TM049 27L Continuous Flow Service Instructions
REV AL
– Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support.
All printed copies are deemed “uncontrolled”.
13
6 Star Release -
From April 2012 production a revised 27L CF model will be produced. This
new model has a higher operational efficiency and therefore has been awarded a 6 star
rating. The new 6 star model is very similar to the 5 star model with the only difference
between the two models being model number, heat exchanger layout, GTC, fan speed and
the flue outlet on internal models.
The 5 and 6 star models can be differentiated by the model number. The model number of
the original 5 star units
has a ‘0’ at the 4
th
digit i.e. 874
0
27NF. The new 6 star models have
a ‘6’ at the 4
th
digit eg: 874
6
27NF.
The 5 star internal models require a water heater flue adapter (p/n: 295121) to be fitted to
the flue outlet and if required a condensate drain section (p/n: 295120) is to be fitted directly
to this adaptor however the water heater flue adapter and the condensate drain are now
included as part of the 6 star heater
’s flue outlet assembly (refer images below).
86X027 model (5 Star)
86X627 model (6 Star)
NOTE:
If a condensation trap is not needed, the condensation spigot MUST have a cap and
clip to prevent exhaust gases escaping into the room on the 6 star product.
EZ-Link
™
system
–
With the release of the 6 star models it will no longer be mandatory for
a remote temperature controller to be fitted to EZ-Linked models. Where a remote is fitted
the unit with the remote connected is the master, whereas in a system where a remote is
not fitted the master must be determined by the installer by modifying the dip switch settings
(refer to page 27 for more information).
