Unique Cu series Guide

Service Manual

And

Spare Parts List

And

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Contents

SAFETY FIRST!……………………………………………………………... iii

1. INTRODUCTION

1.1. Product Overview ....................................................................................... 1

1.2. Nameplate Information .............................................................................. 2

2. TECHNICAL DATA TABLES

2.1. Technical Data Tables – Models CU-150, CU-200, CU-250 ….……..…3

2.2. Technical Data Tables – Models CU-300, CU-350, CU-400 …………… 7

2.3. Technical Data Tables – Models CU-450, CU-480, CU-500...………….11

2.4. Technical Data Tables – Models CU-600, CU-700, CU-800 .……….…15

2.5. Technical Data Tables – Models CU-1000, CU-1200, CU-1400 ……….19

3. CU SERIES PACKAGED UNITS

3.1. CUP 350…500 ............................................................................................ 24

3.2. CUP 600…800 ............................................................................................ 26

3.3. CUP 1000…1400 ........................................................................................ 28

4. REFRIGERATION CYCLE DIAGRAMS

4.1. Typical Refrigeration Cycle ................................................................... 31

4.2. Accessories Table .................................................................................... 32

5. AIR FLOW CURVES

5.1. Air flow Curves Fans 145-220-30W and DD 7-7-90W ........................... 33

5.2. Air flow Curves Fans DD 7-7-147W and DD 7-10-147W ...................... 34

5.3. Air flow Curves Fans DD 9-9-245W and DD 9-9-370W ........................ 35

5.4. Air flow Curves Fans DD 9-10-370W and DD 10-10-370W .................. 36

5.5. Air flow Curves Fans DD 10-10-550W and DD 12-12-550W ................ 37

6. ELECTRICAL WIRING DIAGRAMS

6.1. Electrical Wiring Diagram CU150…400-1PH......................................... 39

6.2. Electrical Wiring Diagram CU150…480-3PH ……................................ 40

6.3. Electrical Wiring Diagram CU500…800-3PH ………………….…….. 41

6.4. Electrical Wiring Diagram CU1000…1400-3PH …………………….…42

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7. INSTALLATION INSTRUCTIONS

7.1. General ………………………………..………………………………. 43

7.2. Standard Accessories ………………………..…..…………………….. 43

7.3. Electrical Requirements……………………..…………………………. 43

7.4. Typical System Installation ………………..…….…………………… 44

7.5. Installing the Outdoor Unit ………………..…….…………………… 45

7.6. Installing the Indoor Unit …………………..…….……………………. 46

7.7. Air Duct Installation………………………..……….…………………... 47

7.8. Connecting the Drain Hose ………………..………..…………………. 48

7.9. Connecting the Refrigerant Lines and Refrigerant Charge ……..…... 48

8. INSTALLING THE CONTROL SYSTEM AND CONNECTING POWER

8.1. Identification of the Components………………………………………. 51

8.2. Installing The Wall Mounted Units …………………………...……... 52

8.3. Wiring Diagrams – Indoor and Outdoor Units …………...…………. 52

8.4. Electrical Connections Scheme ……………………………..………..…55

8.5. Wiring the Outdoor Unit …………………………………………..…… 56

8.6. Wiring the Indoor Unit ………………………………………………… 58

8.7. Finishing the Job …………………………………..………..…………… 59

9. TROUBLESHOOTING GUIDE

9.1. General Troubleshooting ……………………………………….…….. 60

9.2. Poor Cooling Troubleshooting ……………………………….………. 63

9.3. Poor Heating Troubleshooting ……………………………….………. 64

10. OPERATION INSTRUCTIONS

10.1. RT-101 – Infra Red Remote Control…………………………………. 65

10.2. M101P ………………………………………………………...……... 67

10.3. ETN1000 …………................................................................…………. 68

10.4. MIGA2400 – Wall Mounted Thermostat……………..…..………..… 69

11. SPARE PARTS LIST

11.1. Outdoor Unit Refrigerant System Components ………………...….. 75

11.2. Outdoor Unit Electrical Components ………………………..……….78

11.3. Indoor Unit Assembly ………………………………………..…..… 81

12. APPENDIX A – Manufacturing Program ……………………………..…… 85

13. APPENDIX B – Special Control Boards …………………………………… 91

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SAFETY FIRST!

