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UK INSTALLATION INSTRUCTIONS
Water Connection
For all closed systems (with flow and return or tank) the system must incorporate an unvented kit with
the components shown below. The safety relieve valve must discharge safely into a suitable drain via a
tundish.
Mains
Gas Connection
Refer to BS6891 (Natural Gas) and BS5482 (Propane) for guidance on correct pipe sizing calculation.
There must be 20 mbar Natural Gas (G20) or 34.5 mbar Propane (G31) at the inlet of the appliance with
all appliances at high fire.
Electrical Connection
The heater electrical supply must be installed to the latest I.E.E. regulations. If the unit is hard wired
(moulded plug removed) it must be provided with a fused (5A) local isolator with a contact separation of
3mm minimum on all poles for servicing. Observe polarity and ensure that wiring is correctly restrained.
Single Infinity Direct Flow
This information is intended as a guide only, it does not imply
compliance with water or gas installation regulations.
Components will vary depending on the actual installation.
Check local regulations before installation.
Isolation
Y- Strainer Pressure
Valve
Reducing
Valve with
Gauge
Expansion
Vessel
Double
Check
Valve
Direct feed to the hot water outlets.
Mains is fed directly into the unit. Use a strainer, but a check valve
is not required.
Standard domestic or small commercial set up.
Used with controllers to alter the temperature at the point of use
(only using hot tap) or temperature set on the dip switches for the
maximum needed at any outlet, and mixed down by TMVs or
manual tempering valves.
Draining Point
25
Safety
Relief
Valve
Tundish
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