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General information:
Outer casing
White pre-coated corrosion protected steel body shell.
Polypropylene top and base mouldings. ABS electrical
controls housings and enclosures.
Water container
Duplex stainless steel. 100% pressure tested to 1.6MPa
(16 bar).
Connections
Pipe connections accept 22mm outside diameter pipe
(compression nuts and olives supplied). Thread rate is
3/4" BSP parallel to accept standard 3/4" BSP female
fittings if required.
Thermal insulation
CFC/HCFC free fire retardant expanded polyurethane
foam with zero ozone depletion potential. It has a Global
Warming Potential (GWP) of 3.1.
Safety Features
Direct models: Manually re-settable thermal cut-out on
each immersion heater. Factory fitted combined T&P and
Expansion Relief Valve. See 6.3 Electrical connections,
page 19
Indirect models: Manually re-settable thermal cut-out on
immersion heater. Manually re-settable thermal cut-out for
primary heating - must be wired in conjunction with 2 port
motorised valve supplied. Factory fitted T&P/Expansion
Relief Valve. See 6.3 Electrical connections, page 20
7
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