Safe operation is UNIQUE's number-one priority when designing products. Please

read all the safety information and the instructions completely prior to beginning the

installation and operation of the unit.

UNIQUE products are designed for HVAC use. Using this equipment for any other

purpose or in a way not within the operation recommendations specified in this manual

will void the warranty and may cause injury. This manual is designed to provide

comprehensive installation/operation information for this UNIQUE product. The table

of contents provides a convenient overview of the information in this manual.

Follow Safety Instructions! Carefully read all safety messages in this manual and on

the equipment. Follow recommended practices and safe operating practices. Keep

Safety Signs in good condition. Replace missing or damaged Safety Signs.

Danger! In plannig the location of the equipment, take into consideration any areas

that could present an unsafe situation. Avoid power lines that could come into contact

with the equipment.

Warning! – Electrical Safety. To avoid electrical shock, place equipment in a safe

area, use guards around control panels and always shut off and lock out control boxes

when working on equipment.

In selecting electrical equipment to be used with the installation, you must use

equipment conforming to applicable local or international codes or regulations.

Important! Check all equipment for warning, danger and Caution Decals, before

equipment is operated.

Do not by-pass or take shortcuts with electrical safety equipment. Make sure electrical

equipment is properly installed and grounded by a qualified electrician, and that it

meets and adheres to all local laws and codes.

Be sure covers, guards and safety devices are correctly installed and in proper position.

Danger! Failure to follow proper assembly and operational procedures may cause

damage to equipment or personal injury.

iv

NOTES

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-1-

1. INTRODUCTION

This Service Manual has been prepared as an aid to HVAC installation teams and users, to

help you better understand the equipment. This information is also designed to make you

aware that the Air Conditioner is a product that must be used with care and understanding.

This Service Manual provides comprehensive technical documentation for all models of

UNIQUE-CU split and packaged air conditioners.

The information contained in this manual is useful for application engineers, architects,

designers and various level service and installation personnel.

The manual also contains information about the optional features offered by the UNIQUE-CU

series, as well as helpful information on split air-conditioners, electrical wiring diagrams and

refrigeration cycle diagrams for the various models.

Please read this entire Service Manual and pay particular attention to safety. Your failure to

read this manual is a misuse of the product which could result in personal injury or property

damage.

The manufacturer reserves the right to change product specifications without prior

notice.

1.1 Product Overview

Unique-CU Air Conditioners are the perfect choice for many residential, industrial and

commercial applications, offices and buildings. The operation of Unique-CU Air Conditioners

is quiet and the incorporated electronic controls ensure performance, durability and low

maintenance requirements.

All Unique-CU Air Conditioners include cooling and heating by heat pump.

All Unique-CU Air Conditioners are ISO-9002 certified.

1.2 Product Code

CU - -

Model Phases: 1 – Single Phase

150-1400 3 – Three Phase

Indoor Unit Type

C – Outdoor Unit A – Dual Fan

E – Indoor Unit C – Single Fan

P – Packaged Unit

Unique-CU series air conditioner

-2-

1.3 Nameplate Information

Technical information for a specific unit appears on the unit nameplate, which is attached to

the indoor and/or the outdoor units.

The unit nameplate includes the following information:

MODEL Air-conditioner model name

SERIAL NUMBER Serial Number of the unit.

CLIMATE CLASS Class T1 – Standard conditions.

VOLT/PHASE/Hz A/C power supply, for example: 400/3/50 = 400V/3 Phase/50 Hz.

COS φPower factor for the unit.

FUSE Required fuse size, Amp.

CAPACITORS μF Compressor capacitor, Outdoor Fan capacitor (wherever applicable)

REFRIGERANT Type and Quantity of refrigerant charge, Gr.

CAPACITY W Cooling and heating capacity in Watts according to ISO 5151 standard.

CAPACITY BTU/H Cooling and heating capacity in BTU/Hr. according to ISO 5151 standard.

