UNTES URTP055 User guide

ROOF TYPE AIR CONDITIONER
INSTRUCTIONS FOR
INSTALLATION, COMMISSIONING, MAINTENANCE and USE

Please read these instructions first!
Dear Customer,
Thank you for choosing UNTES. Please be sure that all of our products are produced in modern production
facilities and subjected to a continuous quality control procedure to provide you the highest performance.
For that reason, we ask you to read the whole instruction manual before you use the product and keep it as a
reference guide for future use.
• Read the instruction manual before you install and start-up the product.
• Comply with the information about security.
• Keep the instruction manual for future use.
Yours sincerely,
Untes Air Conditioning Systems

TSB-KK-008 rev.00
TABLE OF CONTENT
TABLE OF CONTENT ..................................................................................................................................3
1. INTRODUCTION AND GENERAL NOTIFICATIONS .......................................................................7
1.1. General Warnings.......................................................................................................................................7
1.2. Signs and Marks Used on the Product......................................................................................................10
1.3. Operation Limits.......................................................................................................................................11
1.4. List of Spare Parts.....................................................................................................................................12
1.5. Documents Provided with the Unit...........................................................................................................12
2. EQUIPMENT DESCRIPTIONS AND OPERATION PRINCIPLES .................................................12
2.1. Data Panel and Microprocessor................................................................................................................12
2.2. Compressors .............................................................................................................................................13
2.3. Lubricants .................................................................................................................................................13
2.4. Condensers................................................................................................................................................13
2.5. Outer Unit Fans.........................................................................................................................................13
2.6. Inner Unit Fans .........................................................................................................................................13
2.7. Thermostatic Expansion Valve.................................................................................................................14
2.8. Sensors......................................................................................................................................................14
2.9. Filters........................................................................................................................................................14
2.10. Refrigerant (R410A)...............................................................................................................................15
2.11. Free Cooling and Heating.......................................................................................................................15
3. INSTALLATION.......................................................................................................................................15
3.1. Transport and Conservation......................................................................................................................15
3.2. Device placement and Considerations......................................................................................................17
3.3. Installation of Unit Body and Components..............................................................................................18
3.4. Montage of Air Ducts...............................................................................................................................19
3.5. Conservation Precautions for the Device from External airConditions ...................................................21
3.6. Assemble of Device Accessories..............................................................................................................21
3.7. Drainage Connection................................................................................................................................22
4. SIZE INFORMATION .............................................................................................................................23
4.1. Size Data of the Device ............................................................................................................................23
4.2. Size Data of Roof Connector....................................................................................................................25
4.2.1. Side output.............................................................................................................................................25
4.2.2. With Side Output Exhaust Fan..............................................................................................................26

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4.2.3. With Side Output Return Fan................................................................................................................27
4.2.4. Down Output .........................................................................................................................................28
4.2.5. With Down Output Exhaust Fan............................................................................................................29
4.2.6. With Down Output Return Fan..............................................................................................................30
5. TECHNICAL AND CAPACITY DATA.................................................................................................31
5.1. Device Tables ...........................................................................................................................................31
6. ELECTRICAL DATA...............................................................................................................................33
6.1. Power Data of Basic Elements and Options.............................................................................................33
6.2. Electricity Connection..............................................................................................................................34
6.3. Voltage Phase Instability..........................................................................................................................35
6.4. Area Control Cabling................................................................................................................................35
6.5. Motor Tables.............................................................................................................................................36
7. ADDITIONAL GAS-FIRED HEATING OPTION................................................................................39
7.1. Introduction...............................................................................................................................................39
7.2. Gas Connection.........................................................................................................................................40
7.3. Chimney Connection................................................................................................................................41
7.4. Operation Limits.......................................................................................................................................42
7.5. Controls to be Considered Before Commissioning..................................................................................42
7.6. Commissioning.........................................................................................................................................42
7.7. Service and Maintenance..........................................................................................................................42
7.8. Failure and Troubleshooting.....................................................................................................................42
8. ADDITIONAL HOT WATER COIL OPTION .....................................................................................44
8.1. Introduction...............................................................................................................................................44
8.2. Pipe Connections of Heating Water .........................................................................................................44
8.3. Operation Limits.......................................................................................................................................46
8.4. Controls to be Considered Before Commissioning..................................................................................46
8.5. Commissioning.........................................................................................................................................47
8.6. Service and Maintenance..........................................................................................................................47
8.7. Failure and Troubleshooting.....................................................................................................................47
9. ADDITIONAL ELECTRIC HEATER OPTION...................................................................................47
9.1. Introduction...............................................................................................................................................47
9.2. Power Cable Connections of Heating.......................................................................................................47
9.3. Operation Limits.......................................................................................................................................47
9.4. Controls to be Considered Before Commissioning..................................................................................48

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9.5. Commissioning.........................................................................................................................................48
9.6. Service and Maintenance..........................................................................................................................48
9.7. Failure and Troubleshooting.....................................................................................................................48
10. COMMISSIONING (COOLING ONLY OR HEAT PUMP).............................................................48
10.1. Pre-Controls............................................................................................................................................49
10.1.1. Control of Power Supply Connection..................................................................................................49
10.1.2. Control of Additional Heater Connections..........................................................................................49
10.1.3. Control of Air Duct Connections and Air Filters ................................................................................49
10.1.4. Control of Heat and Humidity Sensors................................................................................................50
10.1.5. If Exists, Control of Remote Control’s Second Interface....................................................................50
10.1.6. Control of Electric Equipment.............................................................................................................51
10.1.7. Operation Control of Cooling Circuit..................................................................................................51
10.1.8.Status of Gas Charge in the Circuit ......................................................................................................52
10.1.9. Evaporation Pressure...........................................................................................................................53
10.1.10. Condensation Pressure.......................................................................................................................53
10.1.11. Dirt Status of Filters in the Liquid Line.............................................................................................53
10.1.12. Power Released by the Compressor ..................................................................................................54
10.1.13. Operation Status of the High-Pressure Switch ..................................................................................54
10.1.14. Operation Status of the Low-Pressure Switch...................................................................................54
10.1.15. Operation Temperature of the Compressor .......................................................................................54
10.2. Procedure of Start Up and Operation......................................................................................................54
11. ACCESSORIES AND OTHER OPTIONS...........................................................................................55
11.1. CO2 Detector..........................................................................................................................................55
11.2. Smoke Detector ......................................................................................................................................55
11.3. Filter Dirty Warning...............................................................................................................................55
11.4. Indoor Air Flow Control.........................................................................................................................55
11.5. Speed Control of Condenser Fan............................................................................................................55
11.6. Hydrophilic and Epoxy Coating.............................................................................................................55
11.7. Heat Exchanger Protection Grill.............................................................................................................55
11.8. Gravity Damper......................................................................................................................................55
11.9. Return Fan ..............................................................................................................................................55
11.10. Power Exhaust Fan...............................................................................................................................55
12. CONTROL PANEL.................................................................................................................................56
12.1. Installing and Using the Autocontrol Unit..............................................................................................56