Rinnai 24e User Manual

Installation and User Manual

Infinity 24e

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.

RINNAI UK WARRANTY

As the purchaser of this high quality Rinnai Water Heater you are provided with the following conditional guarantee.

Standard Use

Commercial Use

Definition of Standard Use.

The warranty period allocated under Standard Use is based on Domestic and Light Commercial hot water usage. Rinnai Standard Use warranty periods apply only where Rinnai water heaters are installed in domestic and light commercial situations at operating temperatures below 65 storage cylinders or building flow and return systems.

The warranty shall apply to any Rinnai water heater from the Infinity range used in this way.

Definition of Commercial Use.

The warranty period allocated under Commercial Use are for Infinity water heaters installed at premises such as commercial and industrial buildings, cafes, caravan parks, and sporting complexes. Commercial Use warranty applies to:

Water heaters supplying a central shower block Water heaters supplying kitchens used for the bulk preparation of food. Water heaters set to 65 Water heaters used in commercial or industrial processes. Any application that uses Rinnai water heaters in conjunction with storage tanks Any application that uses Rinnai water heaters in conjunction with a flow / return system. Water heaters installed as components of centralised bulk hot water systems.

Rinnai Infinity units used in Commercial Situations are only subject to a 1 year warranty across the board. Commercial situations should be supplied by the Rinnai HD range.

No Rinnai warranty will cover faults arising from improper installation or gas supply, water contaminants beyond defined limits, environmental factors, plumbing fittings, or other outside influences of which Rinnai is not responsible. Service calls for these issues will be chargeable.

Heat Exchanger All Other Parts

Parts Labour Parts Labour

3 Years 1 Year 3 Years 1 Year

24e

1 Year 1 Year 1 Year 1 Year

24e

C and do not include installations incorporating

C or higher.

Description pH

Maximum Recom-

mended Levels

6.5 - 9.0 600 mg/litre 200 mg/litre 300 mg/litre 10 mg/litre 20 mg/litre 150 mg/litre 1 mg/litre

Total Dissolved

Solids (TDS)

Total Hard-

ness

Chlorides Magnesium Calcium Sodium Iron

CONTENTS

Rinnai UK Warranty..……………………..

Unpacking Rinnai Water Heater…………

Installation Instructions……………………

Flue Requirements………………………...

Dimensions…………………………………

Technical Details..…………………………

Features and Benefits…………………….

Important Information……………………..

Operation without Remotes………………

Temperature Controls……………………..

Testing………………………………………

Gas Pressure Setting……………………..

Dip Switch Setting…………………………

Error Messages……………………………

Restarting the Rinnai Water Heater……..

Wiring Diagram…………………………….

Diagnostic Points…………………………..

Specification………………………………..

Service Contact……………………………

Commissioning Check List………………..

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UNPACKING RINNAI WATER HEATER

• After unpacking the appliance check for damage, if the heater is damaged contact

your supplier immediately. Do not install a damaged appliance before checking with your supplier.

• One remote control and heater accessories pack are inside the carton.

• Check that the appliance supplied is the correct gas type for the installation. Refer

to the data plate located on the left-hand side of the appliance.

• Remove the heater and the accessories from the carton, and check that all the

parts are included . The remote control cable is provided with spade connectors.

Remote Control Parts

Quantity Diagram Description

Cable clamp

Cable Clamp

Spade connectors

Clamp screw

Temperature con-

troller MC-91-1A

Control cable 20

metres

Unit Mounting Fasteners

Quantity Diagram Description

Screw

INSTALLATION INSTRUCTIONS

IMPORTANT INFORMATION

1. Gas safety (Installation & Use) regulations 1998 are the ‘Rules in force’. In your own interest and that of safety, it is law that all gas appliances are installed by competent persons in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. Other persons should NOT attempt to install this equipment.

2. Unpack the appliance and check it carefully. If it appears to have any defects or damage DO NOT INSTALL, contact your supplier.

3. This appliance is for normal hot water supply only and should not be used as pool or spa water heater.

4. The heater must be installed in the vertical position with the gas and water connections on the underside pointing vertically downward.

5. Installation must be carried out in accordance with the current issue of the following:

Building regulations issued by the Department of the Environment and Building Standards (Scotland) Regulations. I.E.E. Wiring regulations for electrical installations. Gas safety (Installation and Use) Regulations current issue. BS 5546 BS 5440 BS 6891 BS 5482 BS 6700 Local byelaws Water regulations Health and safety at work etc. Act 1974

Such other specifications and regulations that may supersede or complement the

above documents.

Please be sure that you are fully aware of your obligations and responsibilities under these regulations.

INSTALLATION INSTRUCTIONS - POSITIONING

General Installation Information.

External Installations.

The Rinnai Infinity 24e is for external mounting only.

