 (24.9)
ACRD301x Models – kg (lb)
Standard Charge for ACRD306x and
18.8 (43.0)
ACRD307x Models – kg (lb)
Standard Charge with ACAC75016/ACAC75017
29.3 (64.6)
Installed – kg (lb)
*Emergency air flow is available with dual fan power supplies and a humidity sensor.
Outdoor Units
Air System—Fan
Fan Type
Size – mm (in.) 710 (28.0)
Number of Fans 1
Cooling Coil
Face Area – m
Rows Deep 3
Physical Data
2
(ft2) 3.024 (32.55)
EC
Height – mm (in.) 1555 (61.2)
Width – mm (in.) 1000 (39.4)
Depth – mm (in.) 1000 (39.4)
Connection Sizes (Not Piping Sizes)
Gas Piping 7/8 in. ODF
Liquid Piping
Refrigerant Piping*
Maximum Equivalent Length – m (ft) 120 (393)
Maximum Elevation** – m (ft) 30 (98)
*See the Installation Manual for more information.
**Condensing units may be level with or higher than the indoor unit.
See the Installation Manual for more information on refrigerant piping.
1/2 in. ODF
990-91356B-001 33
ACRD300 and ACCU300 Series Technical Data
Electrical Data
Indoor Units
Model
ACRD301S 20.3* / 9.3** 25.0* / 15.0** 16.5–13.8* / 8.0–6.7**
ACRD301P
*Data for units with 100–120-V~ power supplies.
**Data for units with 200–240-V~ power supplies.
MCA MOP
41.75 45.0 28.5
FLA
Outdoor Units
Model
ACCU300
ACCU300D 50.05 80 n/a
ACCU301 23.1 40 n/a
ACCU301D
ACCU302 n/a n/a
ACCU302D n/a n/a
MCA MOP
50.05 80
23.1 40
FLA
n/a
n/a
15.8
15.8
34 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
Sound Data
Indoor Units—All Units
Fan Speed
%
30 430 (900) 36.5 36.1 44.7 46.3 40.3 35.8 22.9 49.8
40 610 (1300) 36.2 42.1 52.6 51.2 47.7 45.9 34.3 56.4
50 780 (1650) 30.2 48.8 54.7 61.5 53.1 52.0 42.8 63.4
60 940 (2000) 32.9 55.2 56.0 62.3 57.7 56.2 48.3 65.4
70 1110 (2350) 33.8 60.3 59.3 65.7 62.1 59.5 52.9 69.2
80 1240
90 1390
100 1510
130** 1750
*Weighted Sound Pressure (dBA) data is measured in a semi-anechoic room in accordance with ISO 3745, at 1.8-m (6.0-ft) distance from
the unit and 1-m (3.3-ft) height.
**130% speed is only for the emergency free-cooling option. When the return temperature rises above the set temperature, the emergency
free-cooling will allow the fans to run at 130% and provide more airflow. When it is planned to have a unit operate at 130% speed, the unit
must have two power supplies and the humidity sensor.
Airflow –
l/s (SCFM)
34.6 61.8 63.5 71.9 64.1 63.0 56.8 73.9
(2700)
35.1 54.3 67.9 72.3 68.1 65.9 60.1 75.4
(2950)
43.1 53.8 70.0 73.3 70.1 68.9 62.9 77.1
(3200)
44.8 55.1 77.5 74.4 74.1 70.3 63.6 80.9
(3700)
Weighted Sound Pressure dBA* at Frequency – Hz re: 20μPa
125 250 500 1000 2000 4000 8000 dBA*
Lp Sound
Pressure – dB
re: 20μPa
Outdoor Units—All Units
Fan Speed
%
70 5400 Without 39.6 56.3 54.8 56.6 55.8 55.5 47.2 63.0
100 6000 Without 41.7 54.8 55.4 56.5 56.6 57.9 48.4 63.6
70 5400 With 38.3 52.7 52.3 54.3 51.2 50.1 41.1 59.5
100 6000 With 41.4 53.6 54.5 55.8 53.2 53.6 43.3 61.4
*Weighted Sound Pressure (dBA) data is measured in a semi-anechoic room in accordance with ISO 3745, at 2.0-m (6.6-ft) distance from
the unit and 1-m (3.3-ft) height.
