Eminent 35 R - Central heating boiler Nibe - Free user manual and instructions

Product Type	Central Heating Boiler
Brand	Nibe
Model	Eminent 35 R
Heating Output	35 kW
Fuel Type	Natural Gas
Power Supply	230 V ~ 50 Hz
Dimensions (H x W x D)	700 x 400 x 300 mm
Weight	35 kg
Installation Type	Wall-hung
Efficiency	Up to 95% (condensing)
Functions	Central heating, domestic hot water (optional external tank)
Control System	Electronic with room thermostat connection
Safety Features	Overheat protection, frost protection, safety valve
Maintenance	Annual service recommended, clean heat exchanger
Cleaning	Wipe exterior with damp cloth, no solvents
Spare Parts	Available from Nibe authorized distributors

Frequently Asked Questions - Eminent 35 R Nibe

What fuel does the Nibe Eminent 35 R use?

The Nibe Eminent 35 R is designed for natural gas. Ensure your gas supply is compatible before installation.

What is the heating output of this boiler?

The heating output is 35 kW, suitable for medium to large homes.

Is the Eminent 35 R a condensing boiler?

Yes, it is a condensing boiler with efficiency up to 95%, recovering heat from flue gases.

How do I reset the boiler after a fault?

Press the reset button on the control panel after identifying and resolving the fault. Refer to the manual for error codes.

What maintenance is required?

Annual servicing by a qualified engineer is recommended. Clean the heat exchanger and check pressure regularly.

Can the boiler provide domestic hot water?

The boiler itself provides central heating only. For domestic hot water, an external hot water tank or combi version (not this model) is needed.

What is the recommended water pressure?

The normal operating pressure is between 1.0 and 1.5 bar. If it drops below 0.5 bar, repressurize using the filling loop.

How do I troubleshoot error codes?

Error codes are displayed on the control panel. Check the manual for a list of codes and their meanings. Common issues include ignition failure or overheating.

Is professional installation required?

Yes, installation must be carried out by a Gas Safe registered engineer (in the UK) or qualified professional to ensure safety and warranty.

Where can I find spare parts?

Spare parts are available through Nibe authorized distributors or service centers. Use only genuine parts for safety.

USER MANUAL Eminent 35 R Nibe

SE MONTERINGS- OCH SKÖTSELANVISNING EMINENT
FI ASENNUS- JA HOITO-OHJEET EMINENT
GB INSTALLATION AND MAINTENANCE INSTRUCTIONS EMINENT
NL INSTALLATIE- EN ONDERHOUDSINSTRUCTIES EMINENT

Illustration of a NIBE water heater with no visible text or symbols on the body

MONTERINGS- OCH SKÖTSELANVISNING

EMINENT

E/CU/R 35, 55, 100, 120

3 Plastlock, anod (EMINENT-E)

Hand holding a tool applying material to a circular object (no text or symbols visible)

Tömning

Diagram of an electronic component with labeled pins and a black arrow indicating a specific component.

Line drawing of a hand pointing at a device with a circular base and arrow, no text or symbols present

Tyhjennys

Diagram of an electronic component with labeled pins and a black arrow indicating a specific component.

Anturien asennus

Dimensions and location of components

41 45 42 25 1 5 2 22 43 23 95 184 54 40 467 3 40 min 145 6 min 200 455 34 12 EMINENT 35 = 565 EMINENT 55 = 750 EMINENT 100 = 1120 EMINENT-R 120 = 1304

* Required space (EMINENT-E) for replacing/checking the sacrificial anode.
35 litres: 180 mm
55 litres: 250 mm
100 litres: 390 mm
The chain anode can be used for vertical hanging installation, which only requires 180 mm above the water heater.

The serial number (95), should always be stated with all correspondence with NIBE.

072

List of components

1 Power cord with earthed plug, length 850 mm

2 Plastic cover, electrical connection box

3 Plastic cover, anode (EMINENT-E)

5Thermostat/temperaturelimiter

6Immersionheater

12Hangingbracket

13Securingbracket

22Shutoff/non-returnvalve

23 Safety/drainage valve

25 Mixing valve

40 Sacrificial anode (EMINENT-E)

41 Cold water connection, compression fitting ∅15 mm

42 Hot water connection, compression fitting ∅15 mm

43 Connection safety/drainage valve, compression ring coupling ∅15 mm

45 Venting screw (for air supply when draining)

95 Serial number sticker

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Rights to make any design or technical modifications are reserved.

©NIBE 2015.

Installation

Mounting

It is recommended that the water heater is installed in a room with existing floor drainage. The water heater can be mounted hanging vertically on a flat surface (with the connections downward) or lying horizontally (with the reverse down).

Use the supplied suspension brackets (12) when hanging on a wall, these are secured first ( 8 - 10 mm screws), see the figure below. The water heater is then mounted on the bracket. The water heater can now be slid sideways to some extent, which facilitates the fitting of the pipes.

