Schneider Electric Uniflair Rack Mounted 3.5 kW 50Hz User Guide

Rackmount 3.5-kW Air Conditioning Unit
User Manual
ACRMD4KI-1, ACRMD4KI-2, ACRMD4KI-3
990-6186-001
Release Date: 06/2019
www.schneider-electric.com
Legal Information
The Schneider Electric brand and any trademarks of Schneider Electric SE and its
subsidiaries referred to in this guide are the property of Schneider Electric SE or its
subsidiaries. All other brands may be trademarks of their respective owners.
This guide and its content are protected under applicable copyright laws and
furnished for informational use only. No part of this guide may be reproduced or
transmitted in any form or by any means (electronic, mechanical, photocopying,
recording, or otherwise), for any purpose, without the prior written permission of
Schneider Electric.
Schneider Electric does not grant any right or license for commercial use of the guide
or its content, except for a non-exclusive and personal license to consult it on an "as
is" basis. Schneider Electric products and equipment should be installed, operated,
serviced, and maintained only by qualified personnel.
As standards, specifications, and designs change from time to time, information
contained in this guide may be subject to change without notice.
To the extent permitted by applicable law, no responsibility or liability is assumed by
Schneider Electric and its subsidiaries for any errors or omissions in the informational
content of this material or consequences arising out of or resulting from the use of the
information contained herein.
Table of Contents
Safety ............................................................................................................5
Important Safety Instructions — SAVE THESE INSTRUCTIONS....................5
Safety During Installation and Operation.......................................................6
Intended Use ........................................................................................8
General Information ....................................................................................9
Document Overview ...................................................................................9
Original Instructions ..............................................................................9
Save These Instructions ........................................................................9
Manual Updates ...................................................................................9
Cross-Reference Symbol Used in This Manual........................................9
Abbreviations .......................................................................................9
Equipment Disposal....................................................................................9
General Information ..............................................................................9
Please Recycle...................................................................................10
Waste Electrical and Electronic Equipment (WEEE) Disposal.................10
Receiving and Inspecting the Unit ..............................................................10
Filing a Claim......................................................................................10
Storing the Unit Before Installation .............................................................10
Unpacking the Unit ................................................................................... 11
Moving the Unit ........................................................................................ 11
Unit Overview ............................................................................................12
Introduction ..............................................................................................12
Equipment Guidelines...............................................................................13
Working Conditions and Environmental Limits.......................................13
Standard Features and Options .................................................................14
Standard Features ..............................................................................14
Optional Features ...............................................................................15
Technical Data....................................................................................15
Dimensions and Weights .........................................................................17
Indoor Unit ...............................................................................................17
Outdoor Units...........................................................................................17
Weight .....................................................................................................18
Service Clearance ....................................................................................18
Airflow Clearance .....................................................................................18
Access Locations .....................................................................................19
Component Identification .........................................................................20
Inventory..................................................................................................20
External Components ...............................................................................20
Indoor Unit .........................................................................................20
Outdoor Unit.......................................................................................21
Internal Components ................................................................................22
Indoor Unit .........................................................................................22
Outdoor Unit.......................................................................................23
Installation ..................................................................................................24
Site Preparation .......................................................................................24
Incoming Power Supply Requirements .................................................24
Before You Start .......................................................................................24
990-6186-001
3
Positioning Units.......................................................................................25
Panel Removal.........................................................................................26
Indoor Unit .........................................................................................26
Outdoor Unit.......................................................................................27
Display Interface.......................................................................................28
Mechanical Connections ...........................................................................28
Installing the Indoor Unit in the Rack.....................................................28
Installing the Outdoor Unit ...................................................................29
Piping Kit Application ..........................................................................30
Refrigerant Piping ...............................................................................31
Drain Connection ................................................................................36
Electrical Connections ..............................................................................37
Wire Cross-Section Ratings.................................................................38
Connection Interface.................................................................................39
Charging the Refrigeration System ............................................................42
Leak Detection ...................................................................................42
Vacuum Pumping................................................................................43
Calculating the Refrigerant Charge.......................................................44
Charging the Refrigerant .....................................................................45
Commissioning ..........................................................................................46
Start-Up Inspection Checklist ....................................................................46
Electrical Inspection Checklist ...................................................................47
Mechanical Inspection Checklist ................................................................48
Operation ...................................................................................................49
Using the Display......................................................................................49
Maintenance ..............................................................................................56
Preventive Maintenance............................................................................56
4
990-6186-001
Safety
Safety
Important Safety Instructions — SAVE THESE INSTRUCTIONS
Read these instructions carefully and look at the equipment to become familiar
with it before trying to install, operate, service or maintain it. The following safety
messages may appear throughout this manual or on the equipment to warn of
potential hazards or to call attention to information that clarifies or simplifies a
procedure.
The addition of this symbol to a “Danger” or “Warning” safety
message indicates that an electrical hazard exists which will
result in personal injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages with this
symbol to avoid possible injury or death.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
Failure to follow these instructions will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
Failure to follow these instructions can result in injury or equipment
damage.
NOTICE
NOTICE is used to address practices not related to physical injury. The safety
alert symbol shall not be used with this type of safety message.
Failure to follow these instructions can result in equipment damage.
Please Note
Electrical equipment should only be installed, operated, serviced, and maintained
by qualified personnel. No responsibility is assumed by Schneider Electric for any
consequences arising out of the use of this material.
A qualified person is one who has skills and knowledge related to the construction,
installation, and operation of electrical equipment and has received safety training
to recognize and avoid the hazards involved.
990-6186-001
5
Safety
Safety During Installation and Operation
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
•
Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices.
•
This equipment must be installed and serviced by qualified personnel only.
•
Turn off all power supplying this equipment before working on or inside the
equipment.
•
Replace all devices, doors, and covers before turning on power to this
equipment.
•
Always use a properly rated voltage sensing device to confirm power is off.
•
If the power supply cord is damaged, it must be replaced by an equivalent
cord or assembly available from the manufacturer or its service agent.
Failure to follow these instructions will result in death or serious injury.
WARNING
ELECTRICAL HAZARD
•
Electrical service must conform to local and national electrical codes and
regulations.
•
The equipment must be grounded.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
WARNING
HAZARD FROM MOVING PARTS
Keep hands, clothing, and jewelry away from moving parts. Check the
equipment for foreign objects before closing the doors and starting the
equipment.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
WARNING
DAMAGE TO EQUIPMENT OR PERSONNEL
•
The equipment is heavy. For safety purposes, adequate personnel must be
present when moving this item.
•
The load must always be solidly anchored to the bearing element of the
lifting equipment and means of transport.
•
No one should be near the suspended load, nor in the working area of the
crane, forklift, truck, or any other lifting equipment or means of transport.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
6
990-6186-001
Safety
WARNING
HAZARD TO EQUIPMENT OR PERSONNEL
This equipment is not to be operated or installed by persons with reduced
physical, sensory, or mental capabilities, or persons lacking experience or
knowledge unless they have been given supervision or instruction. Children are
not to operate or play on or around this equipment.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
CAUTION
HAZARD FROM UNPROTECTED OUTPUT
Apply circuit protection to all outputs.
Failure to follow these instructions can result in injury or equipment
damage.
