Rinnai BC 70 2A, MC 70 2A, MC 91 1A Installation And User Manual

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Rinnai

Installation and User Manual

for

Controllers

BC 70 2A

MC 70 2A

MC 91 1A

TEMPERATURE CONTROLLERS - GENERAL

When deciding on the best position for the temperature controls, the following points should be taken into account.

• Fit the controls out of reach of children. (suggested height from the floor 1.5m)

• Avoid positions where the controllers will become hot e.g. near stoves, ovens

and heaters.

• If possible, avoid exposure to direct sunlight or positions where bright lights will

make the digital display difficult to read.

• Position away from areas where the controller will be prone to splashing by

cooking products such as oils and fats.

• The temperature controllers are water resistant, however they should be

positioned away from areas where direct or persistent splashing could occur.

• Refer to the I.E.E electrical wiring regulations current edition for location

requirements in shower and bath areas.

• The cables to the temperature controller carry only 12VDC (extra low voltage)

• Cables should run back to the

Infinity

Infinity from the temperature controller or

cables should run between the controllers then back to the heater. (Parallel connection).

The installation in every application will vary, therefore the temperature controller cable has been provided so that you may cut the length accordingly and fit the spade connectors, ensuring a good connection.

Cables are simply ‘piggy-backed’ at the

Infinit

Infinity or at the primary temperature

controller. Polarity is not important when connecting the cables, either colour wire can be connected to either terminal at both the heater or primary temperature controller. If more cable is needed any cable with similar specification to the cable supplied with the controller can be used. Maximum length is 50 metres.

-1-

TEMPERATURE CONTROLS - GENERAL

Connecting One or Two Controllers

1. Isolate the power supply

2. Remove the front cover from the Appliance (4 screws) fig. 1.

3. Thread the cable(s) through the cable access hole at the base of the appliance.

4. Connect the spade connectors to the terminals marked "Remote Control" on the printed circuit board (fig.2). Polarity is not important. Either wire colour can be connected to either terminal.

5. Replace cover of the Appliance. Ensure that the screw with the star washer is placed at the bottom right hand corner for earthing purposes.

Connecting Three Controllers

1. Isolate the power supply

2. Remove the front cover from the Appliance (4 screws) fig.1.

3. Cut the spade connectors from 2 of the controller cables to be connected to the appliance (4 spade connectors should be cut off) and discard. Connect the wires from these two cables and terminate into two new spade connectors as shown in fig.3. Spade connectors are available from your local electrical component retailer.

4. Thread the 3 cables through the cable access

hole at the base of the appliance. Connect the 4 spade connectors to the terminals marked "Remote Control" on the printed circuit board (fig.2). Polarity is not important. Either wire colour can be connected to either terminal.

5. Replace cover of the Appliance. Ensure that the screw with the star washer is placed at the bottom right hand corner for earthing purposes

- 2 -

TEMPERATURE CONTROLLERS

The purpose of the Temperature Controllers is to en able the user to have complet e control over the hot water unit. Used correctly, the hot water unit will supply hot water at the temperature selected, even when the water flow is varied, or when more than one tap is used. Adjustments to the operation of your hot water unit can be made with any of the Temperature Controllers. Each Temperature Controller can be individually programmed.

Various water temperatures (°C) can be selected as follows:

Kitchen Controller:

37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 55°C* ( 60, 65°C HD )

Bathroom Controller

Hot Water Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50°C

Bath fill Delivery: 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48°C

If a temperature 43°C or higher is selected on any Controller and this temperature is then decreased to below 43°C and increased again whilst the water is running, the maximum selectable temperature will become 43°C. This provides additional safety for the consumer.

Suggested temperatures are:

Kitchen 50°C ~ 55°C* ( 65°C HD ) Shower 39°C ~ 43°C Bath fill 39°C ~ 45°C

* This temperature may not be available on all installations

These temperatures are suggested starting points for selection. You may find higher or lower temperatures are more comfortable. Maintaining lower temperatures helps to save energy. To obtain water temperatures lower than 37°C simply add cold water.

Temperature Controllers are an optional extra. ‘Universal’ and ‘Deluxe’ Temperature Controllers can be fitted. Universal Controllers allow temperature selection only. Deluxe Controllers have temperature selection, bath fill and clock functions.

Temperature Controllers allow the temperature to be set from various locations. The temperature selected will be available to all outlets.