The unit is classed as a Category A3 flueless appliance as described by CEN CR1749. Although BS 5440 does not relate directly to heaters in this category the rules must be followed when positioning the appliance, especially with regard to other appliances, openings, and boundaries. Figure C.1 from BS5440-1:2000 is provided for your guidance.

The appliance must be mounted on a vertical wall or structure with the water and the gas connections on the underside pointing towards the ground.

THIS APPLIANCE MUST NOT BE USED AS A DOMESTIC SPA OR SWIMMING POOL HEATER.

Appliance Location.

The appliance should be placed as close as practicable to the most frequently used hot water outlet point or points to minimise the delay time for hot water delivery. For installations where the distance between the unit and hot water outlet points is considerable, the appliance can also be fitted in a 'flow and return system' which minimises the waiting time for hot water delivery. Alternatively, multiple appliances can be strategically placed to service outlet points with minimal delay time. Contact Rinnai for further information.

Location of the appliance flue terminal must be in accordance with the clearances shown on page 8. Ensure that the flue terminal and hot water outlet connection cannot be touched by children. The appliance must be clear of obstructions and shrubbery.

The wall or structure on which it is mounted must be capable of supporting the weight of the appliance (18 kg) and associated pipework. Ensure that suitable screws or bolts are used to secure the water heater to the wall. Bracket and fixing hole locations are shown on page 9. The top bracket has a keyhole slot so that the appliance can be hung on one screw, and then the other fixings can be added to secure the unit.

The appliance must be in an accessible location. Sufficient clearances shall allow access to, and removal of, all serviceable components. The appliance should not be mounted higher than 3.5 metres from the ground or floor level unless the customer can arrange permanent and safe access or can arrange another means of access, for example, by means of scissor or boom lifts.

Multiple heater installations can be installed with the heaters manifolded together.

The heater draws combustion air through the casing for the external model.

Heater guards and pipe cover boxes for security and safety are available from Rinnai.

INSTALLATION INSTRUCTIONS - CONNECTIONS

Water Supply.

Where the water supply pressure exceeds 12 bar, an approved pressure reducing device is required at the inlet of the appliance. To achieve the rated flow a minimum water supply pressure of 1.4 bar is required at the appliance inlet. The unit will operate at lower supply pressures but the rated flow will not be achieved. Contact Rinnai for 'gravity fed' or 'low pressure' hot water installations.

Water pipe sizing and layout should be designed correctly to ensure the given water flows from the Rinnai Infinity are available. All hot water pipework should be insulated to optimise maximum performance and energy efficiency.

Water Connection.

Connect the hot and cold water supply pipes. An approved isolation valve and strainer MUST be installed in the cold water inlet pipe. An approved isolation valve should be installed in the hot water outlet pipe. There must be a union or release fitting on the heater side of the isolation valves. A non return valve is not required unless dictated by local regulations. A pressure relief valve should be installed in the pipework to discharge safely into a suitable drain when the system has a flow and return, or tank.

Positions of the cold water inlet, hot water outlet and gas connections are shown on page 9. All connections are ¾ inch BSP. This is NOT an indication of the pipe sizes required.

If the heater is in a hard water area a suitable water conditioning device should be installed to prevent the build up of limescale within the heat exchanger. Heat exchangers damaged by scaling are not covered by the manufacturers guarantee. Guidelines are given below. If the local water exceeds these values the heater must be protected.

Description pH

Maximum Recommended

Levels

6.5 - 9.0 600 mg/litre 200 mg/litre 300 mg/litre 10 mg/litre 20 mg/litre 150 mg/litre 1 mg/litre

Total Dissolved

Solids (TDS)

Total Hardness Chlorides Magnesium Calcium Sodium Iron

Gas Connection

Check pipe sizing required for the heater input. The heat input for the Infinity 24e is 52 kW. Refer to BS6891 (Natural Gas) and BS5482 (Propane) for guidance on correct pipe sizing calculation.

Check that the size of the gas meter and pipework will be sufficient for all appliances on the main. Sufficient gas must be available at the appliance if correct operation is to be expected. An approved gas isolation valve must be fitted at the gas inlet. A union or release fitting should be installed after the isolation valve.

Electrical Connection.

The appliance must be earthed. The appliance is suitable for 230VAC – 50hz mains only and all wiring must be carried out to the I.E.E regulations latest edition. The heater electrical supply must be provided with a fused (3A) local isolator with a contact separation of 3mm minimum on all poles for servicing. Observe polarity and ensure that wiring is correctly restrained.

