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NRG Systems 11708 Instructions Manual

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All-Weather PVH Kit
NRG SRA System | Kits #11708, 11709, 11710
Authors:
Technical Services

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Summary of Contents for NRG Systems 11708

  • Page 1 All-Weather PVH Kit NRG SRA System | Kits #11708, 11709, 11710 Authors: Technical Services...

  • Page 2: Table Of Contents

    NRG Instructions SRA System | All-Weather PVH Kit TABLE OF CONTENTS INTRODUCTION ........................4 MATERIALS & TOOLS ......................5 In the Kits ........................5 Required Tools ......................5 Recommended Additional Documentation ..............5 Precautions ........................6 SECTION 1: ASSEMBLING THE ALL-WEATHER SYSTEM TOWER ..........6 1.1 Construct and Erect the 2.2m Tower ................
  • Page 3 6.2 Start the PLC Program.................... 28 6.3 Understanding the NRG Default Control Algorithm (PLC) ........29 6.4 How to Configure the Controller for Kit 11708 ............29 6.5 How to Configure the Controller for Kits 11709 and 11710 ........30 6.6 Advanced User Settings –...

  • Page 4: Introduction

    PLC which switches the fan and heater on and off. The system status is monitored by our SymphoniePRO data logger. NRG Systems has created three PVH Kit options, depending on the climate of your site. Make sure that you have the proper number of panels and batteries for your intended application.

  • Page 5: Materials & Tools

    NRG Instructions SRA System | All-Weather PVH Kit MATERIALS & TOOLS In the Kits  NRG SRA Tower Assembly, 2.2m (NRG #9118)  Hukseflux VU01 Pyranometer Ventilator  1 to 3 PV panel(s), 60W each  Panel frame, angle-adjustable  1 to 3 Deep cycle batteries (108 Amp hours each), battery boxes ...

  • Page 6: Precautions

    NRG Instructions SRA System | All-Weather PVH Kit Precautions Assembling the SRA’s All-Weather PVH Kit requires working around electrical systems and batteries. Please use caution when working on electrified systems. De-energize the system by disconnecting PV panels and batteries before servicing the system in any way. The SRA’s All-Weather PVH Kit, once assembled, is large and heavy.

  • Page 7: Section 2: Assembling The Pv Panels & Brackets

    NRG Instructions SRA System | All-Weather PVH Kit SECTION 2: ASSEMBLING THE PV PANELS & BRACKETS 2.1 Open and unpack all items. Your All-Weather PVH kit comes packaged in several boxes. Verify that all contents are present and undamaged. 2.2 Construct the PV Frame 2.2.1 Attach the longest frame pieces (extruded aluminum, 65”...
  • Page 8 NRG Instructions SRA System | All-Weather PVH Kit Attach aluminum frame pieces to the panel frames through the slide nuts. Push the bolt head up against the panel frame to create a gap between washer and slide nut (Figure 2-3). Make sure that the washer remains between the extruded aluminum and panel (Figure 2-4).
  • Page 9 NRG Instructions SRA System | All-Weather PVH Kit Figure 2-5: Assembled hinges on shorter aluminum rails. Remove slide nuts from the 1/4-20x1.25 bolts on the V-block, then add Loctite to the threads and reattach. Slide the V-block assembly onto the 12” rail in the channel opposite of the hinge (Figure 2-6). Center the block onto the rail and tighten bolts to secure.
  • Page 10 NRG Instructions SRA System | All-Weather PVH Kit 2.2.4 Attach frame crosspiece and top tower mount to the main assembly. Thread 1/4-20x.375 bolts (#11697) through small corner brackets and into slide nuts (Figure 2-7). Figure 2-7: Corner brackets for use with aluminum rails; slide nuts and bolts are attached. Slide corner brackets onto the ends of the 25”...
  • Page 11 NRG Instructions SRA System | All-Weather PVH Kit Figures 2-9 & 2-10: Tighten aluminum crosspieces into place with appropriate spacing. 2.2.5 Mount the PV panel assembly to the tower. Loosen the nuts on the 3.5” U-bolt to allow enough space to fit around the tower tube. Using two people and the 6ft stepladder, lift the assembly up and slide it over the top of the tower.
  • Page 12 NRG Instructions SRA System | All-Weather PVH Kit 2.2.6 Attach angle adjustment rails to tower and PV assembly. The angle adjustment tower mount comes pre-assembled (Figure 2-12). First, remove the slide nuts and add Loctite, then loosely reattach. Figure 2-12: Out-of-box assembly of lower tower/angle adjuster mount. To mount around the tower, first remove the components from one side of the threaded rods (Figure 2- 13).
  • Page 13 NRG Instructions SRA System | All-Weather PVH Kit Figure 2-14: Inner components of Figure 12 assembled onto tower. Complete removal of the outer components is not necessary. Mount the 48” angle adjustment rails to the outer brackets of the assembly through the slide nuts (Figure 2-15).
  • Page 14 NRG Instructions SRA System | All-Weather PVH Kit 2.2.7 Attach angle adjustment rails to PV frame Remove the semicircular end pieces from the assembled hinge (Figure 2-16), then remove the slide nuts from each semicircular piece. Add Loctite to the threads of all three bolts in each hinge. Figure 2-16: Semicircular end piece removed and attached to PV frame.

