Installation guide

26 | Rinnai Continuous Flow Water Heating Specication Guide 02-13
Rinnai Innity EF specication summary
Rinnai Infinity EF codes
Gas Type EF24 external EFi250 internal EF250 external
NG EF24NCN INFEF250FFN INFEF250N
LPG EF24NCL INFEF250FFL INFEF250L
Description
High efficiency continuous flow gas hot water heaters (with inbuilt frost protection), preset to 55 °C, for domestic
and commercial applications. Suitable for mains and low pressure systems. Electronic ignition—requires
electricity to operate. EF250 units can be preset to deliver higher hot water temperatures making them ideal for
commercial applications. The internal unit is a room sealed appliance.
Hard or acidic water will need to be treated to use this product.
Specification summary
EF24 external EFi250 internal EF250 external
REU No. K2430WG KM3237FFUD KM3237WD
Colour White Gunmetal Grey Gunmetal Grey
Connections
Hot R¾ (20 mm) R¾ (20 mm) R¾ (20 mm)
Cold R¾ (20 mm) R¾ (20 mm) R¾ (20 mm)
Gas R¾ (20 mm) R¾ (20 mm) R¾ (20 mm)
Condensate R½ (15 mm) R½ (15 mm) R½ (15 mm)
Efficiency 95% 95% 95%
Energy star rating 6.8 star energy equivalent 6.8 star energy equivalent 6.8 star energy equivalent
Hot water capacity 2.3-30 L/min 1.5-37 L/min 1.5-37 L/min
Nominal water capacity* 24 L/min (1440 L/h) 32 L/min (1920 L/h) 32 L/min (1920 L/h)
Input on max. 162 MJ/h 211 MJ/h 211 MJ/h
Output on max. 43 kW 55.6 kW 55.6 kW
Weight 27 kg 32 kg 32 kg
* Nominal water capacity at a 25 °C rise
Catch pan
It is important that a suitably drained catch pan is fitted (especially for internal units) where damage could be caused by discharge from
the water heater. Provision must be made for safe disposal of any leaking water to an external location.