Rinnai R331 User Manual Download Page 1

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REB-KA2024FF | REB-KA2529FF | REB-KA3135FF | R331 | RC34

RINNAI GAS BOILER

If the information in this manual is not followed exactly, it could cause property damage, personal injury or loss of life.
So please read it carefully.

Keep this manual for future reference.

Appearance and specification of the project subject to change for quality improvement without notice in advance.

Summary of Contents for R331

Page 1: ...ion in this manual is not followed exactly it could cause property damage personal injury or loss of life So please read it carefully Keep this manual for future reference Appearance and specification of the project subject to change for quality improvement without notice in advance ...

Page 2: ...ure controller Operation CH mode operation Rapid heating DHW mode operation DHW preheating Auto mode operation Outgoing mode operation Reservation mode operation Cleaning Maintenance Basic troubleshooting USER 3 8 9 10 11 12 13 14 15 16 17 19 ...

Page 3: ... the windows and doors 3 Contact the Rinnai service Use a remotely located phone If you detect earthquake fire gas vapor noise or irregular smell turn off the power immediately and close the gas shutoff valve and open the windows and doors Excessively hot water is dangerous especially for young children and the infirm The water heater allows you to control the temperature of your hot water to safe...

Page 4: ...The older child may not have safely set the temperature Consider reducing the temperature of the water supplied to the hot tap 50 This approach can be extremely valuable because it requires a one time action for a long term reduction in risks of scalds This type of automatic protection is important during times when a parent or carer has been distracted This appliance can be used by children aged ...

Page 5: ...of the gas resulting in carbon monoxide poisoning or product failure When moving check to ensure that the gas in use matches with the gas indicated on the data plate data plate Warning Do not place flammable objects near the boiler It could cause a product failure or fire due to overheating Must check that a exhaust pipe is properly installed Must check that a exhaust pipe is connected well and go...

Page 6: ...ock the exhaust vent Covering the exhaust vent with vinyl or fabric to prevent wind or rain could cause monoxide poisoning Check to make sure that each room valve of allotter is opened and air is properly removed Do not drink water collected inside the unit or use it for cooking It might be polluted by bacteria and or rust A metal pipe or metal flexible hose should be used as gas pipes to be conne...

Page 7: ...ipes must be wrapped with insulating materials Installation of hot wires on pipes could protect the boiler from freezing If water pipes are frozen there would be no supply of hot water Use a hair dryer or a portable electric heater to unfreeze the water pipes and hot water pipes and if such emergency measure does not work contact the Rinnai service Installation of hot wires on pipes could protect ...

Page 8: ...wn in below come with the boiler Check the number of all the accessories Remove the packaging paper Styrofoam and tape from the accessories Keep this manual for future reference Remote Controller Manual Screws for the Remote Controller x2 Wiring of controller Reservation mode operation Hot water preheating Internet control sign optional Reservation absence time Auto mode operation Auto mode operat...

Page 9: ...heating mode is the space heating mode Operation Flow temperature mode The flow temperature mode is detecting the heating supply water temperature A user can manually adjust the heating supply water temperature The default flow temperature is 55 The default spaceheating temperature is 22 Flow temperature mode To change the CH mode operation and then hold both the outgoing button and the reservatio...

Page 10: ...ow temperature mode is on the current temperature appears on the display To view the heating supply hot water temperature press the auto mode button for 2 seconds Then the supply hot water temperature appears on the display for 10s 5 40 50 80 Space temperature Flow temperature Eco Sign appears on the display when the boiler operates in the eco friendly combustion which could lower the gas cost and...

Page 11: ... Display when the Rapid heating for the Indoor heating Mode is on Display when the Rapid heating for the Floor Heating Mode is on Press the CH mode button When the room temperature is too low it is possible to raise the room temperature with the rapid heating The rapid heating Operation can operate for up to 25 minutes After that period the heating temperature automatically returns to the previous...

Page 12: ...s on The CH mode is not on when only the DHW mode appears on the display Press the DHW mode button Press Up or Down button until the desired temperature appears on the display You can adjust the hot water temperature within a range of 35 C to 55 C while hot water is being used for safety Close all hot water faucets if you are willing to increase the hot water temperature to 60 C DHW mode operation...

Page 13: ...ed signal appears on the display indicating that preheating is on Open a DHW faucet or press both Up and Down buttons again to cancel the DHW Preheating You can use the DHW with this hot water preheating function The DHW preheating automatically turns off after 30min Press the DHW mode button 13 ...

Page 14: ... children The sensible temperature could be varied upon the installation operation environment Display when the Auto mode for the Space heating Mode is on Display when the Auto mode for the Flow temperature Mode is on This auto mode is designed for maximizing users convenience by automatically controlling both heating and hot water temperatures by detecting a difference between outdoor and indoor ...

Page 15: ...emperature after a set period of time This function is useful to keep the place warm even when users are in absence at a low cost The CH mode automatically activates after the set period of time in absence You can change the heating temperature of the Outgoing mode while setting To cancel the auto mode press either outgoing mode button or CH mode button while the auto mode is on 12 hours Outgoing ...

Page 16: ... hour 2 hour 12 hour Cancel Stand by Remark Combustion period 11hr 12hr Cancel To cancel the reservation mode operation press the reservation mode button once again It will be respected till the cancelation of the reservation mode Reservation mode will start from current setting of the boiler This function could be handy during spring fall sleeping hours when heating is required at intervals Displ...

Page 17: ... water could be hot If the CH return filter and DHW inlet filter is blocked by foreign substances it could deteriorate the performance of the boiler as well as its service life Clean the filters regularly in compliance with the following instruction After cleaning and or maintenance check to ensure that all the components of the boiler are intact Unplug the boiler prior to cleaning and or maintena...

Page 18: ...ut 1 2L Be careful since the water could be hot 3 Turn the handle of the DHW inlet filter to the left and then remove it by using a coin Be careful since the remaining water could be hot 5 Connect the power supply and then open the water supply valve and turn on the boiler by pressing the CH mode button or DHW mode button Cleaning the DHW Inlet Filter Recommended more a time per year 18 After clea...

Page 19: ...s too loud 1 Adjust the hot water temperature 2 When the hot water is used for multiple places at once the volume of the hot water would decrease 3 Adjust the amount of cold water to be mixed 1 Is the DHW mode on 2 Is there water Supply to the boiler 3 Is the water pressure too low 4 Is the water supply valve not sufficiently opened 5 Is the water supply valve for cold water too opened 1 Is hot wa...

Page 20: ... When DHW is continuously used for 1 hour or more the DHW Mode Sign blinks Clean the CH return filter Check the gas shut off valve is opened Turn off the CH mode and then turn it on again Check the gas supply pressure Turn on other gas appliances Contact the gas supplier Stop the boiler for up to 30 minutes and then press the CH mode or DHW mode Button When the same condition is repeated contact t...

Page 21: ...ain When the same condition is repeated contact the Rinnai service Check the exhaust installation condition blockage twist Turn off the boiler and then turn it on again When the same condition is repeated contact the Rinnai service Press either CH or DHW mode button to turn it off and then turn it on again When the same condition is repeated contact the Rinnai service Press either CH or DHW mode b...

Page 22: ...ver 160217 ...

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