SB5Y - Circulation pump Baxi - Free user manual and instructions

Product type	Domestic hot water circulator, canned rotor pump
Brand and model	Baxi SB5Y
Supply voltage	230 V single phase, 50 Hz
Protection rating	IP 42
Connection	Threaded R 1/2", construction length 84 mm (type A/C: 138 mm)
Max. service pressure	10 bar
Fluid temperature range	+2 °C to +65 °C (temporary +70 °C for up to 2 h)
Max. ambient temperature	+40 °C
Max. water hardness	36 °fH
Integrated functions	Non-return valve on discharge side, shut-off valve on suction side
Mounting	Vertical or horizontal position (see manual), arrow for flow direction
Electrical connection	Must be carried out by a qualified electrician
Bleeding	Automatic after a few minutes of operation
Maintenance	External cleaning with a slightly damp cloth, without any cleaning products
Replacing motor head	Possible without draining, close the shut-off valves
Common faults	Motor blocked by deposits, presence of air, faulty power supply
Safety	Instructions: cut off power before servicing, do not open the motor
Material	Cast iron body, canned rotor, thermal insulation supplied
Supplied accessories	Thermal insulation shell, sealing rings, connector, manual

Frequently Asked Questions - SB5Y Baxi

What is the supply voltage of the Baxi SB5Y pump?

The pump operates at 230 V single phase, 50 Hz. Make sure the power supply matches before connection.

How to install the pump correctly?

Install the pump in a well-ventilated location, protected from frost and dust. Follow the flow direction indicated by the arrow on the body. For optimal operation, the motor head should be facing downwards (connector in the lower position).

How to connect the pump electrically?

The connection must be carried out by a qualified electrician. Cut off the power supply before any intervention. Open the connector as shown in the manual (Fig. 8) and make the connections according to the diagrams (Fig. 7a to 7e).

How to bleed air from the pump?

The pump bleeds automatically after a few minutes of operation. If noises persist, you can perform 5 on/off cycles of 30 seconds each to speed up bleeding. Short-term dry operation does not damage the pump.

What to do if the pump does not start?

First check the electrical supply (fuses, circuit breaker). If the supply is correct, the motor may be blocked by deposits. Have the pump disassembled by a professional to clean the impeller.

Why is the pump making abnormal noise?

Noises can come from deposits in the hydraulic circuit, presence of air, or lack of water. Check that the shut-off valves are fully open and bleed the air. If the problem persists, a professional must check the pump.

How to replace the motor head?

Turn off the electrical supply and let the pump cool down. Close the shut-off valves (diagonal position), disconnect the connector and unscrew the head. Replace with an original head. Caution: hot water may escape – proceed with care.

How to clean the pump?

Clean the exterior with a slightly damp cloth, without using any cleaning products. Never immerse the pump in water or other liquid.

What are the essential safety instructions?

Before any intervention, cut off the electrical supply and secure it against restart. Do not modify the pump, use only original parts. The electrical connection must be carried out by an electrician.

How to dispose of the pump at end of life?

In accordance with regulations, do not dispose of the pump with household waste. Recycle it at an approved collection point or municipal service. Consult your retailer for more information.

USER MANUAL SB5Y Baxi

Installation, Assembly and

Operation Instructions for the INSTALLER and USER

6%；6%；

1.1 About these instructions

Read through these instructions completely before installation. Non-observation of these instructions can result in injury to persons and damage to the pump/unit.

Once installation work is complete, pass the instructions on to the end user.

Keep the instructions near the pump. They can be used as a reference if problems occur later.

We accept no liability for damages resulting from failure to follow these instructions.

1.2 CE Declaration of Conformity

The design and operation of this product conform to the applicable European directives and supplementary national requirements. Conformity has been demonstrated.

The Declaration of Conformity can be viewed at www.baxi.es or alternatively can be requested from your local BAXI sales office.

1.3 Safety information

Important safety information is indicated as follows:

DANGER: Indicates a danger to life due to electrical current.

WARNING: Indicates a possible danger to life or injury.

CAUTION: Indicates possible risks to the pump or other items.

NOTE: Highlights tips and information.

1.4 Qualification

The pump may only be installed by qualified personnel. This product may not be commissioned or operated by persons with insufficient accountability (including children) or who do not possess the relevant specialist knowledge. Exceptions are only permitted on appropriate instruction from safety-responsible persons. The electrical connection may only be established by a qualified electrician.

1.5 Regulations

The current versions of the following regulations must be observed when installing the equipment:

• Accident prevention regulations
• Worksheets
• Other local regulations

1.6 Conversion, spare parts

The pump must not be technically modified or converted. It is not permitted to open the pump motor by removing the plastic lid. Only use original spare parts.

1.7 Transport

Unpack and check the pump and all accessories upon receipt. Report any damage sustained in transit immediately.

Dispatch the pump in the original packing only.

