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Williamson-Thermoflo 9SRA-HE Installation & Service Manual

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Williamson-Thermoflo 9SRA-HE User Manual
Williamson-Thermoflo 9SRA-HE User Guide
Williamson-Thermoflo 9SRA-HE Online Manual

Text of Williamson-Thermoflo 9SRA-HE User Guide:

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _13 ADDITIONAL CHARGE AND DISTANCE Refrigerant suitable for a piping length of 20 ft (6 m) is charged in the outdoor unit at the factory. When the pipe is longer than 20 ft (6 m), additional charging is necessary. This operation can only be performed by a qualified refrigeration specialist. Additional amount must be added for each extra 3.3 ft (1 m), see the table below: Models Limit of tubing length ft (m) Limit of elevation between the two unit 20 (6) Models Additional refrigerant 20 g (0.7 oz) 30 g (1.06 oz) 40 g (1.41 oz) 9SRA-HE 12SRA-HE | 15SRA-HE

  • Installation & service manual _12 SYSTEM EVACUATION Condensing unit liquid and suction valves are closed to contain the charge within the unit. The unit is shipped with the valve stems closed and caps installed. Do not open the valves until the system is evacuated. 1. Connect the vacuum pump with 250-micron capability to the services valves. 2. Evacuate the system to 250 microns or less

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _21 PARTS LIST (OUTSIDE UNIT) REF. NO DESCRIPTION QTY 9SRAO-HE 12SRAO-HE 15SRAO-HE 18SRAO-HE 24SRAO-HE 1 Cabinet | Front L | Painted (including fan cover) 1 P00730 P00731 P00731 P00732 P00733 2 Control box cover 1 P00734 P00734 P00734 P00734 P00734 3 Propeller fan 1 P00738 P00738 P00738 P00739 P00739 4 Motor bracket 1 P00740 P00741 P00741 P00742 P00743 5 Fan motor 1 P00744 P00744 P00744 P00745 P00745 6 Nameplate (WILLIAMSON) 1 L00139 L00139 L00139 L00139 L00139 7 PCB outdoor 1 P00747 P00747 P

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _11 TIGHTENING REFRIGERANT PIPING CONNECTIONS Caution: Remove the protection caps on the pipes and connect the assembly piping to each connector. First, tighten the nuts manually and then with a wrench by applying the tightening torque shown below. 17 x 14 to 18 22 x 34 to 42 26 x 49 to 61 29 x 68 to 82 36 x 100 to 120 Class 2 (for R410A) Diamètre (mm) x Tightening torque (Nm) Applicable size 1/4 “ 3/8 “ 1/2 “ 5/8 “ 3/4 “ Flare nut size and tightening torque

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _16 TECHNICAL SPECIFICATIONS SPECIFICATIONS *Note: Design and specifications are subject to change without notice for product improvement. Comply with ARI STANDARD 210/240. Cooling Cooling Maximum Minimum Maximum Minimum Cooling Liquid Suction Width Height Depth Shipping Net Width Height Depth Shipping Net 12SRA-HE 12 000 13.5 R-410A 3.1 441 45-42-34 52 95 (35) 64 (18) 109 (43) 32 (0) 115 60 / 1 10.6 15 25 Flare 1/4 1/2 49 20 31 1/2 10 7/8 8 1/4 22 19 33 7/8 25 5/8 12 101 95 9SRA-HE 9 000 15 R-410A 1.9 382 44-40-33 50 95 (35) 64 (18) 109 (4

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _15 CHECKING AND TESTING OPERATIONS Perform the operation test after completing the gas leak check of the flare nut connections and the electrical connections. 1. To begin the test, turn on the power. 2. Press the auxiliary control button in the indoor unit or use the remote control to start the unit. 3. Check that all air conditioner functions are operating normally. A protection feature prevents the air conditioner from being started immediately after the unit has been turned off. There is a delay of 3 minutes for the air conditioner to restart and operate. 4. Press the auxiliary control button to end the operation test. 15 000-18 000-24 000 BTU 9 000-1

