Related Manuals for Daikin UAA-ST3M Series
Summary of Contents for Daikin UAA-ST3M Series
- Page 1 INSTALLATION & MAINTENANCE MANUAL AIR-COOLED CHILLER (SINGLE SCREW COMPRESSOR) UAA-ST3M IM-UAA -0620(2)-DAIKIN Part Number: C08019039757B...
- Page 3 ⚠ WARNING Before starting the installation of the unit, please read this manual carefully. Starting up the unit is absolutely forbidden if all instructions contained in this manual are not clear. Key to symbols Failure to comply with this instruction may damage the machine or affect its operation. Note concerning safety in general or compliance with laws and regulations.
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Page 4: Table Of Contents
TABLE OF CONTENTS GUIDELINE TABLE OF CONTENTS GUIDELINE INTRODUCTION General Application Nomenclature ABOUT SAFETY Transportation Lifting Installation MAJOR COMPONENTS LOCATION WORKING PRINCIPLE AND TECHNICAL DATA Working principle Operating range Chiller Physical Data HANDLING Transportation Receiving the machine Lifting INSTALLATION Installation and Foundation Chiller Outline Dimension and Load Distribution Chiller Piping Electrical Installation... -
Page 5: Introduction
All activities must be carried out in compliance with local laws and regulations. 1.2.2 Warning This manual has been prepared as a technical support only. Daikin has prepared with the best of their knowledge. No explicit or implicit warranty is provided about the completeness, accuracy and reliability of its content. -
Page 6: Nomenclature
Nomenclature UAA 105 ST 3 M – F BB Efficiency Class BB - High Efficiency Power Supply F - 380 ~ 400V / 50Hz Manufactured Country M - Malaysia Refrigerant Type 3 - R134a Model ST - Standard Cooling Capacity 105 - 450 USRT Chiller Name UAA - Air cooled screw chiller... -
Page 7: About Safety
2 ABOUT SAFETY Transportation ⚠ WARNING • Transportation must be carried out in compliance with local laws and regulations. ⚠ CAUTION • The stability of the equipment during shipping must be ensured. • Block equipment from sliding on lorries to prevent damage to the panels and base frame. -
Page 8: Installation
Installation Unit installation ⚠ WARNING Installation should be performed by experienced personnel. Avoid installing the equipment in a place that could be dangerous during maintenance operations, such as (but not limited to) platforms without parapets or railings, or areas not complying with the clearance requirements. ⚠... - Page 9 Electrical installation ⚠ CAUTION • All electrical connections to the machine must be carried out in compliance with laws and regulations in force. • All installation, operating and maintenance activities must be carried out by qualified personnel. • Please refer to the specific wiring diagram for the machine that you have purchased, and which was sent with the unit.
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Page 10: Major Components Location
3 MAJOR COMPONENTS LOCATION Figure 1 Chiller Front View 1 System (UAA105- UAA220) Figure 2 Chiller View (1 System) P a g e... - Page 11 2 System (UAA 245- UAA450) Figure 3 Chiller View (2 System) Item Description Fan Assembly Coil Assembly Compressor Evaporator Electronic Expansion Valve Compressor Terminal Box Filter Drier Economizer P a g e...
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Page 12: Working Principle And Technical Data
4 WORKING PRINCIPLE AND TECHNICAL DATA Working principle Figure 4 UAA Schematic Diagram P a g e... -
Page 13: Operating Range
The working principle of UAA chillers is showed as Figure 4: 1. The low-temperature and low-pressure refrigerant enters the compressor and becomes a high-temperature and high-pressure gas after compressed, then enters the condenser from compressor, and exchanges the heat with cooling air pass through condenser coil. -
Page 14: Chiller Physical Data
Chiller Physical Data 1035 1172 1326 1434 1604 Nominal cooling capacity USRT ×10 kcal/h Total power input for cooling 115.5 138.5 178.7 201.3 216.1 242.6 277.0 317.2 357.4 402.6 432.2 485.2 Power supply 380-400V/3N~/50Hz Maximum running current 1011 1080 1275 Starting current 1057 1139... -
Page 15: Handling
5 HANDLING Transportation Block equipment from sliding on lorries to prevent damage to the panels and base frame. Avoid bumping, jolting and impacts during unloading and/or moving the machine. Do not push or pull the equipment from any part other than the base frame. Failure to follow above-mentioned instructions could cause serious damages for which the manufacturer will not be held liable. - Page 16 Hanging Point 1880 2820 3070 1300 1530 1300 1110 1650 1600 1650 2115 1200 2115 1000 2760 1260 2760 1000 3000 1800 2760 1000 2955 2670 2760 2050 2050 1260 2050 2050 2050 2050 1260 2050 2050 2180 1240 2180 1460 2180 1240...
