Description

ENVIROSTAT FP6i-230V 6kW Frost Protection Controller

The ENVIROSTAT FP6i-230V is a 6kW electronic frost protection controller designed to provide reliable, energy-efficient freeze protection for pipework, valves, tanks, and other critical equipment. Automatically controlling heater tapes or infrared (IR) quartz heaters, it helps prevent frost damage while reducing unnecessary energy consumption.

Featuring an integrated 2m temperature sensor, soft-start switching, output and load fault detection, and a Building Management System (BMS) alarm relay, the FP6i offers enhanced system monitoring and dependable operation in demanding commercial and industrial environments.

Housed in a robust IP65 enclosure, the ENVIROSTAT FP6i is easy to install, virtually maintenance-free, and built with solid-state reliability for long-term performance in indoor and outdoor frost protection applications.

Key Features

• Automatic frost protection for heater tape and infrared heating systems
• Controls loads up to 6kW (25A)
• Adjustable temperature range from 0°C to +20°C
• Integrated 2m encapsulated temperature sensor
• Soft-start function for gradual load energisation
• IP65 weather-resistant enclosure
• Output and load fault detection
• Sensor open-circuit and short-circuit monitoring
• Power, output, and alarm LED indicators
• Building Management System (BMS) alarm relay
• Solid-state electronics for maintenance-free reliability
• Simple installation and setup

Technical Specifications

Electrical

• Supply voltage: 230V AC ±10%
• Frequency: 50Hz
• Maximum switching capacity: 6kW
• Maximum load current: 25A
• Current consumption: 16mA

Temperature Control

• Temperature range: 0°C to +20°C
• Temperature accuracy: ±1°C
• Soft-start duration: 1 second

Sensor

• Built-in encapsulated 10kΩ NTC thermistor
• Sensor cable length: 2 metres
• Sensor monitoring:
  • Open-circuit detection
  • Short-circuit detection
• Automatic shutdown with alarm on sensor fault

Alarm & Monitoring

• Output and load fault detection
• Power LED indicator
• Output status LED
• Alarm LED with fault indication
• BMS alarm relay (normally energised when system is healthy)

Fault monitoring includes:

• Open-circuit temperature sensor
• Short-circuit temperature sensor
• Open-circuit load
• Open-circuit output relay or semiconductor
• Short-circuit output relay or semiconductor

Terminal Connections

Supply Terminals

• 0.2mm² to 6mm² rising clamp terminals

Sensor Terminals

• 0.1mm² to 1.5mm² rising clamp terminals

Cable Entry

• 10.5mm and 8mm cable glands
• Round cable required to maintain IP65 protection

Environmental

• Operating temperature: -20°C to +40°C
• Protection rating: IP65

Mechanical

Dimensions

• 120mm (W) × 120mm (L) × 65mm (H)

Fixing Centres

• 110mm (W) × 90mm (L)
• 4 × 4.8mm mounting holes

Applications

Ideal for automatic frost protection of:

• Pipework
• Water supply systems
• Process pipework
• Trace heating systems
• Heater tape installations
• Infrared quartz heating systems
• Valves and manifolds
• Storage tanks
• Commercial buildings
• Industrial facilities
• HVAC frost protection systems