⚙️ Gecko Universal HQ YE-5 Complete System + 3kW Heater + IN.K450 Topside – Low-Flow Retrofit Control Pack

The complete spa control system bundle for retrofitting and upgrading low-flow spas including Dimension One, Saratoga, Watkins, Caldera, HotSpring and more

📋 Product Overview

The Gecko Universal HQ YE-5 Complete System (PK-HQ001) is a comprehensive spa control bundle designed specifically for retrofitting and upgrading low-flow spa systems. This all-in-one package includes everything needed to replace or upgrade the control system in spas from major brands including Dimension One, Saratoga, Watkins, Caldera, HotSpring, and many others.

Manufactured by HydroQuip to Gecko specifications, the YE-5 system operates at 230VAC/50Hz and features a powerful 3kW No-Fault heater with 3/4″ ribbed barb connections for easy integration with existing low-flow plumbing. The included IN.K450 topside panel provides intuitive six-button control with LED display for complete spa management.

This bundle includes everything required for installation: control box with heater, IN.K450 topside panel with bezel, Harwil flow switch, AMP cables and adapters, light cable, vinyl pipe, and connection rings. The YE-5 supports versatile pump configurations including dual-speed pumps, single-speed pumps or blowers, circulation pumps, ozonators, and 12V lighting.

⭐ Key Features

• ✅ Complete System Bundle – Everything needed for retrofit or upgrade
• ✅ 3kW No-Fault Heater – Reliable, safe heating system
• ✅ IN.K450 Topside Included – Six-button control with LED display
• ✅ Low-Flow Design – For low-flow circulation spa systems
• ✅ 230VAC / 50Hz – UK compatible power supply
• ✅ Multi-Brand Compatible – Dimension One, Saratoga, Watkins, Caldera, HotSpring
• ✅ Multiple Pump Configurations – Dual-speed, single-speed, blower options
• ✅ Ozone Ready – Built-in ozonator support
• ✅ 12V Lighting Output – For spa lighting control
• ✅ Circulation Pump Support – Dedicated continuous low-speed output
• ✅ All Cables Included – AMP cables, adapters, light cable
• ✅ 3/4″ Ribbed Barb Connections – Easy plumbing integration

⚙️ Technical Specifications

Control System

Specification	Value
Manufacturer	Gecko / HydroQuip
Model	Universal HQ YE-5
SKU	PK-HQ001
Product Type	Control System Bundle
Series	Y Series
Operating Voltage	230VAC
Frequency	50Hz
Heater Power	3.0 kW
Heater Type	No-Fault Heater
Ozone	Ready
Plumbing Size	3/4″ (Ribbed Barb)
Box Quantity	Sold Individually

Dimensions

Component	Dimensions
Control Box	490 mm (L) × 110 mm (D) × 280 mm (H)
Topside Panel	178 mm × 83 mm

OEM Compatibility

Brand	Status
Hot Spring	✅ OEM Compatible
Caldera	✅ Compatible
Watkins	✅ Compatible
Dimension One	✅ Compatible
Saratoga	✅ Compatible
Other Low-Flow Systems	✅ Compatible

📦 What’s Included in the Bundle

Item	Description
Control Box	Low-Flow control box with 3kW No-Fault Heater
Topside Panel	Gecko IN.K450 six-button topside
Topside Bezel	IN.K450 mounting bezel
Flow Switch	Harwil flow switch
Power Cables	AMP cables and adapters
Light Cable	12V lighting connection cable
Vinyl Pipe	3/4″ vinyl pipe for plumbing
Connection Rings	3/4″ rings for secure connections

Everything you need for a complete installation is included!

🔌 Pump Configuration Options

The YE-5 supports a versatile range of pump configurations:

Output	Options	Voltage
Pump 1	Dual-speed pump	115V or 230V
Pump 2	Dual-speed pump	115V or 230V
Pump 3 / Blower	Single-speed pump OR air blower	–
Circulation Pump	Dedicated continuous low-speed pump	–
Ozonator	Low-voltage ozone output	–
Lighting	12V lighting output	12V

Flexible Configuration:

• Run 2 dual-speed jet pumps for full hydrotherapy
• Add a third single-speed pump or air blower
• Include a dedicated circulation pump for continuous filtration
• Connect ozonator for water sanitation
• Control 12V spa lighting

🎛️ IN.K450 Topside Panel

The included IN.K450 topside panel provides intuitive spa control:

Button Configuration:

• 6 buttons: Power, 1, 2, 3, Light, Temp
• LED screen display
• Temperature control
• Up to 3 pump control
• Lighting control

Topside Dimensions: 178 mm × 83 mm

The IN.K450 is a proven, reliable topside control commonly found in Gulf Coast Spas, Passion Spas, and other premium brands using Gecko IN.XM, IN.XE, and YE systems.