CAUTION
HAZARD TO EQUIPMENT OR PERSONNEL
Do not operate your air conditioner in a wet room such as a bathroom or laundry
room.
Failure to follow these instructions can result in injury or equipment
damage.
NOTICE
STATIC ELECTRICITY HAZARD
Circuit boards contained within this unit are sensitive to static electricity. Use
one or more electrostatic-discharge devices while handling the board.
Failure to follow these instructions can result in equipment damage.
NOTICE
DAMAGE FROM EXPOSURE
Leaving the equipment uncovered and exposed to possible damage from the
environment will void the factory warranty.
Failure to follow these instructions can result in equipment damage.
NOTICE
DAMAGE TO REFRIGERATION CIRCUIT
•
Make sure the compressor has been pre-heated for at least 24 hours in the
event the system is not in operation for an extended period of time.
Failure to follow these instructions can result in equipment damage.
990-6186-001
7
Safety
NOTICE
DAMAGE TO EQUIPMENT
•
If the power supply cord is damaged, it must be replaced by the
manufacturer.
•
An all-pole disconnection device that has at least 3-mm clearances in all
poles and has a leakage current that may exceed 10 mA, the residual
current device (RCD) having a rated residual operating current not
exceeding 30 mA, and disconnection must be incorporated in the fixed
wiring in accordance with the wiring rules.
•
Type and rating of fuses: glass tube 250 V, 3.15 A
Failure to follow these instructions can result in equipment damage.
Intended Use
The cooling units provide air conditioning within the limits and methods described
in this manual. This equipment must be installed and applied in accordance with
the instructions provided. No modifications may be made to the units or their parts
without explicit written consent from Schneider Electric. Any mechanical or
electrical modification voids factory warranty.
8
990-6186-001
General Information
General Information
Document Overview
Original Instructions
These are the original instructions provided by the manufacturer.
Save These Instructions
This manual contains important instructions that must be followed during
installation, operation, and maintenance of the cooling unit.
Manual Updates
Schneider Electric™ policy is one of continuous technological innovation and the
company reserves the right to amend any data herein without prior notice. The
images shown in this manual are for descriptive purposes only and they may differ
from specific models that are selected.
NOTE: Unit images and component identification information are examples
only. The final configuration of the unit may change according to the different
options.
Check for updates to this manual on the Schneider Electric Web site,
www.schneider-electric.com/support. Select the Download Documents and
Software link under the Support tab and enter the manual part number or SKU
for your equipment in the search field. See the back cover of this manual for the
part number.
Cross-Reference Symbol Used in This Manual
See another section of this document or another document for more
information on this subject.
Abbreviations
The following abbreviations and terms are used in this manual:
•
CFD: Computational fluid dynamics
•
EXV: Electronic expansion valve
•
PTC: Positive Temperature Coefficient
Equipment Disposal
General Information
990-6186-001
•
This air-conditioning unit contains fluorinated greenhouse gases.
•
Installation, servicing, maintenance, and repair of this unit must be performed
by qualified personnel.
•
Un-installation and recycling of the product must be performed by qualified
personnel.
•
When the unit is checked for leaks, proper record keeping of all checks is
strongly recommended.
9
General Information
Please Recycle
The shipping materials are recyclable. Save them for later use, or dispose of them
appropriately.
Waste Electrical and Electronic Equipment (WEEE) Disposal
Schneider Electric products comply with international directives on
the Restriction of Hazardous Substances (RoHS) in electronic and
electrical equipment and the disposal of Waste Electrical and
Electronic Equipment (WEEE). Dispose of any waste electronic or
electrical equipment with the appropriate recycling center. Contact
Schneider Electric for assistance.
Receiving and Inspecting the Unit
The cooling unit is packaged in a wooden crate or anchored to a pallet and
covered with transparent film.
Upon delivery, check that the unit is intact and immediately notify the carrier in
writing of any damage that can be attributed to careless or improper
transportation. Check for any damage on the area upon which the display
interface is mounted.
In case of shipping damage, do not operate the cooling unit. Keep all packaging
for inspection by the shipping company and contact Schneider Electric
Corporation.
Filing a Claim
If damage is identified on receipt of the equipment, note the damage on the bill of
lading and file a damage claim with the shipping company. Contact Schneider
Electric Worldwide Customer Support at one of the numbers listed on the Web
page on the back page of this manual for information on how to file a claim with
the shipping company. The shipping claim must be filed at the receiving end of the
delivery.
NOTE: In case of shipping damage, do not operate the equipment. Keep all
packaging for inspection by the shipping company and contact Schneider
Electric.
Storing the Unit Before Installation
NOTICE
DAMAGE FROM EXPOSURE
Leaving the equipment uncovered and exposed to possible damage from the
environment will void the factory warranty.
Failure to follow these instructions can result in equipment damage.
The storage environment for the series AC should comply with GB4798.1-2005.
Item
Storage environment
Ambient humidity
Ambient temperature
10
Requirements
Indoor, clean (without dust)
15–85％RH (without condensation)
–20 to 52℃ (–4 to 129.2°F)
990-6186-001
General Information
Unpacking the Unit
Move the unit near its final position before unpacking it for inspection.
The unit is packed with corrugated paper. Remove all packing materials on site.
Moving the Unit
WARNING
DAMAGE TO EQUIPMENT OR PERSONNEL
•
The equipment is heavy. For safety purposes, adequate personnel must be
present when moving this item.
•
The load must always be solidly anchored to the bearing element of the
lifting equipment and means of transport.
•
No one should be near the suspended load, nor in the working area of the
crane, forklift, truck, or any other lifting equipment or means of transport.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
Lifting and transporting the units must be carried out by qualified personnel as
described in this manual.
Use all relevant safety standards to prevent any possible damage to people or
objects.
Indoor Unit
The cooling unit is packaged in a carton. The recommended tools for moving and
installing the equipment include the following:
Forklift
Pallet Jack
Outdoor Unit
The condensing unit is packaged in a carton. The recommended tools for moving
and installing the equipment include the following:
Pallet Jack
Forklift
Crane
105°
990-6186-001
75°
na91282-30
Keep the inclination of the outdoor unit within 75–105 degrees.
11
Unit Overview
Unit Overview
Introduction
This AC unit series, an air conditioning system of precision environmental control
in a server cabinet, provides precise temperature control, safety and reliability,
high energy efficiency design, and remote monitoring.
This series also features efficient refrigeration, high reliability, high sensible-heat
factor, intelligent monitoring, rapid installation, convenient maintenance, and
compact structure. R410A refrigerant is used as required internationally for
environmental protection.
Precise Temperature Control
This series of air conditioners has a temperature control of up to ±2.0°C (3.6°F).
Intelligent microprocessing control monitors any change in the server cabinet and
responds with control processing in advance rather than reacting to the change of
the environment at that time.
Safety and Reliability
Keep the unit running 24 hours a day to keep it reliable. The advanced
microprocessing system of the units automatically adjusts machine operation and
reduces faults. Automatic alarms and diagnostics aid in maintenance and
servicing to help protect the unit and prolong the life of the unit.
High Energy Efficiency Design
The DC brushless, axial flow, centrifugal fan features minimal vibration, low noise,
and high reliability. The high-efficiency, finned-tube heat exchanger greatly
improves the heat exchange efficiency. The loop developed and verified to a
specific model ensures each loop is uniformly distributed and the heat exchanger
is fully used.