For further fastening, the enclosed securing bracket (13) is fitted on the wall against the top of the water heater as a tip guard, see the figure below.

An area of 200 mm is required in front of/under the water heater for service work.

* EMINENT-E requires free space behind /above the water heater for inspection of the sacrificial anode (40). See the section "Care and maintenance - Sacrificial anode".

12

13

Pipe installation

The water heater is equipped for compression ring couplings for copper or plastic pipes. Internal support bushes should be fitted when a plastic or annealed copper pipe is used.

All necessary valve equipment: shut-off/non-return valve, safety/drain valve and the mixing valve installed on delivery.

An overflow pipe should be routed from the safety valve to an appropriate drain. The dimension of the overflow pipe must be the same as the safety valve's, (∅15 mm), the pipe must be routed to prevent water pockets, and be frost-proof and well supported.

If uncertain contact pipe installer alternatively see applicable standards.

If the hot water heater is installed without a mixing valve, the thermostat setting must be such that the tap water temperature does not exceed 65 °C. Should a higher temperature be required, follow the applicable directions.

Filling

The water heater must be filled with water before the mains supply is switched on. Filling takes place as follows:

1 Check that the bleed screw°(45) is tightened.
2 Check that the safety/drainage valve (23) is closed.
3 Open the shut off valve by turning the knob (22) anti-clockwise.
4 Bleed the water heater by opening a hot water tap in the system. When only water comes out of the tap this can be closed.

The water heater is now filled and the power can be switched on.

Setting the mixing valve

Increase/decrease the tap water temperature by turning the mixing valve knob (25) anti-clockwise/clockwise. Setting range approx. 50 – 65°C.

Electrical installation

NOTE!

Electrical installation and service must be carried out under the supervision of a qualified electrician.

The water heater is connected to an earthed socket power cord for 1 phase installation (1 kW).

1-phase installation provides the best service life for the immersion heater.

If the power cable is damaged, replacement must be carried out under the supervision of a qualified electrician.

The lowest point of the power cord should be below the power socket when you connect the hot water heater to the socket. This prevents any drops of water from being led into the socket.

If 3 kW is required hot water heater is connected with fixed installation (2x400V). At fixed installation the water heater is preceded by an isolator (at least with signal lamp) with at least 3 mm breaker gap. Existing connection cable can be used if one cuts off the plug.

Electrical circuit diagram

Thermostat/temperature limiter (5)

Immersion heater (6)

400VAC L1 L2 PE 230VAC L N PE B A B 2 1

Installing a thermostat

A setting of 60 °C (max about 80 °C ) is recommended for the best operating conditions.

approx. 60 °C LFK

Maintenance

Safety valve

The safety valve (23) must be inspected regularly, about 4 times a year, to prevent clogging. The check is made by turning the safety valve's knob anticlockwise, water should then flow through the overflow pipe. If this does not happen then the safety valve is defective and must be replaced.

The safety valve sometimes releases a little water after hot water has been used. This discharge is caused by the expansion of cold water entering the water heater, resulting in a pressure increase, whereby the safety valve opens.

Sacrificial anode (only EMINENT-E)

The water heater is equipped with a magnesium anode (40) that provides extra corrosion protection. The anode is used partly because it sacrifices itself for pores in the enamel, partly because it uses itself depending on the chemical composition of the water.

Check the anode within a year. Then regularly in relation to its use. When the anode is new it has a diameter of approx. 21 mm. When this diameter has reduced, in the most consumed area, to less than 10mm the anode is consumed and must be replaced.

If the anode has not been consumed after a few years, it may be due to poor conductivity in the water and a water analysis is recommended.

NOTE!

The anode is a consumable.

Replacing/checking the sacrificial anode

The anode can be replaced/checked, without the water heater needing to be emptied, if there is a hot water tap in the pipe system situated below the water heater's highest point. If there is not a hot water tap or the water heater is installed horizontally it must be drained, see section "Draining".

1 Turn off the power to the water heater.
2 Open the shut off valve/ non-return valve by turning the knob (22) clockwise until it bottoms.
3 Open the hot water tap mentioned above.
4 Remove the plastic cover (3) and the insulation plug, see image.
5 The sacrificial anode (40) is unscrewed using the 27 mm, or 24 mm, socket.

When replacing the anode in tight spaces, a chain anode is available that only requires approx. 180 mm space above the water heater. The chain anode can only be used in vertically mounted water heaters and must be cut according to the table, see "Technical data".

Hand holding a pen striking a circular object on a base (no text or symbols visible)

Emptying

Draining is through the safety valve overflow pipe and is carried out as follows:

1 Turn off the power to the water heater.
2 Open the shut off valve/ non-return valve by turning the knob (22) clockwise until it bottoms.
3 Turn the mixer valve (25) fully anticlockwise.
4 Open the safety valve by turning the knob (23) slowly anticlockwise a quarter of a turn until it is fixed in the raised position.

