BAXI 3-Way Valve 1 Inch 1/4 For Domestic Hot Water User Manual

June 9, 2024
BAXI

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BAXI 3-Way Valve 1 Inch 1/4 For Domestic Hot Water

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3-WAY VALVE 1″1/4 FOR DOMESTIC HOT WATER

GENERAL WARNING

These appliances have been designed to chill and/or heat water and must be used in applications compatible with their performance characteristics; these appliances are designed for residential or similar applications.
Incorrect installation, regulation and maintenance or improper use absolve the manufacturer from all liability, whether contractual or other-wise, for damage to people, animals or things.
Only those applications specifically indicated in this list are permitted Read this manual carefully. All work must be carried out by qualified personnel in conformity with legislation in force in the country concerned.
The warranty is void if the above instructions are not respected and if the unit is started up for the first time without the presence of personnel authorized by the Company (where specified in the supply contract) who should draw up a “start-up” report.
The documents supplied with the unit must be consigned to the owner who should keep them carefully for future consultation in the event of maintenance or service.
All repair or maintenance work must be carried out by the Company’s Technical Service or qualified personnel following the instructions in this manual.

WAIVER OF LIABILITY

This publication is the sole property of the manufacturer.
Any repro-duction or disclosure of such is strictly prohibited without
the written authorization of the manufacturer.
This document has been prepared with maximum care and attention paid to the content shown.
Nonetheless, manufacturer waives all liability deriving from the use of such document.

FUNDAMENTAL SAFETY RULES

When operating equipment involving the use of electricity and water, a number of fundamental safety rules must be observed, namely:
The unit must not be used by children or by unfit persons without suit-able supervision.
Do not touch the unit with bare feet or with wet or damp parts of the body.
Never perform any cleaning operations before having disconnected the unit from the mains power supply.
Do not modify safety or control devices without authorization and instructions from the manufacturer.
Do not pull, detach or twist the electrical cables coming from the unit, even when disconnected from the mains electricity supply.
Do not open doors or panels providing access to the internal parts of the unit without first ensuring that the switch QF1 is in the OFF position (see the wiring diagram).
Do not dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard.
Power supply: the cross section of the electrical cables must be adequate for the power of the unit and the power supply voltage must correspond with the value indicated on the respective units. All units must be earthed in conformity with legislation in force in the country concerned.
Water connections should be carried out as indicated in the instructions to guarantee correct operation of the unit.

RECEIVING THE PRODUCT

When the items are consigned by the carrier, check that the packag-ing and the unit are undamaged.
If damage or missing components are noted, indicate this on the deliv-ery note. A formal complaint should be sent via fax
or registered post to the After Sales Department within eight days from the date of receipt of the items.
Do not dispose of packaging materials in the environment or leave them within reach of children as they may represent a hazard.

USE
Are used for the regulation of hot water to an domestic hot water tank.

CONTENT OF THE KIT
Nr. 1 230VAC ON/OFF servo control
Nr. 1 3-way valve body G 1”1/4 male
Nr. 2 M6 nuts
Nr. 1 Extension kit
Nr. 1 Instruction sheet

TECHNICAL SPECIFICATIONS

Valve body|
---|---
Operating pressure| PN16 for water at 90°C.

PN20 for chilled water

Leaks| None
Fluid temperature| Water 0°C to 90°C
Angle of rotation| 90°
Thread| Gas UNI ISO 228
Valve body and fitting| Brass OT58, UNI575/65
Stem| Brass
Gasket| PTFE seat, EPDM O-ring
Ball| Chrome-plated brass
Weight| 1.28 kg
|
Servomotor|
Power supply| 230VAC, +10% – 15%
Frequency| 50Hz
Power consumption| 4 VA
Travel time (open/close)| 10 s
Free auxiliary contact (end travel)| 230V – 1A (resistive)
Allowable operating temperature| 0 to + 50 °C
Allowable transport and storage temperature| – 10 to + 80 °C
Allowable humidity| Class G, DIN 40040
Index of protection| IP 54
Connection cable| 6 x1 mm2, 0.8 m long
Manual control| manual open/close control
Weight| 0.45 kg

VALVE BODY AND SERVOMOTOR INSTALLATION

For correct assembly of the valve, any position is allowed except for the servomotor facing downwards.

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The 3-way valves must always be used as selector valves on the outlet, also see “operating diagrams” in the heat pump installation manual.

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The reference notch on the stem of the valve always must be facing towards the DHW storage cylinder.

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In the event of malfunctions, reposition the ball.
To do this, remove the servo motor and turn the ball 180° by hand. The servo control features manual control.
Press the button and turn the knob to open or close the valve manually.

  1. Fasten the two hexagonal spacers to the servomotor.
  2. Place the extension in the insulating cylinder.
  3. Fit the extension kit to the servomotor.
  4. Fasten the servomotor to the valve body using the screws supplied.

ELECTRICAL CONNECTION FOR PBM2-i and PBMC-i

Wiring diagram
  • Auxiliary contact CLOSED = valve position to DHW storage

  • Auxiliary contact OPEN = valve position to system

  • Auxiliary contact CLOSED = valve position to DHW storage

  • Auxiliary contact OPEN = valve position to system

  • Auxiliary contact CLOSED = valve position to DHW storage

  • Auxiliary contact OPEN = valve position to system

GRAPH OF VALVE PRESSURE DROP

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DIMENSIONS

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36061 Bassano del Grappa (VI) – ITALIA
Via Trozzetti, 20
Servizio clienti: tel. 0424-517800 – Telefax 0424-38089 www.baxi.it

References

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