Remote Monitoring
Remote monitoring includes an RS485 interface and Modbus protocol.
•
Telemetry Function: Remotely read the return and supply air temperature,
humidity of return, and working state of the unit.
•
Remote Function: Remotely read the open and close state, high or low
temperature and return air humidity, and normal or failure fan state.
•
Temperature Control Function
Cooling Control
◦
•
•
12
Indoor temperature controls system
Cooling Regulation Function
◦
Variable-speed compressor
◦
Cooling output range of 25–100% (16–90Hz)
Temperature
◦
Regulated temperature range of 19–30°C (66.2–86.0°F)
◦
Adjustable temperature ±2.0°C (3.6°F)
990-6186-001
Unit Overview
Equipment Guidelines
Working Conditions and Environmental Limits
Indoor Unit
Limit Working Conditions
Power Supply
200–240 V~, 1 Ph, 50 Hz
Room Conditions
Temperature
16–43℃ (60.8–109.4°F)
Humidity
15％–65％RH (without condensation)
Maximum Altitude
1000 m (3281 ft), de-rated for more than
1000 m (3281 ft)
Storage Conditions
Temperature
–20 to 52℃ (–4.0 to 129.2°F)
Outdoor Unit
Limit Working Conditions
Power Supply
200–240 V~, 1 Ph, 50 Hz
Ambient Conditions
Temperature
–35.0 to 45.0°C (–31.0 to 113.0°F)
Maximum Altitude
1000 m (3281 ft), de-rated for more than
1000 m (3281 ft)
Storage Conditions
Temperature
990-6186-001
–20 to 52℃ (–4.0 to 129.2°F)
13
Unit Overview
Standard Features and Options
Standard Features
Indoor Unit
Feature
Description
Evaporator
The finned tube heat exchanger with high-efficiency
internal thread copper pipes, hydrophilic foil, CFD flow
field analysis, and optimal matching improve the heat
transfer efficiency.
EXV
The EXV improves the control precision and response
speed for precision cooling while the system is stable to
save energy.
Fan
The DC fan is continuously variable in speed and can
quickly respond to heat loads. It features high airflow,
high efficiency, long service life, and low noise.
Controller
The unit controller features power recovery and fault
warning. It has a terminal block connection interface.
Filter
The aluminum air filter provides a clean air supply.
Outdoor Unit
14
Feature
Description
Compressor
The inverter-driven compressor adjusts the refrigerating
capacity. The frequency conversion control technology of
the compressor and the air supply temperature control of
the unit enable the unit to flexibly adjust the refrigerating
capacity under different heat loads, to provide a constant
supply of air temperature, and reduce air temperature
fluctuations. The running frequency of the compressor
may be minimized under low thermal load conditions to
ensure that the supply air temperature of the unit does not
drop too low, and the compressor can be prevented from
frequent start and stop to improve the efficiency and
reliability of the unit and avoid condensation resulting from
too low supply air temperature.
Fan
An axial flow, low-noise fan blade features wide voltage
range and high reliability. The fan has multi-level air flow
control, which improves the operation stability of the unit.
Condenser
Efficient finned-tube heat exchanger with hydrophilic fins
does not retain dust and is easy to clean and maintain.
990-6186-001
Unit Overview
Optional Features
Feature
Description
Tube
The copper tube includes threaded joints, bell nuts, and
insulation material for the outer package. The tube is sturdy,
does not corrode easily, and withstands high temperature
and high pressure.
Condensate
Drain Pump
The low noise DC brushless water pump has a lift that
reaches 5 meters (16.4 ft).
Low Ambient
Temperature Kit
The low ambient temperature kit provides the capability to
operate in temperatures below –15°C (–5°F).
Positive
Temperature
Coefficient
(PTC) Heater
The structure is compact and the heating is uniform.
The PTC heater installed in the indoor unit is used for heat
compensation when the IT load is low.
Technical Data
Indoor Unit
Total Cooling Capacity
3.6 kW (12,300 BTU/hr)
Sensible Cooling Capacity*
3.5 kW (11,900 BTU/hr)
Rated Power Input
200–240 V~, 1 Ph, 50 Hz
Rated Air Volume
700 m3/h (410 SCFM)
Number of Fans
1
IDU Fan Input Power
0.43 kW
Size of Liquid Pipe/Air Pipe
Connection
9.52/12.7 mm (0.37/0.50 in.)
Energy Efficiency Ratio (EER)
2.5
Sound Pressure Level
62.5 dB(A)
*Data at 35°C (95°F) RAT, 23%RH, outdoor air temperature 35°C (95°F)
Outdoor Unit
990-6186-001
Heat Exchange
6.3 kW
Rated Air Volume
1700 m3/h (1000 SCFM)
Input Power
1.00 kW
Number of Fans
1
Number of Compressors
1
Sound Pressure Level
51.5 dB(A)
15
Unit Overview
Refrigerant
16
Refrigerant Type
R410A
Refrigerant Charge
1.65 kg (58.2 oz)
CO2 Equivalent
3.445 tonnes (7594.9 lb)
GWP
2088
990-6186-001
Dimensions and Weights
Dimensions and Weights
Indoor Unit
9.6)
752 (2
218
(8.6)
484 (19.1)
na6186-02a
FRONT OF UNIT
NOTE: Display interface is optional.
Outdoor Units
856
(33.7
)
1.7)
296 (1
359 (14.1)
990-6186-001
na91282-31a
617
(24.3)
17
Dimensions and Weights
Weight
Unit
Operating Weight – kg (lb)
Indoor unit
26 kg (57.3 lb)
Outdoor unit
48 kg (105.8 lb)
Service Clearance
m
600 m
)
in.)
na91282-33a
m (24
600 m
(24 in.
Airflow Clearance
≥0.5 m
(≥1.5 ft)
≥0.5 m
(≥1.5 ft)
≥2 m
(≥6.5 ft)
na91282-34a
≥0.5 m
(≥1.5 ft)
18
990-6186-001
Dimensions and Weights
Access Locations
Indoor Unit
68 (2.7)
121 (4.8)
40 (1.6)
na91282-35a
15 (0.6)
175 (6.9)
63 (2.5)
Item
Description
Suction line valve
Liquid line valve
Condensate drain line
990-6186-001
19
Component Identification
Component Identification
na6186-03a
Inventory
Item
Description
Quantity
Indoor unit
1
Outdoor unit
1
Mounting bracket
2
M4x12 screw
2
Condensate drain hose
1
Hose clamp
1
External Components
na6186-04a
Indoor Unit
Item
20
Description
Mounting flange
Grille
Suction line valve
Liquid line valve
Item
Description
Mounting bracket (field installed)
Condensate drain line
Handle
Display interface (field installed)
990-6186-001
Component Identification
na91282-37a
Outdoor Unit
Item
Description
Electrical panel access cover
Suction line valve
Liquid line valve
Mounting support
Fan protection grille
990-6186-001
21
Component Identification
Internal Components
na6186-05a
Indoor Unit
Item
22
Description
Supply air temperature sensor
Electronic expansion valve (EXV)
Centrifugal fan
Connection access box
Condensate drain pan
Evaporative coil
Item
Description
Temperature and humidity sensor
Air filter
Isolated data repeater
Suction line temperature sensor
Electrical box
Electric heater
990-6186-001
Component Identification
na91282-59a
Outdoor Unit
Item
990-6186-001
Description
Accumulator
Filter
Suction temperature sensor
Service port
High pressure switch
Electrical panel
Item
Description
High pressure sensor
Discharge temperature sensor
Low pressure sensor
Compressor
Electronic expansion valve (EXV)
23
Installation
Installation
Site Preparation
Follow these guidelines to prepare the site for installation.
