SmartPool SunHeater S421 User Manual

INSTALLATION &
OPERATION MANUAL
How Solar Pool Heating Works Why Solar Heat Works Best
• Using your pool pump, water
is automatically pumped
through the solar collectors.
• The water is then heated by the
sun as it moves through the
collectors.
• The heated water is returned
back to the pool, through
your return lines.
• You enjoy your own
heated pool with no
fuel costs.
• Water is heated as it moves through the many
tubes in the solar collectors.
• Tube and web design traps heat and catches
light as the sun moves across the sky.
• Tough polypropylene material won’t rust, corrode
or scale. Plus, the collector is reversible.
Collector Cross Section
1
PLEASE READ THIS MANUAL CAREFULLY. YOUR ENJOYMENT OF YOUR SOLAR HEATED POOL
AND YOUR WARRANTY ARE AFFECTED BY HOW YOUR SOLAR HEATING SYSTEM IS INSTALLED
CAUTION: a) Solar collectors are often installed on the roofs of buildings. Unless you are very familiar with working
on roofs and have the proper ladders and safety equipment for such work, you should hire someone with
the necessary experience to do the installation. Failure to observe safe practices on a roof or other elevated
structure may result in falling, leading to serious injury to you.
b) When installing collectors on the ground, do not build a rack support that could allow children access
into the pool.
Product Number S421/S411
for Aboveground Pools

SmartPool SunHeater S421 Specifications

General

Model	S421
Type	Solar Pool Heater
Material	Polypropylene
Installation	Roof or ground mount
Panel Area	80 square feet
Hose Connections	1.5 inches

Summary

How Solar Pool Heating Works

Water Circulation and Heating

Water is automatically pumped through solar collectors, heated by the sun, and returned to the pool.

Fuel-Free Pool Heating

Enjoy a heated pool using solar energy without incurring fuel costs.

Why Solar Heat Works Best

Efficient Heat Capture Design

Tube and web design traps heat and catches sunlight as it moves across the sky.

Durable Material Construction

Made from tough polypropylene that won't rust or corrode, and is reversible.

Solar Heating Performance and Requirements

Expected Temperature Increase

A properly sized system can raise pool temperatures by up to 10°F (6°C).

Pump Requirements

A standard pool pump is generally sufficient for installations up to 30 feet away.

Collector Placement

Collectors need at least 6 hours of full sun daily and should face south if mounted at an angle.

Tools and Additional Parts

Lists necessary tools and optional parts for roof, ground, or rack installations.

Product Kit Components

Solar Collectors

The primary heating components made of durable, high-performance polypropylene.

System Kit Contents

Details the specific parts included in the S421/S411 installation kit.

System Layout

Single Box Configuration

Illustrates the plumbing and connection layout for a single solar collector box.

Two Box Configuration

Shows the plumbing and connection layout for a system with two solar collector boxes.

Installation Steps

Collector Preparation and Connection

Steps for preparing collectors, joining headers, and sealing threaded ends.

System Hookup and Initial Fill

Connecting hoses from the filter and pool return, and preparing for start-up.

Start-Up Procedure

Turning on the pump, checking for leaks, and purging air from the system.

Operation and Maintenance

Normal Operation

Guidance on checking collector temperature and circulating water for optimal heating.

Winterization Procedure

Essential steps to drain the system completely to prevent freeze damage.

Collector Leak Repair

Instructions for performing an on-site repair of a solar collector leak.