Opal Panel Heaters
Vent-Axia. The following information is provided for reference only.

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The Vent-Axia Opal range of panel heaters offers a slim stylish design with a variety of control options. Popular with specifiers, contractors and home owners, the Opal range is ideal for new build and refurbishment.
Available in two models; Electronic Thermostat and Mechanical Thermostat in sizes from 500W to 2kW.

Zone Control Options
All Opal panel heater controllers are fully programmable offering closer management of energy control with resultant cost savings.
The wide choice of control options offers multiple zone control, holiday mode and frost protection. With such a wide range we have a controller to suit almost any application.
ET & MT Range Specification
• Element - sheathed aluminium compact finned
• Electrical Connection - 230V/50Hz
• BEAB Approved
• IP Rating - IP 24 rated, splash proof
• Insulation Class 2, Double insulated
• Thermal Cut-Out - Auto re-set type
• Colour - Traffic White (RAL 9016)
• Installation - Easy fix detachable wall mounting brackets
• Electrical Connection - 1m 3-core (Live, Neutral and Pilot) supplied and fitted to each heater
ET Range (Electronic Thermostat)
Central Zone Control
Compatible with single & two zone central controllers.
Energy saving electronic control
Accurate, fast acting control is essential for reducing temperature overrun and minimising energy consumption.
The silent operating electronic thermostat is accurate to +/- 0.3° and acts quickly to maintain consistent temperature levels.
ET Range Temperature Graph

MT Range (Mechanical Thermostat)
Accurate, fast acting mechanical thermostat. Eco set-back reduces temperature by 3°. Mechanical thermostat accurate to +/- 1.5°
MT Range Temperature Graph

Tamper Proof Controls
Selection switch and temperature can be fixed in one position to prevent adjustment. The temperature control may alternatively be restricted to a max/min range.
Central Control
Central controllers are available in two formats, Pilot Wire and Mains Borne Signalling. Pilot Wire is ideal for new-build installations where a signal cable is installed with the power cable at first fix stage.
Pilot Wire (ET range only)
Pilot wire installations require a control wire from the programmer linking each heater. Up to 15 heaters per zone can be connected to one controller.
Pilot wire installations are ideal for new-build applications where the control wire can be installed with the first fix wiring. No additional receivers are required, making this a cost effective central control option.
Mains Borne Signalling (ET range only)
Mains Borne Signalling (MBS)
MBS is ideal for refurbishment projects where cabling is already installed. The VA MC controller is heater mounted and requires a receiver, VA MI on each additional heater to be controlled. Up to fifteen heaters can be linked to one VA MC controller.
Performance
| Model | Stock Ref No | Input (kW) | Width A (mm) | Weight (kg) |
|---|---|---|---|---|
| VAPH 050ET | 436956 | 0.5 | 370 | 4.1 |
| VAPH 075ET | 436957 | 0.75 | 370 | 4.7 |
| VAPH 100ET | 436958 | 1.0 | 445 | 4.1 |
| VAPH 150ET | 436960 | 1.5 | 590 | 6.1 |
| VAPH 200ET | 436961 | 2.0 | 740 | 7.4 |
| VAPH 050MT | 436962 | 0.5 | 370 | 4.1 |
| VAPH 075MT | 436963 | 0.75 | 370 | 4.7 |
| VAPH 100MT | 436964 | 1.0 | 445 | 4.1 |
| VAPH 150MT | 436966 | 1.5 | 590 | 6.1 |
| VAPH 200MT | 436967 | 2.0 | 740 | 7.4 |
Dimensions
Diagram:

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