  • Page 15: Attach Ventilator Control System (Shelter Box) To Tower

    NRG Instructions SRA System | All-Weather PVH Kit 2.3 Attach Ventilator Control System (Shelter Box) to Tower. Thread the provided band clamps through the outer slots of the brackets on the back of the shelter box. Wrap the band clamps around the tower and secure with a 5/16” hex nut driver. An electric drill or impactor with a 5/16”...

  • Page 16: Mount 110S Temperature Sensor

    NRG Instructions SRA System | All-Weather PVH Kit 2.4 Mount 110S Temperature Sensor Using the supplied band clamps, secure the 110S Temperature sensor to the tower directly above the Shelter Box. Figure 2-20: NRG 110S Temperature sensor attached to the tubular tower with band clamps. 2.5 Chain the Deep-Cycle Batteries Together Place the battery (ies) in the black housing box(es).

  • Page 17: Section 3: Installation Of The Vu01 To The Sra Tower

    NRG Instructions SRA System | All-Weather PVH Kit SECTION 3: INSTALLATION OF THE VU01 TO THE SRA TOWER 3.1 Install the SR20 Pyranometer into the VU01 ventilator unit See section 5.2 and 5.3 of the Hukseflux VU01 manual for detailed instructions on how to install the SR20 into the VU01 ventilator unit.
  • Page 18 NRG Instructions SRA System | All-Weather PVH Kit SRA_All-Weather_PVH_Kit_Instructions support@nrgsystems.com | Page 18 Rev. 5.0 18 April 2018...

  • Page 19: Connecting The Vu01 & Pyranometer To The Sra Tower & Symphoniepro

    NRG Instructions SRA System | All-Weather PVH Kit 3.2 Connecting the VU01 & Pyranometer to the SRA Tower & SymphoniePRO 3.2.1 Attach the ventilator to the SRA Tower top plate Mount the ventilator and pyranometer to the top plate of the NRG SRA tower using the appropriate holes.

  • Page 20: Section 4: Wiring The All-Weather System

    NRG Instructions SRA System | All-Weather PVH Kit SECTION 4: WIRING THE ALL-WEATHER SYSTEM 4.1 Wiring the Ventilator to the Control System The VU01 is supplied with a multi-conductor cable which plugs into the ventilator. At the other end, the bare wires connect to the All-Weather Control System according to Figure 4-1 and Table 4-1 below.
  • Page 21 NRG Instructions SRA System | All-Weather PVH Kit TABLE 4-1: VU01 WIRE CONNECTIONS VU01 Cable Wire VU01 Signal All-Weather Control System Connection Brown fan [+] TECO PLC Q3 Yellow fan [-]; fan status signal [-] Load [-] Blue fan status signal [+] Crimp to NRG 4C Cable Red Wire heater 1 [+] TECO PLC Q1...

  • Page 22: Wiring The Nrg 110S Temperature Sensor To The Control System

    NRG Instructions SRA System | All-Weather PVH Kit 4.2 Wiring the NRG 110S Temperature Sensor to the Control System The All-Weather Control Algorithm relies on ambient temperature to operate the heaters. The NRG 110S Temperature sensor connects to the TECO PLC A1 analog input (Figure 4-2, Table 4-2). Red|Black|Clear NRG 110S Figure 4-2...

