Rinnai REU-VRM1120WD-E Infinity 11e User manual

Service
Manual
Continuous Flow Water Heater
Important.
Read these instructions carefully before attempting installation or use of
this appliance. All work must be carried out by competent persons.

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June 2010—Issue 1
This manual is intended for use by Gas Safe
Regisetred Engineers

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CONTENTS
Glossary of terms and Symbols…………..………..…….…………………………..….5
1. Introduction …………………….………...……...………………….……………6
2. Specification ……………….…………..….…..………………….………………7
3. Water Flow Rates and Pressures …………..…..……………………………...… 9
4. Dimensions …………………………………...…...……………………………10
5. Remote Controls……………………………….………………...…………….....11
6. Cutaway Diagram……………………………….……………………………......14
7. Operational Flow Chart……………………….……………………………….….16
8. Main Components……………………………….…….…………………………..17
9. Wiring Diagram………………………………………..……………………….....19
10. Dip Switch Setting……………………………………..……………………...…..20
11. Error Codes……………………………………………………………………..….21
12. Diagnostic Points………………………...…..…………………………..….…..…22
13. Gas Pressure Setting…………………………..……...…………….……..……….23
14. Servicing………..……………………….….………………………….……….….25
15. Spares List………………………………………………………………………….28
16. Warranty….………………………………..………………………….………..….35
17. Contact ….…………………………………..……………………………………..36

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Glossary of Terms and Symbols

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Introduction

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Specification

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Specification

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Water Flow Rates and Pressures

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Dimensions

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Remote Controls

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TEMPERATURE CONTROLS - OPERATING
Using 2 or more Universal Temperature Controllers.
Switching the system ON.
The hot water system and all controllers can be switched ON
and OFF from any controller by pressing the ON/OFF button as
shown. When the system is turned ON the water temperature
display will be lit.
During normal operation the system is left ON. Do not push the
ON/OFF button when water is running.
Using hot water.
Ensure the system is switched On by verifying the temperature
display is lit. Ensure the local controller has priority by verifying
the Transfer LED indicator is lit. If it is not then press the
Transfer button once. This gives the local controller priority of
temperature over the system.
Select the desired temperature using the Hot water temp.
buttons. The selected temperature will be displayed on all
controller displays. This is the water temperature which will be
supplied from the heater.
Bathroom temperatures
should be no more than 50°C.
Open the hot water tap. The
appliance will be activated and
the In Use indicator will be lit.
Using 4 Universal Temperature Controllers.
You will need to activate the fourth controller.
STEP 1: On the Master controller press and hold the
Transfer and ON/OFF buttons simultaneously (see Fig. 2)
until a “beep” is heard (approx. 5 seconds).
STEP 2: Check that the display on all Four controllers is
lit and displaying a temperature when switched on. If any
ONE of the controllers displays two dashes (see Fig. 1) in
the display repeat STEP 1.
If the master controller is replaced, repeat
STEP 1 above for the new controller.
NOTE
Fig. 1
Fig. 2

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Do not push the ON/OFF button on the
Master controller after transferring priority
of temperature selection to a Secondary
controller as the system will shut down.
Do Not Turn OFF the Master Controller
Temperature priority cannot be switched
to another controller when the water is
flowing through the water heater.
Depending on the weather conditions
and the length of the pipe between the
heater and the tap in use, there may be a
variation between the temperature
displayed at the controller and the
temperature at the tap.
Do not clean the control with
solvents or detergents. Use only a soft
damp cloth.
TEMPERATURE CONTROLS - INFORMATION
If a temperature over 50°C
has been selected on a
controller and priority of
temperature selection is
transferred to another
controller, then back again,
the temperature on the
controller will automatically
drop to 50ºC. If the set
point is 50°C or less it will
not alter. This is a safety
feature.
Controller 1
in use
Controller 2
cannot take
priority
S
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Kitchen Kitchen
Bathroom
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Cutaway Diagram
.

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Cutaway Diagram
.

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Operational Flow Chart

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Main Components
.

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Main Components

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Wiring Diagrams

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Dip Switch Settings