  • Williamson-Thermoflo 9SRA-HE, Attach the outdoor unit with 4 anchor bolts and nuts (not supplied) positioned as per dimensions A, B. 9SRAO-HE Caution: The outdoor unit should not be exposed to strong winds or where it is very dusty. - Take your neighbors into consideration so that they will not be disturbed by air blowing into their window or by noise. - Provide enough space between the wall and the unit, so that the airflow is not blocked. Also, for efficient operation, leave enough clearance on both sides and front. 24 in minimum 9 in minimum 16 in minimum 24 in minimum 12 in minimum Air inlet Air

  • Williamson-Thermoflo 9SRA-HE, When connecting the refrigerant tubing - Keep all tubing runs as short as possible. - Use the flare method for connecting tubing. - Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection. - Check carefully for leaks before starting the test run. Evaporator Condenser Compressor Capillary tube 3-Way valve 2-Way valve Indoor unit Outdoor unit Installation & service manual _9 REFRIGERATION LINE CONNECTIONS Models 9SRA-HE 12SRA-HE 15SRA-HE 18SRA-HE 24SRA-HE Refrigeration Tubing Connection metho

  • 1. The air conditioner shall be installed by a qualified technician in accordance with national and local electrical codes. 2. A disconnect switch shall be installed near the outdoor unit for easy disconnect of power to the air conditioner. 3. An electrical circuit dedicated to the air conditioner shall be used for the power supply to the air conditioner. 4. Interconnecting w

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must: • Carefully read this instruction booklet before beginning. • Follow each installation or repair step exactly as shown. • Observe all local, state, and national electric codes. • Pay close attention to all danger, warning, and caution notice

  • In A B C D E F G H I Models: 9SRA-HE | 12SRA-HE | 15SRA-HE | 18SRA-HE | 24SRA-HE Indoor unit Outdoor unit A F B D E H I G C Installation & service manual _17 OUTLINE AND DIMENSIONS 9SRA-HE 10 7/8 31 1/2 8 1/4 31 3/4 11 23 1/2 11 1/4 14 1/8 12SRA-HE 10 7/8 31 1/2 8 1/4 33 7/8 12 25 5/8 12 14 3/4 15SRA-HE 12 5/8 38 3/4 7 1/2 33 7/8 12 25 5/8 12 14 3/4 18SRA-HE 12 5/8 38 3/4 7 1/2 37 1/2 14 3

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _7 WIRING SYSTEM DIAGRAMS 3 2 1 Terminal block of indoor unit 3 2 1L1 L2 Terminal block of outdoor unit Power supply, 1 phase, 60 Hz INDOOR UNIT OUTDOOR UNIT Ground wire ACN wire ACL wire Communication wire L1 L2 1 2 3 1 2 3 OUTDOOR UNIT BU BN OR ACN ACL CMU INDOOR CONTROL BOARD DISPLAY AND RECEIVE BOARD COMPULSIVE SWITCHING TEMP SENSOR PIPE SENSOR IN FAN STEP MOTOR FUSE 3.15 A INDOOR UNIT WIRING DIAGRAM 2 2 2 5 5 9 L1 L2 1 2 3 1 2 3 OUT FAN COMPRESSOR HIGH PRESSURE SWITCH LOW PRESSURE SWITCH FUSE 3.1

  • Williamson-Thermoflo 9SRA-HE, This manual is a guide for properly installing the Williamson-Thermoflo Wall-mounted split air conditioner. Improper installation can result in unsafe and dangerous conditions that will void the factory warranty. Prior to installation, read these instructions and any instructions that are packaged with separate pieces of equipment that make up the system. Please read these instructions thoroughly and carefully before attempting installation or operation. Failure to follow these instructions may result in improper installation, operation, service, or maintenance, possibly resulting in fire, electrical shock, property damage, personal injury, or death. General: This device must be insta

