Table of Contents
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Installation
&
Maintenance
Manual
WATER-SOURCE
INVERTER-DRIVEN
MULTI-SPLIT
AIR CONDITIONER
(HEAT PUMP)
- Outdoor Units -
RATED POWER SUPPLY
～
220-240V
/50HZ
～
220V
/60HZ
MODEL
AVWW - 28UCSA
AVWW - 38UCSA
AVWW - 48UCSA
AVWW - 54UCSA
AVWW - 28U2SA
AVWW - 38U2SA
AVWW - 48U2SA
AVWW - 54U2SA
P 0 0 4 6 7 Q
ORIGINAL INSTRUCTIONS
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Table of Contents
Related Manuals for Hisense AVWW-28UCSA
Summary of Contents for Hisense AVWW-28UCSA
- Page 1 Installation & Maintenance Manual WATER-SOURCE INVERTER-DRIVEN MULTI-SPLIT AIR CONDITIONER (HEAT PUMP) - Outdoor Units - RATED POWER SUPPLY MODEL AVWW - 28UCSA AVWW - 38UCSA ～ 220-240V /50HZ AVWW - 48UCSA AVWW - 54UCSA AVWW - 28U2SA AVWW - 38U2SA ～...
- Page 3 Hisense Hisense Hisense 32DB/23WB 21DB/15WB Water-source 27DB 15DB Water-source The water temperature range for reliable cooling operation is 15 above. The air conditioner may shutdown during cooling operation while the water temperature is 10 , as the indoor-unit output is too small or...
- Page 4 SAFETY SUMMARY G Use refrigerant R410A in the refrigerant cycle. Do not charge oxygen, acetylene or other flammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air-tight test. These types of gases are extremely dangerous and can cause an explosion.
- Page 5 SAFETY SUMMARY G Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters from strong electromagnetic wave radiators such as medical equipment. G Supply electrical power to the system to energize the oil heater for 12 hours before start-up after a long shutdown.
- Page 6 Therefore, the utilization of the unit other than those indicated in these instructions is not recommended. Please contact your local agent, as the occasion arises. ’ ’ Hisense s liability shall not cover defects arising from the alteration performed by a customer without ’ ’...
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Page 7: Table Of Contents
TABLE OF CONTENTS 1. Safety Summary ........................1 2. Structure ........................... 1 Outdoor Unit & Refrigerant Cycle ..................1 Necessary Tools and Instrument List for Installation............1 3. Transportation and Handling ....................3 Combination of Indoor Unit and Outdoor Unit.............. -
Page 9: Safety Summary
1. Safety Summary 2. Structure Please refer to technical manual 2.2 Necessary Tools and Instrument List for Installation Tool Tool Tool Tool Handsaw Copper Pipe Bender Spanner Leveller Clamper for Solder- Screwdriver Manual Water Pump Charging Cylinder less Terminals Hoist Vacuum Pump Pipe Cutter Gauge Manifold... - Page 10 Use tools and measuring instruments only for the new refrigerant which is directly touch to refrigerant. ": Interchangeability is available with current R22 G: only for Refrigerant R410A (No Interchangeability with R22) : Prohibited !: only for Refrigerant R407C (No Interchangeability with R22) Interchangeability Reason of Non-Interchangeability and Attention Measuring Instrument and Tool...
