condense is allowed to build-up then the exhaust outlet
will become blocked and cause improper operation of the
water heater. The water heater will need to be raised off
the floor, on a concrete slab or base, to utilise a low
profile condensate pump to allow free drainage of
condensate from the outlet fitting. The condensate plastic
drain pipe installation should slope to a suitable drain.
CLEANOUT
All models are equipped with a cleanout opening to aid
the removal of hard water deposits from the tank bottom.
If this water heater operates under hard water conditions,
the following should be performed at least every 3
months: Turn off water supply and drain the water heater.
Remove the cleanout jacket cover and tank cover. When
cleaning the tank, care must be taken to avoid trying to
break deposits loose as this could damage the glass
lining and shorten the life of the water heater. After
cleaning, re-install the cleanout tank cover and jacket
cover, and refill with water. Refer to the section, “Section
6 – Maintenance” in this Installation and Operating
Instruction manual for the procedures for filling and
draining the water heater.
ELECTRICALLY POWERED ANODES
All models are supplied complete with Andrews’ Correx
Powered Anode system. The anodes are non-sacrificial
and therefore do not require any maintenance or
replacement. For this reason, the service clearance
required above the water heater can be reduced quite
significantly. Correx anodes require a permanent power
supply, this is all pre-wired and the anode system can be
located at the top of the heater, beneath the top cover.
SERVICE PANEL
The service panel is located behind the service panel
access cover, which is located by the exhaust outlet tee
piece near the bottom of the water heater. This panel
contains a pressure switch to monitor for excess pressure
in the exhaust pipe from a blocked vent condition.
A collector high limit switch is used to monitor the
ambient temperature between the first pass collector and
the exhaust collector. This is a manually re-settable
switch. If this switch continues to trip, please contact
Andrews Water Heaters.
ACCESS LID
Access for servicing the water heater from the top is easy.
Remove the two latches and the metal screw at the front
centre of the top to remove the lid for accessing the
heater controls. The lid must be replaced and re-latched
upon completion of servicing.
TECHNICAL DETAIL
Thermal Efficiency up to 98.0%
– Fully condensing
design.
Three Pass Flue System
– The three pass flue system
keeps the hot combustion gases moving at a high
velocity. The combination of high turbulence and velocity
causes an enormous rate of heat transfer into the water.
Low NOx Premix Power Burner
– Developed for the
ECOflo Range, a turbulent flame shoots down the
submerged combustion chamber. This turbulence causes
a thorough mixing of the gas and air for optimum
combustion and high heat transfer efficiencies.
Submerged Combustion Chamber
– Submerging the
combustion chamber in the centre of the water storage
tank minimizes radiant heat loss and improves efficiency.
Non-CFC foam insulation
– Surrounds the tank
surface, saving energy by reducing heat loss.
Electronic Controls
– Adjustable electronic thermostat
27°-82°C recycling Energy Cut Off (E.C.O) shuts off all
gas in event of an overheat condition.
Zero Inch Clearance
– The ECOflo external jacket is
cool to the touch and is approved for zero inches to
combustibles for unsurpassed installation flexibility.
Vitraglas
®
lined tank
– Andrews Water Heater tanks are
protected from the corrosive effects of hot water by an
exclusive ceramic porcelain-like coating. Our high silica
Vitraglas® lining provides a tough interior surface.
Electrically powered anodes
– Each ECOflo product is
supplied with a factory fitted Andrews Correx Powered
Anode system. This significantly reduces service time due
to the anodes being maintenance free.
Factory installed Hydrojet
®
Sediment Reduction
System
– Cold inlet sediment reduction device made of
stainless steel for increased durability. Helps prevent
sediment build up in tank.
Factory installed dielectric fittings
– All heaters are
equipped with special water heater nipples for longer
heater life. No special dielectric fittings to buy.
Flexible Venting
– The ECOflo range can be flued
vertically or horizontally with the Andrews 100/150mm
concentric flue pipe system.
The maximum flue run length is sixteen metres from the
appliance connector to the terminal.
SECTION 3 •
INSTALLATION
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