•
Moisture proof and insulate the room to ensure the normal functioning of the
environmental control system inside the room.
•
Use polyethylene film for the moisture barrier on the ceilings and walls.
•
Use moisture-proof paints on the concrete walls and floor.
•
Minimize the entry of the outdoor air into the IT space as outdoor air may
increase heating, cooling, and humidification and dehumidification loads of
the system. Maintain intake of outdoor air below 5% of the circulating air.
•
Fully enclose all doors and windows with minimized gaps.
Incoming Power Supply Requirements
WARNING
ELECTRICAL HAZARD
•
Electrical service must conform to local and national electrical codes and
regulations.
•
The equipment must be grounded.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
•
The main power requirement is 200–240 V/50 Hz.
•
Ensure the electrical connection of the unit allows for the total load of the unit
and its optional components. The difference between external static pressure
of the unit and that of a standard unit may lead to changes in its input power
and current. For the total input power and the total current, see the
nameplate.
•
The incoming power wire must have a circuit breaker of enough capacity with
a contact opening distance of at least 3 mm (0.11 in.).
•
Provide each unit with an independent power supply with power supply cut-off
and over-current protection devices.
•
Before wiring, ensure the power supply conforms to the specified value on the
nameplate.
•
Keep the wires away from the cooling line and the moving parts of the
compressor, fan, and motor.
Before You Start
The outdoor unit has been charged with refrigerant in the factory, and the indoor
unit has been filled with a nitrogen holding charge. If you need to check the gas,
do the following:
NOTE: Outdoor unit model ACRMD4KI-3 is not charged with refrigerant in the
factory.
1. Open the shutoff valve.
2. Press the needle valve side of the service valve and check for gas ejection.
3. Connect a pressure gauge to get an accurate reading.
24
990-6186-001
Installation
Positioning Units
Outdoor Unit
CAUTION
HAZARD FROM SHARP EDGES
Many metal parts have sharp edges. Be careful and wear protective gloves and
clothing when working around and inside the equipment.
Failure to follow these instructions can result in injury or equipment
damage.
CAUTION
DAMAGE TO EQUIPMENT OR PERSONNEL
Use concrete or a supporting frame to build a base for the unit. Allow for the
floor strength, drainage treatment, duct, and wiring. Insufficient strength may
cause the unit to drop resulting in injury or equipment damage.
Failure to follow these instructions can result in injury or equipment
damage.
NOTICE
EQUIPMENT DAMAGE RISK
Install the unit in an area that is protected from adverse conditions such as an
oil source (including engine oil), salt (in a marine region), and sulfide gases
(near a hot spring or refinery).
Failure to follow these instructions can result in equipment damage.
Select a location for the installation that adheres to the following guidelines:
•
Does not take in hot air from the unit or another unit.
•
Allows enough clearance space for maintenance.
•
Has no obstacles in the air exhaust and draft ducts of the outdoor unit to stop
airflow.
•
Provides good ventilation to help the unit exchange heat.
•
Has sufficient strength to bear the weight of the unit and its vibration during
operation.
•
Does not have dirt, oil, salt, or sulfide gases.
•
Is able to drain rainwater and defrost water.
•
Is not susceptible to flammable gas. If any flammable gas leaks and
accumulates around the unit, an explosion may occur.
•
Is not subject to direct blow of a strong breeze or typhoon. Install rainproof,
snowproof, and sunproof equipment if possible.
The floor and wall may cause vibration and noises depending on the installation
conditions. Adopt anti-vibration measures such as anti-vibration pad or bumper
bracket.
990-6186-001
25
Installation
Panel Removal
Indoor Unit
Electrical Box Access
na91282-60a
1. Remove the filter.
na91282-61a
2. Remove the electrical panel screws.
na91282-38a
3. Slide the electrical box out of the unit.
26
990-6186-001
Installation
Outdoor Unit
na91282-62a
Electrical Panel Access
na91282-63a
External Panel
990-6186-001
27
Installation
Display Interface
See the installation sheet provided with the display interface for
installation instructions.
Mechanical Connections
Installing the Indoor Unit in the Rack
The air conditioner is a cabinet refrigeration product that is installed in the
standard cabinet of a machine room.
NOTE: Some components not shown for easier viewing.
1. Install the optional rail kit in the cabinet where the unit is to be installed.
See the installation instructions in the rail kit.
na6186-06a
2. Slide the cooling unit into the rack on the rails.
3. Attach the front mounting flanges to the vertical mounting rails in the rack with
the cage nuts and washers provided with the rack.
4. Attach the rear of the unit to the vertical mounting rails with the supplied
mounting brackets and the cage nuts and washers provided with the rack.
NOTE: These may not be necessary to support the unit if the rail kit is
installed.
28
990-6186-001
Installation
Installing the Outdoor Unit
CAUTION
SHARP EDGES
Do not touch the fins of the heat exchanger with bare hands.
Failure to follow these instructions can result in injury or equipment
damage.
When installing the outdoor unit, follow these guidelines:
•
Concrete or a supporting frame should be used to build a base for the unit.
When building the base, allow for the floor strength, drainage treatment
(drainage water will outflow from the unit when it is in operation), and duct and
wiring. Insufficient strength may cause the unit to fall.
•
The outdoor unit should be attached to the frame with M10 bolts at each
corner of the mounting base of the outdoor unit.
•
Vibrations and noise from the unit may be transmitted to the structure when it
is in operation. Use anti-vibration pads or a similar measure to prevent
transmission of vibrations and noise.
na6186-07a
M10 FOUNDATION BOLT
990-6186-001
15-MM-THICK (0.06-IN.-THICK)
VIBRATION PAD
29
Installation
Piping Kit Application
Three piping kits are available as options for use with the cooling unit:
•
ACAC10042: Top piping
•
ACAC10043: Bottom piping under the raised floor
•
ACAC10044: Bottom piping under the rack
ACAC10043
ACAC10044
na91282-72a
ACAC10042
30
990-6186-001
Installation
Refrigerant Piping
Piping Connection
The maximum equivalent piping length between the indoor and outdoor units is 20
m (65.6 ft). The maximum vertical difference for the outdoor unit above or below
the indoor unit is 5 m (16.4 ft). The table below outlines pipe sizes for field piping.
Tube
Size
Liquid line
Ø9.52 mm (3/8 in.)
Gas line
Ø12.7 mm (1/2 in.)
Refrigerant R410A piping (minimum
thickness)
0.8 mm (0.03 in.)
The minimum thickness of the piping specified in the instructions is based on
drawn tube of copper and copper alloys (GB/T1527-2006). The thickness and
material of pipes used must be able to withstand a pressure of 4.15 MPa (602 psi)
in accordance with applicable laws.
If the unit is in an environment of severe corrosion, increase the thickness of the
pipe by at least 0.2 mm (0.008 in.).
