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Summary of Contents for Rinnai INFINITY NB Series
- Page 1 MODELS: NB56kWe external (REU-NB3237WC-ZK) NB56kWi internal (REU-NB3237FFC-ZK) INFINITY NB-Series continuous flow water heaters Installation guide...
- Page 2 Warning Improper installation, adjustment, alteration, service and maintenance can cause property damage, personal injury or loss of life. For more information about buying, using, and servicing of Rinnai appliances call: 0800 RINNAI (0800 746 624). Rinnai New Zealand Limited 105 Pavilion Drive, Mangere, Auckland...
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Page 3: Table Of Contents
Get an overview of the steps required before starting the installation. Failure to follow these instructions could cause a malfunction of the appliance. This could result in serious injury and property damage. • These instructions apply only to the Rinnai NB-Series continuous flow water heater models listed on the cover page of this guide. -
Page 4: Specification
Specification Designed and made in Japan, the Rinnai INFINITY NB-Series are condensing continuous flow gas hot water heaters with inbuilt frost protection. They have electronic ignition and require electricity to operate. The internal unit is a room sealed appliance. The INFINITY NB-Series units are factory preset to 50 °C. They can be preset to deliver higher temperatures, up to 85 °C, making them ideal for commercial applications. -
Page 5: Appliance Location
Provision must be made for safe disposal of any leaking water to an external location. This appliance MUST BE used with the appropriate Rinnai flue system. Rinnai recommend a maximum pipe run of 10 m. Power point can be within the pipe cover if a pipe cover is installed—must comply with AS/NZS Wiring rules... -
Page 6: General Installation Information
The outdoor vent cap is installed on top of the water heater. Securing the Rinnai INFINITY The wall structure on which the units are mounted MUST BE capable of supporting the weight of the appliance (25 / 27 kg) and associated pipe work. - Page 7 The water heaters will operate at lower pressures but will not achieve the rated flow. Contact Rinnai for gravity fed or low pressure installations. Water chemistry and impurity limits are detailed in the operation guide within the warranty section.
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Page 8: Water Delivery Temperature
Water delivery temperature Rinnai INFINITY units installed without controllers Diagram 1: Appliance set internally to 50 °C Ensuite 50 °C Laundry Bathroom Kitchen Minimum length of pipe from hot outlet to nearest sanitary fixture for personal hygiene - two metres. -
Page 9: Connections And Fittings
Connections and fittings Cond. Cond. Cold Cold Condensate connection Hot water connection From centreline 181 mm From centreline 130 mm From wall 135 mm From wall 158 mm From bottom of unit 34.7 mm From bottom of unit 41.2 mm Cold water connection Gas connection From centreline... -
Page 10: Dimensions
Dimensions - NB56kWe (external) 47.5 10 |... - Page 11 Dimensions - NB56kWi (internal) 47.5 | 11...
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Page 12: Condensate
As condensate is a by-product of gas combustion it is mildly acidic. For this reason copper tube MUST NOT be used as it will corrode. Instead Rinnai recommend plastic pipes and fittings. - Page 13 Interconnection of condensate drain lines Condensate drain lines from multiple water heaters may be joined together provided they conform with the requirements detailed on the previous page. Common stack discharge Where individual water heaters are installed in a multi-storey building, the condensate drain lines may discharge into a common stack, subject to the following: •...
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Page 14: Commissioning
It is the installer’s responsibility to do this. If the appliance can not be adjusted to perform correctly call 0800 RINNAI (0800 746 624) for assistance. The appliance operation must be tested after installation. Ensure the building occupants do not have access to the hot water outlets during this procedure. - Page 15 The controller displays ‘In’ (indoor). If installed indoors press the on/off button to confirm. If not use the up or down button to go to the next setting—Out. The controller displays ‘Out’ (outdoor). If installed outdoors (with the vent cap) press the on/off button to confirm.
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Page 16: Pcb Interface And Functions
PCB interface and functions Rinnai NB-Series water heaters are fitted with a mounted controller that is connected by a dedicated wiring harness to the PCB. The controller cannot be removed or relocated externally. When the water heater is placed into programming mode the controller becomes the programming interface. -
Page 17: Water Controller Installation
Other manufacturers water controllers are NOT compatible with Rinnai water heaters. Water controllers MUST NOT be used with any solar boost water heater. Rinnai water controllers bought in from other countries are not compatible with Rinnai appliances sold in New Zealand. - Page 18 Wired water controllers operate at an extra low voltage (12 V DC), which is supplied from the water heater. A 10 m long communication cable is supplied for connection to the water heater. Only Rinnai supplied communication cables may be used. Connecting communication cables to the mini-plug...
- Page 19 Connecting communication cables to the PCB Cable access Plastic safety cover Accessory port socket Accessory port socket | 19...
- Page 20 ◎ U362-1804 (00) REU-NB3237(NZ) Rinnai.co.nz 07000012333960 Tel: 0800 746 624 http://www.youtube.com/rinnainz http://facebook/com.rinnainz Rinnai INFINITY NB-Series installation guide 1-25 Installation guide...
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