10
External unit - horizontal obstructions
AS/NZS 5601 states a minimum horizontal clearance of 500 mm between a building structure and
obstruction facing the terminal. At 500 mm the obstruction needs to be the full height of the unit,
as shown below, and not a partial obstruction. A partial obstruction of less than 1 m could result in
wind pushing the flue gases back into the flue terminal.
500mm
Minimum obstruction
height to be no less than
top of appliance
There
MUST
be
NO
partial obstructions to the appliance front cover or any other part of
the appliance casing. This will avoid the appliance from failing to operate under windy
conditions.
IMPORTANT
Water delivery temperature
Requirements of AS/NZS 3500 MUST BE considered regarding the temperature limitations of hot
water supplied to areas used primarily for personal hygiene. The temperature of these areas may
be limited to 55 °C or less.
If the appliance is to deliver water primarily for the purposes of personal hygiene in an early
childhood centre, school, nursing home or similar facility as defined in AS/NZS 3500.4, a
Temperature Limiting Device (TLD), such as a tempering valve may be required, even if the
appliance is set to 55 °C or less. For these types of applications contact Rinnai.
Requirements for Rinnai INFINITY units installed without controllers
Diagram 1 - 55 °C Appliance
55 °C
Diagram 2 - Not a 55 °C Appliance
(TLD = Temperature Limiting Device)
Ho
t
Cold
G
a
s
Ensuite
Laundry
Bathroom
Kitchen
Ho
t
Cold
G
a
s
Kitchen
> 55 °C
Laundry
> 55 °C
Ensuite
< 55 °C
Bathroom
< 55 °C
TLD
When the Rinnai INFINITY is set to deliver water at a temperature higher than 55 °C, it will be
necessary to fit a Temperature Limiting Device for delivery to areas used for the purposes of
personal hygiene.
Summary of Contents for A28i
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