Compressor
RPM
Acoustic
Hood
Weighted Sound Pressure dBA* at Frequency – Hz re: 20μPa
125 250 500 1000 2000 4000 8000 dBA*
Lp Sound
Pressure – dB
re: 20μPa
990-91356B-001 35
ACRD300 and ACCU300 Series Technical Data
na6955b
1095 (43.11)
300 (11.80)
1991 (78.39)
1137 (44.76)
661 (26.02)
2152 (84.72)
Dimensions and Weights
Indoor Unit
NOTE: Image is an example only to show dimensions of unit: your unit may
differ.
SKU
Net Weight
– kg (lb)
Shipping Weight
– kg (lb)
ACRD301S 160.0 (352.7) 200.0 (440.9)
ACRD301P 173.5 (382.5) 213.5 (470.7)
36 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
A
B
C
A
B
C
na6956a
Outdoor Unit
SKU Unit Dimensions – mm (in.) Shipping Dimensions – mm (in.) Net Weight –
A B C A B C
ACCU300 1000
(39.4)
ACCU300D 1000
(39.4)
ACCU301 1000
(39.4)
ACCU301D 1000
(39.4)
ACCU302 1000
(39.4)
ACCU302D 1000
(39.4)
1000
(39.4)
1000
(39.4)
1000
(39.4)
1000
(39.4)
1000
(39.4)
1000
(39.4)
1555
(61.2)
1555
(61.2)
1555
(61.2)
1555
(61.2)
1555
(61.2)
1555
(61.2)
1136
(44.7)
1136
(44.7)
1136
(44.7)
1136
(44.7)
1136
(44.7)
1136
(44.7)
1085
(42.7)
1085
(42.7)
1085
(42.7)
1085
(42.7)
1085
(42.7)
1085
(42.7)
1745
(68.7)
1745
(68.7)
1745
(68.7)
1745
(68.7)
1745
(68.7)
1745
(68.7)
kg (lb)
267 (588.6) 297 (654.8)
272 (600.0) 305 (672.4)
267 (588.6) 297 (654.8)
272 (600.0) 305 (672.4)
273 (601.9) 303 (668.0)
278 (612.9) 308 (679.0)
Shipping
Weight – kg
(lb)
990-91356B-001 37
ACRD300 and ACCU300 Series Technical Data
na5810a
900 (36.00)
900 (36.00)
1
2
00 (48.00)
1200 (48.00)
SERVICE ACCESS REQUIRED
WHEN EQUIPMENT IS
INSIDE THE ROW
FREE SPACE NEEDED TO
MOVE EQUIPMENT
OUTSIDE THE ROW
Service Access
Indoor Unit
A minimum of 900 mm (36 in.) of clear floor space in front of and behind the
equipment is recommended for service access. All required normal maintenance
is performed from the front and rear of the equipment.
Most of the cooling components in the equipment can be replaced while the unit is
installed in row and without the use of heavy lift equipment or a welding torch.
However, if it is necessary to remove the unit for repair, use the casters on the
equipment to remove it from the row. An area of minimum 1200 mm (48 in.) of
clear floor space in front of or behind the equipment is recommended to roll out
the equipment.
NOTE: Check local and national codes and regulations for further service
access requirements.
NOTE: Image is an example only: your unit may differ.
NOTE: Dimensions are shown in mm (in.).
38 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
1m (39 in.)
1m (39 in.)
1m (39 in.)
1m (39
in
.)
1m (39 in.)
na6963a
na7029a
> 1 m
(3.3 ft)
> 1 m (3.3 ft)
> 3 m (9.8 ft)
Outdoor Unit
A minimum of 1 m (39 in.) of clear space on all sides of the equipment is
recommended for service access.
Airflow Clearance
The following clearances are required for proper airflow around the outdoor unit.
