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5. CONDENSATE REMOVAL
All SP6 models have a condensate drain outlet. A fitting and clamp are provided loosely beneath the heater lid for
connection to the drain (refer to Diagram 13).
•
The outlet is located in the bottom corner below the gas supply connection point.
•
The condensate is mildly acidic, and shall be run via a PVC pressure pipe (to AS 1477), with an outside
diameter of approximately 27mm, away from the heater to a suitable area (i.e. to above a drain, sewer or pit)
•
Use PVC cement on all joints to prevent any condensate leakage.
•
Do not connect the condensate drain directly to the sewer or below ground level of a storm water drain. A
blockage in the drain system would cause the heater condensate tank to flood with water and shut down. Check
for any additional local drainage codes which may apply.
•
Under no circumstances should it be allowed to run onto electrical connections, earth stakes, copper pipes or
concrete paths. It should also not discharge onto metallic roofs or guttering, however the condensate drain may
terminate into the vertical section of a downpipe above ground level.
•
Tube length should be minimised and a continuous fall of 20mm per metre created. Maximum equivalent tube
length of 12m is recommended (or increase diameter size).
•
Under no circumstances should any part of the tube sag or run uphill.
•
Special consideration is required for installation in areas experiencing sub-zero temperature as condensate
could freeze in the drain. In these cases, larger diameter drainage piping is required.
•
Approximately 2 to 3 litres per hour of condensate may be produced under continuous running conditions,
depending on the size of the heater.
Note: Ensure adherence to these instructions: Incorrect drainage can cause serious damage to the heater and/or its surroundings.
5.1
CONDENSATE DRAIN
Fitment of the 'BARBED CONNECTOR" and 'DN 20 PRESSURE PIPE' is identical for SP6U internal and external
installations.
5.1.1 Install a Condensate Drain to an SP6 Universal and Internal Units
a. Retrieve the barbed connector and hose clamp supplied loosely in the controls area beneath the lid.
b. Slide the hose clamp over the flexible hose.
c. Fit the barbed connector to the flexible condensate hose (refer to Diagram 13).
d. Fasten the hose to secure the barbed connector to the flexible hose.
e. Fit the DN20 pressure pipe drain to the barbed connector.
Note: Always use the correct PVC cement to bond the field supplied PVC pressure pipe to the barbed connector, following the
instructions as detailed for the PVC cement for proper bonding and curing.
Diagram 13. Condensate Drain Installation
BARBED CONNECTOR
(Supplied)
Rinnai
HOSE CLAMP
(Supplied)
FLEXIBLE CONDENSATE HOSE
DN20 PRESSURE PIPE
(Field Supplied)
20
Ducted Gas Heater IM
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