Controller Options

Water Heater Model Controller Options Kitchen Bathroom 1 Bathroom 2 Bathroom 3

Infinity 26i or 32e

HD50i or HD70e

Note: The maximum available controllers configurations are shown for each model.

† When 3 deluxe controls are installed the option of adding a 4

* When a MC-91-1A Temperature Control is used for this application the installer may set this unit as a master controller.

Deluxe Option 1 MC-70-2A BC-70-2A BC-70-2A MC-91-1A † Deluxe Option 2 MC-70-2A BC-70-2A MC-91-1A MC-91-1A

Universal Option MC-91-1A * MC-91-1A MC-91-1A MC-91-1A

controller is only available on the Infinity and HD models.

- 3 -

UNIVERSAL TEMPERATURE CONTROLLER

Universal Temperature Controller (MC-91-1A)

Temperature Controllers are not required to operate the applia nce they are a feature that provides control of water temperature.

Rinnai Infinity and HD water heaters can be operated with 1, 2, 3, 4 or no Temperature Controllers.

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- 4 -

OPERATION WITH UNIVERSAL TEMPERATURE CONTROLLERS

Using 1 Universal Temperature Controller

Press the ON/OFF button on the Temperature Controller.

The ON indicator will glow on the Temperature Controller. This indicates that the hot water unit is ready to supply hot water when a tap is open.

Adjusting Temperature

Simply press the HOTTER ∧ or COOLER ∨ button until the required temperature is displayed on the Digital Monitor.

To operate the hot water unit, simply turn any hot water tap on. This will automatically light the burner providing hot water. The red IN USE indicator will glow on the Temperature Controller.

If the set temperature is either to hot or cold Press the HOTTER ∧ or COOLER ∨ button until the desired temperature is reached

CAUTION

NOTE

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot water

Consumer safeguards: With the hot water tap open and a temperature of 43°C or higher selected, if the temperature is decreased to below 43ºC, and then raised again th e maximum available temperature will be 43°C

in addition temperature ‘priority’ cannot be transferred betwee n contr ollers.

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- 5 -

OPERATION WITH UNIVERSAL TEMPERATURE CONTROLLERS

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.

Using Hot Water

Ensure the system is switched ‘ON’. When the system is ON, the temperature displays will be lit. Confirm that the transfer on indicator is lit. If not press the TRANSFER button once. This will transfer priority to this controller which will then have control of the water delivery temperature.

Select the desired temperature using the ‘hot water temp’ buttons. The selected temperature will be displayed on all controller monitors. This is the water temperature which will be supplied to all outlets.

NOTE

Temperatures no higher than 50ºC should be able to be selected on controllers installed in bathrooms, ensuites or toilets. This is to help reduce the risk of burns from hot water. If this is not the case, the controllers have been incorrectl

installed. CONTACT YOUR INSTALLER.

Open the Hot Water Tap. The appliance will be activated and the

HOT

COLD

‘in use’ indicator will light up.

NOTE

be 43°C, in addition temperature ‘pr iority’ can not be transferred be tween con trollers.

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- 6 -

TEMPERATURE CONTROLS—PROGRAMMING

Q: Are Four temperature controllers fitted?

If Yes.

You will need to activate the fourth controller.

STEP 1: For the Primary controller only 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.

This completes the activation procedure for this configuration.

If No. (You have three or less controllers)

You will need to program the primary controller to enable the selection of temperatures higher than 50ºC.

STEP 1: For the Primary controller only press and hold the ‘Transfer’ and ‘On/Off’ buttons simultaneously (see fig 2.) until a “beep” is heard (approx. 5 seconds)

STEP 2: When the Primary controller is switched on it should be possible to select temperatures higher than 50ºC. If not repeat STEP 1.

Note:

If the primary controller is replaced, repeat STEP 1 above for the new controller.

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OPERATION WITH UNIVERSAL TEMPERATURE CONTROLLERS

(

)

To TURN OFF your hot water system

Simply press the ON/OFF button on any Temperature Controller (where fitted). This will shut the Infinity down completely including the Temperature Controller digital displays.

The ON indicator will go out.

If hot water taps are opened when the unit is OFF, cold water will flow from the taps.

Additional SAFETY features

Whilst the hot water tap is open, the following safety features apply:

• Temperature selection cannot be transferred.

