Oasis Heat Junction 3 Independent Pump Controller

🏷️ Brand

Oasis (Sunlover Group)

📝 Description

The Oasis Heat Junction 3 (HJ3, SLHJ3) is a 240V independent pump controller that automatically switches on a separate circulation pump whenever an Oasis heat pump calls for water flow, with a 9.98A / 2395W pump socket and IP33 rating.

It suits heat pump installations where the heat pump has its own independent circulation (boost) pump rather than sharing the filter pump. The HJ3 connects to the voltage-free "HJ" or dry contact terminals inside the Oasis heat pump, so the pump only runs when the heat pump needs it.

There are no buttons or menus to set up, and it resumes normal operation by itself after a power interruption.

📦 Parts Included

• 1x Oasis Heat Junction 3 controller
• 1x Mounting screws and wall plugs
• 1x Installation and operation manual

⚙️ Specifications & Compatibility

• SKU: SLHJ3
• Function: switches an independent circulation pump from the heat pump's HJ / dry contact output
• Compatible with: Oasis heat pumps with HJ (voltage-free) terminals
• Pump socket: 240V
• Maximum load: 9.98 A / 2395 W
• Power cable: 1.8 m
• Protection rating: IP33

💡 Before You Buy

• Independent or shared pump? The HJ3 is for heat pumps with their own separate circulation pump. If your heat pump is plumbed in line with the filter pump and a chlorinator, you need the Oasis Heat Junction 5 (HJ5) instead.
• Connection point. The HJ terminal location differs across the Oasis range, so check your heat pump's installation manual before wiring the two-core cable.
• Mounting. Mount at least 3 m from the water's edge and 600 mm above the ground, and plug it straight into a power point, not an extension lead.

❓ Common Questions

• Does it need programming? No. The HJ3 has no buttons or menu and simply follows the heat pump's call for flow.
• What happens after a power cut? It returns to normal operation automatically.
• Can I connect it to any heat pump? It is designed for Oasis heat pumps using their voltage-free HJ terminals. Connecting it to other outputs can void the warranty.

📂 Downloads and Support

• Oasis HJ3 Installation and Operation Manual (PDF)
• Shop Heat Pumps
• Shop all Oasis products

🚚 Shipping

• Flat Rate
• Express
• Special Order Item - Please allow an additional 3-5 working days for shipping
• Review all shipping rates

🛡️ Warranty Information

Limited 3 year back-to-base warranty from Sunlover / Oasis against component failure or faulty workmanship, from the date of installation.

Other Search Terms: Oasis HJ3, Heat Junction 3, SLHJ3, Sunlover HJ3, heat pump boost pump controller, independent pump controller, Oasis Aquatics heat junction