Rinnai 37AHA09016KA5 User Manual

37AHA SERIES
HYDRONIC AIR HANDLER
SIZES 045 THRU 090
Installation, Operation, and Maintenance Manual
Quality Assurance
This product is manufactured in a
facility registered by UL to ISO 9001.
File No. A6887.
UL recognized
component
Consumer Safety Information................................ 2
Overview of the Rinnai Hydronic Air Handler........ 3
Model Number Nomenclature ............................... 3
Physical Data......................................................... 4
Receiving & Checking Equipment......................... 5
Installation
Clearances .................................................... 5
Locating and Mounting............................... 6-9
Plumbing................................................. 10-13
Electrical Connections............................ 14-16
Dip Switch Options...................................... 17
Thermostat Installation........................... 17-18
Start-Up Procedure ..................................... 19
Troubleshooting...................................... 20-23
Sequence of Operation ..................................24-26
Maintenance.................................................. 26, 27
Selection Guide ............................................. 27, 28
Specifications ...................................................... 29
Air Delivery Performance .................................... 30
Accessories ......................................................... 31
Hydronic Air Handler Output .......................... 32-34
Wiring Diagrams............................................. 35-37
Parts List......................................................... 38-39
Limited Warranty ............................................ 40-41
2100-500
To register your hydronic air handler or tankless water heater,
please visit www.rinnairegistration.com
.

Rinnai 37AHA09016KA5 Specifications

General

Model Number	37AHA09016KA5
Fuel Type	Natural Gas
Ignition Type	Electronic
Type	Tankless Water Heater
Flow Rate	9.0 GPM

Summary

Consumer Safety Information

SAFETY DEFINITIONS

Explains signal words like DANGER, WARNING, CAUTION, NOTICE.

SAFETY CONSIDERATIONS

Lists precautions before starting work, such as wearing protective gear.

Installation

Receiving and Checking Equipment

LOCATING AND MOUNTING THE HYDRONIC AIR HANDLER

Guidelines for positioning and securing the unit.

AIR DISTRIBUTION SYSTEM

PLUMBING

Covers codes, pipe sizing, insulation, and thermal expansion.

Piping Configuration

PURGING AND PRIMING THE SYSTEM

Step-by-step guide to fill and remove air from the system.

ELECTRICAL CONNECTIONS

Instructions for making electrical hookups.

System Low Voltage Wiring Diagrams

Dip Switch Options (Smart Operating System)

Configuration options for unit operation via dip switches.

THERMOSTAT INSTALLATION

Guidelines for mounting and wiring thermostats.

THERMOSTAT WIRING DIAGRAMS

Visual guides for thermostat wiring configurations.

Shunt Jumper Options

START-UP PROCEDURE (HEATING ONLY)

Steps for initiating heating operation.

START-UP PROCEDURE (COOLING SYSTEM)

Steps for initiating cooling system operation.

TROUBLESHOOTING BLOWER AND/OR PUMP MOTOR AND CONTROLS

Guides for diagnosing motor and control issues.

Sequence of Operation

COOLING MODE

Explains how the unit operates during cooling demands.

HEATING MODE

Maintenance

CLEANING

INTEGRAL CIRCULATOR PUMP

Selection Guide

Hydronic Air Handler and Tankless Water Heater Sizing Guidelines

Steps for selecting the correct unit size based on needs.

SELECTION PROCEDURE (WITH EXAMPLE)

Detailed steps with an example for unit selection.

Limited Warranty

Warranty Information

What is covered?

How do I get service?

What is not covered?