- Page 17 • UAA 105 – UAA 150 • UAA175 – UAA220 • UAA204 - 220 13 | P a g e...
- Page 18 • UAA245 – UAA348 • UAA380 – UAA450 Figure 7 Hanging Method 14 | P a g e...
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Page 19: Installation
• To minimize the vibration and noise transferred to building and surroundings, spring shock absorbers (accessories sent together with equipment) must be installed. Note: DAIKIN is not responsible for any equipment issue resulting from an Improper designed or constructed foundation. - Page 20 Improper installation Proper installation A: Accumulated snow depth Do not install the chiller in a place where snow can be accumulated. Improper installation 6.1.3 Unit Clearance • Clearance requirement for equipment maintenance: 16 | P a g e...
- Page 21 • Clearance requirement for equipment installation: Not less than 1500mm Not less than 2500mm Not less than 3500mm 17 | P a g e...
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Page 22: Chiller Outline Dimension And Load Distribution
Chiller Outline Dimension and Load Distribution 6.2.1 Spring Isolator Position • Single System (UAA105 – UAA220) Spring Isolator Distance (Round Hole 18.0mm) UAA-ST3M Total Base Length 2250 3250 3150 4150 2025 2025 5050 4050 5050 2475 2475 6000 2475 2475 6000 1950 1950... - Page 23 • Dual System (UAA245 – UAA2) Spring Isolator Distance (Round Hole 18.0mm) UAA-ST3M Total Base Length 2443 2443 2443 8330 2058 2058 2058 2058 9230 1826 1826 1826 1826 1826 10130 2186 2186 2186 2186 2186 11930 2186 2186 2186 2186 2186 11930...
- Page 24 Total Spring Isolator Model (Round Hole 18.0mm) No. of UAA- Isolator ST3M C1-2330i C1-2330i C1-2510i C1-2510i C1-2330i C1-2330i C1-2510i C1-2510i C1-2080i C1-2080i C1-2330i C1-2330i C1-2330i C1-2080i C1-2080i C1-2330i C1-2330i C1-2330i C1-2080i C1-2080i C1-2080i C1-2330i C1-2330i C1-2330i C1-2080i C1-2080i C1-2080i C1-2330i C1-2330i C1-2330i C1-2080i...
- Page 25 6.2.2 Isolator Installation Provided isolator consists of one upper and lower housing, assembled telescoping and with a tap leveling adjustment bolt and jam nut. Installation step: Arrange the isolators at accessories box at the correct position of machine (refer to tables in section 7).
- Page 26 6.2.3 Unit Centre of Gravity Operating Net Weight Weight 1768 1769 1014 2193 1023 2197 1052 2531 1019 2554 1052 2778 1025 2799 1059 2833 1048 2874 1092 3471 1052 3525 1094 4321 1184 4423 1212 4977 1170 5080 1201 5476 1186 5589...
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Page 27: Chiller Piping
Chiller Piping 6.3.1 Recommended water system Installation illustration for the water system of a single equipment: Air vent valve 6.3.2 Recommended water system Piping must be designed as level and simple as possible. In this way, water resistance is reduced, and system performance is improved. - Page 28 The water system MUST have: 1. A strainer with at least 25 meshes per square inch must be installed on the equipment inlet water pipe, near the evaporator and heat recovery (if installed). The strainer prevents solid particles from entering the heat exchanger, as they could damage it or reduce its heat exchanging capacity.
- Page 29 ) = Rated cooling capacity of chiller (kW) × 0.0068 6.3.5 Setting the water outlet water temperature The workload of a Daikin water chiller is controlled by the outlet water temperature which can be set by using the equipment controller.
