Rinnai RIB2312 L User manual

SERVICE MANUAL
Sapphire - RIB2312
GAS LOG FLAME FIRE

Intentionally Blank

All Rinnai products are certified by the
Australian Gas Association as compliant
to relevant Australian Standards.
Rinnai New Zealand has been certified to
ISO 9001 Quality Assurance by Telarc.
All Rinnai products carry the “C Tick”
symbol. This signifies compliance with
the Electromagnetic Compatibility (EMC)
requirements of the Australian
Communications Authority (ACA) which
aim to minimise electromagnetic
interference.
Rinnai Australia Supplier Code N10378.

© Copyright Rinnai Australia Pty Ltd
A.C.N. 005 138 769 A.B.N. 74 005 138 769
All rights reserved
Produced by Technical Services Department
2017 - Issue 1
No portion or part of this manual may be copied without prior permission from Rinnai
Australia.
Rinnai Australia takes no responsibility for the accuracy or otherwise of information
contained in
this manual, and reserves the right to make modifications and change specifications without
notice.
Key to Warning Symbols
Failure to comply with the following instructions may result in serious
personal injury or damage to the appliance.
Be careful of possible electric shock. Wiring inside this appliance may
potentially be at 240 Volts.
Read Fault Diagnosis and Wiring Diagram carefully to avoid incorrect
wiring
This manual has been compiled by Rinnai Australia Engineering & Technical Department.
While many individuals have contributed to this publication, it will be successful only if you
- the reader and customer - find it useful. We would like to extend an invitation to users of
this manual to make contact with us, as your feedback and suggestions are valuable
resources for us to include as improvements. Rinnai are constantly working toward
supplying improved appliances as well as information, and specifications may be subject to
alteration at any time.
RIB2312 Sapphire Gas Log Flame Fire
Issue No1
Please follow instructions carefully to ensure safe and appropriate service.
After completing the service and confirming that there no gas leaks or incorrect wiring,
test operation of unit according to the Customer Operating Instructions. After confirming
normal operation, explain what was serviced to the customer and operation principles if
necessary.

RIB2312 Sapphire Gas Log Flame Fire - i - 1/03/18 ©Rinnai
Table of Contents
Introduction ...................................................................................................... 1
Specifications .................................................................................................. 3
Dimensions ...................................................................................................... 5
Schematic Diagram ......................................................................................... 6
Operation Principles ........................................................................................ 7
Fault Analysis .................................................................................................. 8
Fault Finding .................................................................................................. 10
Commissioning the Appliance ....................................................................... 11
Dismantling for Servicing ............................................................................... 14
Wiring Diagram .............................................................................................. 21
Spare Parts List and Exploded Diagrams ..................................................... 22

RIB2312 Sapphire Gas Log Flame Fire - 1 - 1/03/18 ©Rinnai
Introduction
GENERAL DESCRIPTION
Your Sapphire Model RIB2312 is a burning log effect, gas space heating appliances with natural draft
combustion system, intended for use with Natural Gas, Propane or ULPG. The Burning log effect is
achieved using one single main burner with strategically placed, 'life like', imitation logs and granules.
Temperature control is achieved by pressing the up or down markedarrows on the manual control switch
or via a cordless wall mounted remote control thermostat / timer.
This heater has an electronic ignition with intermittent pilot. The pilot is only on when the heater is in
operation.
Burner, logs and granules are contained in a glass fronted, sealed burner box.
Combustion air is drawn from the room. Combustion product is exhausted via the flue discharge vent
when installed in a masonry chimney or when installed in a zero clearance box or as a stand alone unit
through a 100mmøx 150mmøtwin skinned flue to the outside of the house.
This appliance is modular and primarily consists of an 'Engine' that is utilized in any of the 3 configuration
types as listed below.
1. Fireplace / Masonry - Engine:
The appliance is directly mounted into an existing masonry fire place or a non-combustible/masonry
enclosure that has a chimney. When installed correctly the appliance is a flush to wall mount.
2. Zero Clearance:
The appliance is fitted within a zero clearance box then inserted into a wall or other suitable structure.
Materials need not be non-combustible. When installed correctly the appliance is a flush to wall
mount.
3. Freestanding Plinth or Console appliance:
The appliance is housed in a decorative fabricated sheet metal box that is intended to be
freestanding and not inbuilt.
MASONRY
PLINTH
ZERO
CLEARANCE
CONSOLE
Note: Standard model
fascia shown for
illustrative purposes

