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HTP HP-30SC Installation Manual

Evacuated tube solar collector
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Evacuated Tube
Solar Collector
INSTALLATION
MANUAL
HP-30SC
NOTICE: HTP reserves the right to make product changes or updates without notice and will not be held
liable for typographical errors in literature.
120 Braley Rd. P.O. Box 429
East Freetown, MA 02717-0429
www.htproducts.com

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  • Page 1 Solar Collector INSTALLATION MANUAL HP-30SC NOTICE: HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors in literature. 120 Braley Rd. P.O. Box 429 East Freetown, MA 02717-0429 www.htproducts.com...
  • Page 2 The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the product. DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 3 FOR THE INSTALLER For your safety, please read through this manual carefully before installation to minimize the risk of fire, property damage, and personal injury. Solar hot water system shall be properly installed in accordance with this manual before use. INSTALLATION OR SERVICE OF THESE SOLAR PANELS IS REQUIRED TO BE PERFORMED BY LICENSED PROFESSIONALS WHERE SOLAR, PLUMBING AND ELECTRICAL WORK IS REQUIRED.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ............................7 ABOUT YOUR EVACUATED TUBE SOLAR COLLECTOR ..............7 PART 1: GENERAL SAFETY INFORMATION .................... 7 A. METALLIC COMPONENTS ......................... 7 B. EVACUATED TUBES ........................... 7 C. HIGH TEMPERATURES ........................8 D. HEALTH AND SAFETY ........................8 PART 2: IMPORTANT INFORMATION .......................
  • Page 5 1. COLLECTOR ANGLE ........................16 2. COLLECTOR PLANE ........................16 3. COLLECTOR DIRECTION ......................16 4. TO EASE OVERHEATING ......................16 H. AVOID SHADE ........................... 16 I. LOCATION ............................16 J. EXPANSION TANK: MINIMIZING WATER WASTAGE ..............17 1. OPEN LOOP SYSTEMS ......................... 17 2.
  • Page 6 B. REDUCED SOLAR CONTRIBUTION ....................34 C. REGULAR WATER DUMPING ......................34 D. INSTALLED COLLECTOR DETAIL ....................35 1. ANGLED COLLECTOR ........................35 2. FLUSH COLLECTOR ........................35 PART 10 – INSTALLATION CHECKLIST ....................36 MAINTENANCE NOTES ..........................37 HTP CUSTOMER INSTALLATION RECORD FORM................ 38...

  • Page 7: Introduction

    • Valves Between Your Backup Water System and the Solar System NOTE: HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors in literature. PART 1: GENERAL SAFETY INFORMATION NOTE: OBTAIN ALL APPLICABLE PERMITS AND OBEY ALL LOCAL CODES.

  • Page 8: High Temperatures

    POSSIBLE PATH ANY BROKEN GLASS MAY TAKE. Where possible, protection should be provided to prevent broken glass from reaching ground level where somebody could walk on it. THE HOMEOWNER SHOULD BE MADE AWARE BY THE INSTALLER THE LOCATION OF THE SOLAR COLLECTOR AND THE POSSIBLE VICINITY OF BROKEN GLASS IN THE EVENT OF AN EXTREME STORM OR OBJECT FALLING ON THE COLLECTOR.

  • Page 9: Part 2: Important Information

    PART 2: IMPORTANT INFORMATION A. SCOPE OF MANUAL This manual pertains only to the installation and operation of the HTP Solar Collector. Details for the installation, operation and maintenance of the complete solar gas/electric water heating system including, but not limited to storage tank, gas/electric booster, pump, system controller, valves and other plumbing components should be provided separately by their respective manufacturers.

  • Page 10: Drain Back Systems

    The solar collector may be used for heating of spa or pool water, but levels of free chlorine must not exceed 5ppm, otherwise the copper header could corrode. NOTE: HTP DOES NOT WARRANT THE SOLAR COLLECTOR AGAINST CORROSION RELATED DAMAGE.

  • Page 11: Freeze Protection

    Evacuated tubes are not susceptible to damage in cold weather, and heat pipes are protected against damage that could result from the freezing of the water inside. NOTE: HTP DOES NOT WARRANT THE SOLAR COLLECTOR AGAINST FREEZE RELATED DAMAGE. I. COLLECTOR DIMENSIONS & WEIGHTS...

