Related Manuals for Hisense AVW-28H3FH
Summary of Contents for Hisense AVW-28H3FH
- Page 1 Installation & Maintenance Manual VRF AIR-CONDITIONER (HEAT PUMP) OUTDOOR UNIT - Outdoor Units - MODEL AVW-28H3FH M00377Q ORIGINAL INSTRUCTIONS...
- Page 3 HISENSE HISENSE distributor HISENSE Install these air conditioners by local regulations or standards. Temperature Maximum Minimum Indoor 70°F DB / 59°F WB (21°C DB / 15°C WB) 90°F DB / 73°F WB (32°C DB / 23°C WB) Cooling Operation Outdoor...
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Page 4: Safety Summary
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-tightness test. These types of gases are extremely dangerous and can cause an explosion. -
Page 5: Checking Product Received
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 HISENSE... -
Page 6: Table Of Contents
TABLE OF CONTENTS 1. Safety Summary..........................1 2. Structure............................1 2.1 Outdoor Unit & Refrigerant Cycle....................1 2.2 Necessary Tools and Instrument List for Installation..............3 3. Transportation and Handling......................4 3.1 Transportation..........................4 3.2 Handling of Outdoor Unit......................4 4. -
Page 7: Safety Summary
1. Safety Summary 10 . (3 meters) 2. Structure -AVW-28H3FH 2 3 4 2 3 4 Compressor Crankcase Heater Propeller Fan Heat Exchanger Vibration Absorbing Rubber Strainer Distributor Air Inlet Reversing Valve Air Outlet Electrical Expansion Valve Base assembly Stop Valve for Liquid Line... - Page 8 <Refrigerant Cycle> unit: in. Outdoor Unit-AVW-28H3FH Liquid Line Refrigerant Piping Connection Gas Line Refrigerant Piping Connection Refrigerant Flow Direction(Cooling Operation) Refrigerant Flow Direction(Heating Operation) Field Refrigerant Piping Flare Connection Remark Compressor Heat Exchanger Electrical Expansion Valve Strainer Distributor Check Joint...
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Page 9: Necessary Tools And Instrument List For Installation
Necessary Tools and Instrument List for Installation Tool Tool Tool Tool Handsaw Copper Pipe Bender Spanner Leveller Phillips Clamper for Solder- Manual Water Pump Charging Cylinder Screwdriver less Terminals Hoist Vacuum Pump Pipe Cutter Gauge Manifold (for Indoor Unit) Refrigerant Gas Brazing Kit Cutter for Wires Ammeter... -
Page 10: Transportation And Handling
Handling of Outdoor Unit 3. Transportation and Handling Transportation Transport the product as close to the installation Do not put any foreign material into the location as possible before unpacking. outdoor unit and check to ensure that none exists in the outdoor unit before the installation and test run. -
Page 11: Outdoor Unit Installation
4. Outdoor Unit Installation Factory-Supplied Accessories Direction of Strong Wind Check to ensure that the following accessories are packed with the outdoor unit. Table 4.1 Factory-Supplied Accessories Direction of Air Discharge • Install near the wall to avoid facing the wind NOTE directly. -
Page 12: Service Space
Service Space Install the outdoor unit with a sufficient space around the outdoor unit for operation and maintenance as shown below Fig4.1. Upper Side is Open Unit: in. Single Installation Single Installation Multiple Installation Upper Side is Open Upper Side is Open Above of two sides of the unit is open. - Page 13 (3) Example of fixing outdoor unit by anchor (7) The whole of the base of the outdoor unit should be installed on a foundation. When bolts. using vibration-proof mat, it should also be Unit : ( in.) positioned the same way. When installing the outdoor unit on a field- supplied frame, use metal plates to adjust the frame width for stable installation as...
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Page 14: Refrigerant Piping Work
G Piping Thickness and Material Refrigerant Piping Work Use the pipe as below. Table 5.1 Piping Size Use refrigerant R410A in the refrigerant cycle. Unit :in.(mm) Do not charge oxygen, acetylene or other flammable and poisonous gases into the Diameter Thickness Material refrigerant cycle when performing a leakage... - Page 15 Table 5.4 Indoor Unit Type List Mini Table 5.5 System Combination Minimum Individual Minimum Maximum Recommend Combination Operation Capacity Model Combination Combination Combination Range Quantity Quantity Quantity （kBtu/h） 50%~125% (*1) The connection ratio should not be bigger than 100% for systems where all indoor units may operate at the same time;...
- Page 16 Table 5.6 Refrigerant Pipe System System Branch pipe for Line Branch Item Example Oil Trap is recommended at Outdoor Unit This is a system of one outdoor unit every 32.8ft. (10meters) lift and four indoor units. Pipe materials are not provided by the manufacturer. No.3 No.1 No.2...