RIB2312 Sapphire Gas Log Flame Fire - 2 - 1/03/18 ©Rinnai
Glossary of Terms and Symbols
This glossary of terms and symbols is provided to assist you in understanding some of the language used
throughout this manual.
dB(A) - sound pressure level in decibels, “A” range
DC - direct current
AC - alternating current
Hz - Hertz
IC - integrated circuit
kcal/h - kilocalorie per hour
kPa - kilopascals
LED - light emitting diode
mA - milliamps
MJ/h - megajoule per hour
mm - millimetres
OHS - overheat switch
PCB - printed circuit board
CPU - central processing unit
POT - potentiometer
rpm - revolutions per minute
SV - solenoid valve
ø - diameter
C-temperature rise above ambient
POV - modulating valve
TH - thermistor



RIB2312 Sapphire Gas Log Flame Fire - 3 - 1/03/18 ©Rinnai
Specifications
General Product Specification
Model RIB2312 N (Natural Gas)
RIB2312 L (Propane)
Model Name Sapphire Gas Log Flame Fire
Features Inbuilt or Freestanding Gas Space Heater
Burning log effect
Glass front
Convection Fan, top warm air outlet
Glass dress guard (standard model)
Mesh dress guard (classic model)
Installation Inbuilt Masonry, Inbuilt Zero Clearance and Freestanding
options
Combustion Method Bunsen type burner
Flue - Masonry (if required)
Flue - Freestanding & zero clearance FlexiLiner diameter. 100 mm Twin skinned diameter. 100mm x diameter. 150mm outer
Convection Fan Double drum. 160mm x 180mm - 2 speed - Centrifugal
Gas connection G 1/2” flared male
Gas type NG, Propane Universal LPG
Ignition Continuous Spark Electronic Ignition
Input / Output Refer data plate and energy rating label on appliance
Power Consumption High 50 W, Standby < 3.0 W
1500 mm cord is supplied with a 3 pin plug
Safety Devices Overheat Switch
Electrical Fuse
Flame Failure Sensing System (FFD)
Power Failure Protection
Gas Lock-out (1 minute after attempted restart)
Temperature Control (if fitted) Thermostatic, temperature control range 7 - 32°C
Glass - Primary
Glass - Secondary
Glass seal material
Ceramic Glass
Tempered Glass
Woven fibreglass chord - Hytex® 1000 by mid Mountain
USA
Weight (Engine Only) 60 Kg - “uncrated” - no Flue
Operation Push button control panel or via optional wireless remote/
thermostatic control
For other appliance specifications refer to appliance data plate.
NOTE

RIB2312 Sapphire Gas Log Flame Fire - 4 - 1/03/18 ©Rinnai
Technical Specifications
Item Description
Natural Gas Propane ULPG
Gas Input High 30.0 MJ/h 25.0 MJ/h
Low 16.5 MJ/h 13.5 MJ/h
kW Output 6.97 kW 5.63 kW
Appliance Inlet Pressure 1.13kPa 2.75kPa 2.75 kPa
ATPP Burner
pressure
High 0.71kPa 2.25kPa 1.70 kPa
Low 0.15KPa 0.50kPa 0.50 kPa
Main Burner Injector Ø
2.80mm
(Threaded Hex
Brass)
1.55mm (Threaded Hex Brass)
Pilot injector Ø (SIT pilot number) # 62 #35
Gas Control Rinnai Universal Control
Ignition module assembly Rinnai Ignitor E1-0218
Gas Connection 1/2” BSPT Male brass fitting.
Pilot assembly Pilot – SIT 190 series
Internal gas piping Pilot - 6mmØ x 1.0mm aluminium
Burner - 8mmØ x 1.0mm aluminium
Remote control IR remote control
Weight, (Engine only) 60kgs
Convection Fan Double Ø160mm x 180mm - 2 speed - Centrifugal
Glass – Primary Ceramic Glass
Glass – Secondary (Dress Guard) Tempered Glass
Glass seal material Woven fibreglass chord – Hytex
®
1000 by Mid Mountain
USA
Electrical connection – cord 230-240V 50Hz 7.5Amps 3pin plug + ~1.5m Lead. Cert
#18070
Power Consumption Less than 50W Normal Operation. Less than 3W on
Standby.
Fuse 3Amp 250V glass fuse
Temperature range 7°C -32°C
Decibel level Hi ~ Lo=45 ~ 37dB(A
Flue – Masonry. (If required) Flexi Liner Ø100mm
Flue – Freestanding & Zero
Clearance
Twin skinned Ø100mm x Ø150mm outer
AGA #4198

