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Table of Contents
Related Manuals for Williamson-Thermoflo 9SRA-HE
Summary of Contents for Williamson-Thermoflo 9SRA-HE
- Page 1 This system uses R-410A M00036-V00...
- Page 2 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: •...
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Page 3: Table Of Contents
CONTENTS Safety considerations Accessories Installation recommendations (indoor unit) Installation recommendations (outdoor unit) Electrical installation Wiring system diagram Electrical connections for indoor and outdoor units Refrigerant line connections Refrigerant R410A: special precautions when installing unit Tightening refrigerant piping connections System evacuation Additional charge Gas leak check Checking and testing operation... -
Page 4: Safety Considerations
SAFETY CONSIDERATIONS 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. -
Page 5: Accessories
ACCESSORIES The following accessories are supplied with the air conditioner. • The quantities are indicated in parenthesi s. Accessories in the Indoor Unit Case Remote control “AAA” batteries for Installation plate (1) Remote control (1) holder (1) remote control (2) Owner’s manual (1) Installation manual (1) Service manual (1) -
Page 6: Installation Recommendations (Indoor Unit)
INSTALLATION RECOMMENDATIONS (INDOOR UNIT) 1. Before fixing the installation plate to a wall, you must determine the position of the 2 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. -
Page 7: Installation Recommendations (Outdoor Unit)
INSTALLATION RECOMMENDATIONS (OUTDOOR UNIT) Attach the outdoor unit with 4 anchor bolts and nuts (not supplied) positioned as per dimensions A, B. 24SRAO-HE 9SRAO-HE 12SRAO-HE | 15SRAO-HE 18SRAO-HE A (in) 21 3/8 24 3/8 B (in) 13 3/8 24 in minimum Air inlet 9 in minimum 12 in minimum... -
Page 8: Electrical Installation
ELECTRICAL INSTALLATION 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. -
Page 9: Wiring System Diagram 6_7
WIRING SYSTEM DIAGRAMS 9SRA-HE | 12SRA-HE | 15SRA-HE (115V - 60Hz) INDOOR UNIT DISPLAY AND RECEIVE BOARD Terminal block of indoor unit FUSE COMPULSIVE SWITCHING 3.15 A PIPE SENSOR TEMP SENSOR IN FAN STEP MOTOR INDOOR CONTROL BOARD INDOOR UNIT WIRING DIAGRAM... - Page 10 WIRING SYSTEM DIAGRAMS 18SRA-HE | 24SRA-HE (208-230V - 60Hz) INDOOR UNIT DISPLAY AND RECEIVE BOARD Terminal block of indoor unit FUSE COMPULSIVE SWITCHING 3.15 A PIPE SENSOR TEMP SENSOR IN FAN STEP MOTOR INDOOR CONTROL BOARD INDOOR UNIT WIRING DIAGRAM L1 L2 Terminal block of outdoor unit...
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Page 11: Electrical Connections For Indoor And Outdoor Units
3. Connect the power supply conductors to terminal marked L1, N or L1, L2, and the grounding wire to terminal marked 4. Connect the inter unit conductors to terminals marked , 3, 2, 1. 18SRA-HE | 24SRA-HE (208-230V - 60Hz) 9SRA-HE | 12SRA-HE | 15SRA-HE (115V - 60Hz) Conduit Conduit Conduit Conduit... -
Page 12: Refrigerant Line Connections
- 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. Compressor 3-Way valve 2-Way valve Capillary tube Models 9SRA-HE 12SRA-HE 15SRA-HE 18SRA-HE 24SRA-HE Refrigeration Tubing Connection method Flare... -
Page 13: Refrigerant R410A: Special Precautions When Installing Unit
REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN INSTALLING UNIT Caution: The compressor POE oil for R-410A units is extremely susceptible to moisture absorption and could cause compressor failure. Do not leave system open to atmosphere any longer than necessary for installation. 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. -
Page 14: Tightening Refrigerant Piping Connections
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. Flare nut size and tightening torque Class 2 (for R410A) Applicable size Diamètre (mm) x Tightening torque (Nm) -
Page 15: System Evacuation
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. -
Page 16: Additional Charge
18SRA-HE Additional refrigerant 20 g (0.7 oz) 40 g (1.41 oz) 30 g (1.06 oz) Models 9SRA-HE | 12SRA-HE | 15SRA-HE | 18SRA-HE | 24SRA-HE Limit of tubing length 49 (15) ft (m) Limit of elevation 20 (6) between the two unit... -
Page 17: Gas Leak Check
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 Liquid and suction valves Installation &... -
Page 18: Checking And Testing Operation
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. -
Page 19: Technical Specifications
TECHNICAL SPECIFICATIONS SPECIFICATIONS 15SRA-HE 18SRA-HE 24SRA-HE 9SRA-HE 12SRA-HE MODELS Performance ratings Nominal capacity 12 000 15 000 18 000 24 000 BTU/h Cooling 9 000 S.E.E.R BTU/hW Cooling 13.5 13.5 Refrigerant type R-410A R-410A R-410A R-410A R-410A Dehumidifying capacity Pt./H... -
Page 20: Outline And Dimensions
OUTLINE AND DIMENSIONS Models: 9SRA-HE | 12SRA-HE | 15SRA-HE | 18SRA-HE | 24SRA-HE Indoor unit Outdoor unit 9SRA-HE 12SRA-HE 15SRA-HE 18SRA-HE 24SRA-HE 10 7/8 10 7/8 12 5/8 12 5/8 31 1/2 31 1/2 38 3/4 38 3/4 43 1/2... -
Page 21: Parts Diagram (Indoor Unit)
PARTS DIAGRAM (INDOOR UNIT) INSIDE UNIT 9SRAI-HE 12SRAI-HE 15SRAI-HE 18SRAI-HE 24SRAI-HE Installation & service manual _18... -
Page 22: Parts List (Indoor Unit)
PARTS LIST (INSIDE UNIT) Inside unit - spare parts REF. 9SRAI-HE 12SRAI-HE 15SRAI-HE 18SRAI-HE 24SRAI-HE DESCRIPTION Faceplate (including display glass) P00843 P00843 P00844 P00844 P00845 Lamp board holder P00846 P00846 P00864 P00864 P00865 Lamp Board (3 lights) + infrared lense P00847 P00847 P00848... -
Page 23: Parts Diagram (Outdoor Unit)
PARTS DIAGRAM (OUTDOOR UNIT) OUTSIDE UNIT 9SRAO-HE 12SRAO-HE 15SRAO-HE 18SRAO-HE 24SRAO-HE Installation & service manual _20... -
Page 24: Parts List (Outdoor Unit)
PARTS LIST (OUTSIDE UNIT) Outside unit - spare parts REF. 9SRAO-HE 12SRAO-HE 15SRAO-HE 18SRAO-HE 24SRAO-HE DESCRIPTION Cabinet | Front L | Painted (including fan cover) P00730 P00731 P00731 P00732 P00733 Control box cover P00734 P00734 P00734 P00734 P00734 Propeller fan P00738 P00738 P00738... - Page 25 NOTE Installation & service manual...
- Page 26 8201 W. Calumet Road, Milwaukee, WI 53223 USA www.williamson-thermoflo.com...
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