Warning: Follow each appliance's instructions precisely. Installation and service must be performed by a trained and certified installer, service agency or the gas supplier. Application drawings in this manual are conceptual only and do not purport to address all design, installation, code, or safety considerations. The diagrams in this manual are for reference use by code officials, designers and licensed installers.
2 || Infiniti™ Infiniti® KK 160-199 160-199 Application ApplicationManual Manual This Page is Intentionally Blank Data Datasubject subjectto tochange change 10.2018 10.
3 | Infiniti™ KK 160-199 Infiniti® 160-199 Application Manual Table of Contents TABLE OF CONTENTS 1 KEY TO SYMBOLS AND SAFETY INSTRUCTIONS 4 1.1 Key to symbols 4 1.2 Safety 4 2 INTRODUCTION 5 3 WATER HEATER SIZING AND SPECIFICATIONS 6 3.1 Sizing tankless water heaters 6 3.2 Tankless water heater accessories 7 3.3 Tankless water heater specifications 8 APPLICATIONS 9 4.1 Single Infiniti® K Installation 9 4.2 Pump sizing for circulation 10 4.2.
4 1 1.1 || Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual KEY TO SYMBOLS AND SAFETY INSTRUCTIONS KEY TO SYMBOLS WARNINGS 1.2 SAFETY PLEASE READ SAFETY PRECAUTIONS BEFORE INSTALLATION. WARNING: WARNING: Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
5 2 || Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual INTRODUCTION This Applications Manual is intended to present some of the most common applications of the Infiniti® K Series tankless water heaters. Application drawings are shown with both piping and corresponding electrical schematics where applicable. Auxiliary equipment depicted does not necessarily represent any one manufacturer or specific model number.
6 || 3 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual WATER HEATER SIZING AND SPECIFICATIONS This section describes the Infiniti® K water heaters from Bradford White Corporation and provides a general overview to the specification sheets and model. More detailed information is contained in the installation manuals. ME WA MT VT ND MN OR Download manuals at www.bradfordwhite.com.
7 || Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual Inlet temperature (°F) MODEL 77° 72° 67° 62° 57° 52° 47° 42° 37° 9.3 GPM 8.3 GPM 7.5 GPM 6.9 GPM 6.3 GPM 5.9 GPM 5.5 GPM 5.1 GPM 4.8 GPM 7.5 GPM 6.7 GPM 6.1 GPM 5.6 GPM 5.1 GPM 4.8 GPM 4.4 GPM 4.1 GPM 3.9 GPM Infiniti® K 199 Infiniti® K 160 Table 1: Maximum hot water flow rate at 120°F set point temperature Showerhead – 2 GPM Sink faucet – 1 GPM 3.
8 || 3.3 Infiniti™ K 160-199 Infiniti® K 160-199 Application Application Manual Manual TANKLESS WATER HEATER SPECIFICATIONS DESCRIPTION UNIT RTG-K-160 RTG-K-199 BTU/hr (kW) BTU/hr (kW) BTU/hr (kW) % GPM (l/min) GPM (l/min) GPM (l/min) GPM (l/min) GPM (l/min) 160,000 (46.64) 9,000 (2.6) 57,608 (46.2) > 99% 9.0 (34) 7.0 (26.7) 5.8 (21.9) 4.2 (15.9) 3.5 (13.2) 199,000 (58.3) 9,000 (2.6) 1 197,010 (57.7) > 99% 11.2 (42.4) 8.7 (27.7.9) 7.2 (27.5) 5.2 (19.7) 4.4 (16.
9 4 4.1 || Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual APPLICATIONS SINGLE INFINITI®® K INSTALLATION 1) as required by local code DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or required. All work pertaining to the installation shall be in full compliance with all legal requirements, including national and local codes.