  • Page 12: Snow Load

    K. SNOW LOAD In areas prone to heavy snowfall, the solar collectors should ideally be installed at an angle of 50 greater to help promote snow sliding off the tubes. In addition, it is advisable to raise the front of the collector frame 15 –...
  • Page 13 PART A: MANIFOLD LEG (3) (SHORTER THAN PART PART B: BACK BRACE (4) (LONGER THAN PART PART C: HORIZONTAL SUPPORT BRACE (3) (SHORTER THAN PART PART D: MANIFOLD ARM (3) (LONGER THAN PART PART E: CLAMP (6) PART F: TRIANGLE PLATE (3) PART G: FEET (6) PART H:...

  • Page 14: Tube And Heat Pipe Inspection

    Do not remove and/or expose the tubes to sunlight until ready to install, otherwise the heat pipe tip will become hot enough to cause serious burns. NOTE: HTP DOES NOT WARRANT THE TUBE OR HEAT PIPES AGAINST FAILURE AS A RESULT OF DAMAGE INCURRED DURING TRANSPORT OR INSTALLATION.

  • Page 15: System Design

    Emory Paper 1’ Reducer – ½” or ¾” 24” Level 5/8” x ½” wall & 7/8” x ½” wall insulation Flashlight Silicon Caulk and Roof Tar Extension Cord ½” I.D. and ¾” I.D. Type M Copper Tubing Slip Joint Pliers Needle Nose Pliers Pipe Wrenches, 10”...

  • Page 16: Solar For Central Heating - Preventing Overheating

    F. SOLAR FOR CENTRAL HEATING – PREVENTING OVERHEATING If a system has been designed to provide a contribution to space heating, it will sometimes provide more heat in the summer than is required for hot water supply alone. In such cases, it is advisable for the home to have a hot-tub, Jacuzzi or pool, a large storage tank or underground thermal store.

  • Page 17: Expansion Tank: Minimizing Water Wastage

    Copper pipe is the most widely used piping material for solar applications. If it is decided to use synthetic piping for the plumbing, HTP strongly recommends that copper pipe is used for at least the most first 12feet of line connecting to both the inlet and outlet of the collector.

  • Page 18: Mounting Frame

    O. MOUNTING FRAME HTP solar collectors are supplied with an adjustable, extruded aluminum frame, which allows installers to change the angle of the collector to maximize efficiency. Feet are supplied to fasten the panel securely to the roof. It is important that frame attachment points and externally supplied fasteners are of suitable structural strength and corrosion resistance.

  • Page 19: Installing Clamp To Base Tube Frame

    Ensure the surface is solid and able to withstand in excess of 150kg / 330lbs of pull force that may be encountered during high winds. Consult a structural engineer if in doubt. B. INSTALLING CLAMP TO BASE TUBE FRAME 1. Secure clamps to the base tube frame using short bolts.

  • Page 20: Installing Triangle Plate Assembly

    5. Secure the bolts with nuts and tighten with ratchet. 6. Line up the clamps on the base tube frame to the manifold arms. Figure 4 – Manifold to Base Tube Detail 7. Slide in short bolts in the arms first. 8.

  • Page 21: Installing Legs To Assembly

    E. INSTALLING LEGS TO ASSEMBLY 1. Slide manifold legs onto the top bolt of the triangle plates. 2. Align the edge of the manifold leg with the corner of the top edge of the triangle base plate. The legs should be able to pivot about the bolt without interference.

  • Page 22: Installing The Supports

    3. Attach feet to manifold arms. 4. Align so foot is flush to the bottom of the manifold arms in the same direction as the feet on manifold legs. Figure 9 – Installation Detail G. INSTALLING THE SUPPORTS 1. Attach back brace across manifold legs. 2.

  • Page 23: Flush / Flat Mounting

    5. Attach horizontal supports at the midpoints of manifold legs and arms. 6. These supports can be adjusted along either support in order to create the desired angle. Figure 12 – Horizontal Support Installation H. FLUSH / FLAT MOUNTING Face feet outwards and attach to the manifold arms.

  • Page 24: Part 5: Roof/Wall Attachment Suggestions

    4. Place evacuated tube through end cap and screw into manifold. 5. Screw plastic end cap back into place. Figure 15 – End Cap Detail Do not spray water into the evacuated tube(s). When evacuated tubes are fully installed, wipe clean with liquid glass cleaner and cloth/paper towels. PART 5: ROOF/WALL ATTACHMENT SUGGESTIONS Working on the roof is extremely dangerous! Plan the installation out carefully such that a safe distance from the edge of the roof can be maintained.