990-91356B-001 39
ACRD300 and ACCU300 Series Technical Data
TOP VIEW
BOTTOM VIEW
(LOOKING UP)
na6957b
56.5 (2.2)
47.8 (1.9)
55.1 (2.2)
73.5 (2.9)
87.3 (3.4)
78.4
(3.1)
123.4 (4.9)
182.8 (7.2)
150.4
(5.9)
190.4 (7.5)
227.0 (8.9)
274.0 (10.8)
148.8 (5.6)
157.9 (6.2)
213.6 (8.4)
102.0 (4.0)
73.5 (2.9)
55.1 (2.2)
62.8 (2.5)
188.8 (7.4)
111 (4.37)
101.7 (4.0)
463.0 (18.2)
88.8
(3.5)
Piping and Electrical Access Locations
Indoor Unit
ACRD301S
40 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
TOP VIEW
BOTTOM VIEW
(LOOKING UP)
na6958b
Item Description
Low voltage input wiring inlets
Power supply 1 inlet
Power supply 2 inlet
Suction line connection—1 1/4 in. (12 UNF)
Liquid line connection—1 in. (14 UNS)
Condensate drain line outlet
Gravity drain connection
990-91356B-001 41
ACRD300 and ACCU300 Series Technical Data
TOP VIEW
BOTTOM VIEW
(LOOKING UP)
na6957c
46.0 (1.8)
47.8 (1.9)
55.1 (2.2)
73.5 (2.9)
116.3 (4.6)
78.4
(3.1)
123.4 (4.9)
182.8 (7.2)
137.4 (5.4)
142.1 (5.6)
180.1 (7.1)
148.8 (5.6)
167.9 (6.6)
213.6 (8.4)
73.5 (2.9)
55.1 (2.2)
62.8 (2.5)
188.8 (7.4)
111 (4.37)
101.7 (4.0)
463.0 (18.2)
88.8
(3.5)
104.8 (4.1)
76.3 (3.0)
123.0 (4.8)
224.4 (8.8)
106.9
(4.2)
ACRD301P
42 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
TOP VIEW
BOTTOM VIEW
(LOOKING UP)
na6958c
Item Description
Condensate drain line outlet
Humidifier water supply inlet connection—1/4-in. NPT or 1/4-in. BSPT
Power supply 1 inlet
Power supply 2 inlet
Low voltage input wiring inlets
Suction line connection—1 1/4 in. (12 UNF)
Liquid line connection—1 in. (14 UNS)
Gravity drain connection
990-91356B-001 43
ACRD300 and ACCU300 Series Technical Data
na6961a
309.3 (12.2)
371.0 (14.6)
105.6 (4.2)
121.8 (4.8)
169.0 (6.7)
206.5 (8.1)
259.3 (10.2)
Outdoor Unit
44 990-91356B-001
Technical Data ACRD300 and ACCU300 Series
na6962a
NOTE: Dimensions are shown in mm (in.).
Item Description
Power supply 1 inlet
Power supply 2 inlet
Communication cable inlet
Liquid receiver connection outlet
Liquid line connection inlet
Suction line connection inlet
990-91356B-001 45
ACRD300 and ACCU300 Series Technical Data
na2543c
BOTTOM PIPING TOP PIPING
CONDENSING UNIT
CONDENSING UNIT
DX
UNIT
RECEIVER
RECEIVER
HOT GAS
HOT GAS
LIQUID
LIQUID
DX
UNIT
Refrigeration Piping Diagram
ACRD301P, ACRD301S
Item Description Item Description
Pitch in direction of refrigerant flow; 4 mm
per m (1/2-in. per 10 ft)
Reduction of piping diameter for vertical
piping run (if necessary)
Shut-off valve S-trap
Head pressure control valve Inverted P-trap
Pressure relief valve
Check valve
P-trap
46 990-91356B-001
Worldwide Customer Support
Customer support for this or any other product is available at no charge in any of the
following ways:
• Visit the Schneider Electric Web site to access documents in the Schneider
Electric Knowledge Base and to submit customer support requests.
- www.schneider-electric.com (Corporate Headquarters)
Connect to localized Schneider Electric Web sites for specific countries, each of
which provides customer support information.
- www.schneider-electric.com/support/
Global support searching Schneider Electric Knowledge Base and using
esupport.
• Contact the Schneider Electric Customer Support Center by telephone or e-mail.
Local, country-specific centers: go to www.schneider-electric.com/support/
contactwww.schneider-electric.com > Support > Operations around the
world for contact information.
For information on how to obtain local customer support, contact the representative
or other distributors from whom you purchased your product.
Schneider Electric
35 rue Joseph Monier
92500 Rueil Malmaison
France
+ 33 (0) 1 41 29 70 00
https://www.se.com
As standards, specifications, and design change from time to time,
please ask for confirmation of the information given in this publication.
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990-91356B-001
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