Rinnai
7
Ducted Gas Heater IM
1. SCOPE
This installation manual is intended to be used as a guideline for the installation of Gas Fired Central Heaters.
It covers only the installation and commissioning of the heater and the allowable flueing configurations. Although
recommended return air grilles and allowable duct outlet quantities are specified, it does not cover the actual ducting
design required to suit the installation.
This installation manual is based on Australian codes. For all other applications, please refer to local codes and
regulations.
These heaters must be installed and serviced only by qualified personnel. This manual applies to the following
models:
Brivis Classic Heaters
External Models
Internal Models
BX315C
2PW15N
BX320C
2PW20N
BX326C
2PW20N XA
2PW26N
2PW26N XA
NOTE
The BX320C and BX326C models can be installed for extra air (XA) applications with an upgrade
in base box size, and these are an optional accessory
NOTE
Brivis Classic Ducted Gas Heaters do not have on-board Add-On Cooling connections, refer to
the Add-On cooling section for more detail.
1.1
Installer Due Diligence for Changeovers
Modern ducted gas heaters, even those that are physically ‘like-for-like’, typically have different technical specifications
and control systems to existing, older models. Modern units usually have higher Star Ratings, which are accompanied
by higher airflows. Higher efficiency heaters with modulating gas valves also operate differently to non-modulating
units.
When doing a direct unit change over:
•
Do a comprehensive inspection of the entire existing system to ensure it is ‘fit for purpose’ with the new heater
•
Check existing items that are not being replaced; i.e. ensure the soundness and suitability of all fittings and
controls for use with the new ducted gas heater (e.g. Duct sizes, Flue, Return Air grille size, Thermostat, Zoning
etc.)
•
Correctly commission the new ducted gas heater – where possible, align it with the performance characteristics
of the original system – do not leave units at the factory default settings unless you are absolutely certain the
settings are appropriate
Failure to observe best practice can lead to costly call backs for installers, unnecessary manufacturer warranty calls
and a poor customer experience.
With our policy of continuous improvement, we reserve the right to change, or discontinue at any time, specifications
or designs without notice.
Definitions
Shall
Indicates a mandatory requirement of this manual.
Should
Indicates a recommended requirement of this manual.
Any deviations from these instructions may, at the discretion of the manufacturer, void the warranty. As a result, the
customer and/or installer may be charged a fee for non-product warranty related call outs. Also note that failure to
comply with these instructions may preclude company service personnel from being able to service the unit.