• If a temperature of 43°C or higher selected, and

then the temperature is decreased to below 43ºC, and then raised again the maximum available temperature will be 43°C.

• Other controllers are unable to change the delivery

temperature of the water heater.

NOTE

The temperature of outgoing hot water is constantly monitored by a built-in sensor. If the temperature of th e outgoing hot water rises to more than 3°C above the selected temperat ure shown on the Digital Monitor or the pre-set limit when Temperature Controllers are not fitted, the burner will automatically go out. The red operation indicator will also go out. The burner will ignite again once the outgoing hot water temperature falls to that shown on the Digital Monitor

or the pre-set limit of the Infinit

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DELUXE TEMPERATURE CONTROLLERS

Deluxe Kitchen Temperature Controller (MC-70-2A)

This temperature controller is installed in the kitchen. Each button confirms its operation with a beep and / or voice.

CAUTION

Be careful not to get water in the speaker as it may cause damage.

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- 9 -

DELUXE TEMPERATURE CONTROLLER

Deluxe Kitchen Temperature Controller Monitor

Each time a button is pressed, a ‘beep’ will sound. The ‘beep’ sound and the ‘bath fill complete’

uzzer can be muted by pressing the Temperature Controller Up and Down buttons simultaneously for more than 3 seconds. This can be done fo r each Temperature Controller. To return to original settings, repeat this step.

NOTE

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- 10 -

DELUXE TEMPERATURE CONTROLLER

Deluxe Bathroom Temperature Controller (BC-70-2A)

This temperature controller is installed in the b athroom. Each button confirms its operation with a beep and / or voice.

Used to transfer 'priority' between the temperature controllers. The controller with priority has command of the water delivery temperature. The light behind the transfer button of the controller that has priority will be illuminated.

TRANSFER BUTTON / LIGHT (Green)

DIGITAL MONITOR

Indicates the hot water temperature, Shower Saver / Bath Fill temperature, Shower Saver / Bath Fill volume, and the mode of operation.

SHOWER SAVER

/ BATH FILL

BUTTON (Orange)

Used to select Shower Saver / Bath Fill function.

Be careful not to get water in the speaker as it may cause damage.

TEMPERATURE 

CONTROL BUTTONS

Used to select water temperature.

WATER VOLUME

BUTTONS

Used to select Shower Saver / Bath Fill volumes.

SOUND VOLUME

Used to change the voice volume.

SPEAKER

BATH / SHOWER

TEMP. BUTTON.

Used to select Shower Saver / Bath Fill temperature.

BUTTON

ON/OFF BUTTON

Used to switch temperature controllers on and off.

CAUTION

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DELUXE TEMPERATURE CONTROLLER

Deluxe Bathroom Temperature Controller Monitor

• Each time a button is pressed, a ‘beep’ will sound.

• The ‘beep’ sound and the ‘bath fill complete’ buzzer can be muted by pressing the

Temperature Controller Up and Down button s simultaneously for more than 3 seconds. This can be done for each Temperature Controller. To return to ori

NOTE

inal settings, repeat this step.

- 2666 -

- 12 -

Clock Hour Min.

Vol.

Hot water

temp.

00 00

ON/OFF

MC -70 -1A

Transfer

Sound

Cooler Hotter

Clock Hour

Min.

Vol.

Hot water

temp.

00 00

ON/OFF

MC -70 -1A

Transfer

Sound

Cooler Hotter

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

DELUXE TEMPERATURE CONTROLLERS

Using 1 Deluxe Controller

When one Deluxe Temperature Controller is required, the kitchen model must be used (MC-70-2A).

Switching the system ON

The hot water system and controller can be switched on and off pressing the ‘ON/OFF’ button as shown. When the system is turned on, the monitor will be lit. During normal operation the system is left on.

Setting the Clock

The clock is of the 12 hour AM/PM type.

Press the ‘Clock’ button. The digital monitor will flash AM 12:00.

Set the time using the ‘Hour’ and ‘Min.’ buttons. The time is displayed on the monitor as the buttons are pressed. The numbers on the monitor will continuously change if yo u keep the buttons depressed. When you get close to the desired time, press the button intermittently.

Press the ‘Clock’ button again to activate the clock.

NOTE

The time is always displayed regardless of whether the Temperature Controller is turned O N or OFF . The clock may need to be reset after a powe r failure.