🔄 Retrofit & Upgrade Applications

What is a Low-Flow System?

Low-flow spa systems use a dedicated circulation pump that runs continuously to filter and heat water, rather than relying on the main jet pumps. This design is more energy-efficient and common in brands like:

Brand	Low-Flow Systems
Hot Spring	✅ Most models
Caldera	✅ Most models
Watkins Manufacturing	✅ Various brands
Dimension One	✅ Select models
Saratoga	✅ Select models

When to Use This Pack:

• 🔄 Replacing failed control system
• ⬆️ Upgrading outdated electronics
• 🔧 Converting to modern Gecko control
• 🛠️ Complete spa rehabilitation
• ✅ OEM-equivalent replacement for Hot Spring

🔧 3kW No-Fault Heater

Heater Specifications:

Specification	Value
Power Output	3.0 kW
Type	No-Fault (dry fire protected)
Connection	3/4″ Ribbed Barb
Voltage	230V

No-Fault Technology: The No-Fault heater design includes dry fire protection – if water flow is insufficient, the heater will not activate, preventing damage. This safety feature is essential for low-flow systems where water flow rates are lower than standard spa systems.

3/4″ Ribbed Barb Connections: The heater connections use 3/4″ ribbed barb fittings designed to connect directly to 3/4″ vinyl or flexible pipe, making integration with existing low-flow plumbing straightforward.

🛠️ Installation Guide

Before Installation:

• ⚠️ Disconnect ALL power to spa before any work
• ⚠️ 230VAC installation must comply with UK electrical regulations
• ⚠️ Document existing wiring before removal
• ⚠️ Review all included documentation before starting

General Installation Steps:

1. Power Off – Isolate all electrical supply to spa
2. Document – Photograph existing connections
3. Remove – Disconnect and remove old control system
4. Position – Mount new control box in equipment bay
5. Plumbing – Connect 3/4″ heater connections to existing plumbing
6. Flow Switch – Install Harwil flow switch
7. Electrical – Connect pumps, blower, ozone, lights using AMP cables
8. Topside – Install IN.K450 topside panel with bezel
9. Test – Fill spa, power on, and test all functions

Included Documentation:

• Start-Up Guide
• Y Series Technical Manual
• Troubleshooting Guide
• Quick Reference Card (QRC)

🔌 Electrical Connections

Main Power:

• 230VAC / 50Hz
• Requires dedicated circuit
• RCD/RCBO protection required
• Must be installed by qualified electrician

Output Connections:

• Pump 1: AMP connector (dual-speed capable)
• Pump 2: AMP connector (dual-speed capable)
• Pump 3/Blower: AMP connector (single-speed)
• Circulation Pump: Dedicated output
• Ozonator: Low-voltage output
• Lighting: 12V output

AMP Cable System: The included AMP cables and adapters allow connection to standard spa pump configurations. The AMP connector system provides secure, weatherproof connections.

🔍 Troubleshooting

Common Issues:

Problem	Possible Cause	Solution
No power	Supply issue	Check breaker, RCD, connections
No heat	Flow switch issue	Check flow switch, water level
Error codes	Various	Refer to troubleshooting guide
Pump not running	Connection or pump fault	Check AMP connections, pump
Topside blank	Connection issue	Check topside cable connection

Documentation: The included troubleshooting guide (9919-101313-D) provides comprehensive error code explanations and diagnostic procedures for the Y Series and XE systems.

🔩 Maintenance

Routine Maintenance:

Task	Frequency
Check water chemistry	Weekly
Inspect flow switch	Monthly
Check heater operation	Monthly
Inspect electrical connections	Annually
Professional service check	Annually

Filter Maintenance: Low-flow systems typically have specific filter requirements. Maintain your filter according to spa manufacturer guidelines.

Water Chemistry: Proper water chemistry is essential for heater longevity. Maintain balanced pH, alkalinity, and sanitiser levels.

♨️ Ideal Applications

Application	Suitability
♨️ Hot Spring spa retrofit	✅ OEM Compatible
♨️ Caldera spa upgrade	✅ Ideal
♨️ Watkins brand spas	✅ Ideal
♨️ Dimension One retrofit	✅ Ideal
♨️ Saratoga spa upgrade	✅ Ideal
♨️ Other low-flow systems	✅ Compatible
❌ Standard flow spas	❌ Use standard pack
❌ Balboa system spas	❌ Use Balboa pack

Common Retrofit Scenarios:

• 🔄 Failed control board replacement
• ⬆️ Upgrading 20+ year old electronics
• 🛠️ Complete spa rehabilitation project
• ✅ Hot Spring OEM-equivalent replacement
• 🔧 Converting proprietary systems to Gecko

❓ Frequently Asked Questions

Q: What makes this a “low-flow” system?

A: Low-flow systems are designed for spas that use a dedicated circulation pump running continuously at low speed, rather than using main jet pumps for heating and filtration. This is more energy-efficient and common in brands like Hot Spring, Caldera, and Watkins.

Q: Is this compatible with my Hot Spring spa?

A: Yes, this system is OEM-compatible with Hot Spring spas that use low-flow circulation systems. The 3/4″ ribbed barb connections are designed for Hot Spring and similar plumbing configurations.

Q: What’s included in the bundle?

A: Everything needed for installation: control box with 3kW No-Fault heater, IN.K450 topside panel with bezel, Harwil flow switch, AMP cables and adapters, light cable, 3/4″ vinyl pipe, and connection rings.

Q: What pumps can I connect?

A: The YE-5 supports: 2 dual-speed jet pumps (115V or 230V), 1 single-speed pump or blower, 1 circulation pump, ozonator, and 12V lighting.

Q: What’s a No-Fault heater?

A: A No-Fault heater includes dry fire protection – it won’t activate without proper water flow, preventing damage. This is essential for low-flow systems.

Q: Is the topside panel included?

A: Yes, the Gecko IN.K450 six-button topside panel with bezel is included in this bundle.

Q: What voltage is this system?

A: 230VAC / 50Hz – standard UK power supply.

Q: What plumbing size is the heater?

A: 3/4″ ribbed barb (RB) connections for connection to 3/4″ pipe.

📄 Downloads & Resources

• Techbook
• Start Up Guide
• Troubleshooting Guide
• Software

🏆 Why Choose the Gecko Universal HQ YE-5 System (PK-HQ001)

• ✅ Complete Bundle – Everything included for installation
• ✅ 3kW No-Fault Heater – Safe, reliable heating
• ✅ IN.K450 Topside – Proven six-button control panel
• ✅ 230VAC / 50Hz – UK compatible
• ✅ Low-Flow Design – Energy-efficient circulation
• ✅ Multi-Brand Compatible – Hot Spring, Caldera, Watkins, and more
• ✅ Versatile Pump Support – Multiple configuration options
• ✅ Ozone Ready – Water sanitation support
• ✅ All Cables Included – AMP connectors and adapters
• ✅ Comprehensive Documentation – Technical manual, troubleshooting guide
• ✅ Genuine Gecko/HydroQuip Quality – Industry-leading reliability

🇬🇧 Why Buy from Parts4Tubs

• ✅ UK-based company with local support
• ✅ Fast UK delivery
• ✅ Expert advice from spa specialists
• ✅ Complete system bundles available
• ✅ Technical support for installation queries
• ✅ Full warranty support
• ✅ Easy returns within 30 days

✨ Summary

The Gecko Universal HQ YE-5 Complete System (PK-HQ001) is a comprehensive spa control bundle designed for retrofitting and upgrading low-flow circulation spa systems. Includes control box with 3kW No-Fault heater, IN.K450 six-button topside panel with bezel, Harwil flow switch, all AMP cables and adapters, light cable, 3/4″ vinyl pipe, and connection rings. Operating at 230VAC/50Hz with 3/4″ ribbed barb heater connections, this system is compatible with Hot Spring, Caldera, Watkins, Dimension One, Saratoga, and other low-flow spa brands. Supports multiple pump configurations including dual-speed pumps, circulation pump, blower, ozonator, and 12V lighting. Full documentation including technical manual, start-up guide, troubleshooting guide, and quick reference card available. Professional electrical installation required. Order from Parts4Tubs for fast UK delivery and expert technical support.