RIB2312 Sapphire Gas Log Flame Fire - 5 - 1/03/18 ©Rinnai
Dimensions
Note: All dimensions are in millimetres
MODEL External Dimensions - Flue Centre Gas Connection
ABCDEFGH I J
Masonry Standard 865mm 660mm 359mm 62mm 691mm 589mm - 305mm 45mm 235mm
Classic 865mm 701mm 359mm 76mm 691mm 589mm - 305mm 45mm 235mm
Zero Clearance Standard 865mm 660mm 363mm 62mm 795mm 650mm 280mm 305mm 45mm 240mm
Classic 865mm 701mm 363mm 76mm 795mm 650mm 280mm 305mm 45mm 240mm
Console 865mm 760mm 363mm 62mm 865mm 760mm 280mm 305mm 144mm 235mm
Plinth 865mm 837mm 363mm 62mm 865mm 837mm 280mm 305mm 219mm 235mm
A
MASONRY ZERO CLEARANCE
PLINTHCONSOLE
A
AA
EE
E
E
BBFF
BB
G
G
G
C
D
C
D
CD CD
FF
H H
HH
II
I
I
J J
JJ

RIB2311/RIB2312 Sapphire Gas Log Flame Fire - 6 - 1/03/18 ©Rinnai
Schematic Diagram

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Operation Principles
(refer to separate Customer Operation/Installation manual - section ‘About your Heater - page 7)

RIB2312 Sapphire Gas Log Flame Fire - 8 - 1/03/18 ©Rinnai
Fault Analysis
Fault Analysis
Symptom Cause Check
Burner will not light No power present Ensure power cord is plugged into Power Supply
AC216 ~ 264V and turned on
Check that 3A fuse in harness is OK (<1)
Check that power is supplied to control panel
Ensure manual control panel is turned ON and LED
luminates
Over Heat Switch open
circuit, faulty or OHS
connector disconnected
(unit sparks for 2 seconds
then stops)
With power supply off check that OHS continuity is <1
OHS switch activation caused by insufficient flue draw
Check if OHS lead is not disconnected from Ignition
pack
No gas present or air in
gas supply
Ensure gas supply is turned on
Purge air from gas pipe (installer)
Repeat lighting procedure
Gas valve not opening Check power supply to POV
Yellow  Yellow DC12V
POV resistance 75 ~ 85
Ignition failure (no spark
present)
Listen if spark is present
Check by visual observation that spark is between
electrode and Pilot head (gap 3.5mm ± 0.5)
Check power supply to ignition box from control unit
Blue  Black AC216 ~ 264V
Check condition of ignition probe and check High
Tension lead connection
Pilot lights, then goes
out
Flame rod not sensing Check :
- Flame Rod
- Connection to Flame Rod
- Pilot Flame
- Blue Box (check earthing connection)
Smell of gas Leaking gas Turn off gas at meter or LPG/Propane cylinder
Is the gas connection secure, retighten and recheck
connection for leakage
Fan not working Fan is off Delay time for fan to come ON is 4 minutes
Check voltage and resistance at fan motor
Blue - White High fan 120 VAC 170~190 
Yellow - White Low fan 120 VAC 240~260 
Red - White Not used 120 VAC 260~280 

