Grundfos PV-ezRack Post Mount 6-A Installation Manual

The Grundfos PV-ezRack Post Mount 6-A is a solar mounting system designed for easy installation of solar panels on posts or poles. It features a modular, adjustable design suitable for various panel sizes and orientations, corrosion-resistant materials, and integrated cable management. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Maintenance 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Adjustable mounting rails, Post/Pole clamps, Panel clamps, Cable management clips, Mounting hardware kit.

Feature	Description
Adjustable Rails	For flexible panel positioning and spacing
Post/Pole Clamps	Secure attachment to posts (2-6 inch diameter)
Panel Clamps	Hold solar panels firmly in place
Cable Management	Integrated clips for neat wiring
Corrosion Resistance	Anodized aluminum and stainless steel hardware
Modular Design	Expandable for multiple panels
Wind/Snow Load Rated	Designed for specific environmental conditions
Tool-Free Adjustments	Some components allow hand-tightening
Grounding Points	Integrated for electrical safety
Universal Compatibility	Fits most standard solar panel frames

Installation

Unpack and inspect all components. Ensure you have the correct tools.

Select Post Location: Choose a stable, load-bearing post or pole.
Attach Clamps: Secure post clamps to the post at desired height.
Mount Rails: Attach adjustable rails to the clamps using provided bolts.
Install Panels: Place solar panels on rails and secure with panel clamps.
Grounding: Connect grounding wire to integrated grounding points.

WARNING! Installation at height requires fall protection. Ensure post is structurally sound. Use appropriate personal protective equipment (PPE).

First-Time Setup

After mechanical installation, proceed with alignment and electrical connections.

Panel Alignment: Adjust rail angles for optimal sun exposure (tilt, azimuth).
Secure All Fasteners: Torque bolts to specifications in manual.
Route Cables: Use cable management clips to secure wiring.
Electrical Connection: Connect panel outputs to inverter/combiner box following local electrical codes.
Final Inspection: Check all connections, clamps, and grounding.

CAUTION! Do not perform electrical work unless qualified. De-energize system during connection.

Specifications

Model: PV-ezRack Post Mount 6-A.
Material: Anodized Aluminum 6005-T5, Stainless Steel (A2/A4).
Post Diameter Range: 2 to 6 inches (50mm to 150mm).
Max Panels per Mount: 6 standard panels (configurable).
Load Capacity: Wind load up to 140 mph, Snow load up to 40 psf (check local codes).
Adjustability: Tilt: 0-45 degrees, Azimuth: 0-360 degrees.
Weight Capacity: Up to 75 lbs per panel.
Operating Temp: -40°F to 140°F (-40°C to 60°C).
Warranty: 10 years on materials and workmanship.

Controls and Settings

System is primarily mechanical; adjustments are made manually.

Adjustment Points: Rail length, Tilt angle, Azimuth rotation, Clamp tightness.

Alignment: Use inclinometer for tilt. Use compass for azimuth. Fastening: Torque wrenches required for specific bolts (values provided in hardware guide). Grounding: Ensure low-resistance connection to earth ground per NEC.

Connecting Devices

This rack connects solar panels to an electrical system.

Ensure all panels are securely clamped and aligned.
Run PV output cables through management clips toward inverter.
Make series/parallel connections as per system design in a weatherproof junction box.
Connect to inverter input following manufacturer instructions.
Connect grounding wire from rack to system ground.

Tip: Label all cables for easy identification during maintenance or troubleshooting.

Maintenance

Regular inspection ensures longevity and performance.

Visual Inspection: Quarterly check for loose bolts, corrosion, or physical damage.
Torque Check: Annually, verify bolt tightness with calibrated torque wrench.
Panel Cleaning: Clean panel surfaces as needed to maintain efficiency.
Inspect Cables: Check for wear, UV damage, or rodent activity.
Check Grounding: Ensure grounding connection remains secure and corrosion-free.

WARNING! De-energize the electrical system before any maintenance involving cables or connections.

Safety Features

Integrated Grounding: Provides path for fault current. Robust Clamping: Prevents panel displacement in high winds. Corrosion-Resistant Materials: For long-term outdoor durability.

Care & Cleaning

Clean aluminum rails with mild soap and water. Do not use abrasive cleaners.

CAUTION! Do not walk on panels. Clean panels according to panel manufacturer's instructions only.

Regulatory Information

Designed to meet International Building Code (IBC) and ASCE 7 wind/snow load requirements. Complies with NEC Article 690 for solar photovoltaic systems. UL 2703 listed for mounting systems. For support, visit www.grundfos.com or contact your local Grundfos representative.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Rack is loose or wobbly	Loose clamps or bolts	Retorque all bolts to specified values. Ensure post is stable.
Panel misalignment	Rail adjustment slipped	Re-adjust tilt/azimuth and secure locking mechanisms.
Corrosion on hardware	Environmental exposure	Replace affected bolts/clamps with stainless steel parts.
Poor system performance	Shading or soiling	Check for obstructions and clean panels. Verify electrical connections.
Grounding fault alarm	Poor ground connection	Inspect and secure all grounding lugs and wires.

Reset: N/A - Mechanical system.

Service: Contact certified installer or Grundfos support.