INPUT POWER Power consumption in cooling and heating modes, watts.

AMP. Current consumption in cooling and heating modes, Amp.

WEIGHT Kg. Weight of the unit, Kg.

The indoor unit nameplate includes the following information:

MODEL Air-conditioner model name and unit type

CAPACITORS μF Indoor Fan capacitor (wherever applicable)

AIR FLOW m³/h Air Flow at High Speed in m³/h

AIR FLOW cfm Air Flow at High Speed in cfm

WEIGHT Kg. Weight of the unit, Kg.

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2.1 Technical data table – Models CU150, CU200, CU250

2.1.1 Performance

R22

Model CU150 CU200 CU250

Watt 4430 5569 7181

Cooling capacity

Btu/h 15100 19000 24500

Watt 4580 5715 7386

Heating capacity

Btu/h 15280 19500 25200

Power Consumption - cooling Watt 1670 2135 2695

Power Consumption - Heating Watt 1520 1905 2460

Operating Current (cooling/Heating) Amp 7.9/7.2 10.1/9.5 12.7/11.6

E.E.R - Energy Efficiency Ratio Cooling 9.0 8.9 9.1

C.O.P - Coefficient Of Performance Heating 3.0 3.0 3.0

Refrigerant Charge gr. 1210 1600 2040

Moisture Removal Lit/h 2 2.7 3.6

Power Supply V/Ph/Hz 230V, 1Ph, 50Hz or 400V, 3Ph, 50Hz

Condensate Lines - Drain Ф-mm (in) 19 (3/4")

Time Delay Fuse Amp. C-10 C-16 C-16

R407c

Model CU150 CU200 CU250

Watt 4173 5401 7004

Cooling capacity

Btu/h 14240 18430 23900

Watt 4250 5490 7090

Heating capacity

Btu/h 14500 18730 24192

Power Consumption - cooling Watt 1715 2155 2680

Power Consumption - Heating Watt 1490 1950 2410

Operating Current (cooling/Heating) Amp 8.0/7.1 10.2/9.4 12.7/11.4

E.E.R - Energy Efficiency Ratio Cooling 8.3 8.6 8.91

C.O.P - Coefficient Of Performance Heating 2.85 2.84 2.94

Refrigerant Charge gr. 1200 1610 2000

Moisture Removal Lit/h 2 2.7 3.6

Power Supply V/Ph/Hz 230V, 1Ph, 50Hz or 400V, 3Ph, 50Hz

Condensate Lines - Drain Ф-mm (in) 19 (3/4")

Time Delay Fuse Amp. C-10 C-16 C-16

Notes:

1. Nominal cooling capacity based on indoor air temp.

27ºC db/19.5ºC wb and outdoor air temp. 35ºC db/24º wb.

2. Nominal heating capacity based on indoor air temp.

21ºC db and outdoor air temp. 7.5ºC db/6.1ºC wb.

-4-

2.1.2 Outdoor Unit Data – Models CU150, CU200, CU250

Model CU150 CU200 CU250

Casing color RAL 7032 RAL 7032 RAL 7032

Dimensions (LxDxH) mm 900x380x585 900x380x585 900x380x585

m3/h 2465 3230 3400

Air flow (at high speed)

cfm 1450 1900 2000

Noise Level (see note 1) dbA 44 46 46

Fittings Type Flare Flare Flare

Expansion Device Capillary Tube Capillary Tube Capillary Tube

Axial Fan Diameter/No. mm 500/1 500/1 500/1

Outdoor Fan Motor KW 0.15 0.15 0.15

Motor Capacitor µF/Volt 5/400 5/400 5/400

Speed (High/Low) R.P.M 900/700 900/700 900/700

Face Area m²/ ft² 0.34/4.1 0.34/4.1 0.34/4.1

Tube Diameter Inch 3/8" 3/8" 3/8"

Rows Deep 2 3 3

Coil

Fins Spacing Per Inch 12 12 12

Net Weight Kg. 53 71 73

Notes:

1. Noise level measured at a 4 m. distance in free field.

Unique CU Series Guide

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