RIB2312 Sapphire Gas Log Flame Fire - 9 - 1/03/18 ©Rinnai
Fault Analysis
Electrical Component Analysis
Note: Before starting inspection, check wiring and double check all connectors are tight
Before carrying out checks marked*, remove power cord from socket
Nature of
fault Examination point Diagnostic point Values Actions
A. Burner will
not light
(1) Is the voltage
correct
Check power point and
voltage
AC216 ~ 264V Ensure power cord is plugged
in and turned on
Check that power is supplied
to control panel
Ensure manual control panel is
turned ON
(2) Is the 3A fuse in the
power supply OK
* measure the resistance
of the fuse
<1 Replace if blown
(3) Over Heat Switch
open circuit, faulty or
OHS connector
disconnected
(unit sparks for 2
seconds then stops)
*Measure the resistance of
the switch
<1 With power supply off check
that OHS continuity is <1
OHS switch activation caused
by insufficient flue draw
Check if OHS lead is correctly
connected to Ignition pack
(4) Is there voltage to
the ignition pack
With the appliance
switched on check for
voltage at the ignition pack
AC216 ~ 264V 
B. No spark at
Ignition probe
(5) Loose high tension
lead or cracked/
damaged ignition
probe
Check by visual
observation that spark is
between electrode and
Pilot head (gap 3.5mm ±
0.5)
C. Ignition
occurs but fire
pilot does not
light
(6) Check gas
pressure at test point
Check gas pressure with
digital manometer
See data plate
(7) Check Voltage at
POV
Yellow  Yellow
POV terminals
DC12V
75 ~ 85
D. Pilot lights
but goes out
after 1 minute
(8) Check flame rod
current
Check on flame rod testing
connection plug
>15mA
E. Fire lights but
flame does not
modulate
(9) Check voltage to
POV
Yellow  Yellow
POV terminals
DC12V
75 ~ 85
F. Fan does not
come on
(10) Check voltage at
fan motor
HI Fan
Blue-White
LO Fan
Yellow - White
AC110 ~ 130V
AC110 ~ 130V
(11) Check resistance
at fan motor
HI Fan
Blue-White
Lo fan
Yellow - White
170~190 
240~260 

RIB2312 Sapphire Gas Log Flame Fire - 10 - 1/03/18 ©Rinnai
Fault Finding
TROUBLE SHOOTING CHECKLIST
Use the following chart to help determine whether a service call is required, however if you are unsure
about the way your heater is operating, contact Rinnai or your local agent.
*Only applicable when optional remote controller is used. **Only applicable if the remote controller is programmed.
Rinnai recommends that this appliance be serviced every 2 years, including inspection of the flue system.
If the power supply cord, gas supply hose or any other component of the heater is damaged, they must be
replaced by Rinnai or a suitably qualified person.
Any service or repair work should only be carried out by an authorized person.
Do not remove any panels or attempt to carry out any service work other than that mentioned in the trouble
shooting chart.
The user shall be advised that appliances incorporating a solid fuel effect, and designed to operate with
luminous flames, may exhibit slight carbon deposits.
If you are unsure about the way your heater is operating, contact Rinnai Australia, or your local agent.
Fault
Condition
Probable
Cause
Burners fail to ignite
Smell of gas
Fan Not Working
Minor soot deposits
Severe sooting
Glass, Condensating
Glass, Streaky lines
*Remote not working
Fault
Condition
Simplest Possible
Remedy
Not plugged in or turned off Plug in power cord and turn power ‘ON’
Mains power failure Re-ignition, when power restored
(Initial Install) Air in gas pipe Installer to purge air from gas supply
Air in hose Repeat Ignition procedure
Ignition failure Repeat Ignition procedure
Flat battery for remote control *Replace remote control battery
Gas supply turned off Turn gas supply on at the meter or cylinder
Gas escape Isolate gas supply, call Rinnai
Inadequate flue system Check Flue System
Insufficient gas pressure Check Gas Pressure
Log Misalignment Re-align Log Media
Normal operation No action is required
Normal operation Fan not working - fan automatically comes on
after 4 minutes not heat switch activated
Normal operation Allow heater to warm up
Heat switch not activated Allow heater to run on high for 4 minutes
Possible fan fault Check Fan
Controller display blank Replace batteries.
Control Panel Operation ** Refer to Operation / Installation Manual
Controller Not Synchronised Refer to Operation / Installation Manual

