California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm. This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself.

Table of Contents

Specifications

3

Consumer Safety Information

 

 

Safety Definitions

4

Safety Behaviors and Practices

4

Safety Features

4

Description of Operation

4

Operating Instructions

 

 

How to Set the Temperature

5

Setting the Sound Volume (Voice Prompt)

5

Temperature Controller Settings

6

Temperature Options Without

 

 

a Temperature Controller

6

Using the Water Smart / Bath Fill Function

7

Overview

7

Setting the Water Volume

7

Filling the Tub

8

Setting Controller to Mute

8

Setting the Clock

8

Maintenance

 

 

Cleaning

9

Vent System (RV53i)

9

Air Intake and Exhaust (RV53e)

9

Motors

9

Temperature Controller

9

Lime / Scale Build-up

9

Snow Accumulation

9

Visual Inspection of Flame

9

Error Codes

 

 

Front Panel Display Indication

10

Error Code Table

10,11

Trouble Shooting for Common Issues

12

Accessing Operating Information

12

Water Quality

12

Flushing the Heat Exchanger

 

 

(Error Code: LC or 00)

13

Installation Instructions

14

General Instructions

14

Clearances from Appliance

15

Attachment of the Water Heater

15

Electrical Connection

16

Gas Piping

16

General Instructions

16

Pipe Sizing Procedure - Example

17

Water Piping

 

 

Isolation Valves and

 

 

Pressure Relief Valves

18

General Instructions

19

Pressure Relief Valve

19

Freeze Protection

19

Freeze Protection Methods

20

Manual draining of the water heater

20

Running a low volume of water through

the water heater to prevent freezing

20

When the water heater or external

 

piping has frozen

20

Freeze Protection Piping

21

Error Indication or Air Handler

 

Control Switch (RV53i)

22

Recommended Piping for Basic Installation.. 22

Recommended Piping for

 

Circulation Systems

23

Venting Instructions (RV53i)

 

Intake / Exhaust Guidelines

24

Condensate

24

Maximum Vent Length

25

Vent Products

25

Flue Installation - Concentric Venting (RV53i)26

Flue Terminal Clearances

 

(ANS Z21.10.3, CSA 4.3)

27

Additional Clearances

28

Connecting Multiple Water Heaters

29

Guidelines

29

High Altitude Installations

29, 30

Temperature Controller Installation

 

Location

31

Configurations

31

Cable Lengths and Size

31

Mounting the Controller (RV53i)

32

Mounting the Controller (RV53e)

33

Operating Instructions

34

Technical Data

 

Pressure Drop Curve

35

Outlet Flow Data

35

Space Heating

36

Dimensions

37

Ladder Diagrams

38

Consumer Support

 

Warranty Information

39

Limited Warranty

39, 40

State Regulations

41

French Version

42-59

2

RV53i & RV53e Operation and Installation Manual

Page 2
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Rinnai RV53E, RV53I installation manual Table of Contents