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Rinnai Demand Duo Programming Manual
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Rinnai Demand Duo Programming Manual

Commercial controller
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Programming setup for the following Rinnai commercial systems:
•
Demand Rapid with one INFINITY and a single pump
•
Demand Duo (DD400-1000) with a single pump
•
Demand Duo (DD400-1000) with two pumps
•
Demand Duo (DD400-1000) in a circulating ring main system with two pumps
Demand Duo commercial controller (DDSTAT234)
Programming guide

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Summary of Contents for Rinnai Demand Duo

  • Page 1 Demand Rapid with one INFINITY and a single pump • Demand Duo (DD400-1000) with a single pump • Demand Duo (DD400-1000) with two pumps • Demand Duo (DD400-1000) in a circulating ring main system with two pumps Demand Duo commercial controller (DDSTAT234) Programming guide...

  • Page 2: Installation

    Important Rinnai is constantly improving its products, and as such, information and specifications are subject to change without notice. For the most up-to-date information, go to www.rinnai.co.nz Installation This controller must be installed in accordance with: Manufacturer’s instructions Current AS/NZS 3000 Wiring Rules Installation, servicing and repair shall be carried out only by authorised personnel.

  • Page 3: Quick Start Programming

    To view and set up the system, further detail on p.6 3. Service mode To view and set up how the pump operates, further detail on p.10 Bold = standard settings DEMAND RAPID, DEMAND DUO SINGLE PUMP AND DEMAND DUO DUAL PUMP Controller Access code Programming sequence Additional...
  • Page 4 ‘tank set temperature ’ and the ‘tank low limit temperature ’ the controller will switch on the pump(s) and circulate water from the tank through the Rinnai INFINITY water heater and back to the tank. The DDSTAT is configured with: •...
  • Page 5 Change the low limit temperature TANK LOW LIMIT Default is 60 °C, 5 °C less than the tank TEMPERATURE set temperature. To change use buttons 4 ACCEPT and 5, and press ACCEPT (button 2). Rinnai DDSTAT controller programming guide: 12697-C 03-20 | 5...
  • Page 6 DDSTAT with one or two pumps (p.7-8) Used with Demand Duo systems and operates by measuring the temperature of the water in the tank. If the water temperature falls below the tank set temperature and the tank low limit temperature, the controller will switch on the pump(s) to circulate water through the system.

  • Page 7: Advanced Setup

    Programming - DD400-1000 single pump To set the Demand Duo system for a single pump ensure you have selected the DDSTAT mode by following the instructions on the previous page. Select DD2 + 1P SELECT VERSION You can cycle through the system configurations using button 5 (the up arrow).
  • Page 8 Programming - DD400-1000 dual pump To set the Demand Duo system for two pumps ensure you have selected the DDSTAT mode by following the instructions on p.6. Select DD2 + 2P SELECT VERSION You can cycle through the system configurations using button 5 (the up arrow).
  • Page 9 Programming - circulating ring main To set the Demand Duo as a circulating system ensure you have selected the DDPCDEL mode by following the instructions on p.6 (hold button 2 then press 5 >4>5>5 in quick succession). Demand Duo with a ring main...
  • Page 10 This mode is accessed if setting up the system and controller for applications that may experience high winds, where the Rinnai INFINITY commercial units could lock out on occasion due to the wind stopping ignition or an interruption to the gas supply. Setting up the system to automatically restart/reset could avoid costly service callouts.

  • Page 11: Advanced Setup Screens

    DDSOLAR - Hot (panel) temp. TEMP 1 ACTIVE ACTIVE NEUTRAL NEUTRAL PUMP 1 PUMP 2 DDTSTAT - Tank temp. DDPCDEL - Outlet temp. Serial Barcode DDSOLAR - Cold (tank) temp. label label Rinnai power board Rinnai DDSTAT controller programming guide: 12697-C 03-20 | 11...
  • Page 12 Rinnai.co.nz Rinnai New Zealand Limited 105 Pavilion Drive Mangere, Auckland 2022 PO. Box 53177 Auckland Airport Auckland 2150 Tel: 0800 746 624 http://www.youtube.com/rinnainz DDSTAT controller programming guide: 12697-C http://facebook.com.rinnainz...

This manual is also suitable for:

Ddstat234