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Page 17: Branch Pipe For Line Branch
5.3 Branch Pipe for Line Branch T Shape Branch Pipe Table H FQ - 052F Branch Pipe Unit in. Inner Diameter... -
Page 18: Piping Connection
5.4 Piping Connection (4) Pipes can be connected from 4 directions as shown Fig. 5.1. Make a knock-out hole Pipes can be connected from 4 directions. in the front pipe cover or bottom base to pass through the hole. After removing the pipe cover from the unit, punch out the holes following the guide line with screwdriver and a hammer. -
Page 19: Air Tightness Test
Operation of the stop valve should be performed After removing rear piping cover, punch according to the below. out the "C" holes along the guide line. Rear Cover <Stop Valve for AVW-28H3FH <Stop Valve> NOTE: To avoid damage protect cables and pipes with adequate insulation(Field-Supplied). -
Page 20: Vacuum Pumping And Charging Refrigerant
Spindle Valve Torque ft.·lbs(N Check for any gas leakage by gas leak Liquid detector or forming agent. Use the foaming agent which does not generate 6.6~8.1 (9~11) 5.2~6.6 (7~9) the ammonia (NH ) by chemical Hexagonal Wrench Size in. (mm) reaction. -
Page 21: Indoor Unit
Never use the refrigerant charged in the outdoor unit for air purging. Insufficient refrigerant will lead to failure. Thermal Insulation Finishing Work Wrap tape around thermal insulation of gas pipe and liquid pipe. Indoor Unit Cover the flare nut and union of the piping connection with thermal insulation. -
Page 22: Additional Refrigerant Charge Calculation
1. Calculating Method of Additional Refrigerant Charge (W lbs) <EXAMPLE> AVW-28H3FH 1/4×13.1ft. 1/4×13.1ft. 1/4×13.1ft. 1/4×13.1ft. 3/8×49.2ft. 3/8×9.8ft. 3/8×9.8ft. See Example for Model AVW-28H3FH, and fill in the following table. Pipe Diameter (in.) Total Piping Length (ft.) Additional Charge (lbs) W11= 0.0201 1.38 49.2 W12= 0.70... - Page 23 4. Notice of Additional Charge When the system is connected one-to-one, the connection ratio must be 100%, and the additional refrigerant need to be reduced as the following requirements： Table 5.9 Reduced Refrigerant Charge for Special Indoor Units (lbs) Indoor Unit Type 4-Way Model Connection ratio...
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Page 24: Caution Of The Pressure By Check Joint
Caution of the Pressure by Check Joint When the pressure is measured, use the check joint of gas stop valve ((A) in the figure below) and use the check joint of liquid piping ( (C) in the figure below) . At that time, connect the pressure gauge according to the following table because of high pressure side and low pressure side changes by operation mode. -
Page 25: Collecting Refrigerant
Collecting Refrigerant Electrical Wiring When the refrigerant should be collected into the outdoor unit due to indoor/outdoor unit relocation, collect the refrigerant as follows. G Turn OFF the main power switch to the (1) Attach the manifold gauge to the gas stop indoor unit and the outdoor unit and wait for valve and the liquid stop valve. -
Page 26: Electrical Wiring Connection
Electrical Wiring Connection (1) Connect the power supply wires to the (2) Connect the wires between the outdoor terminal board in the electrical control box and indoor units to terminals 1 and 2 on the of both outdoor unit and indoor unit. And terminal board. - Page 27 208/230V~60Hz Distribution Box or Pull Box 208/230V~60Hz Fig. 6.2 Wiring Connection (208 /2 30V ~60Hz) (5) In the case that a conduit tube for field-wiring is not used, fix rubber bushes with adhesive on the panel. Model Power Source MCA ( A ) MOP ( A ) Minimum transmission cable size 23.2...
- Page 28 NOTES: (1) Field wiring shall conform to local laws and regulations, and all wiring operations must be performed by qualified professionals. (2) Refer to relevant standards for above-noted power cord size. (3) Where power cord is connected through junction box in series, be sure to determine the total current and choose wires based on the table below 6.1.
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Page 29: Test Run
Install a multi-pole main switch with a space of 1/8 inch (3.0mm) or more between each phase. 7.Test Run Test run should be performed according to the Table 7.1 on page 24. Use the Table 7.2 on page 26 for recording test run. G Do not operate the system until all the check points have been cleared. - Page 30 Table 7.1 Checking of Wire Connection by Test Run...
- Page 32 Table 7.2 Test Run and Maintenance Record MODEL: SERIAL. No. COMPRESSOR MFG. No. CUSTOMER'S NAME AND ADDRESS: DATE: 1. Is the rotation direction of the indoor coil fan correct? 2. Is the rotation direction of the outdoor coil fan correct? 3.
- Page 33 Table 7.3 Alarm Code " # &...
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Page 34: Safety And Control Device Setting
Safety and Control Device Setting Fan Motor Protection When the thermistor temperature is reached to the setting, motor output is decreased. The other way, when the temperature becomes lower, limitation is cancelled. Outdoor Unit Model(kBtu/h) Pressure Automatic Reset,Non-Adjustable Switch High Pressure Cut-Out Psi(MPa) - Page 36 1121984 Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd. Add.:No. 218, Qianwangang Road, Economic and Technological Development Zone, Qingdao, China http://www.hisensehvac.com E-mail：export@hisensehitachi.com The Company is committed to continuous product improvement. We reserve the right, therefore, to alter the product information at any time and without prior announcement.
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