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- 13 -

DELUXE TEMPERATURE CONTROLLERS

Setting the Sound Volume

The ‘Sound Vol.’ Button located behind the flip panel is not used when one Kitchen Controller is connected.

Using Hot Water

The hot water delivery temperature can be controlled from the Kitchen Controller (MC-70-2A).

Ensure the system is switched ON. If not, press the ‘ON/OFF’ button behind the flip panel once. The ‘Transfer’ button will light up.

Clock Hour Min.

ON/OFF

00 00

Transfer

Hot water

temp.

Cooler Hotter

Sound

Vol.

MC -70 -1A

Select the desired temperature using the ‘Hot water temp.’ buttons. The selected temperature will be displayed on the controller monitor.

Open the hot water tap. The hot water unit will activate and the red combustion symbol will light up on the monitor.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot wa ter

CAUTION

HOT

COLD

Transfer

NOTE

will be 43°C

in addition temperature ‘priority’ cannot be transferred between controllers.

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- 14 -

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

Clock Hour

Min.

Vol.

00 00

ON/OFF

Sound

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Using 2 Deluxe Controllers

When 2 Deluxe Temperature Controllers are us ed, they must be models MC-70-2A (Kitchen) and BC-70-2A (Bathroom).

Switching the System ON

The hot water system and both controllers can be switched on and off from either controllers by pressing the ‘ON/OFF’ button as shown. When the system is turned on, the monitor will be l it. During normal operation the system is left on.

Setting the Clock

The clock is of the 12 hour AM/PM type and is set on the Kitchen Controller (MC-70-2A).

Press the ‘Clock’ button. The digital monitor will flash AM 12:00.

00 00

Clock Hour Min.

ON/OFF

00 00

Clock Hour Min.

ON/OFF

Transfer

Hot wate r

temp.

Cooler Hotter

Sound

Vol.

MC-70-1A

Transfer

Hot wate r

temp.

Hotter

Cooler

Sound

Vol.

MC-70-1A

Set the time using the ‘Hour’ and ‘Min.’ buttons. The time is displayed on the monitor as the buttons are pressed. The numbers on the monitor will continuously change if you keep the buttons depressed. When you get close to the desired time, press the button intermittently.

Press the ‘Clock’ button again to activate the clock.

The time displayed on the Kitchen Controller is automatically displayed on all Bathroom Controller(s) when the Bathroom Controller(s) are ON. If the controllers are OFF, the time is onl

NOTE

displayed on the Kitchen Controller. The clock may need to be reset after a power failure.

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- 15 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Setting the Sound Volume

The sound volume for all Temperature Controllers can be set individually. Note that this can be done with the Temperature Controllers switched off.

Press the ‘Sound Vol.’ Button located behind the flip panel.

The volume will change as follows:

Voice Volume

Initial Setting Medium

Press Once High Press Again Off Press Again Low

Using Hot Water

The hot water delivery temperature can be controlled from either the Kitchen Controller (MC-70-2A) or the Bathroom Controller (BC-70-2A).

Deluxe Kitchen Controller

Ensure the system is switched on. When the system is ON, the monitors will be lit. Confirm that the ‘Transfer’ button is lit. If not, press the ‘Transfer’ button once.

00 00

Clock Hour Min.

ON/OFF

Transfer

Hot wa ter

temp.

Hotter

Cooler

Sound

Vol.

MC-70-1A

Clock Hour

ON/OFF

00 00

Transfer

Hot water

temp.

Min.

Cooler Hotter

Sound

Vol.

MC -70 -1A

Select the desired temperature using the ‘Hot water temp.’ buttons. The selected temperature will be displayed on both the Kitchen and Bathroom Controllers at the top of each monitor.

Open the hot water tap. The hot water unit will activate and the red combustion symbol will light on both the kitchen and bathroom monitors.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is

CAUTION

NOTE

laced in contact with hot water.

Consumer safeguards: With the hot water tap open and a temperature of 43°C or higher selected, if the tem pera ture is dec rea sed to be low 4 3ºC, and then raised again the maximum available temperature will be 43°C, in addition temperature ‘priority’ cannot be transferred between controllers.

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- 16 -

HOT

Transfer

COLD

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Deluxe Bathroom Controller

Ensure the system is switched on. When the system is ON, the monitors will be lit. Confirm that the ‘Transfer’ button is lit. If not, press the ‘Transfer’ button once.

