Demand Rapid: Rapid recovery storage system

Smaller commercial rapid recovery storage systems.

Demand Rapid: Rapid recovery storage system

A complete storage hot water system made up of a Rinnai INFINITY commercial continuous flow gas water heater (external or internal unit), a pump, a thermostat and controller, and a 315 L Demand Duo cylinder.

How it works
The thermostat senses the temperature of the water in the cylinder, and when it drops below the set point, the pump is activated. The flow then starts the Rinnai INFINITY, which returns heated water to the cylinder.

Demand Rapid systems available:
• DD1200E315N/L (HD200 external in NG or LPG)
• DD1200i315N/L (HDi200 internal in NG or LPG)
• DD1212E315N/L (EF250 external in NG or LPG)
• DD1212i315N/L (EFi250 internal in NG or LPG)
• DD1250E315N/L (HD250 external in NG or LPG)

For smaller commercial (small motels) or larger residential applications where a large quantity of hot water is required quickly, but there is recovery time available before next use. For example filling a machine or filling a spa bath.

Hard or aggressive water will need to be treated in order to use this system. If in doubt please test before use.

Not suitable or approved as a pool heater.

For commercial applications the water heating system must be sized and installed to written guidelines from Rinnai.

Input

195-249 MJ/h

Output

44.5-57.8 kW


Gas

DN20 ¾ " BSP male

Cold water inlet

DN32 1¼ " BSP female

Hot water outlet

DN32 1¼ " BSP female

Hot water return

DN32 1¼ " BSP female (not used)

Condensate  DN15 ½ " (EF models only)
TPR

DN20 ¾ " BSP female

850 kPa, 99 °C, 46 kW

Electricity 230 V AC GPO
ECV 700 kPa (not supplied)
PLV 500 kPa (not supplied)

Hot water delivery DD1200E315 & DD1200i315


Raised 25 °C = 1500 L/h

Raised 35  °C = 1250 L/h

Raised 45  °C = 950 L/h

Raised 50  °C = 875 L/h

Raised 55  °C = 800 L/h

Hot water delivery DD1212E315, DD1212i315 & DD1250E315 

Raised 25 °C = 1700 L/h

Raised 35  °C = 1400 L/h

Raised 45  °C = 1200 L/h

Raised 50  °C = 1100 L/h

Raised 55  °C = 1000 L/h

Ingress protection rating IPX4 (cylinder, control box and Rinnai INFINITY)
System configuration

Thermostat pump on 60 °C

Thermostat pump off 65 °C

INFINITY setting 75 °C

Max. outlet water temperature 75 °C

Market release

Top down heating released June 2019 (superseding previous bottom up heating system

DD1200E315 dimensions


DD1200E315 dimensions diagram


DD1200i315 dimensions


DD1200i315 dimensions diagram


DD1212E315 dimensions


DD1212E315 dimensions diagram


DD1212i315 dimensions


DD1212i315 dimensions diagram


DD1250E315 dimensions


DD1250E315 dimensions diagram


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At Rinnai NZ,  adding a touch of magic to life’s daily pleasures is what we are all about so that people can get on with the more complicated challenges in life.  Rinnai makes daily routines, like taking a hot shower or heating your home, simple, enjoyable and stress-free.  

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