Temperature Controls - Rinnai HDC 1600i Low NOX Installation And User Manual

TEMPERATURE CONTROLS

General Information
Commercial installations do not generally have controllers installed. These installations
usually have one permanent set temperature that is constant at all times. The public should
not have access to alter the temperature in these situations. These installations do not
require controllers as the temperature can be set by a series of dip switches on the PCB.
Exceptions to this are the following:
1. Circumstances where the required temperature is not available with the dip switches (for
example 41°C or 47°C).
2. Circumstances where the temperature needs to be raised periodically by the building
occupant in order to flush the system.
3. Domestic situations where the user needs control of the temperature of the water so that
different temperatures can be used at different outlets.
In situations such as 1 and 2 the controllers should be installed in places out of reach of the
public, such as in the maintenance room or in a locked cupboard.
This Commercial Setting will allow the controller to come back on
automatically after a power cut at the temperature setpoint previous
to the power cut, regardless of whether water is flowing through the
NOTE
unit . This should only be used for commercial installations.
NEW FEATURE
The maximum temperature available on the Primary Universal Remote Controller is the set
point on the dip switches. If only one controller is installed it will not go beyond 50°C when
first installed. To bypass this see page 11.
Positioning the temperature controls, the following points should be taken into account:
 Fit the controls out of reach of children (suggested height from the floor 1.5m).
 Avoid positions where the controllers will become hot. Do not fit them near stoves or
ovens, or above radiators or heaters.
 If possible, avoid exposure to direct sunlight or positions where bright lights will make the
digital display difficult to read.
 Position away from areas where the controller will be prone to splashing by cooking
products such as oils and fats.
 The temperature controllers are water resistant, however they should be positioned away
from areas where direct or persistent splashing could occur.
 Refer to the local electrical wiring regulations current edition for location requirements in
shower and bath areas.
 The cables to the temperature controller carry only 12VDC (extra low voltage).
 When using more than one temperature controller the signal cable should be run in
parallel. Do not wire the controllers in series.
The installation in every application will vary, therefore the temperature controller cable has
been provided so that you may cut the length accordingly and fit the spade connectors,
ensuring a good connection.
Cables are connected at the primary
temperature controller cable.
Polarity is not important when connecting
the cables. If more cable is needed any
cable with similar specification to the
cable supplied with the controller can be
used.
Maximum length from unit is 20 metres
using up to 3 or 4 controllers (50m if just
two).
Controller connection in parallel
Rinnai
Main
controller
34
Bath
controller