If the piping has a reduced thickness from bending and tensioning, increase its
wall thickness accordingly.
na7154a
DIAMETER
Refer to the sizes in the table for processing the bell mouth of copper piping.
OD
990-6186-001
OD Size
Metric
British
R410A
Ø6.35 mm
1/4 in.
9.1 mm (0.36 in.)
Ø9.52 mm
3/8 in.
13.2 mm (0.52 in.)
Ø12.70 mm
1/2 in.
16.6 mm (0.65 in.)
Ø15.88 mm
5/8 in.
19.7 mm (0.78 in.)
Ø19.05 mm
3/4 in.
24.0 mm (0.94 in.)
31
Installation
na7255a
See the table for the corresponding flare nut specifications.
DIAMETER
OD
32
OD Size
Metric
British
Ø 6.35 mm
1/4 in.
17.0
Ø 9.52 mm
3/8 in.
22.0
Ø 12.70 mm
1/2 in.
24.0
Ø 15.88 mm
5/8 in.
27.0
Ø 19.05 mm
3/4 in.
36.0
990-6186-001
Installation
Copper Pipe Connection
1. Remove and keep the flare nuts and remove and discard the copper plugs
from the liquid line and suction line connections.
na91282-66a
COPPER
PLUG
FLARE
NUT
FLARE
NUT
COPPER
PLUG
2. Connect the pipes from the selected pipe kit (ACAC10042, ACAC10043, or
ACAC10044) to the liquid and suction lines.
na91282-67a
NOTE: Make sure the piping does not inhibit removal of the electrical box.
3. Use a flaring tool to connect the customer piping (field supplied) to the flare
nut.
NOTE: Make sure the flare nut is on the piping before using the flaring
tool on the customer piping.
FLARE NUT
na91282-68a
CUSTOMER PIPING
(FIELD SUPPLIED)
4. Route the customer piping through the cabinet and connect the flare nuts to
the customer-piping side of the pipe kit.
NOTE: Pipe kit ACAC10044 is shown.
990-6186-001
33
Installation
na91282-69a
PIPING
KIT
FLARE NUT
CUSTOMER PIPING
(FIELD SUPPLIED)
FLARE NUT
5. Remove and keep the flare nuts and remove and discard the copper plugs
from the liquid line and suction line connections.
na91282-70a
COPPER
PLUG
FLARE
NUT
FLARE
NUT
COPPER
PLUG
6. Use a flaring tool to connect the customer piping (field supplied) to the flare
nut.
NOTE: Make sure the flare nut is on the piping before using the flaring
tool on the customer piping.
FLARE NUT
na91282-68a
CUSTOMER PIPING
(FIELD SUPPLIED)
7. Connect the flare nuts to the suction and liquid lines of the outdoor unit.
34
990-6186-001
Installation
CUSTOMER PIPING
(FIELD SUPPLIED)
na91282-71a
FLARE
NUT
FLARE
NUT
CUSTOMER PIPING
(FIELD SUPPLIED)
OD
Tightening Torque
Tightening Angle
Ø6.35 mm
(1/4 in.)
14–18 N·m
(10.33–13.28 ft-lb)
60°–90°
Ø9.52 mm
(3/8 in.)
35–42 N·m
(25.81–30.98 ft-lb)
60°–90°
Ø12.7 mm
(1/2 in.)
50–57.5 N·m
(36.88–42.41 ft-lb)
30°–60°
Ø15.88 mm
(5/8 in.)
75–80 N·m
(55.32–59.00 ft-lb)
30°–60°
Ø19.05 mm
(3/4 in.)
100–140 N·m
(73.76–103.26 ft-lb)
20°–35°
Brazing Copper Pipes
1. Use a neutral flame to braze and control the ratio of oxygen to acetylene (O2:
C2H2=1.0–1.2). Heat the base metal 20–25 mm (0.78–0.98 in.) from the flame
core given that the highest temperature is 2–3 mm (0.7–0.11 in.) from the
flame core (for reference only).
2. Fill the copper pipe with nitrogen to eliminate air. An oxide film may lead to
blockage of the expansion valve, filter, or other system components.
3. Maintain the flow of nitrogen at 10–20 l (2.64–5.28 gal) per minute with a
pressure regulating valve.
4. Fill with nitrogen until the pipe is completely cooled down.
Insulating Refrigerant Pipes
Insulate the refrigerant pipes with closed cell foam insulation of sufficient
thickness to cover the liquid pipe and the suction line. Improper insulation
materials or installation methods may cause condensation to drip from the
refrigerant pipes.
990-6186-001
35
Installation
Drain Connection
na91282-76a
1. Attach the condensate drain hose to the drain connection of the unit with the
hose clamp.
CONDENSATE
DRAIN HOSE
HOSE
CLAMP
2. Route the condensate drain hose out of the unit or connect it to the
condensate drain pump.
See the condensate drain pump Installation Sheet.
36
990-6186-001
Installation
Electrical Connections
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
•
Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices.
•
This equipment must be installed and serviced by qualified personnel only.
•
Turn off all power supplying this equipment before working on or inside the
equipment.
•
Replace all devices, doors, and covers before turning on power to this
equipment.
Failure to follow these instructions will result in death or serious injury.
DANGER
ELECTRICAL HAZARD
Overcurrent protection for all incoming power feeds must be provided by the
customer. See unit nameplate for equipment ratings.
Failure to follow these instructions will result in death or serious injury.
WARNING
ELECTRICAL HAZARD
•
Electrical service must conform to local and national electrical codes and
regulations.
•
The equipment must be grounded.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
WARNING
ELECTRICAL FIRE HAZARD
Use copper conductor wiring only.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
The following electrical connections are required in the field:
•
Power connection of the indoor unit (H05VV-F 3 x 1.0 mm2 cable)
•
Power connection of the outdoor unit (H05VV-F 3 x 1.5 mm2 cable)
•
Communication lines between the indoor and outdoor units (PLTC 2 x 0.5
mm2 cable)
NOTE: A and B need to be distinguished when connecting.
•
Remote monitoring line of the unit
Before connecting the circuit, determine the input power voltage with a voltmeter,
and turn the power off. Use PVC insulated copper wires or rubber insulated
copper wires for the connecting wires of the indoor and outdoor units. The crosssectional area must meet the maximum requirements for load of the unit and its
components. Secure all wiring: Connecting wires of the indoor and outdoor units
must be fixed on clips.
990-6186-001
37
Installation
Wire Cross-Section Ratings
Wire Area
Maximum Current
1.0 mm2
8A
1.5 mm2
11 A
mm2
15 A
2.5
4 mm2
20 A
6 mm2
25 A
mm2
35 A
10
Do not connect the same power terminal with two wires of different diameters.
When connecting to the terminal block, use a needle-shaped terminal with an
insulation sleeve. Ensure the terminal connection to the wires is acceptable.
b
c
d
na7256a
a
Item
38
Description
a
Wires (cross copper wires of over 0.5 mm2)
b
Insulating material
c
Shielding layer (requires more than 95% shielding
effectiveness)
d
Outer layer protection (PVC)
990-6186-001
Installation
Connection Interface
Connection interfaces include the total power input interface and the remote
communication interface of the unit.