Select the desired temperature using the ‘Hot water temp.’ buttons. The selected temperature will be displayed at the top of all controller monitors.

Open the hot water tap. The hot water unit will activate and the red combustion symbol will light on both bathroom and kitchen monitors.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot water.

CAUTION

NOTE

The ‘Shower Saver / Bath fill’ function enables a shower to be run for desired period or a bath to be filled to the desired level at the desired temperature automatically .

There are 2 steps to perform :

Step 1. Program the shower / bath volume and temperature into the Bathroom

Step 2. Activate the automatic ‘Shower Saver / Bath fill’ function and follow the voice prompts.

CAUTION

Step 1 - Programming the bath volume and temperature

When the controllers are first turned on, the default shower / bath fill temperature is 40 (indicated by the first level marker at the bottom of the monitor). The shower / bath volume can then be changed up to a maximum of 400 litres. These settings are displayed at the bottom of the Bathroom Controller monitor and can be changed by the user as described on the next page.

Consumer safeguards: With the hot water tap open and a temperature of 43°C or higher selected, if the temperature is decre ased to below 43º C, and then raised again the maximum available temperature wil l be 43°C

in addition temperature ‘priority’ cannot be tra ns fer re d be twe en c on trollers.

Controller(s) (BC-70-2A).

When using the ‘Shower Saver / Bath fill’ function to fill a bath for the first few times, it is recommended that

C and the shower / bath volume is 100 litres

HOT

COLD

Kitchen Bathroom

ou are present during the filling process.

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- 17 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

(a) Ensure the system is switched on. When the system is ON, the

monitors will be lit. Confirm that the ‘Transfer’ button is lit. If not, press the ‘Transfer’ button once.

(b) Select the desired temperature using the ‘Shower / Bath temp.’

buttons located behind the flip panel. The selected temperature will be displayed on the bottom of the bathroom controller monitor and will remain until it is next changed.

Buttons located behind the flip panel. The selected volume will be displayed at the bottom of the bathroom controller monitor numerically, and graphically by the long bar against the level markers. During the first bath fill, it is recommended that the lowest bath fill volume of 30 litres is used. During subsequent bath fills this can be increased depending on the volume of your bath and the desired level.

The relationship between shower / bath volume in litres and the position of the long bar against the level markers is as follows.

Eg. 120 litres – denoted numerically and by the second level marker from the bottom of the

monitor, as shown below.

Volume(L)

400 350 300 280 260 240 220 200 180 160 140 120 100

60 30

(d) After approx. 5 seconds, the numeric volume

displayed will revert to the shower saver / bath fill temperature previously set. The long bar on the level markers will remain.

Position of

longbar

12 12 11 10

9 8 7 6 5 4 3 2 1 1 1

Remember that the bath level markers on the display are not a true representation of your bath. ie. the ‘half-way’ mark on the monitor is not necessarily the ‘half-way’

mark on your bath. The average bath size is 160 litres. Be careful not to overfill the bath!

NOTE

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- 18 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Step 2 – Activate the automatic Shower saver / Bath fill function and follow the voice prompts.

(a) Ensure the system is switched on. W hen the sy stem is ON, the monitors will be lit. Confir m

that the ‘Transfer’ button is lit. If not, press the ‘Transfer’ button once.

(b) Press ‘Shower Saver / Bath fill’ button. The

‘Shower Saver / Bath fill’ button will light up and the buzzer will sound. The ‘Bath’ indicator on the Kitchen Controller monitor will light up. The voice will say “The hot water system is ready. Open the hot water tap.”

The combustion indicator on all Temperature Controller(s) will light up and the shower will run or the bath will start to fill.

CAUTION

NOTE

If you wish to stop the water flow whilst the shower saver / bath fill function is in operation, simply press the ‘Shower Saver / Bath fill’ button. The ‘Shower Saver / Bath fill’ button will flash and the voice with say “Hot water is not available; Turn off all hot water taps and push the ‘Bath fill’ button”. Follow these instructions.

(d) When the shower / bath fill is finished to the programmed volume & temperature (see ‘Step 1’):

• The flow from the shower / bath hot water tap will stop;

• The ‘Shower Saver / Bath fill’ button on the Bathroom Controller(s) and the ‘Bath’

• The buzzer will sound;

• The voice will say “Bath fill is co mplete. Turn off the bath hot water tap and push the

(e) IMPORTANT – When filling a bath, close the hot water tap for the bath when the bath is

full. This is very important to prevent over filling of the bath.

