Installation guide

This water heater is a condensing type unit and requires a drain to be located in close

proximity to allow the condensate to drain safely. The condensate drains from the unit at the

base of the exhaust tee piece located near the bottom of the unit. The exhaust tee is

provided with a 32mm dia connection. A condense siphon is supplied in the flue kit which

should be connected to the 32mm connection at the base of the exhaust tee. The siphon

outlet must be connected to a 40mm dia OD plastic waste system. If the 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

or utilise or 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.

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.

All models are supplied complete with the Andrews Correx UP 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.

INSTALLATION SECTION 3

CONDENSATE

DRAIN

CLEANOUT

ELECTRICALLY

POWERED

ANODES

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 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 for servicing.

SERVICE PANEL

ACCESS LID