10 || 4.2 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual PUMP SIZING FOR CIRCULATION The following section outlines pump sizing for domestic hot water recirculation and tank loading. Only models approved for such applications are listed in this section. • Size the pump according to the pressure drop curve of your Infiniti® K model (fig. 1 below) and the loop pressure drop tables.
| Infiniti® K 160-199 4.2.1 EXTERNAL RECIRCULATION PUMP SELECTION 4.2.1 EXTERNAL RECIRCULATION PUMP SELECTION Data subject to change Application Manual 10.
| Infiniti® K 160-199 Data subject to change Application Manual 10.
| Infiniti® K 160-199 Application Manual 4.2.
11 || 14 4.3 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual DOMESTIC HOT WATER CIRCULATION System conditions vary and each pump must be sized by a professional to insure performance. RECIRCULATION LOOP PRESSURE DROP AT 2GPM (FEET OF HEAD) Material Refer to pump manufacturers flow vs pressure specifications to select a pump that can provide adequate flow while overcoming the pressure loss through the Infiniti® K and the recirculation loop.
12 || 15 4.3.1 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual SINGLE INFINITI®® K WITH DOMESTIC HOT WATER RECIRCULATION INSTALLATION 1) as required by local code EXTERNAL RECIRCULATION PUMP • Max pump amp draw: 5 amps • Recirc temperature differential is defined by using built-in tankless controller • Pump is powered only when inlet temperature sensor is less than the setpoint temperature of the unit by a fixed differential • See Section 4.3.
13 || 16 Infiniti™ K 160-199 160-199 Infiniti® K 4.3.2 Application Application Manual Manual DOMESTIC HOT WATER RECIRCULATION WITH EXTERNAL PUMP The following drawing is provided to outline one possible recirculation design. This schematic is for illustration only and must not be used for actual installation without appropriate engineering and technical advice from a properly licensed professional in the locality where the installation is made. Fig. 30 Fig.
14 17 || 4.4 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual TANK LOADING Tank loading pairs tankless water heaters with storage tanks to maximize peak flow for high demand applications. A tank load system, because of the added storage, can provide a high peak flow with fewer tankless units and lower installed cost. Tank loading is recommend for high cycle applications such as commercial kitchens with hand sprayers.
15 || 18 Infiniti™ K 160-199 160-199 Infiniti® K 4.4.1 Application Application Manual Manual SINGLE INFINITI®® K TANK LOADING INSTALLATION 1) as required by local code RECOMMENDED PUMP Manufacturer Grundfos Model UP 26-99 SF Taco 0013 SF3 B&G PL-36B Table 7 DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or required.
16 19 || Infiniti™ K 160-199 160-199 Infiniti® K 4.4.2 Application Application Manual Manual SINGLE INFINITI®® K TANK LOADING WITH RECIRCULATION INSTALLATION IMAGE TO COME 1) as required by local code RECOMMENDED PUMP Manufacturer Grundfos Model UP 26-99 SF Taco 0013 SF3 B&G PL-36 Table 7 DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or required.
17 || 20 4.4.3 Infiniti™ K 160-199 160-199 Infiniti® K Application Manual Application Manual MULTIPLE INFINITI®® K TANK LOADING INSTALLATION 1) as required by local code DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or required. All work pertaining to the installation shall be in full compliance with all legal requirements, including national and local codes.
18 21 || 4.4.4 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual MULTIPLE INFINITI®® K TANK LOADING WITH CIRCULATION INSTALLATION 1) as required by local code DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or required. All work pertaining to the installation shall be in full compliance with all legal requirements, including national and local codes.
19 || 22 Infiniti™ K 160-199 160-199 Infiniti® K Application Application Manual Manual 4.5 SPACE HEATING 4.5.1 SINGLE INFINITI®® K WITH HYDRONIC AIR HANDLER INSTALLATION Recirculation pump may be external to the air handler, varies by manufacturer. To minimize heat loss and reduce head loss, it is recommended to keep pipe run between tankless and air handler to a minimum. Ensure circulator is sized properly in order to provide the air handlers BTU/Hr output as required for your application.
| Infiniti® K 160-199 Application Manual This Page is Intentionally Blank Data subject to change 10.
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