RIB2312 Sapphire Gas Log Flame Fire - 11 - 1/3/18 ©Rinnai
COMMISSIONING INSTRUCTIONS
Commissioning the Appliance
Burner gas pressures and gas types are factory set.
The location of the gas control is below the combustion chamber on the right hand side of the appliance.
The location of the data plate is in the air gap at the right hand side of the appliance.
Step 1. Checking Supply Pressure (Ensure gas is connected)
1. Remove the gas inlet test point screw and connect the positive pressure manometer hose. Refer to Gas
Control Valve drawing below.
2. Press the heater ON/OFF button , on the PCB control panel to start the ignition sequence. The appliance
will ignite normally. Refer to PCB Control panel image on the next page.
3. Check the pressures as per the chart below for the correct gas type. Ensure all other gas appliances in the
household are running on 'HIGH'.
4. Press the ON/OFF to stop the appliance operation.
5. Disconnect the manometer hose and replace the inlet test point screw. Check for leaks using soapy water
solution.
Gas Control Valve
Step 2 . Setting burner gas pressure
1. Remove the main burner test point screw , and connect the positive pressure manometer hose.
2. Press the heater ON/OFF button , on the PCB control panel to start the ignition sequence. The appliance
will ignite normally. Refer to PCB Control panel image on the next page.
3. Press the 'TEST' button , twice on the PCB control panel, the igniter will spark and the appliance will light to
its lowest setting, (Main burner - stage 1), and the display , will show 'PL'. Refer to table on the next page
for correct gas settings, (data plate values override values printed in this instruction).
4. Press the 'UP' button or "DOWN' button to adjust to the required value if values are different.
240 VOLTS, RISK OF ELECTRICAL SHOCK! Exercise caution as there is potential for electric
shock from the exposed wiring and circuitry when panels are removed.
DO NOT leave the appliance unattended when the power is connected and the panels are
removed.
The gas type codes and gas pressures for this appliance MUST BE checked and set in accordance
with these instructions when the appliance is installed, OR after the replacement of any
component or reassembly after service.
Gas supply pressure is to be checked with all other gas appliances in the household running on
high. Failure to check this may result in lower than recommended required gas pressures,
resulting in poor performance and reduced flame effect.
Natural Gas Propane Gas
Minimum Supply pressure 1.13 kPa 2.50 kPa
Maximum Supply pressure 3.50 kPa 3.00 kPa
WARNING
NOTE
4
15
Main burner
Gas test point
Pilot flame
Gas test point
Pilot flame
Pressure Adjustment
Supply gas
test point
Supply gas
inlet
5
1
23
4
1
15
6
14
8
13

RIB2312 Sapphire Gas Log Flame Fire - 12 - 1/3/18 ©Rinnai
COMMISSIONING INSTRUCTIONS
5. Press the 'Set Button' , once to save the setting. The display , should now be displaying 'PH', (Main
burner stage 7). Refer to chart below for correct gas settings, (data plate values override values printed in this
instruction).
6. Press the 'UP' button, or "DOWN' button to adjust to the required value.
7. Press the 'Set Button', , once to save the setting.
8. The display will now show '7'. If the display does not change to '7' there was an error in pressure setting
and the pressure setting procedure should be repeated from step 1 onward after turning the appliance 'OFF'
9. With display , showing '7' Press the 'ON/OFF' button .
10.Setting main burner pressure is now complete. Remove the manometer hose and replace the inlet test point
screw. Check for leaks using soapy water solution.
PCB Control Panel
Step 3 . Checking and setting Pilot burner pressure
1. Remove the pilot flame gas test point screw and connect a positive pressure manometer hose.
2. Press the 'ON/OFF' button on the PCB control panel to start the ignition sequence, the appliance will
ignite normally. Refer to the PCB control image on the previous page.
3. Press the 'TEST' button , twice on the PCB control panel, the igniter will spark and the appliance will light to
its lowest setting, (Main burner - stage 1), and the display , will show 'PL'.
4. Adjust the pilot flame gas pressure to the value for the gas type as listed in the table below via the 'Pilot Flame
Pressure Adjustment' screw .
5. Press the 'ON / OFF' button once to stop the appliance operation. Refer to the PCB control panel image
above.
6. Disconnect the manometer hose and replace the pilot flame gas test point screw.
7. Check for gas leaks using soapy water, setting or checking pilot burner pressure is now complete.
Natural Gas Propane Gas
P L (stage 1) 0.15 0.50
P L (stage 7) 0.71 1.80
Pilot Flame Pressure Natural Gas Propane Gas
1.00 kPa 2.00 kPa
Always check gas pressure values to those recorded on this appliances data plate, values on the
data plate override values printed in this instruction.
11
14
8
13
11
14
14
15
9
10
6
78
11
12
14
15
13
2
15
6
14
3
15
NOTE