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Page 11: Transportation And Handling
3. Transportation and Handling 3.1 Combination of Indoor Unit and Outdoor Unit The following indoor units can be combined with the outdoor unit Table.3.1 Indoor Unit Type List Rated Capacity (KBtu/h) Indoor Unit 07 09 12 14 17 18 22 24 27 30 38 48 54 Ceiling Ducted Type Low-Height Ceiling Ducted Type... -
Page 12: Outdoor Unit Installation
4. Outdoor Unit Installation Install the outdoor unit where it is in the shade or it will not be exposed to direct sunshine or radiation from high temperature heat soure. 4.1 Initial Check Install the outdoor unit where the temperature Install the outdoor unit with a sufficient space is 0 40 , the relative humidity is under 80... -
Page 13: Installation Work
(4) Provide a strong and correct foudation so that: 4.2 Installation Work a) The outdoor unit is not declined. (1) Secure the outdoor unit with the anchor bolts b) Abnormal sound does not occur. and add 5mm or thicker washer between the c) The outdoor unit does not fall down due to base of outdoor unit and the concrete. -
Page 14: Piping Materials
G Flaring Dimension 5. Refrigerant Piping Work Perform the flaring work as shown below. Use refrigerant R410A in the refrigerant cycle. Do not charge oxygen, acetylene or other Diameter flammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air-tight test. -
Page 15: Piping Connection
G Requirement for Water Inlet Filter (40 mesh G Position of Connection Pipes to the Outdoor Unit recommended) 28 ~ 54 Outlet Water Pipe Requirement for FIlter Medium Nominal Pressure Liquid Pipe Water Gas Pipe NOTE Intlet Water Pipe G Filter must be installed on the water inlet pipe of the unit in order to prevent the plate heat exchanger from being blocked by impurities. - Page 16 G Water Pipe Connection of the Outdoor Unit (recommended) Name Chart Pressure Gauge Water Inlet Water outlet Flexible Connector Water Filter Thermometer Stop Valve Control Valve Flow Switch Fig. 5.2 Water Pipe Connection G Notes for Water Pipe Connection G Essential Requirement for Water Pipe Connection (1) Notice the position of connection pipe, do not (1) Before installation, flush all water pipes thoroughly connect inlet and outlet pipe reversely.
- Page 17 G Water Flow Installation G Wiring of Terminal TB1 (1) Terminals of water flow switch should be placed Please wiring as the following table, otherwise, it will in proper positon for easy wiring. cause the damage of PCB. (2) The direction arrow marked on water flow switch should be in accordance with the direction of Terminal Control Object...
- Page 18 G Wiring of Water pump G Water Treatment The running signal of water pump can be sent through Units are recommended to be used in the situation with circulating water cooling tower, especially closed cooling terminal TB1-Pl, PN of the unit. tower.
- Page 19 G Refrigerant Piping Connection G Water Piping Connection (1) Confirm that the valve is closed. (2) Prepare various of field-supplied pipes and elbows. Perform soldered connection according to operating requirements. (3) For pipe connection on stop valves, tightening work should be done with double spanner. Do not apply the double spanner work here.
- Page 20 G Refrigerant evacuation and charging procedure should be performed according to the following instructions and Fig. 5.8. (1) Although the stop valve has been closed before shipment, check to ensure the stop valve is closed before installation. (2) Connect the indoor and outdoor unit with field-supplied refrigerant piping.
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Page 21: Stop Valve
5.3 Stop valve Operation and tightening of the stop valve should An excess or a shortage of refrigerant is the main be performed according to the following Table 5.5 cause of trouble to the units. Charge the correct and 5.6, respectively. refrigerant quantity as shown in the item 5.4 and 5.5. -
Page 22: Additional Refrigerant Charge Calculation
5.4 Additional Refrigerant Charge Calculation Additional Charge of Refrigerant R410A Although refrigerant has been Charged into this unit, it is required that additional refrigerant be charged according to piping length. A. Determine an additional refrigerant quantity according to the following procedure, and charge it into the system. -
Page 23: Refrigerant Piping Work
5.5 Refrigerant Piping Work (1) Configuration Refrigerant Piping According to the Following Table. Table 5.7 Pipe Dimension of Outdoor Unit Piping External Diameter Piping Length The Maximum Branch Pipe Type Model Total Piping Length Gas Pipe Liquid Pipe Actual Length HFQ-102F Actual Length (2) Piping System... - Page 24 Pay Special Attention to Refrigerant Gas Leakage Pay attention to the indoor critical concentration of refrigerant to avoid accidental gas leakage before installing air conditioning systems. Totally Charged Refrigerant Quantity in System(kg) Critical Concentration(kg/m ) Room Space for Each Indoor Unit(m ) 0.3(kg/m ) In the case that the detected concentration is larger than 0.3kg/m , take the following actions 1) Prepare a gas leakage detector and exhaust fan controled by it.