Indoor Unit
RS485+
RS485RS485+
RS485F1
F2
W1
W2
P1
P2
See the installation sheets provided with the accessories for more
information.
L
N
na6186-08a
A3
B3
A6
B6
V+
VPE
L3 N SV L1
Item
Description
Controller communication connections
(RS485+, RS485–, RS485+, RS485–)
Fire/smoke alarm connection (F1, F2)
Leak sensor connection (W1, W2)
Condensate drain pump
communication connection (P1, P2)
Condensate drain pump power supply
connection (L3, N)
Low temperature kit connection
• Solenoid valve (SV)
•
990-6186-001
Item
Description
Ground (GND)
Power supply connection (L, N, GND)
Communication connection to the
outdoor unit (A3, B3)
Display interface connection (A6, B6)
24-VDC power supply (V+, V-, PE)
High pressure control and heater
(L1)
39
Installation
na91282-73a
1. Remove the cover from the connections box.
na6186-09a
2. Remove the communication position connectors from the electrical box to
make connections easier.
3. Route the power connections through the cable strain reliefs and make the
connections in the unit.
4. Route the communication connections through the cable strain reliefs and
make the connections to the position connectors.
5. Replace the communication position connectors.
6. Replace the cover.
40
990-6186-001
Installation
na91282-75a
Outdoor Unit
Item
Description
Power supply connection (L, N, GND)
Communication connection to indoor unit (Ain, Bin)
1. Remove the electrical panel cover.
See Panel Removal, page 26.
2. Route cables through the cable strain reliefs and make the unit connections.
3. Replace the electrical panel cover.
990-6186-001
41
Installation
Charging the Refrigeration System
NOTICE
DAMAGE TO EQUIPMENT
Follow the procedures and tables outlined in this manual to charge the
refrigerant if the piping exceeds the standard length.
Failure to follow these instructions can result in equipment damage.
Indoor and outdoor units are all provided with service valves. Connect the service
valves to pipes for immediate system leak detection, vacuum pumping, and
refrigerant filling procedures.
NOTE: Indoor units and outdoor unit model ACRMD4KI-3 are not pre-charged
with refrigerant in the factory.
Leak Detection
Method One
1. Fill the service valve with nitrogen to increase pressure to 2.8 MPa (406 psi)
and 4.15 MPa (601 psi) for refrigerant R410A.
2. Apply soapy water at the connecting joints or welding joints of pipes for leak
detection.
3. Repair leak sources and maintain the pressure for more than six hours to
ensure that the pressure is not decreased.
4. The low side of the compound gauge cannot be connected to the system.
Method Two
1. Fill with the refrigerant and stop when the pressure gauge indicates 0.3 MPa
(43 psi).
2. Fill with nitrogen and stop when the pressure gauge indicates 2.8 MPa (406
psi) and 4.15 MPa (601 psi) for refrigerant R410A.
3. Use an HFC electronic leak detector to detect the leak. Use the bubble gas
leak testing method.
42
990-6186-001
Installation
Vacuum Pumping
1. Exhaust the high pressure nitrogen in the system.
2. Connect the three flexible pipes of the compound pressure gauge to the
corresponding joints of the service valve and the vacuum pump.
3. Start the vacuum pump and maintain the pressure inside the system below
650 Pa (0.09 psi). Do not start the unit until the pipeline for vacuum pumping
is turned off.
TO OUTDOOR UNIT
GAS PIPE
LIQUID PIPE
TO OUTDOOR UNIT
LOW
HIGH
na91282-40a
INDOOR UNIT
Item
Description
Ball valve
Service port
Compound pressure gauge
Check valve
Vacuum pump
990-6186-001
43
Installation
Calculating the Refrigerant Charge
When leaving the factory, the outdoor units that have been filled with refrigerant in
the factory have enough refrigerant required to cover 5 m (49 ft) of pipe. If the
actual length of the pipe exceeds 5 m (49 ft), add more refrigerant for the
additional length. Outdoor unit model ACRMD4KI-3 needs to be charged with 1.65
kg (3.64 lb) of R410A refrigerant for the initial 5 m (49 ft).
Liquid Pipe
Specifications – mm
R410A Refrigerant – g/
m (lb/ft)
Actual Pipe Length
Ø22.23
350 (0.24)
L1
Ø19.05
260 (0.17)
L2
Ø15.88
180 (0.12)
L3
Ø12.7
120 (0.08)
L4
Ø9.52
70 (0.05)
L5
Ø6.35
45 (0.03)
L6
The refrigerant to be added is calculated on the basis of the length and thickness
of the lengthened pipe. The formula is: refrigerant to be added (kg) = 0.35 x L1 +
0.26 x L2 + 0.18 x L3 + 0.12 x L4 + 0.07 x L5 + 0.045 x L6.
If the calculated result is less than 0.1 kg, round it to 0.1 kg. For example, if the
calculated result is 28.62 kg, then add 28.7 kg as the charge amount.
44
990-6186-001
Installation
Charging the Refrigerant
1. Open the gas and liquid valves of the indoor and outdoor units.
2. If the filling tank for R410A does not have siphons, invert it.
3. Measure the filling amount with an electronic scale to prevent excessive
filling.
Fill the gas pipe and the liquid pipe with liquid refrigerant at the same time. If
the pressure is too large to fill the refrigerant, fill the refrigerant with a
compressor during the test run.
TO OUTDOOR UNIT
GAS PIPE
LIQUID PIPE
TO OUTDOOR
UNIT
LOW
HIGH
SCALE
na91282-41a
INDOOR UNIT
SCALE
Item
Description
Cylinder with siphon
Ball valve
Service port
Compound pressure gauge
Refrigerant tank
990-6186-001
45
Commissioning
Commissioning
After installation, verify that all components are working properly and the
equipment is ready to begin operation.
Start-Up Inspection Checklist
The start-up inspection ensures that the equipment is operating properly after the
initial start-up. This inspection verifies that all modes of operation are working
correctly and the cooling unit is ready for normal operation.
Ensure that
The power core model of the outdoor and indoor units is correct.
The fan and motor of the indoor unit are working normally.
The fan and motor of the outdoor unit are working normally.
Communication lines are correctly connected.
The condensate pipe of the indoor unit is unblocked and the water seal
installation is correct.
The equipment is properly grounded and insulation is correct (10
megohm).
The indoor and outdoor units have power supply in line with the
nameplate, and the input voltage is not too high or too low.
The system has no leaks.
The main menu shows no fault after the unit is powered on.
Parameters on the manual operator are correctly set.
After the unit is started, the safety device does not trip.
The air-out temperature of the unit is within its normal range.
The air-out or air-return speed of the unit is within its normal range.
The unit has no abnormal sound and its components have no abnormal
vibration.
The unit can operate normally by setting the switch mode and its
components work accordingly.
After a Long Shutdown
If the outdoor unit is restarted after a long shutdown, energize it for at least 8 hours
before restarting the compressor.
46
990-6186-001
Commissioning
Electrical Inspection Checklist
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
•
Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices.
•
This equipment must be installed and serviced by qualified personnel only.
•
Turn off all power supplying this equipment before working on or inside the
equipment.
•
Replace all devices, doors, and covers before turning on power to this
equipment.
Failure to follow these instructions will result in death or serious injury.
