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Summary of Contents for hotspot energy DC4812VRF
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Page 1: Installation Guide
DC4812VRF Installation Guide Version 1.4 Copyright 2013 HotSpot Energy... - Page 2 Is EPA technician certification required to service R410A systems? No, at this time EPA technician certification is not required in order to service R-410a systems. Source: http://www.epa.gov/ozone/title6/phaseout/technicians_contractors_faq.html HotSpot recommends that only a licensed air conditioning contractor be allowed to install or service this unit. Copyright 2013 HotSpot Energy...
- Page 3 Capacitors MUST BE DISCHARGED before servicing any electrical components of this unit! Refer any installation or service to a qualified professional. HVAC professionals can contact HotSpot for downloadable service manual. Copyright 2013 HotSpot Energy...
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Page 4: Table Of Contents
DC4812VRF DC Air Conditioner Installation Guide Table of Contents Cover Page Notice To Owner/Installer Capacitor Warning Table of Contents Safety Precautions Selecting Installation Location Indoor Unit Installation Connecting Power Cables Outdoor Unit Installation Recharging Empty Unit Outdoor Electrical Battery Plant... -
Page 5: Safety Precautions
This unit uses high voltage DC power. There are multiple capacitors within the unit that may contain dangerous power, even after the power supply has been disconnected. Refer any service to a qualified professional. See the DC4812VRF SERVICE MANUAL for service information. Capacitors MUST BE DISCHARGED before servicing any electrical components of this system! Batteries: Make sure to follow the NEC and instructions provided by the battery manufacturer when wiring, connecting, and grounding the battery plant. - Page 6 9.52 mm Parts you must 1/2 “ purchase. Control Refer to page 11 for Parts you must Cable control cable details purchase. Remote controller Self-tapping Screw B ST2.9x10 Optional Parts Remote controller holder Optional Parts Figure 2 Copyright 2013 HotSpot Energy...
- Page 7 3. Drill the piping hole at either the right or the left side. The hole should be slightly slanted to the outdoor side for condensate water drainage. See figure 5 4 Always use conduit when drilling through metal grid, metal plate or the like. Figure 5 Copyright 2013 HotSpot Energy...
- Page 8 If drain hose is located at the upper side it can cause drain tray to overflow inside the unit. Never intercross or wind the power wire with any other wiring. Run the drain hose sloped downward to drain out the condensed water smoothly. Figure 8 Copyright 2013 HotSpot Energy...
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Page 9: Indoor Unit Installation
Remove it after finishing the piping. See figure 10 4. Press the lower left and right side of the unit against the installation plate until hooks engages with their slots. Figure 9 Figure 10 Copyright 2013 HotSpot Energy... -
Page 10: Connecting Power Cables
(measured in volt-amperes for AC and watts for DC)". We calculate based on the maximum current that the cable is to carry. ELV System Voltage: The nominal system voltage is 48 volts for the HotSpot DC4812VRF DC air conditioner. The nominal system voltage for the PV/charge controller configuration will depend on the string sizing. - Page 11 AWG Wire Gauge Sizing Guide For DC4812VRF Air Conditioner Connect 48v DC power from batteries to terminals as shown below. “E” refers to Earth Ground. DC4812VRF Air Conditioner Minimum Wire Gauge Sizing Chart for Connecting Outdoor Power Distance 10 ft. 20 ft.
- Page 12 The connection between the bracket and wall, and the bracket and the air conditioner should be firm, stable and reliable. Be sure there are no obstacles which can block the flow of air. Figure 13 Copyright 2013 HotSpot Energy...
- Page 13 6.35mm or 1/4” 1500(153kgf.cm) 1600(163kgf.cm) with a torque wrench as shown. Be careful - or 1/2” excessive torque can break or damage the nut. 12.7mm 3500(357kgf.cm 3600(367kgf.cm) Use proper torque to ensure a good seal. Do not over-tighten. Copyright 2013 HotSpot Energy...