RIB2312 Sapphire Gas Log Flame Fire - 13 - 1/3/18 ©Rinnai
Commissioning the Appliance for different gas type
This appliance is factory set for the correct gas type as per it's gas type labelling, re-commissioning for gas type
will only be required if the PCB is being replaced or if it has undergone a gas type conversion, I.e.; from NG to
Propane or vice versa. Commissioning of the gas is carried out via the PCB.
1. Turn on the gas and power supply to the appliance.
2. With the appliance OFF, press the 'TEST' button the gas type code will be shown on the display .
3. Press the 'UP' button or 'DOWN' button to obtain the correct gas type code for the appliance. Refer to
the table below for correct gas type code.
4. Press the 'Set' button to lock in the code.
5. Gas pressure settings should now be checked as per steps 1 and 3 above.
240 VOLTS, RISK OF ELECTRICAL SHOCK! Exercise caution as there is potential for electric
shock from the exposed wiring and circuitry when panels are removed..
DO NOT leave the appliance unattended when the power is connected and the panels are
removed.
Commissioning of the PCB must be carried out BEFORE the gas pressures are checked.
Natural Gas Propane Gas
A1 L1
WARNING
NOTE
6
14
8
13
11

RIB2312 Sapphire Gas Log Flame Fire - 14 - 1/03/18 ©Rinnai
Dismantling for Servicing
NOTE: Before proceeding with dismantling, be sure to follow the CAUTION instructions
before each explanation.
CAUTION
240 Volt exposure. Isolate the electrical supply to the appliance and reconfirm with the
neon screwdriver or multimeter. Disconnect gas supply.
All work should be carried out by qualified service technician
1/ Remove of Front Panel......................................................................15
2/ Removal of push button control panel PCB....................................15
3/ Removal of push button control panel label...................................15
4/ Removal of Front Panel Glass & ‘Standoff’s’..................................16
5/ Removal of Combustion Chamber Glass........................................16
6/ Removal of the Burner ......................................................................16
7/ Removal of Pilot Assembly...............................................................17
8/ Removal of Gas Control / Ignition Pack...........................................18
9/ Removal of PCB.................................................................................18
10/ Removal of Transformer ...................................................................18
11/ Combustion Chamber Removal .......................................................19
12/ Fan Replacement...............................................................................20
13/ Heat Exchanger Replacement ..........................................................20
Unless otherwise stated, re-assembly is the reverse of dismantling.

RIB2312 Sapphire Gas Log Flame Fire - 15 - 1/03/18 ©Rinnai
CAUTION
240 Volt exposure. Isolate the electrical supply to the appliance and reconfirm with the
neon screwdriver or multimeter. Disconnect gas supply.
All work should be carried out by qualified service technician
1) Remove of Front Panel
a. Remove 2 screws from bottom LH & RH.
(Refer Image 2).
b. Lift Front Panel assembly UP and forward.
c. Disconnect Control Panel Cable from the RJ45
connector located top left. (Refer Image 3).
d. Carefully place down. Image 1
Image 2
2) Removal of push button control panel
PCB
a. Remove the 2 retaining screws as marked in
Image 3.
Image 3
3) Removal of push button control panel
label
a. Carefully remove old label taking care not to
damage duco.
b. Clean old adhesive residue from duco.
c. Remove wax paper from new label.
d. Line up opaque window with led and press to
panel.
Image 4