WARNING
ELECTRICAL HAZARD
•
Electrical service must conform to local and national electrical codes and
regulations.
•
The equipment must be grounded.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
The electrical inspection verifies that all electrical connections are secure and
correct and that the equipment is properly grounded.
Ensure that
The power core model of the outdoor and indoor units is proper.
Incoming voltages match the phase and voltage rating on the
nameplate.
Electrical wiring complies with local and national codes and regulations.
The equipment is properly grounded and insulation is correct (10
megohm).
Electrical connections are tight, including contactors, terminal blocks,
controllers, switches, relays, auxiliary devices, and field connections.
Circuit breakers are correct and securely attached to the DIN rail.
Communication lines are correctly connected.
990-6186-001
47
Commissioning
Mechanical Inspection Checklist
CAUTION
HAZARD TO EQUIPMENT OR PERSONNEL
•
The equipment is shipped from the factory with a nitrogen holding charge.
Remove the nitrogen holding charge using the service ports located on the
internal refrigerant piping.
•
Improperly installed piping may result in improper operation and possible
damage to the cooling unit or surrounding equipment.
Failure to follow these instructions can result in injury or equipment
damage.
The mechanical inspection verifies that all mechanical components and
connections are secure and tight and ready for start-up.
Ensure that
Clearance space around the unit is appropriate.
The fan and motor of the indoor unit are working normally.
The fan and motor of the outdoor unit are working normally.
The units are placed upright and fasteners used for installation are
locked.
Pipes connecting the indoor and outdoor units are installed.
The drain pipe of the indoor unit is connected.
The condensate pipe of the indoor unit is unblocked and the water seal
installation is correct.
All copper pipe joints are fastened.
The system has no leaks.
Fasteners for transport are removed.
Transport materials, structure materials, and tools inside or around the
equipment are removed.
48
990-6186-001
Operation
Operation
Using the Display
Main Interface
Description
Screen
•
ON/OFF
•
Input/Output (Operating Parameters)
•
Setpoint
•
User
•
Maintenance
•
Manufacturer
2019-03-20
16:11
Air outlet temperature
0.0°C
Air return temperature
0.0°C
Air return humidity
0.0°C
Operating mode
Refrigeration/cooling
ON/OFF
Input/
Output
Setpoint
Mainten
ance
User
Manufac
turer
na91282-01a
Press the buttons on the Main Interface screen to access the
following functions:
• Alarm
Turning the Unit ON/OFF
Description
Screen
Path: Main Interface > ON/OFF
2019-03-20
16:11
ON
OFF
V1
na91282-03b
U:01
Presss the appropriate button to turn the
unit on or off.
Operating Parameters–IDU Controller
Description
Screen
Path: Main Interface > Input/Output > IDU Controller Operating
Parameters
2019-03-20
16:11
ODU Controller
Operating
Parameters
Historical Data
Historical
Alarms
This screen provides information about the A01–EC fan and the IDU
expansion valve steps.
na91282-05a
IDU Controller
Operating
Parameters
2019-03-20
16:11
A01-EC fan
IDU expansion valve steps
0.0 V
0
na91282-43b
I1
990-6186-001
49
Operation
Operating Parameters–IDU Controller
Description
2019-03-20
16:11
Digital input
Fire alarm / Remote ON/OFF
High level switch of pump
Water on the floor
ON
ON
ON
I2
na91282-44a
Digital input:
ON-No alarm
OFF-Alarm
Screen
Temperature and humidity parameters
2019-03-20
16:11
°C
Coil Inlet temperature
Coil outlet temperature
Air return temperature
Air return humidity
°C
°C
°C
I3
na91282-45a
Air out temperature
Parameters for alarms, pump, heater, fan, and low temperature kit
2019-03-20
16:11
ON
ON
ON
ON
ON
ON
I4
na91282-46a
Digital input
Serious alarm
Common alarm
Condensation pump
PTC heater
IDU fan
SV of low temperature kit
Fan and compressor run time
2019-03-20
16:11
Main fan
#1 Compressor runtimes
0.0 h
0.0 h
na91282-47a
I5
50
990-6186-001
Operation
Operating Parameters–ODU Controller
Description
Screen
Path: Main Interface > Input/Output > ODU Controller Operating
Parameters
2019-03-20
16:11
ODU Controller
Operating
Parameters
IDU Controller
Operating
Parameters
na91282-05a
Historical
Alarms
Historical Data
Temperature parameters
2019-03-20
16:11
#1 ODU parameter
0 Hz
0.0°C
Suction temperature
Exhaust temperature
System low pressure
System high pressure
0.0°C
0.0°C
0.0 Bar
0.0 Bar
A10
na91282-16b
Operation frequency
Ambient temperature
Operating Parameters–Historical Data
Description
Screen
Path: Main Interface > Input/Output > Historical Data
2019-03-20
16:11
ODU Controller
Operating
Parameters
Historical
Alarms
Historical Data
Historical Humidity Data
na91282-05a
IDU Controller
Operating
Parameters
Historical Data
100
75
50
0
9:28
2019-03-20
990-6186-001
9:40
2019-03-20
9:52
2019-03-20
10:04
2019-03-20
10:16
2019-03-20
10:28
2019-03-20
na91282-17b
25
51
Operation
Operating Parameters–Historical Alarms
Description
Screen
Path: Main Interface > Input/Output > Historical Alarms
2019-03-20
16:11
ODU Controller
Operating
Parameters
IDU Controller
Operating
Parameters
Path: Main Interface > Input/Output > Historical Alarms > Alarm
Press and hold Clear Alarm to clear alarms.
na91282-05a
Historical
Alarms
Historical Data
Historical Alarm
Alarm Message
Date
na91282-02b
Time
Setpoint
Description
Screen
Path: Main Interface > Setpoint
The password for the Setpoint screen is 1000.
Default
Air return temperature
35°C
Air outlet temperature
22°C
Minimum humidity
15°C
Maximum humidity
80°C
Air return temp.:
35°C
Air outlet temp.:
22°C
Minimum humidity:
15°C
Maximum humidity:
80°C
na91282-18b
Item
2019-03-20
16:11
User
Description
Screen
Path: Main > User > User Password
The default user password is 1000.
Password error displays if a wrong password is entered.
Enter the password within 5 seconds after the password error.
Please enter your password
****
Confirm
Cancel
na91282-19a
Password error.
2019-03-20
16:11
52
Default
Option
Language
Chinese
English
PTC Heater
YES
NO
Condensation pump
NO
YES
Condensation pump alarm
UNIT OFF
ALARM
Language
English
PTC Heater
YES
Condensation pump
Condensation pump alarm
YES
UNIT OFF
P1
na91282-20b
Item
990-6186-001
Operation
User
Description
Screen
2019-03-20
16:11
Item
Default
Range
Air outlet temperature limit
27°C
0–35°C
Minimum
13°C
0–20°C
Maximum
42°C
0–50°C
Minimum
16°C
0–35°C
27°C
13°C
P2
42°C
16°C
na91282-21b
Maximum
Air outlet temperature limit
Maximum
Minimum
Air return temperature limit
Maximum
Minimum
Air return temperature limit
2019-03-20
16:11
Default
Range
Air outlet temperature limit
High temperature
45°C
0–50°C
Return humidity alarm
Low humidity
15%
0–95%
High humidity
95%
0–100%
Low temperature
8°C
0–13°C
High temperature
32°C
0–25°C
Air return temperature alarm
High temperature
Return humidity alarm
Low humidity
High humidity
Air outlet temperature alarm
Low temperature
High temperature
45°C
15%
95%
P3
8°C
32°C
na91282-22b
Item
Air outlet temperature alarm
2019-03-20
16:11
Default
Range
BMS control
YES
NO
Modbus address
0
0–255
Communication speed
9600
4800/9600/19200
New user password
1000
0–65535
BMS control
Modbus address
Comunication speed
YES
0
9600
New user password
0
Date
Time
Touch Screen
Sound
ON/OFF
P4
na91282-23b
Item
Press Date Time to show the date and time.
