Smartstart - Rinnai REU-V2632FFUG Service Manual

5. Smartstart

At least one temperature controller model MC-91Q must be used in conjunction with the water heater
and the Smartstart® system. Alt ernatively, if water c ontrollers cannot be used a manual a ctivation
switch must be used. Water Controllers cannot be used with the REU-V2426WS model.
At least one water controller model MC-91Q must be used in conjunction with the water heater and the
Smartstart® system. Alternatively, if water contro llers cannot be used a manual activation switch is
available. Refer to the installation manual for the Smartstart® system.
The installation of th e water heat er and wat er controllers must be performed in acc ordance with the
operating/installation instructions supplied with the water heater.
The Smartstart® system is designed for domestic installations. However, it may be suitable for certain
non domestic installations.
Principle of operation
The "Smartstart®" system heats the w ater in the pipework water connected between the water heater
and the hot water outlets before any outlets are opened using the 'flow and return' pipework principle.
This results in water savings an d reduced waiting time for heated water delivery from the outlet when
opened.
Traditional 'flow and return' systems usually keep the water in the pipework heated continuously. The
Smartstart® system however, only heats the water before the outlet is opened. This results in significant
energy savings because water is not heated unnecessarily whilst retaining the benefits of traditional flow
and return systems.
A schematic of the Smartstart® system installed in conjunction with a Rinnai continuous flow water
heater and water controller as shown below.
If problems are experienced with Smartstart® operation refer to the Smartstart® Service Manual.
One or more
MC-91Q
Controllers
Hot Water
Outlet
Hot Water
Outlet
Infinity REU-V2632FFUG / HD200i REU-VM2632FFUC
Preheat Button
Heating Loop Flow
Heating Loop Return
- 7 -
Rinnai Continuous
Flow Water Heater
H C G
O O A
T L S
D
Smartstart®
Module
Cold Inlet Mains
Issue 1 - 16/12/09 ©Rinnai