(f) Press the ‘Shower Saver / Bath fill’ button. This is also important. It tells the hot water unit

that the customer is aware that the shower or bath fill function has b een co mpleted and that the hot water tap for the shower or bath has been shut. The hot water unit will not allow hot water to flow from any fixture until the ‘Shower Saver/ Bath fill’ button has been pressed.

The ‘Shower Saver / Bath fill’ button light on the Bathroom Controller and the ‘Bath’ indicator on the Kitchen Controller monitor will go out.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a Child is placed in contact with hot water.

During Shower Saver / Bath fill, the time display on the Bathroom Controller will show the remaining shower / bath fill volume a nd will ‘count down’ the volume remaining.

indicator on the Kitchen Controller monitor will flash;

Bath fill’ button.”

NEVER LEAVE YOUNG CHILDREN UNATTENDED IN THE BATH.

When using the ‘Shower saver / Bath fill’ function, ALWAYS close the hot water tap for the bath

CAUTION

after the bath has filled and flow has sto

ed.

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- 19 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Using 2 Deluxe Controllers and 1 Universal Controller

When 2 Deluxe Temperature Controllers are used, they must be one MC-70-2A (Kitchen), one BC-70-2A and one MC-91-1A (Bathrooms 1 & 2)

Clock Hour Mi n.

ON/OFF

00 00

Transfer

Hot wa ter

temp.

Hotter

Cooler

Sound

Vol.

MC-70-1A

Switching the System On

The hot water system can be switched on and off from any controller by pressing the ‘ON/OFF’ button as shown. When the system is turned on, the monitors will be lit. During normal operatio n the system is left on.

Setting the clock

See page 13 for details on setting the clock.

Setting the Sound Volume

See page 16 for details on setting the sound volume.

Using Hot Water

The hot water delivery temperature can be controlled from either the Kitchen Controller (MC-70-2A), Bathroom Controllers (BC-70-2A ) or Universal Controller (MC-91-1A). See pages 16 to 17 for details on setting the hot water delivery temperature for the Kitchen and Bathroom Controllers.

Shower Saver / Bath Fill Function

See pages 17 to 19 for details on the Shower Saver / Bath fill function. With two or more Bathroom Controllers fitted (one in each bathroom) only one bath can be filled at a time.

CAUTION

NOTE

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot wa ter

in addition temperature ‘priority’ cannot be transferred between controllers.

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- 20 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Using 3 Deluxe Controllers

(Option available with Infinity and HD models)

When 3 Deluxe Temperature Controllers are used, they must be one MC-70-2A (Kitchen) and two BC-70-2A (Bathrooms 1 & 2)

Clock Hour Min.

ON/OFF

00 00

Transfer

Hot wa ter

temp.

Hotter

Cooler

Sound

Vol.

MC-70-1A

Switching the System On

Transfer

00 00

Clock Hour Min.

ON/OFF

Hot wa ter

temp.

Hotter

Cooler

Sound

Vol.

MC-70-1A

Setting the clock

See page 13 for details on setting the clock.

Setting the Sound Volume

See page 16 for details on setting the sound volume.

Using Hot Water

The hot water delivery temperature can be controlled from either the Kitchen Controller (MC-70-2A) or Bathroom Controllers (BC-70-2A). See pages 16 to 17 for details on setting the hot water delivery temperature for the Kitchen and Bathroom Controllers.

Shower Saver / Bath Fill Function

See pages 17 to 19 for details on the Shower Saver / Bath fill function. With two or more Bathroom Controllers fitted (one in each bathroom) only one bath can be filled at a time.

CAUTION

NOTE

eat the relevant procedures above for the third (Bathroom) Controller.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot water

in addition temperature ‘priority’ cannot be transferred between c ontro llers.

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- 21 -

OPERATION WITH DELUXE TEMPERATURE CONTROLLERS

Using 3 Deluxe Controllers and 1 Universal Controller

(Option available with Infinity and HD models)

When 4 Temperature Controllers are used, they must be one MC-70-2A (Kitchen), two BC-70-2A (Bathrooms 1 & 2) and one MC-91-1A (Bathrooms 3)

Clock Hour Min.

ON/OFF

00 00

Transfer

Hot wa ter

temp.

Cooler Hotter

Sound

Vol.