- Page 14 Connective pipe Additional amount of refrigerant to be charged method length Less than 7.5m Use vacuum pump ------------- Use vacuum pump Liquid side:6.35mm R410A: Liquid side:|9.52mm: More than 7.5m (Pipe length-7.5)x20g/m R410A: (Pipe length-7.5)x40g/m Figure 19 Copyright 2013 HotSpot Energy...
- Page 15 7. Remove the charge hose from the Low pressure charge hose. 8. Fully open the packed valve stems B and A. 9. Securely tighten the cap of the packed valve. Copyright 2013 HotSpot Energy...
- Page 16 Perform test operation after completing gas leak check at the flare nut connections, and perform electrical safety check. Check that all tubing and wiring have been properly connected. Check that the gas and liquid side service valves are fully open. Copyright 2013 HotSpot Energy...
- Page 17 Recharging the DC4812VRF All DC4812VRF units are shipped from the factory fully charged for a lineset length up to 25 ft. However, if the unit was shipped via air freight, due to air safety regulations the R410a will have been removed and replaced with a low pressure nitrogen charge.
- Page 18 Purge the manifold with gas, reset the digital scale and weigh in 1600g of Freon. If filling slows down, turn unit on and set to high cool to complete the charging. Disconnect the blue hose and replace the service caps Copyright 2013 HotSpot Energy...
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Page 19: Outdoor Electrical
DC4812VRF Typical System Topology Outdoor Electrical Connections Warning: Charge controllers have a maximum Voltage Charge Controller: HotSpot recommends and may have provided a charge controller from Morningstar: Tristar TS-45, Tristar TS-MPPT-45 or TS-MPPT-60. Information on using, installing and/or configuring these units is available for download from www.morningstarcorp.com... - Page 20 • All power production from PV array charge controllers ceases when the breakers trip and remove their connection to the batteries. Copyright 2013 HotSpot Energy...
- Page 21 •Use caution when using a metal tool near the batteries to prevent shorts, sparks, and possible explosions. •Keep all battery terminals clean and corrosion free. •Do not attempt to charge a frozen battery. •Always install a means of disconnect on the outside of the enclosure. Copyright 2013 HotSpot Energy...
- Page 22 For most battery interconnect wiring using 6 or 8 batteries, no cables should be longer than 48” and we would recommend 8 AWG wire. For 12 or 16 batteries interconnected we recommend no cables longer that 72” and use 6 AWG wire. Copyright 2013 HotSpot Energy...
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Page 23: Solar Installation
Do not attempt to disassemble the module, and do not remove any attached nameplates or components. Do not apply paint or adhesive to module top surface. Do not use mirrors or other magnifiers to artificially concentrate sunlight on the module. Copyright 2013 HotSpot Energy... - Page 24 The hole in the back of the module frame is used to drain the water, do not block it. Copyright 2013 HotSpot Energy...
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Page 25: Charge Controller
Charge Controller You may have been provided a Morningstar charge controller as part of your DC4812VRF order. If so, the following instructions should be followed. If you have a different charge controller please use the manufacturers instructions for connecting and using it. - Page 26 •Turn the solar disconnect on. If the solar array is in full sunlight, the TriStar MPPT will begin charging. If an optional TriStar Meter is installed, charging current will be reported along with charging state. Copyright 2013 HotSpot Energy...
- Page 27 Detailed Installation Instructions: If you ordered your mounting hardware from somewhere other than HotSpot Energy, consult with your supplier for detailed instructions If HotSpot Energy provided the hardware, it will be from DPW. Please download and follow the appropriate detailed instructions.
- Page 28 WARNING: Incorrect configuration or incorrect installation may result in personal injury, death, or damage to the generator and/or other system components. CAUTION: Configure the Relay Driver first before wiring the generator control Copyright 2013 HotSpot Energy...
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