  • Page 25: Flush Pitched Roof Installation

    When installing a tilt/angled collector on a low pitched roof, follow the attachment instructions above. The HTP Evacuated Tube Solar Collector’s horizontal supports easily slide along the manifold arms and legs into the proper installation angle. Minimum pitch must be no lower than 25...

  • Page 26: Flat Roof Installation

    Always consider the weight of the collector and the structural integrity of the wall. HTP requires that installations be inspected and approved by authorized building inspectors and comply with state and local codes.

  • Page 27: Header Connection

    The solar controller temperature sensor should be coated with a thin layer of thermal paste and inserted into the sensor port to the full depth. If the fit is too loose, slide a piece of copper or stainless steel plate/wire in beside the sensor. Ensure that the insulation is watertight.

  • Page 28: Glycol Freeze Protection

    In drain back systems, an additional factor must be considered along with the previous two: • Lift Each HP-30SC collector has a flow rate of about .84 gpm. When determining pumping head loss, consider the following: • Head loss pumping through panel(s).
  • Page 29 20% reduction in pressure drop. Figure 17 – Pressure Drop through HP-30SC with 40% Propylene Glycol Solution After determining gpm flow rate and total system head loss, a properly sized pump can be chosen. See recommendation from pump supplier to determine the proper pump for your job.

  • Page 30: Part 7: System Piping Diagrams

    PART 7: SYSTEM PIPING DIAGRAMS A. DRAINBACK TANK WITH BACKUP WATER HEATER Figure 18 – Drain Back Tank with Solar Water Heater* - LP-204-C *This drawing is meant to show system piping concept only. The installer is responsible for all equipment and detailing according to local codes.

  • Page 31: Closed Loop System With Electric Backup And Storage Tank

    B. CLOSED LOOP SYSTEM WITH ELECTRIC BACKUP AND BOILER Figure 19 – Closed Loop System with Electric Backup and Boiler* - LP-199-S *This drawing is meant to show system piping concept only. The installer is responsible for all equipment and detailing according to local codes.

  • Page 32: Part 8: Maintenance

    PART 8: MAINTENANCE Under normal conditions, the solar collector is maintenance free. Other system components, such as the pump and glycol (if used), may require periodic inspection and changing/maintenance. Please refer to the documentation provided by the manufacturer of these other components. NOTE: APART FROM THOSE MAINTENANCE ITEMS OUTLINED BELOW, ANY SYSTEM INSPECTION, MAINTENANCE OR REPAIR SHOULD ONLY BE COMPLETED BY AUTHORIZED PERSONS.

  • Page 33: Other Components

    2) If the storage tank or other system components are being concurrently drained, refer to their instruction manuals for details. If storage tank is not being drained, isolate piping to and from the solar collector (isolation valves should already be installed). Immediately open drain valves on both lines (or undo fittings).

  • Page 34: Hot Water

    A. NO HOT WATER If there is no hot water, it will generally be related to the gas or electric heating system, not the solar collector. The collector simply pre-heats water, with final boosting completed by the electric element or gas booster system.

  • Page 35: Installed Collector Detail

    D. INSTALLED COLLECTOR DETAIL 1. ANGLED COLLECTOR Figure 21 – Angled Collector Views 2. FLUSH COLLECTOR Figure 17 – Flush Collector Views...

  • Page 36: Part 10: Installation Checklist

    PART 10: INSTALLATION CHECKLIST The following list is a guide only. Specific items will depend on the nature of the installation. 1 COLLECTOR FACES AS CLOSE AS POSSIBLE TO DUE NORTH/SOUTH. 2 MANIFOLD IS NOT SIGNIFICANTLY SHADED THROUGHOUT THE DAY. 3 MANIFOLD IS NOT LIKELY TO BE STRUCK BY FALLING OBJECTS SUCH AS BRANCHES OR FALLING FRUIT.

  • Page 37: Maintenance Notes

    MAINTENANCE NOTES...

  • Page 38: Htp Customer Installation Record Form

    If you are not satisfied, call your HTP Sales Representative. 2. In the case that the system has any problems, please call the installer. If you are unable to make contact, or are unhappy with the response, please contact your HTP Sales Representative. Distributor/Dealer: Please insert contact details.

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