- Page 30 Daikin recommends a water quality that meets the following standards: Tendency Item Reference value Corrosion Softening pH value (25°C) 7.5~9.0 Electric conductivity (25°C) µS/cm <800 ����(���� ���� <200 − − 2− ����(���� ���� <200 2− ����(�������� Acid consumption (pH=4.8) <100 ����(��������...
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Page 31: Electrical Installation
Electrical Installation 6.4.1 Main power cable (incoming power supply) All wiring must comply with local codes and the national electrical code. • All the external distributed wires and breakers selected for the unit must match these conditions: the maximum operating current of the unit is satisfied, and malfunction will not be caused by startup current. - Page 32 6.4.2 Electrical note Dual Elem. Circuit System 1 System 2 Fuse Breaker Unit Model Fused Comp Fans Comp Fans Disc Sw 1000 1000 1200 1200 1000 1000 1200 1000 1200 1000 1200 1500 1200 1500 • Minimum circuit ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100% of the rated load amps for all other loads included in the circuit, per N.E.C.
- Page 33 • Maximum circuit breaker is based on 225% maximum plus 100% of the rated load amps for all loads included in the circuit, per circuit, per U.L. 1995 Fig. 36.2. Maximum circuit breaker rating = (2.25 x largest compressor RLA) + other compressor RLAs + (# fans x each fan motor FLA) 6.4.3 Field wiring connection 63 |...
- Page 34 Signal Signal type Remarks Passive dry Error signals Used to output error signals. See Figure 1. contact output Passive dry Used to control pump output. See Figure 2 and Pump control output contact output Figure 3. Passive dry Water flow switch Used to detection water flow.
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Page 35: Maintenance
7 MAINTENANCE Daily Maintenance 7.1.1 Refrigerant Cycle Maintenance of the refrigerant cycle includes maintaining a log of the operating conditions and checking that the unit has the proper refrigerant charge. At every inspection, the suction, and discharge pressures should be noted and recorded, as well chilled water temperatures and pressure drop. -
Page 36: Cleaning And Maintenance
moment, slightly heat up the refrigerant tank with a portable heater to increase internal pressure of the tank. 4. The other way to charge the refrigerant is to increase the height of the refrigerant tank. Lift the refrigerant tank above the condenser so the liquid refrigerant will flow into the condenser under gravitational force. -
Page 37: Long Idle Period Maintenance
Notes: Do not use the R22 and air mixture or oxygen to raise the pressure to prevent explosion. If there is a leak at brazing point, or a washer replacement is needed, it is necessary to reclaim all refrigerant before proceeding with the hot work or replacement work. - Page 38 Unit Maintenance and Inspection Interval and running time After After After After After After After After After After After After After After After After After Check List Replacement standard months months years years years years years years years years years years years years...
- Page 39 The customer shall bear the maintenance expenses incurred by check and replacement involved in the above table. • If a system fault occurs because the customer fails to maintain the unit as required by the above table or maintenance is improper in the warranty period, Daikin shall not be held responsible for it. 63 |...
- Page 40 Important Components Inspection Record Water side heat Air side heat Electrical control Item Compressor Valve Others exchanger exchanger cabinet Date Inspe- Cont- Date Inspe- Cont- Date Inspe- Cont- Date Inspe- Cont- Date Inspe- Cont Date Inspe- Cont Date Inspe- Cont- Interval ctor ctor...
- Page 41 Daily Inspection Record Discharge pressure Suction pressure Compressor Entering Leaving Discharge Suction Ambient (kpa) (kpa) capacity (%) temperature temperature temperature (C) temperature (C) temp. Date of evaporator of evaporator (°C) System System System System System System System System System System 63 | P a g e...
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Page 43: Service Procedure
★ The printing may deviate from the real products, please refer to the real object when purchasing. ★ All material is carefully reviewed. In case of any printing errors, DAIKIN bears no responsibility. Models, parameters and performance may change due to product improvement without further notification. - Page 45 CONTROL No. : FR-B1-022 (0) PAGE 1 OF 1 Installation Manual Format TITLE : REVISION HISTORY SHEET ORIGINATOR APPROVED BY REV. DATE REASON OF REVISION Name Signature Name Signature Chang Man 09-Jan-2019 ORIGINAL ISSUE Lim Jou Hui...