CFEWH SERIES 2
–
Three phase | INSTALLATION Manual © Mar 2022 | MicroHeat Technologies Pty LTD Page
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CFEWH Plumbing & Electrical Installation
PLUMBING CONNECTION
Water Inlet Pressure Limiting Valve and Shutoff Valve Connection
The unit is a closed outlet water heater and is intended to
operate at the pressure of the water mains, where
the flow of
water is controlled by one or more faucets/valves in the
outlet
line
.
The unit can be installed into any type of commercial or
residential construction as per the current Plumbing Standards.
•
However,
it is mandatory for a water pressure limiting valve
and a shutoff valve to be connected in series with the unit’s
cold water inlet connection
(6).
•
The unit maximum rated operating line pressure is 1 MPa /
10 bar /145 PSI.
•
The unit minimum operating pressure is
atmospheric pressure.
•
The installation of a pressure limiting valve
–
a
mandatory requirement
–
ensures that excess
water pressure applied, as result of water
hammer and/or other circumstances, does not
stress the appliance unduly.
•
The inline water pressure limiting valve must be
rated at 5.0 bar/72.5 psi/500 kpa.
•
The shutoff valve installed
must not be
a non-
return type valve.
•
If the water heater is supplying a Dishwasher /
Washing machine, a water hammer arrestor must be installed on the outlet side of the water heater.
CFEWH Series 2 plumbing connection
IMPORTANT
MicroHeat nor its Distributors will be liable for any damages through failure to comply with the
installation and operating instructions outlined in this manual
–
specifically in this instance where
the specified water pressure limiting valve and shutoff valve type, as indi
cated, must be installed
with this unit. - If the unit is supplying a dishwasher or washing machine a water hammer
arrestor must be installed at the outlet side of the unit, failure to do so will void warranty.
Acceptable inlet/outlet connections
The Inlet (6) and Outlet (7) water connections are
both ½” BSP SERIES GB.
There are three options for
inlet/outlet connections with this unit:
Recommend distance
between units less
than 750 mm to
minimise heat loss.
Tandem CFEWH Series 2 Models Plumbing Connection