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Page 25: Branch Pipe For Line Branch
5.6 Branch Pipe for Line Branch Table 5.8 T Shape Branch Pipe HFQ-102F Branch Pipe Gas Line Q'ty: 2 Liquid Line Unit: mm, ID: Inner Diameter, OD: Outer Diameter... -
Page 26: Electrical Wiring
6. Electrical Writing Power Source Wiring Turn off the main power switch of indoor unit and (AC220V/50Hz) outdoor unit and wait for more than 3 minutes before Flow Switch Signal input Pump Switch Signal Output electrical wiring work or periodic check. Communication wire between Ground Terminal the outdoor and indoor unit. -
Page 27: Electrical Wiring Connection
6.2 Electrical Wiring Connection 6.2.2 Connecting Between Indoor Unit and Outdoor Unit 6.2.1 For Outdoor Unit Connect the electrical wires between the Indoor unit and the outdoor unit as shown in Fig.6.2. The electrical wiring connection for the outdoor unit is Check to ensure that the terminal for power source shown in Fig.6.1. - Page 28 Outdoor Unit Pump AC Contactor Leakage Flow Switch Protector Fuse Distribution Box or Pull Box*2 Distribution Box or Pull Box*2 Distribution Box or Pull Box*2 Main Switch Power Supply N0.0 Indoor Unit N0.1 Indoor Unit Power Supply Communication Line(Shielded Twist Pair Cable) DC5V(Non-Pole Transmission H-LINK System) Remote Control Remote Control...
- Page 29 Field Minimum Wire Sizes for Power Source Earth Earth Power Source Cable Size(mm ) Transmitting Cable, Pump Control Size (mm ) Wire Model Power Supply Size EN60335-1 *1 EN60335-1 *1 (mm ) ～ 220-240V /50HZ 0.75 ～ 220V /60HZ NOTES: 1) Follow local codes and regulations when selecting field wires.
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Page 30: Dip Switch Setting Of Outdoor Unit
6.3 Outdoor Unit Dip-Switch Setting Turn off all power switch before setting Dip-Switch,else Dip-Switch is of no effect. Follow this table setting Dip-Switch, symbol denote the position of Dip-Switch contact joint. Optional Function Ref. Cycle No. Communication All OFF: Shipment Set Test Run Setting Setting... -
Page 31: Test Run
7. Test Run Test run should be performed according to the Table 7.1 on page 24. And use the Table 7.2 on page 25 for recording test run. Check Water Pipe Connection Before Test Run (A) Before test run, reconfirm that all water pipe work is in correct states, water filter has been settled on water entry side and water flow switch has been installed properly. - Page 32 NOTE: "TEST RUN" shall be performed with each refrigerant cycle (each outdoor unit). (1) Turn ON the power source of the units. Number of indoor units Hisense (2) Procedure for "TEST RUN" mode of remote control switch. HIGH SET TEMP.
- Page 33 Table.7.2 Test Run and Maintenance Record and all pipes been checked for no leakage (e.g. Flow Switch)
- Page 34 Content of Abnormality Leading Cause Code No. Stop Code Low temperature of heat source water Abnormal Water Temperature Temperature sensor of outdoor water outlet Temperature sensor of double tube gas outlet Low pressure sensor CH Units connect asynchronous warm and cold Connections of CH Units incorrectly outdoor unit Indoor-outdoor connection has more than 2 CH units...
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Page 35: Safety And Control Device Setting
8. Safety and Control Device Setting Compressor Protection The compressor is protected by the following devices. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Oil Heater: This band type heater protects against oil foaming during cold starting, and it is energized while the compressor is stopped. -
Page 36: Maintenance
9. Maintenance Regularly inspect units in accordance with the same items as described in the chapter "Test Run". To Plate heat exchanger cleaning should be conducted by ensure the reliability and service life, the following professionals. Please ask an experienced chemical additional items should be paid with special attention. - Page 37 Cleaning Steps 9.1 Install the Clean Circuit: Stop the water source VRF system. Stop circulating water pump in the system. Close shut-off valve of water inlet and outlet pipes, and install an anti-acid-type water pump to form water circulation. 9.2 Inspect the Clean Circulating Circuit Fill cleaning water tank with pure water and start anti-acid-type water pump.
- Page 38 P00467Q , 201 .
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