1.8 Electrical current

There is a danger of an electric shock when working with electrical current. Therefore:

• Switch off the power before beginning work on the pump and make sure that it cannot be switched on again accidentally.
• Do not kink or nip the power cable or allow it to come into contact with heat sources.
• The pump is protected against drips in accordance with protection class IP 42. Protect the pump against water spray. Do not immerse in water or other fluids

2 Technical Data

2.1 Type key

SB-4X Series:

Standard secondary hot water circulation pump, glandless pump with check valves

2.2 Connections (Fig. 1)

SB-4X

Screwed connection: 15 (Rp 12 ) and check valves

2.3 Data

	SB-4X
Mains voltage	1 ~ 230 V / 50 Hz
Protection class	IP 42
Nominal diameter of connecting pipes	R 1⁄2
Installation length	84 mm (Type A/C: 138 mm)
Max. permissible operating pressure	10 bar
Permitted fluid temperature range	+2°C to +65 °C in short-term operation to 2 hours 70 °C
Max. ambient temperature +40 °C	C
Max. permitted hardness in secondary hot water circulation systems	36° fH

See name plate or catalogue for further information.

2.4 Scope of delivery

• Pump
  Thermal insulation shell
  Sealing rings
• Connector
• Installation and operating instructions

3 Principle of operation

3.1 Application

This circulator is suitable for drinking water only.

3.2 Functions (Fig. 2)

Valves

The SB-4X is equipped with a non-return valve (1) on the pressure side and with a stop valve (2) on the suction side. When exchanging the motor head (3), it is sufficient to cut the power by unplugging the connector (5) and to close the stop valve at the rotating slot (4). The motor head can then be simply unscrewed Page 16.

4 Installation and electrical connection

4.1 Mechanical Installation

DANGER: Before starting work, make sure that the pump has been disconnected from the power supply.

Installation site (Fig. 3)

Provide a weatherproof, frost-free, dust-free and well-ventilated room for the installation. Choose an installation site that is easily accessible.

CAUTION: Dirt can cause the pump to fail. Flush the pipe system before installation.

NOTE: The stop valve and non-return valve are preinstalled.

1. Prepare the installation site so that the pump can be installed without being exposed to mechanical stresses.

2. Choose the right installation position - only as shown in (Fig. 3 A). The arrow on the back of the housing indicates the direction of flow.

Turn the motor head or remove it (Fig. 4)

1. Release the union nut - unscrew it completely if necessary.

CAUTION: Do not damage the housing seal. Replace damaged seals.

1. Turn the motor head so that the connector points downwards.

CAUTION: If the position is wrong, water can penetrate and destroy the pump.

1. Tighten the union nut again.

Open the stop valve (Fig. 5)

1. Turn slot (1) with a screwdriver so that it is parallel to the direction of flow.

NOTE: To close, turn the slot so that it is across the direction of flow.

1. Fit the thermal insulation shell.

CAUTION: The plastic parts of the motor may not be heat-insulated in order to protect the pump from overheating.

Connecting (Fig. 6)

1. Connect the pipework.

CAUTION: For the versions with stop and non-return valves, these are already pre-installed and sealed with a tightening torque of 15 Nm (hand-tight). Screwing with excessive tightening torque destroys the valve screw connection and the O ring. When installing the valve, use a fixed spanner to prevent twisting.

4.2 Electrical connection

DANGER: Only a qualified electrician is allowed to work on the electrical connection. Before establishing the connection, make sure that the connecting cable is dead.

Establish the electrical connection as follows: (Fig. 7a - Fig. 7e)

Open the connector as follows: (Fig. 8)

4.3 Filling and venting

1. Fill the system
2. The pump rotor space vents automatically after a short time in operation. This may cause noises. If necessary, switch off and on repeatedly to accelerate the bleeding. Dry running for short periods will not harm the pump.

5 Maintenance/faults

Cleaning

Clean the outside of the pump with a slightly damp cloth only. Do not use detergents.

Replacing the motor head

WARNING: When removing the motor head or pump, hot fluid may spurt out under high pressure. Allow the pump to cool down beforehand.

Close the stop valves before removing the pump Page 16.

NOTE: When the motor is removed and running, noises and a change in rotation may occur. This is normal for this situation.

Faultless operation can only be guaranteed when the pump is operated in fluid.

Replacing the motor head Page 16.

Order the service motor from a specialist retailer.

Faults	Causes	Remedies
Pump does not start.	Interruption in the power supply, short-circuit or defective fuses.	Have the power supply checked by a qualified electrician.
	Motor is blocked, e.g. by deposits from the water mains.	Have the pump removed by a qualified technician → Page 16. Check that the impeller can move by turning it and rinse out the dirt that has accumulated.
Pump is making noises.	Motor scraping, e.g. through deposits from the water mains.
	Running dry, too little water.	Check the check valves, they must be fully open.
	Air in the pump.	Switch the pump on/off 5 times for 30 s in each case.

NOTE: If you cannot remedy the fault, contact a specialist retailer.

6 Disposal

Damage to the environment and risks to personal health are avoided by the proper disposal and appropriate recycling of this product.

• Use public or private disposal organisations when disposing of the entire product or part of the product.
• For more information on proper disposal, please contact your local council or waste disposal office or the supplier from whom you obtained the product.

1 Sécurité

2.2 Raccordements (Fig. 1)

SB-4X

Lieudemontage(Fig.3)