SmartPool S120U User Manual

SmartPool S120U

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www.smartpool.com

®

INSTALLATION AND OPERATION MANUAL

Models S120U & S240U

Read all instructions before assembling or using the SunHeater system.

Retain this manual for future use.

Table of Contents

Questions and Answers:

E
erinponceJul 26, 2025
How to troubleshoot a SmartPool Swimming Pool Heater that is not heating the pool?
- W
  williamalvarezJul 26, 2025
  If your SmartPool Swimming Pool Heater isn't heating the pool, first ensure water flows through the system by checking the flow at the pool return. Note recent weather conditions, as cloudy or rainy weather can affect heating. Using a pool cover at night helps reduce heat loss. Also, verify that your pool size doesn't require additional collectors according to our order guide.
B
Bruce ThomasAug 9, 2025
What to do if bubbles keep appearing from the pool water inlet during SmartPool Swimming Pool Heater operation?
- D
  Daniel MillerAug 9, 2025
  If you notice bubbles appearing from the pool water inlet while your SmartPool Swimming Pool Heater is running, check all connections for leaks. Also, check the flow rate and inspect the tubing for any leaks or clogs.

SmartPool S120U Specifications

General

Brand	SmartPool
Model	S120U
Category	Swimming Pool Heater
Language	English

Summary

Important Safety Information

General Safety Precautions

Essential safety guidelines for installation and operation to prevent damage and ensure user safety.

Sizing Guides

Pool Size Recommendations

S140U Installation Guide

S240U & Multi-System Installation

Step-by-Step Installation Procedure

Instructions for installing S240U or multiple collectors for enhanced pool heating.

Roof, Rack, and Fence Installation

Mounting Setup and Procedures

Winterization and Collector Repair

Drainage and Freeze Protection

Troubleshooting Common Issues

Problem Resolution Guide

Common problems with SunHeater systems and their possible solutions for effective operation.

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