NOTE!

Water splashes may occur at the overflow pipe.

5 Remove the vent screw (45) and open the hot water tap positioned lowest in the pipe system.

NOTE!

Hot water may squirt out of the air screw hole.

It can take a few minutes for draining to start.

To speed draining, air can be introduced via the vent screw (45).

Keep the valves' positions after the above actions until the water heater is to be used again.

A small amount of water may remain at the bottom of the water heater after performing draining stages 1–5.

NOTE!

The overflow pipe must be connected to pos (43).

25 45 22 42 41 380 43 23

Dealing with malfunctions

NOTE!

Electrical installation and service must be carried out under the supervision of a qualified electrician.

If the power cable is damaged, in order to prevent a hazard it must be replaced by the manufacturer, its authorised service agent or other qualified person.

Check the installation's fuses as well as the thermostat and mixer valve settings.

Wait a few hours without tapping any hot water and then check whether the temperature level has risen. If there is still no hot water, contact the installation engineer.

Resetting the temperature limiter

If the temperature limiter (5) tripped, the water heater must cool for at least one hour before it can be reset.

1. Remove the plastic cover (2).
2. Press the button on the temperature limiter lightly, max 15 N (approx. 1.5 kg).

5 6 Max. 15N 2

Max 15 N (approx. 1.5 kg)

Diagram of an electronic device with labeled components and a black arrow indicating a specific connection point.

Reconnecting sensors

If the immersion heater has been replaced, the sensors for the thermostat and temperature limiter must be re-installed in the order displayed in the image.

Service

For service, contact the installer. The serial number (95), (14 digits) and installation date should always be stated. Only electrical equipment supplied by NIBE AB in Markaryd may be used.

Technical specifications

IP 24 PED 97/23/EC

Volume (litres) 35 55 100 120
Max workingpressure (MPa/bar) 0,9/9
Voltage 230 VAC + PE / 2 x 400 VAC	+ PE
Enclosure class IP 24
Output (kW) 1/3
Fuses required at 1/3 kW (A) 6/10
Heating time to 45 °C at 1/3 kW*	(hours)	1,4/0,5	2,3/0,8	4,1/1,4	4,9/1,6
Heating time to 80°C at 1/3 kW*	(hours)	2,9/1,0	4,5/1,5	8,1/2,7	10,1/3,5
Net weight E/CU/R	(kg)	19/21/17	25/28/22	36/40/31	-/-/34
Sacrificial anode EMINENT-E	(mm)	165	280	435	-
Corrosion protection EMINENT-E		Enamel			-
Corrosion protection EMINENT-CU		Copper			-
Corrosion protection EMINENT-R		Stainless

* With incoming cold water of 10 °C.

Energy labelling

Supplier		NIBE AB
Model		EVH 16 - 35	EVH 16 - 55	EVH 16 - 100	EVH 16 - 120
Declared load profile		S	M	L	-/-/L
Water heating energy efficiency class E/CU/R		C/C/B	C/C/C	C/C/C	-/-/C
Water heating energy efficiency, _vh E/CU/R	%	34,2/33,7/35,6	36,5/36,5/37,0	37,3/37,3/38,1	-/-/37,8
Annual energy consumption water heating, AEC E/CU/R	kWh	539,6/547,8/518,6	1406,8/1407,7/1389,1	2748,3/2745,8/2688,9	-/-/2709,8
Thermostat setting	°C	60
Daily electrical consumption, Q_elec E/CU/R	kWh	2,56/2,61/2,44	6,57/6,58/6,47	12,77/12,76/12,54	-/-/12,54
Amount of hot water (40 °C), V40 E/CU/R	l	47/46/43	78/77/71	140/141/135	-/-/167
Sound power level L_W/A	dB	15
Applied standards		EN 50440

INSTALLATIE- EN ONDERHOUDSINSTRUCTIES

EMINENT

E/CU/R 35, 55, 100, 120

Technical diagram showing three-step installation of a water heater device with labeled components and hand positioning instructions.

Diagram of an electrical component with labeled pins and a black arrow pointing to a section, likely indicating a measurement or connection.

NIBE Energy Systems Ltd, 3C Broom Business Park, Bridge Way, Chesterfield S41 9QG

Tel: [phone] Fax: [phone] E-mail: [e-mail] www.nibe.co.uk

NIBE Energietechniek B.V., Postbus 634, NL 4900 AP Oosterhout

Tel: [phone] Fax: [phone] E-mail: [e-mail] www.nibenl.nl

© "EVAN" 17, per. Boynovskiy, Nizhny Novgorod

Tel./fax [phone] E-mail: [e-mail] www.nibe-evan.ru