Lazenta IntelliChlor Transformer for Pentair EasyTouch/IntelliTouch — Pre-2011 Replacement, Selectable 115/230V, Dual 22V & 39V

The Lazenta 520722 IntelliChlor transformer delivers the specific low-voltage power needed to run Pentair EasyTouch and IntelliTouch systems equipped with IntelliChlor salt chlorinators made before the 2011 hardware update.

This replacement transformer converts standard mains voltage to the dual low-voltage outputs required by older IntelliChlor-equipped Pentair automation systems, providing reliable, insulated power for the salt chlorinator and associated control electronics. It is designed as a retrofit option for pools and spas that still use the earlier Pentair transformer form factor and electrical specification; confirm your original part number before purchasing to ensure fit and function.

How do I know this transformer will fit my Pentair control setup?

Verify the existing transformer's part number before ordering: Lazenta 520722 is intended as a replacement for the pre-2011 IntelliChlor transformer and is not compatible with part 521441. The unit supports both 115V and 230V input and provides two low-voltage outputs used by the system.

• Replacement part number: 520722 — match this to your current transformer.
• Input voltage: selectable 115V or 230V for global installations.
• Output voltages: dual outputs of 22V and 39V to power control boards and chlorinator.
• Not compatible with newer 521441 hardware or post-2011 revisions.

What does this transformer power in the pool automation system?

The 520722 supplies conditioned low-voltage power that keeps the IntelliChlor salt chlorinator and the EasyTouch/IntelliTouch control modules operating together. A stable supply prevents voltage-related errors and supports coordinated operation of pumps, heaters, and sanitation processes.

• Powers the IntelliChlor salt chlorine generator control electronics.
• Provides voltage to EasyTouch/IntelliTouch automation control boards.
• Supports synchronized control of pumps, heaters, and lighting via the automation system.
• Helps avoid voltage drops that can trigger system faults or shutdowns.

How reliable and safe is this replacement transformer in pool environments?

The unit is built with insulating materials and protective design features intended to resist common pool-area challenges such as humidity and temperature swings. Its conversion efficiency reduces excess heat and energy loss, while stable outputs help reduce stress on connected electronics.

• Compact, robust housing suited for equipment cabinets near pools and spas.
• Insulation and protective construction minimize electrical hazards.
• Efficient voltage conversion reduces energy waste and heat generation.
• Consistent output extends service life of chlorinator and control components.

What installation points should I consider before replacing my transformer?

Turn off mains power and follow Pentair or local electrical codes when replacing a transformer. Confirm input voltage selection and wiring compatibility, and mount the replacement in a dry, ventilated location to maintain long-term reliability.

• Disconnect mains power and follow lockout/tagout procedures before starting.
• Confirm whether your setup uses 115V or 230V input and set or wire accordingly.
• Match output wiring to the IntelliChlor and control board terminals exactly.
• Mount in an accessible, dry cabinet with adequate ventilation to prevent overheating.

Who is this for: Pool and spa owners, service technicians, and installers maintaining older Pentair automation systems that include IntelliChlor salt chlorination and EasyTouch or IntelliTouch controls made prior to the 2011 hardware revision. If your system still lists transformer part 520722 and you want a direct-fit, efficient replacement that restores reliable power to the chlorinator and control electronics, this Lazenta unit is engineered for that purpose. Do not use this product if your equipment specifies part 521441 or later model transformers; always check your equipment documentation or the existing label before ordering.