Archived Installation Center
PCS1 • PCS2 • PCS3 SolarAttic® Solar Pool Heating Systems
Need installation instructions for an older SolarAttic system? This page organizes the most important installation manuals, plumbing diagrams, wiring guides, controller documents, and system package references for archived models.
If you’re reinstalling after a roof project, troubleshooting flow issues, or confirming wiring/controller setup, use the sections below to quickly find the correct documentation for your model.
Looking for your model?
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PCS1 Installation Resources
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PCS2 Installation Resources
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PCS3 Installation Resources
Important: Archived systems may have multiple controller and valve configurations depending on the package originally purchased. If you’re unsure which package you have, start with “Identify Your System” below.
Identify Your System (Fast)
Before you open a manual, confirm these 4 things (it saves hours):
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Model: PCS1, PCS2, or PCS3 (check paperwork, labels, or prior owner docs).
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Control type: Manual vs Automatic controller (GL235 or related variants).
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Pool equipment pad layout: Where the 3-way valve/bypass ties into the return line.
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Attic routing: Pipe entry/exit points and whether flex PVC or rigid was used.
Installation Overview (What the System Does)
SolarAttic systems heat pool water by moving it through a heat exchanger system that captures solar energy inside the attic space. Correct installation depends on:
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Proper plumbing layout (bypass/3-way valve, correct flow direction)
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Correct controller wiring (for automatic systems)
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Clean attic piping route (secure, insulated where needed, leak-free)
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Proper startup balancing (flow + valve position + controller settings)
Pre-Install Checklist (Do This First)
Safety & access
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Verify safe attic access, lighting, and safe walking surface.
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Confirm roof penetrations are sealed and protected.
Plumbing
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Confirm pipe size and material compatibility.
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Plan bypass valve location for serviceability.
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Confirm unions and service disconnect points.
Electrical (automatic systems)
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Confirm voltage and timer/pump wiring plan.
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Identify controller type and sensor locations.
Recommended documentation to review first
Core Installation Topics (Applies to PCS1 / PCS2 / PCS3)
Startup & Commissioning (what to verify)
After install, verify:
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No leaks at all unions and attic joints
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Correct valve position for “solar on” vs “solar bypass”
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Confirm flow feels normal at returns (not restricted)
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Controller triggers correctly (automatic systems)
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Water temperature rises during appropriate solar window
5) Winterization / seasonal shutdown
If your climate freezes, proper shutdown protects pipes and components.
Installation Help: Still Not Sure Which Steps Apply?
If you’re stuck, we can point you to the exact document for your setup. Please have:
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Model (PCS1 / PCS2 / PCS3)
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Manual vs automatic control
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Photos of your equipment pad plumbing + valve
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Controller model (if installed)