  • Page 23: Wiring Status Signals From The Control System To The Data Logger

    NRG Instructions SRA System | All-Weather PVH Kit 4.3 Wiring Status Signals from the Control System to the Data Logger Using the supplied NRG 4C cable, the heater, fan, and battery status signals are fed to the Data Logger so they appear in the data stream. Section 5 describes how to configure the logger channels. Blue Heater/Battery and Fan Power from VU01 Clear|Black|Red|Green...

  • Page 24: Wiring The Batteries To The Control System

    NRG Instructions SRA System | All-Weather PVH Kit 4.4 Wiring the Batteries to the Control System The All-Weather packages use 1-3 12V, deep-cycle batteries. Section 2.5 explained how to chain the batteries together and connect one end of the 10 AWG 2C cable. Connect the other end of the 10 AWG 2C cable to the locations specified in Figure 4-4 and Table 4-4 below.

  • Page 25: Wiring The Pv Panels To The Control System

    NRG Instructions SRA System | All-Weather PVH Kit 4.5 Wiring the PV Panels to the Control System Connect the PV panel(s) to the system after everything else has been wired as shown in Sections 4.1-4.4. As shown in Figure 4-5 and Table 4-5, attach the wires from the PV panels to the solar terminal block. Figure 4-5 TABLE 4-5: PV PANEL CONNECTIONS PV PANEL...

  • Page 26: Section 5: Logger Configuration For Status Signals

    NRG Instructions SRA System | All-Weather PVH Kit SECTION 5: LOGGER CONFIGURATION FOR STATUS SIGNALS 5.1 Heater Status The heater status signal must be programmed into channels 20-26 with P-SCM #9135 (included with the kit). Configure the logger channel as follows: When the voltage is at 12V the heater is on, and when the voltage is at 0 V, the heater is off.

  • Page 27: Battery Bank Voltage Monitoring

    NRG Instructions SRA System | All-Weather PVH Kit 5.3 Battery Bank Voltage Monitoring The heater status signal must be programmed into channels 20-26 and requires P-SCM #9135 (included with the kit). Configure the logger channel as follows: The battery voltage will fluctuate above 12V during the solar charging phase. When the battery dips below 12V, the VU01 power is affected.

  • Page 28: Section 6: Configuring The Plc

    NRG Instructions SRA System | All-Weather PVH Kit SECTION 6: CONFIGURING THE PLC PLC must be properly configured to ensure function of the All-Weather PVH System. 6.1 Set the PLC Date and Time The PLC will need the date and time set in the RTC Set menu (the unit defaults to this menu when first powered on).

  • Page 29: Understanding The Nrg Default Control Algorithm (Plc)

    Heater operation times and temperatures are user-adjustable, if desired. Ventilator operation times are user-adjustable up to 24-hours (continuous operation). For kits 11709 and 11710, the system will require the heater to be connected. For kit 11708, the user should disconnect the heater leads to ensure adequate power for the ventilator.

  • Page 30: How To Configure The Controller For Kits 11709 And 11710

    Note: The PLC needs to be in RUN mode in order to adjust these settings. 6.6.1 Heater switch on time Press ESC. You should see the PLC home screen “NRG Systems”, press the up arrow once to enter the heater switch time menu.
  • Page 31 SEL. Use the up/down arrows to adjust the value for that setting.  Press OK to save your selection. 6.6.2 Heater switch off time Press ESC. You should see the PLC home screen “NRG Systems”, press the up arrow once to enter the heater switch time menu.  Press SEL.
  • Page 32 6.6.4 Temperature Threshold for Switching off the Heater Press ESC. You should see the PLC home screen “NRG Systems”, press the up arrow three times to enter the Temperature Threshold menu. The threshold values are in the units of Volts. Use the table found in the section above to determine the voltage for the desired switch-off temperature.
  • Page 33  Press OK to save your selection. 6.6.5 Ventilator (Continuous Operation or Off at Night) Press ESC. You should see the PLC home screen “NRG Systems”, press the up arrow four times to enter the ventilator menu.  Press SEL.

This manual is also suitable for:

1170911710

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