Press Touch Screen Sound to turn the sound on or off.
990-6186-001
53
Operation
Maintenance
Description
Screen
Path: Main > Maintenance
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IDU board version: SE_IDC_EN1.3
ODU board version: SE_ODC_EN1.3
HMI version: SE_HMIC_EN 1.3
Touch Screen
Sound ON/OFF
Alarm Sound
ON/OFF
Restart Touch
Screen
F1
Range
Outlet temperature for unit off
19°C
14–24°C
Select YES for manual operation.
Select Manual and ON from the drop-down lists.
na91282-28b
Default
19°C
SE_IDC_EN 1.3
SE_ODC_EN 1.3
SE_HMIC_EN 1.3
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Manual operation
Serious alarm
Common alarm
Auto
Auto
NO
OFF
OFF
Condensation pump
PTC heater
IDU fan
SV low temperature kit
Auto
Auto
Auto
Auto
OFF
OFF
OFF
OFF
IDU maintenance information
F2
na91282-48a
Item
Outlet temperature off
IDU board version
ODU board version
HMI version
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IDU fan speed
IDU EEV steps
Auto
Auto
0.0V
0
na91282-49a
F3
IDU maintenance information
2019-03-20
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NO
NO
Threshold running hours alarm
IDU fan
0.0 h
F4
na91282-50a
Modify run hours
IDU fan hours reset
#1 Compressor hours reset
IDU maintenance information for temperature and humidity
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0.0°C
0.0°C
Coil outlet temperature
Air return temperature
Air return humidity
0.0°C
0.0°C
0.0%
F5
na91282-51a
Probe setting
Air outlet temperature
Coil inlet temperature
Press the appropriate buttons to clear and download alarm or date.
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New maintenance password
0
Clear
History
Alarm
54
Clear
History
Date
Download
Alarm to
U Disk
Download
Date to
U Disk
na91282-52a
F6
990-6186-001
Operation
Manufacturer
Description
Screen
Path: Main > Manufacturer
Enter a new manufacturer password.
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Configuration
Management
Parameters
NO
0
na91282-53a
Default value
New manufacturer password
Timing
Path: Main > Manufacturer > Configuration Management
2019-03-20
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Default
Option
BMS Network
Standard
Custom
DI1 Function selection
Fire/Smoke
Remote
Condensation pump alarm
NO
YES
Water on floor
NO
YES
Maintenance alarm
YES
NO
BMS Network
DI1 Function selection
Condensation pump alarm
Standard
Fire/Smoke
NO
Water on floor
NO
Maintenance alarm
YES
na91282-54a
Item
Path: Main > Manufacturer > Parameters
2019-03-20
16:11
Item
Default
Maximum speed of EC/DC fan
10
Maximum speed of EC/DC fan
10
Failure speed of EC/DC fan
10
Dehumidifying speed of EC/DC fan
5
Maximum speed of EC/DC fan
Minimum speed of EC/DC fan
Failure speed of EC/DC fan
0.0 V
0.0 V
0.0 V
na91282-55a
Dehumidifying speed EC/DC fan 0.0 V
Path: Main > Manufacturer > Timing
2019-03-20
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Default
Delay time to stop fan
5 seconds
Delay alarm low/high temperature
30 seconds
Delay alarm condensation pump
5 seconds
Delay alarm output
10 seconds
990-6186-001
Delay time to stop fan
5 seconds
Delay alarm low/high temperature 30 seconds
Delay alarm condensation pump 5 seconds
Delay alarm output
10 seconds
na91282-56a
Item
55
Maintenance
Maintenance
Preventive Maintenance
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
•
Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices.
•
This equipment must be installed and serviced by qualified personnel only.
•
Turn off all power supplying this equipment before working on or inside the
equipment.
•
Replace all devices, doors, and covers before turning on power to this
equipment.
Failure to follow these instructions will result in death or serious injury.
WARNING
HAZARD TO EQUIPMENT OR PERSONNEL
All work must be performed by Schneider Electric qualified personnel.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
Perform the following maintenance check list.
Prepared By: ________________________________
Model Number: ______________________________
Serial Number: ______________________________
Date: ______________________________________
56
990-6186-001
Maintenance
Electrical Maintenance
Perform visual inspection and processing of electrical connections.
Perform a total electrical insulation test. Find the non-conforming
contacts for processing. Disconnect the control switch or air switch
during the test to avoid any damage to the control device from high
voltage.
Statically detect whether each contactor is pulled in flexibly without
jamming.
Remove dust from the electrical and control components with a brush
or dry compressed air.
Check for arcing or burn marks on the contacts. Replace the contactor if
necessary.
Fasten each electrical connection terminal.
Check whether the quick connector is in good contact and replace the
terminal if necessary.
Check the appearance of the adapter and test its output voltage for the
indoor and outdoor units.
Check the output connection from the control interface board to each
contactor and the input connection of the high and low voltage
switches, and filter plug switch. Replace the plug terminal immediately if
it is loose or has bad contacts.
Replace the control fuse (or air switch), control board, and other
electrical components if necessary.
Control Maintenance
Perform visual inspection and simple function testing of the control segment for
processing.
Check for obvious aging on the surface of the control interface board
and the display control board.
Remove the dust and dirt on the control components and control boards
with a brush and an electronic dedusting agent.
Check and fasten the I/O plug interface of the control interface board,
including the connection between the display control board and the
control interface board and the connection between the control
interface board and the temperature and humidity sensor board.
Check the specifications and aging of the control wire and the power
wire and replace if necessary.
Check and calibrate the readings of the temperature and humidity
sensor with an instrument of high measuring accuracy. Select relative
humidity control as the humidity control mode.
Clean the air filter net. Place on a hard surface and gently tap to remove
heavy particles. If necessary, wash the filter with a neutral detergent in
warm water and dry it before re-installation.
Use a vacuum cleaner and a nylon brush to clean the dust and other
debris on the surface of the heat exchanger. If a compressed air source
is available, use the compressor to spray the dust off the surface.
Regularly check the motor, impeller, and other components of the fan. If
necessary, consult the manufacturer for more details.
Before operating the unit, ensure the drainage pipe is not blocked.
990-6186-001
57
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 (China) Co., Ltd Shanghai Pu Dong Branch
4F Building 9, No 3000 Long Dong Avenue, 201203
Pu Dong, Shanghai
People’s Republic of China
www.schneider-electric.com
As standards, specifications, and design change from time to time,
please ask for confirmation of the information given in this publication.
© 2019 – 2019 Schneider Electric. All rights reserved.
990-6186-001

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