  • Williamson-Thermoflo 9SRA-HE, 3 2 1 Terminal block of indoor unit 3 2 1L1 N Terminal block of outdoor unit Power supply, 1 phase, 60 Hz INDOOR UNIT OUTDOOR UNIT Installation & service manual _6 WIRING SYSTEM DIAGRAMS Ground wire ACN wire ACL wire Communication wire L1 N 1 2 3 1 2 3 OUTDOOR UNIT BU BN OR ACN ACL CMU INDOOR CONTROL BOARD DISPLAY AND RECEIVE BOARD COMPULSIVE SWITCHING TEMP SENSOR PIPE SENSOR IN FAN STEP MOTOR FUSE 3.15 A INDOOR UNIT WIRING DIAGRAM 2 2 2 5 5 9 L1 N 1 2 3 1 2 3 OUT FAN COMPRESSOR HIGH PRESSURE SWITCH LOW PRESSURE SWITCH FUSE 3.15 A BN WH B

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _14 GAS LEAK CHECK Check that no gas escapes from the connections by using a leak detector or soapy water. A and B are the liquid and suction valves of the outdoor unit. C and D are the extremities of the indoor unit flared connections. Indoor unit check points B A D Liquid and suction valves C

  • Williamson-Thermoflo 9SRA-HE, 1. Before fixing the installation plate to a wall, you must determine the position of the 2 3 / 4 in (70 mm) hole through which the conduit, piping and drain hose pass to connect the indoor unit to the outdoor unit. The piping and conduit can be con- nected from the: Rear, Right or Left side of indoor unit. 2. Determine the position of the pipe and drain hose hole using one of the figures shown, and drill the hole with an inner diameter of 70 mm (2 3 / 4 inch) so that it slants slightly downwards. 3

  • Williamson-Thermoflo 9SRA-HE, The following accessories are supplied with the air conditioner. • The quantities are indicated in parenthesi s. Installation plate (1) Remote control (1) “AAA” batteries for remote control (2) Remote control holder (1) Accessories in the Indoor Unit Case Owner’s manual (1) Installation manual (1) Service manual (1) Warranty (1) Rubber leg (4) Interconnecting wiring and conduits from the outdoor unit to the indoor unit are not provided with the air conditioner. Wall plastic sleeve (1) Accessories in the Outdoor Unit Case Installat

  • Williamson-Thermoflo 9SRA-HE, REF. NO DESCRIPTION QTY 9SRAI-HE 12SRAI-HE 15SRAI-HE 18SRAI-HE 24SRAI-HE 1 Faceplate (including display glass) 1 P00843 P00843 P00844 P00844 P00845 2 Lamp board holder 1 P00846 P00846 P00864 P00864 P00865 3 Lamp Board (3 lights) + infrared lense 1 P00847 P00847 P00848 P00848 P00849 4 Lamp board back cover 1 P00850 P00850 P00866 P00866 P00867 5 Control Box Cover 1 P00851 P00851 P00852 P00852 P00853 6 Terminal block Cover 1 P00854 P00854 P00856 P00856 P00857 7 Plastic Cover 1 P00855 P00855 N/A N/A N/A 8 Filters 2 P00858 P00858 P00859 P00859 P00860 9 Middle Base 1 P00861 P00861 P00

  • Williamson-Thermoflo 9SRA-HE, 1. The indoor unit is powered from the outdoor unit. A sufficient length of conduit and wiring shall be used from the outdoor unit to the indoor unit. 2. To access the terminal block inside the indoor unit, remove the screw on the cover plate. (See Fig. A.) 3. Connect the inter unit conductors to terminals marked 1,2,3, on the indoor unit corresponding to the same numbered terminals from the outdoor unit. (See Fig.B.) Figure B Terminal block of indoor unit Installation & service manual _8 ELECTRICAL CONNECTIO

  • Williamson-Thermoflo 9SRA-HE, Installation & service manual _10 REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN INSTALLING UNIT General Information Systems using R-410A refrigerant run at a pressure of approximately 1.6 times that of similar systems using R-22 and the energy efficiency is comparable. The R-410A refrigerant is a 50:50 mixture of R-32 and R-125. When installing equipment using R-410A refrigerant, there are a number of standards that must be met: • Ester oil is used for R-410A. • It’s important to work with absolute cleanliness. • Brazing must

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