FLUE REQUIREMENTS - POSITIONING

Dimension Terminal Position Distance

A Directly below an opening, air brick, opening windows, etc. 300mm

B Above an opening, air brick , opening window, etc. 300mm

C Horizontally to an opening, air brick , opening window, etc. 300mm

D Below gutters, soil pipes or drain pipes. 75mm

E Below eaves. 200mm

F Below balconies or car port roof. 200mm

G From a vertical drain pipe or soil pipe. 150mm

H From an internal or external corner. 200mm

I Above ground, roof or balcony level. 300mm

J From a surface facing the terminal. 600mm

K From a terminal facing a terminal 1200mm

M Vertically from a terminal on the same wall. 1500mm

N Horizontally from a terminal on the same wall. 300mm

From an opening in a car port. ( e.g. door, window) into a dwelling

1200mm

O From the wall on which the terminal is mounted N/A

P From a vertical structure on the roof. N/A

Q Above an intersection with roof. N/A

DIMENSIONS

TECHNICAL DETAILS

* Factory Setting **Minimum operation flow based on temperature setpoint and inlet conditions.

Infinity Model

Installation External

Nat Gas Press Low 0.8 mbar

Nat Gas Press High 9.0 mbar

LPG Press Low 1.7 mbar

LPG Press High 22.6 mbar

Height 600 mm

Width 350 mm

Depth 170 mm

Weight 18 kg

Flue System Forced Exhaust

Temp. Range Controllers 37 - 75 deg C

Temp. Range without Controllers

Ignition

Gas Consumption Low

Nat Gas 5.8 kW

LPG 5.8 kW

Gas consumption High

Nat Gas 52 kW

LPG 52 kW

Max Flow raised 33C 18 L/min

Min Operation Flow 2.7** L/min

Water Pressure Nom. 1.4 - 10 bar

Power Supply 230 V / 50 Hz

Elec. Consumption Standby (with 1 remote connected)

Elec. Consumption Run 55 Watts

Elec. Consumption Anti-frost Heaters On

Infinity 24e

37,40,43,50,

55*,65,75

Direct Electronic Ignition

6 Watts

100 Watts

Units

deg C

FEATURES AND BENEFITS

Congratulations on purchasing the Technologically Advanced, Temperature Controlled, Rinnai Hot Water System.

• The Rinnai Infinity 24e NEVER RUNS OUT of hot water. As long as electricity,

water, and gas supplies are connected, hot water is available when hot water taps are open.

• Built into the main micro-processor is the facility to LIMIT THE MAXIMUM

TEMPERATURE of the hot water supplied. The water temperature may be limited to

various maximum temperatures. This is particularly useful when the hot water unit is installed where young children or the infirm may be using the hot water. The Infinity 24e is delivered with a preset temperature of 55 can be changed by an authorised person. For further information, please contact Rinnai.

• The Rinnai Infinity external unit is a powered flue appliance. This makes it

COMPACT, saving both floor and wall space.

• The temperature of outgoing hot water is CONSTANTLY MONITORED by a BUILT-

IN SENSOR. If the temperature of the outgoing hot water rises to more than 3°C

above the selected temperature the burner is shut OFF and only turned ON again when the temperature falls to below the selected temperature.

• The burner lights automatically when the hot water tap is opened, and distinguishes

when the tap is closed. IGNITION IS ELECTRONIC, so there is no pilot light. When the hot water tap is off, no gas is used.

• Up to three temperature controllers can be mounted remotely from the heater. This

offers the following additional features:

Localised temperature setting. Diagnostic message.

• ‘Deluxe’ Temperature Controllers are an optional extra. These provide functions

including Bath Fill, Voice Prompt, and Clock Setting.

• Temperatures selected at the controllers are retained in the SYSTEM MEMORY.

• Operating NOISE LEVEL IS VERY LOW.

• ERROR MESSAGES ARE DISPLAYED on the Temperature Controllers, assisting

with service.

• FROST PROTECTION device built in as standard.

C. If required, the temperature limits

IMPORTANT INFORMATION

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 levels.

NOT

Water temperature over 50ºC can cause severe burns instantly or even death from scalding.

Children, disabled and the elderly are at the highest risk of being scalded by excessively hot water.

Always test the temperature of the water before bathing or showering.

Burns from hot water taps can result in very severe injuries to young children.

Hot water at 65°C can severely burn a child in less than half a second. At 50°C it takes five minutes.

Burns can occur when children are exposed directly to hot water or when they are placed into a bath which is too hot.

Do stay with children whenever they are in the bathroom.

• Consider child—resistant taps

Do take them out of the bathroom if you need to answer the phone or door.

Do test the temperature of the water

• Consider reducing the

with your elbow before placing your child in the bath.

Do make sure that the tap is turned off tightly.

Do consider setting your Rinnai Infinity 16e at a maximum temperature of 50

Do install a child proof tap cover

OR,

Do install a child resistant tap.

Do not leave a toddler in the care of another small child. The older child may not have safely set the temperature.

or inexpensive tap covers,

both of which prevent a child’s hand from turning on the tap.

temperature of the water supplied to the hot tap to

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.

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