Specifications

Megaflo He

The Premier Plus SystemFit is a factory pre-plumbed and wired version of the Premier

Plus unvented water heater. The Premier Plus SystemFit is manufactured in the UK

from top quality materials and meets all the latest relevant safety and constructional

standards. The high grade Duplex stainless steel cylinder offers exceptional strength

and corrosion resistance which is backed by a 25 year on site parts and labour guar-

antee. Its performance, control system and insulation levels exceed the latest require-

ments of Building Regulation Part L.

The Premier Plus SystemFit unvented water heater can be fed directly from the mains

supply to the property without the need for separate feed cisterns or vent pipes. It is

supplied tted with all its necessary inlet and safety controls for compliance with Building

Regulations. Also tted are a primary circulating pump, automatic bypass valve, a ow

balancing valve, 2 x 2 port motorised valves, a cylinder thermostat, thermal cut-out and

wiring centre. The pump, motorised valves and thermal controls are supplied pre-wired.

A heating and domestic hot water programmer and room temperature sensor are sup-

plied loose for installation at a convenient position within the property. An electric immer-

sion heater is also tted to enable the unit to be heated should the boiler be turned off.

The Premier Plus SystemFit primary circuit can be connected to a variety of gas or

oil red boiler types, either open vented or sealed system. It is not recommended for

use with “system” boilers as these already incorporate their own circulating pump and

controls.

The Premier Plus SystemFit is supplied with a separate expansion vessel for the do-

mestic hot water. An expansion vessel for a primary sealed circuit is also supplied loose

for installation on site.

NOTE: if using a sealed system boiler adequate provision for primary

circuit pressure relief must also be provided by means of a suitably

sized Pressure Relief Valve. The safety valves tted to the Premier Plus

SystemFit protect the water heater only. Failure to provide adequate Pri-

mary System Pressure Relief when using a sealed system will invalidate

the boiler manufacturers warranty. Consult the boiler manufacturers

installation instructions for further advice.

Introduction