MC-70-1A

Switching the System On

The hot water system can be switched on and off from any controller by pressing the ‘ON/OFF’

utton as shown. When the system is turned on, the monitors will be lit. During normal operation the

system is left on.

Setting the clock

See page 13 for details on setting the clock.

Setting the Sound Volume

See page 16 for details on setting the sound volume.

Using Hot Water

The hot water delivery temperature can be controlled from the Kitchen Controller (MC-70-2A), Bathroom Controller (BC-70-2A) or Universal Controller (MC-91-1A). See pages 16 to 17 for details on setting the hot water delivery temperature for the Kitchen and Bathroom Controllers.

Shower Saver / Bath Fill Function

The ‘Shower saver / Bath fill’ function can only be used on Temperature Controller BC-70-2A. See pages 17 to 19 for details on the ‘Bath fill’ function.

CAUTION

NOTE

Repeat the relevant procedures above for the third (Bathroom) controller.

CHECK WATER TEMPERATURE BEFORE USE.

A parent should always check the temperature before a child is placed in contact with hot wa ter

in addition temperature ‘priority’ cannot be transferred between controllers.

- 26 -

- 22 -

Maintenance Monitor / Error History

This feature is available where the appliances are connected with a deluxe controller (MC70 or BC70). This will enable service personnel to locate the maintenance history and faulty components, with the appliance in operation.

NB. When the maintenance information, error history is shown, use only one controller. If two or more remote controls are used at the same time, it may not operate correctly.

To display Maintenance Information

Note: Infinity 26i and HD50i use Maintenance Numbers 1-12.

*Note 1

Fan Frequency rpm Conversion

(rpm) = (Hz) x15

*Note 2

Remote Control Connections

16. With the controller in the "OFF" position press the Water Temperature "DOWN" (Cooler) button while holding the "ON/ OFF" button to activate the maintenance monitor. Press the "ON/ OFF" button a second time to set the controller in the "ON" mode. This feature can now be used with the appliance in operation.

17. The maintenance number will be shown in the Water Temperature display.

18. Data will be shown in the Clock display.

19. To select the required maintenance number, press the Water Temperature "UP" and "DOWN" buttons.

Display Monitor Contents

No. Contents Units Data Range

01 Water flow sensor recognition flow

(Example 123 = 12.3L/min).

0.1L/min 0~400

02 Hot water Outlet thermistor temperature

(Example 20 = 20 C)

0~999

03 Hot water combustion time

(Example 6 = 600 hours)

100 hours 000~999

04 Hot water operation frequency

(Example 6 = 600 Operations)

100 0~999

05 Hot water fan frequency Hz pulses/sec 0~999 *Note 1

06 Remote control connection none 0 or 1 *Note 2

Bathroom Remote

Additional remote Kitchen remote

“0 1 1”

Controls connected Display

No “0”

Ye s “ 1”

07 Water flow servo present recognising positioning None 0~2 *Note 3

*Note 3 Water Flow Servo Positioning

To return to normal operation

• Press the ON/OFF button again while holding down the Water Temperature "DOWN" (Cooler)

button.

To return to normal operation.

• Press the ON/OFF button again while holding the Water Temperature “UP” (Hotter) button.

• This feature will automatically shut down after 3 minutes.

Servo Position Open Centre Closed

Display “1” “0” “2”

08 Inlet water temperature

(PCB recognition value)

(Example 25 = 25 C)

0~999

09 Hot water fan current flow value

(Example 6 x 10 = 60 mA)

10 mA 0~999

10 Bath fill amount (this counts the litres during bath

fill operation).

Litres 0~999

11 Heat exchanger exit thermistor temperature

Example 55 = 55 C)

0~999

12 Bypass servo present recognition positioning

(Example 0 = Closed

160 = Half open 320 = Open

Degrees 0~320

Error History

To Display Error Memory (History)

(This feature will show the last 10 faults in sequence)

1. Turn off at the ON/OFF button. (This can be done during operation)

2. Press the ON/OFF button while holding the Water Temperature "UP" (Hotter) button.

• The Sequence will be shown in the Water Temperature display.

• Error Code will be shown in the Clock display. (See service

Manual for error codes).

• Where there are less than a total of 9 errors, "FFF" or " - - " will

be displayed in the Clock display.

Rinnai BC 70 2A, MC 70 2A, MC 91 1A Installation And User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual