Schneider Electric EcoStruxure Micro Data Center R-Series Panel Air Conditioner User manual

Brand: Schneider Electric

Model: EcoStruxure Micro Data Center R-Series Panel Air Conditioner

Category: Split-system air conditioners

Type: User manual

EcoStruxure Micro Data Center R-Series

Panel Air Conditioner

User Manual

ACRPM500, ACRPM1000, ACRPM2000

TME19714A

Publication Date: 5/2023

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.

 
 
 
Contents 
Legal Information .......................................................................................................................................................... 2 
Contents ....................................................................................................................................................................... 3 
IMPORTANT SAFETY INSTRUCTIONS – SAVE THESE INSTRUCTIONS ............................................................... 1 
Please Note .............................................................................................................................................................. 1 
Safety During Installation and Operation .................................................................................................................. 2 
Upon Arrival .................................................................................................................................................................. 2 
Unpacking, Inspection, and Installation of Spare Air Conditioners ............................................................................... 3 
Technical Specifications ............................................................................................................................................... 5 
Mechanical Drawings ................................................................................................................................................... 7 
Refrigerant Loss, Leak Detection, and Charging ........................................................................................................ 10 
Leak Detection and Correction................................................................................................................................ 10 
Method One......................................................................................................................................................... 10 
Method Two......................................................................................................................................................... 11 
Vacuum Pumping.................................................................................................................................................... 11 
Charging the System .............................................................................................................................................. 11 
Operation Prerequisites .............................................................................................................................................. 11 
Piping and Instrumentation Drawings ......................................................................................................................... 12 
How the Air Conditioner Works .................................................................................................................................. 15 
General Maintenance ................................................................................................................................................. 16 
Compressor ............................................................................................................................................................ 16 
Condenser and Evaporator Blowers ....................................................................................................................... 16 
Inlet Filter ................................................................................................................................................................ 16 
How to Remove, Clean, or Re-install a New Filter .............................................................................................. 17 
Recommended Preventative Maintenance Schedule ............................................................................................. 17 
Electrical Drawings ..................................................................................................................................................... 18 
About the Microprocessor Controller .......................................................................................................................... 21 
Electrical Characteristics ......................................................................................................................................... 21 
Main Board ............................................................................................................................................................. 21 
Interface .................................................................................................................................................................. 22 
Basic Function ........................................................................................................................................................ 22 
Control Logic ........................................................................................................................................................... 23 
Symbol Definition ................................................................................................................................................ 23 
Compressor ON Conditions:................................................................................................................................ 23 
Compressor OFF Conditions: .............................................................................................................................. 23 
Temperature Alarm ............................................................................................................................................. 24 
PTC Heater Conditions ....................................................................................................................................... 24 
Display Panel .......................................................................................................................................................... 24 
LED Indicator Light Descriptions ......................................................................................................................... 24 
Panel Operation .................................................................................................................................................. 24 
Alarm Code ......................................................................................................................................................... 26 

Troubleshooting .......................................................................................................................................................... 26

One-year Factory Warranty ........................................................................................................................................ 27

Terms of Warranty................................................................................................................................................... 27

Non-transferable Warranty ...................................................................................................................................... 27

Exclusions ............................................................................................................................................................... 27

Warranty Claims ...................................................................................................................................................... 27

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.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

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.

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.

Safety During Installation and Operation

DANGER

HAZARD OF ELECTRIC SHOCK

 The cooling unit must be installed or replaced only by qualified personnel.

 Work on electrical connections must be carried out exclusively by trained, qualified electricians.

 Ensure the Earthing connection is secure.

 Never connect or disconnect the mains power connection while the equipment is under load.

Turn off the Panel Air Conditioner before connecting or disconnecting power.

 Remove all electrical connections to the unit before removing the front panel.

 Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring

rules.

 If the supply cord is damaged, it must be replaced by a special cord or assembly available from

the manufacturer or its service agent to avoid a hazard.

 This appliance is not intended for use by persons (including children) with lack of experience and

knowledge, unless they have been given supervision or instruction concerning use of the

appliance by a person responsible for their safety. Children should be supervised to ensure that

they do not play with the appliance.

 The appliance must be installed in accordance with applicable national regulations.

Failure to follow these instructions will result in death or serious injury.

CAUTION

HOT EQUIPMENT

The condenser air outlet can get hot. Keep your body parts away from the air outlet.

Failure to follow these instructions can result in injury or equipment damage.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

 Never place the Panel Air Conditioner on its side.

 If electrical power is momentarily interrupted to the air conditioner and reapplied immediately,

(within 3 to 5 seconds), do not attempt to restart the Air Conditioner for at least three minutes

after the unit has been shut off either accidentally of intentionally.

 Do not operate the Panel Air Conditioner in areas containing airborne caustics or chemicals.

 The compressor should only be repaired, removed, or replaced by certified personnel.

 Only operate the cooling unit with the cover installed.

 Ensure all openings of the panel are sealed to avoid ambient air infiltration.

Failure to follow these instructions can result in equipment damage

NOTICE

 This appliance should not be accessible to the general public.

 Operation of the Panel Air Conditioner at ambient temperature below 10°C or above 50°C will

void all warranties.

Upon Arrival

Please read this manual completely before attempting to use or service the Panel Air Conditioner. Failure to follow

any procedure or warning given here will void the warranty.

These are the original instructions provided by the manufacturer. You can find updates to this document on the

relevant product page of www.se.com.

Unpacking, Inspection, and Installation of Spare Air Conditioners

Skip this section if your air conditioner is pre-installed to a Micro Data Center R-Series Unit.

DANGER

HAZARD OF ELECTRIC SHOCK

 The cooling unit must be installed or replaced only by qualified personnel.

 Work on electrical connections must be carried out exclusively by trained, qualified electricians.

 Ensure the Earthing connection is secure.

 Seal all openings of panel to avoid ambient air infiltration

 Never connect or disconnect the mains power connection while the equipment is under load. Turn off the

Panel Air Conditioner before connecting or disconnecting power.

Failure to follow these instructions will result in death or serious injury.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

Never place the Panel Air Conditioner on its side.

Failure to follow these instructions can result in equipment damage

Do not block the condenser air or inlet path. Provide minimum clearance around the unit as shown:

1. Inspect the Panel Air Conditioner upon arrival. The Panel Air Conditioner should be transported in vertical

position and placed upright on installation. Never place the Air Conditioner on its side. If the Air Conditioner

is placed on its side, place the air conditioner upright and let it sit upright for one hour before applying power.

This allows any escaped compressor oil to return to the compressor.

2. Check for damage that may have occurred during shipping. Look for dents, scratches, loose assemblies,

evidence of oil, etc. Any damage evidence upon receipt should be noted. In case of shipping damage,

contact Customer Support at https://www.apc.com/support.

3. Eye bolts are provided on the top of the unit for lifting. Ensure that the eye bolts are fully screwed in before

lifting the unit.

4. Use the eyebolts to lift the Panel Air Conditioner so its mounting posts align with the MDC. Use the M8 bolts

in the hardware bag to secure the Panel Air Conditioner to the MDC.

5. See the Electrical Drawings on page 18 to connect the power supply connector, alarm/Modbus connector

and voltage alarm relay connector to the unit. Connect the earthing wire to the bolt provided, as shown in the

electrical drawings.

6. Turn ON the main supply MCB/Switch to power up and start the unit

Technical Specifications

Specification

ACRPM500

ACRPM1000

ACRPM2000

Net capacity (L35,

L35), 50/60 Hz

500/525 W

1000/1050 W

2000/2100 W

Mounting type

Side panel

Ambient Temp Range

10 °C – 50 °C (50 °F – 122 °C)

Refrigeration

Compressor

Rotary

Refrigerant

R 134a

Refrigerant charge

190 g

420 g

920 g

Condenser fan type

Centrifugal Backward fan

Evaporator fan type

Centrifugal Backward fan

Rated internal air flow

(CMH) 50/60 Hz

146/178

331/351

532/566

Expansion device

Capillary

Electrical

Supply voltage

(50/60 Hz)

230 V +/- 10%, 1 phase

Frequency

50 Hz/60 Hz

Rated current

(L35/L35) at 50/60 Hz

1.6 A/1.62 A

2.7 A/2.8 A

4.2 A/5.7 A

Power consumption

(L35/L35) at 50/60 Hz

296 W/329 W

544 W/608 W

950 W/1163 W

Maximum current

at 50/60 Hz

1.95 A/2.02 A

3.75 A/3.87 A

6 A/7.75 A

Starting current

7 A/7.2 A

13.5 A/14.0 A

21 A/28.5 A

Power input terminal

Wago® connector

Mechanical

Body structure

GI body

Color finish

RAL 7035 (PP Coating)

Approximate weight

28 Kg (62 lb)

42 Kg (93 lb)

72 Kg (159 lb)

Approximate weight

(packaged)

83 Kg (183 lb)

107 Kg (236 lb)

162 Kg (357 lb)

Dimensions

(H x W x D)

600 x 350 x 260 mm

(24 x 14 x 10 in)

800 x 430 x 280 mm

(31 x 17 x 11 in)

1200 x 440 x 340 mm

(47 x 17 x 13 in)

Controller

Type

Digital with display

Modbus

communication

RS485

Temperature setting

range

25 °C – 35 °C (77°F – 95 °F)

Safety Features

Alarm output

Yes

Voltage sensing alarm

Yes

HP Pressure Switch

(OUT/IN) psig

300/240

LP Pressure Switch

(OUT/IN) psig

3/18

Additional Features

Re-evaporative

condensing unit

Yes

Anti-corrosive coating

on condenser coil

Yes

Mechanical Drawings

ACRPM500 (Included in MDC24UR500ACI/ MDC24UR500ACI-IN)

M6 BOLT x 25 MM LENGTH

ACRPM1000 (Included in MDC24UR1KACI/MDC24UR1KACI-IN)

M8 BOLT x 25 MM LENGTH

ACRPM2000 (Included in MDC42UR2KACI/MDC42UR2KACI-IN)

M8 BOLT x 25 MM LENGTH

Refrigerant Loss, Leak Detection, and Charging

NOTICE

HAZARD OF EQUIPMENT DAMAGE

Leak detection, correction, vacuum pumping, and charging must only be performed by qualified professionals.

Failure to follow these instructions can result in equipment damage

The Panel Air Conditioner was thoroughly tested before leaving the factory to help insure against refrigerant leaks,

Shipping damage or microscopic leaks not found during manufacture may require repair and recharging of the

system. This work should be performed by qualified professionals only, generally available in any reputable air

conditioner repair or Service Company in your location area.

Refer to the data on your nameplate, which specifies the type of refrigerant and the charge size in grams. Before

recharging, make sure there are no leaks and that the system has been properly evacuated by a deep vacuum

pump. Charging should be done with both the suction and discharge gauges installed and both the pressures should

be monitored.

Leak Detection and Correction

Method One

1. Remove the cover from the unit. When the cover is partially removed, disconnect the display cable on

the inside of the cover.

Use a charging hose to connect a nitrogen cylinder to the liquid line split valve at the bottom of the unit.

Gradually raise the system pressure to 2.8 MPa (406 psig).

2. Apply soapy water at the connecting joints and brazed joints for leak detection.

3. Repair any leak sources, then refill the nitrogen to 2.8 MPa (406 psig). Wait for over 6 hours to ensure

the system pressure does not fall below 2.8 MPa (406 psig).

4. Re-install the front cover.

Method Two

1. Remove the cover. When the cover is partially removed, disconnect the display cable on the inside of the

cover.

Use a charging hose to connect an R134a cylinder the liquid line split valve at the bottom of the unit.

Gradually raise system pressure to 0.3 MPa (43 psig).

2. Remove R134a cylinder and connect the nitrogen cylinder to the system. Gradually raise the system

pressure to 2.8 MPa (406 psig).

3. Use both an HFC electronic leak detector and the bubble gas leak testing method at the connecting joints

and brazed joints to detect any leaks.

4. Repair any leak sources if found. Refill the nitrogen to 2.8 MPa and wait for more than six hours to ensure

that the pressure does not decrease.

Vacuum Pumping

1. Exhaust the high-pressure nitrogen from the system.

2. Connect a charging hose to the liquid line valve and to the vacuum pump.

3. Start the vacuum pump and bring the system pressure below 650 Pa (0.09 psi).

4. Do not start the unit until vacuum pump is turned off and unit is charged.

Charging the System

1. Turn off the vacuum pump.

2. Hang an R134a cylinder inverted from a spring type weighing machine. Write down the initial reading/weight.

Then connect a charging hose to the hanging cylinder and let out some refrigerant to purge the hose.

Connect the hose to the liquid line split valve ¼ in port. Open the valve gradually to allow liquid refrigerant

into the system. Close the valve when the required quantity of refrigerant is in the system (check the unit

nameplate for details).

3. Cap the liquid line split valve. Keep it capped after charging is complete.

The Panel Air Conditioner is now ready for operation.

Operation Prerequisites

Ignoring the following operation prerequisites may void the warranty.

If the Panel Air Conditioner is to maintain low temperature in the cabinet or enclosure, (Lower than the room dew

point) it is recommended that an electrical lockout or safety switch be installed in the enclosure to stop the operation

of the unit while the door is open. After shutoff, opening the door before the inside temperature has risen above the

room dew point might result in condensation on the circuit boards.

The enclosure air shall contain is limited moisture. If moisture flows from the drain tube continuously this can only

mean that ambient air is entering the enclosure. Remember that frequent opening of the enclosure’s door admits

humid air, which the air conditioner must then dehumidify.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

 If electrical power is momentarily interrupted to the air conditioner and reapplied immediately, (within 3 to 5

seconds), do not attempt to re-start the Air Conditioner for at least three minutes after the unit has been

shut off either accidentally of intentionally.

 Do not operate the Panel Air Conditioner in areas containing airborne caustics or chemicals.

Failure to follow these instructions can result in equipment damage

Operation of the Panel Air Conditioner in areas containing airborne caustics or chemicals can rapidly

deteriorate filters, condenser coils, blowers, and motors, etc.

NOTICE

Operation of the Panel Air Conditioner at ambient temperature below 10°C or above 50°C will void all warranties.

Piping and Instrumentation Drawings

ACRPM500 (Included in MDC24UR500ACI/ MDC24UR500ACI-IN)

ACRPM1000 (Included in MDC24UR1KACI/MDC24UR1KACI-IN)

ACRPM2000 (Included in MDC42UR2KACI/MDC42UR2KACI-IN)

How the Air Conditioner Works

The panel air conditioner works on a closed loop principal and is designed specifically to cool the electronic

components of an enclosure.

1. Hot air from the enclosure is drawn inside the evaporator section of air conditioner by the evaporator blower.

2. This air is made to pass through cooling/evaporator coil of the air conditioner by the evaporator blower

thereby discharging the cool air back to the enclosure.

3. In the evaporator coil, the liquid refrigerant is converted to a gaseous state by the heat from the enclosure

air. The refrigerant absorbs this heat, causing the enclosure air to cool.

4. The refrigerant is then compressed by the compressor so that it achieves a higher temperature than the

ambient air.

5. The condenser fan draws the ambient air inside the condenser section through the inlet filter and passes it

over the condenser coil and finally, returns it to the room/ambient air.

6. The condenser in contact with the ambient air expels the excess heat. As a result, the temperature of the

refrigerant drops and is converted back into liquid. The liquid refrigerant is injected back into the evaporator

through a capillary which cools it further and the cycle repeats.

7. The enclosure air drawn into the evaporator and ambient air are not allowed to mix, which helps the air

inside the enclosure remain clean, cool, and filtered.

General Maintenance

Compressor

The compressor requires no regular maintenance. It is hermetically sealed and lubricated at the factory.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

The compressor should only be repaired, removed, or replaced by certified personnel.

Failure to follow these instructions can result in equipment damage

Condenser and Evaporator Blowers

Blower motors require no maintenance. All bearing, shafts, etc. are lubricated during manufacturing for the life of the

motor. If necessary, the entire blower assembly must be removed.

Inlet Filter

Proper maintenance of the inlet filter helps to ensure normal operation of your Panel air conditioner. If filter

maintenance is delayed or ignored, the maximum ambient operating temperature will decrease.

As the compressor operating temperature increases above normal due to dirty or clogged inlet filter (or clogged

condenser coil), the air conditioner’s compressor will stop operating due to actuation of the thermal overload cut-out

switch located on the compressor housing. As soon as the compressor temperature has dropped to within the

switch’s cut-in setting, the compressor will restart automatically. The temperature will continue to rise, and the

compressor will continue to shut down until the filter has been cleaned or replaced.

It is recommended that the air conditioner be stopped when abnormally high compressor operating temperature

causes automatic shutdown of the unit. Repeated compressor shutdowns are symptomatic of clogged or dirty filters,

thus causing a reduction in cooling airflow across the surface of the compressor and condenser coil.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

Continued operation under the above conditions can and will damage and shorten compressor life.

Failure to follow these instructions can result in equipment damage

The air conditioner features easily removable inlet filter to facilitate necessary cleaning. There should be no reason

to neglect this necessary maintenance.

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Schneider Electric EcoStruxure Micro Data Center R-Series Panel Air Conditioner User manual

Brand: Schneider Electric

Model: EcoStruxure Micro Data Center R-Series Panel Air Conditioner

Category: Split-system air conditioners

Type: User manual

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Schneider Electric EcoStruxure Micro Data Center R-Series Panel Air Conditioner User manual

Schneider Electric EcoStruxure Micro Data Center R-Series Panel Air Conditioner User manual

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