Horstmann F328m, F322e Valve Installation and Operating Instructions
Below you will find brief information for Valve F328m, Valve F322e. The F328m/F322e valve with auxiliary switch has been designed to control the water circulation in fully pumped systems, which employs a single pump for both Hot water and Central heating circuits, by allowing the flow to either or both circuits. The F328m/F322e valve has a 5 core cable that can be colour-coded to connect to the system.
advertisement
▼
Scroll to page 2
CENTRAL HEATING ONLY. Set the cylinder thermostat to minimum or turn the HW off at the programmer. Set the room thermostat to maximum and turn the CH on at the programmer. The valve should close Port B. The boiler should fire, pump run and the pipe on the Port A side should get hot. HOT WATER AND CENTRAL HEATING. Set the room and cylinder thermostat to maximum and turn the HW and CH on at the programmer. The valve should be in the mid-position. The boiler should fire, pump run and the pipes on both Port A side and Port B should get hot. Reset both thermostats and the programmer to their normal settings. Please note the above assumes that both programmer and thermostats are being used. If this is not the case, ignore the action described for the item not fitted. ZO NE CO M IN PLU M IS STA S F SI ON LLA 328 IN TIO m / G IN N A F3 ST ND 28 RU e CT IO NS COMMISSIONING The F328m / F322e valve with auxiliary switch has been designed to control the water circulation in fully pumped systems, which employs a single pump for both Hot water and Central heating circuits, by allowing the flow to either or both circuits. INSTALLATION AND CONNECTION SHOULD ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED PERSON AND IN ACCORDANCE WITH THE CURRENT EDITION OF THE I.E.E. WIRING REGULATIONS. A CLASS ‘A’ SWITCH (HAVING CONTACT SEPARATION OF AT LEAST 3MM IN ALL POLES) MUST BE INCORPORATED IN THE FIXED WIRING AS A MEANS OF DISCONNECTING THE SUPPLY, NORMALLY AT THE CONSUMER UNIT. THE SYSTEM MUST BE APPROPRIATELY FUSED. WARNING : ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION SPECIFICATION Motor supply voltage: 230V AC, 50Hz Power consumption: <6.5W Lead supplied: 1 metre 5 core cable. Industry standard colours used Earth connection required. Olive Size: F228m - 28mm (Metric) F228e - 1 1/4 inch (Imperial) o Operating flow temperature: Up to 80 C Switch rating: 5 Amps o Email: [email protected] Website: www.horstmann.co.uk Page 4 Maximum ambient temperature: 50 C Maximum static pressure: 21 Bar Maximum differential pressure: 2 Bar Pipe fitting size: 28mm compression Actuator: Maximum time to power open - 20 seconds Maximum time to spring close - 10 seconds Override lever: For manual operating to open valve for system draining or filling. During normal operation, the lever must be in the auto position. Horstmann Controls Limited Bristol BS4 1UP t:0117 9788 773 - f:0117 9788 701 LEAFLET No P82419 ISSUE 1 Page 1 OPERATION Set the override lever to manual. Fill, test and thoroughly flush the system (See instruction under the Specification section located on page 4 of this guide). To remove the Actuator from the valve body please ensure that the override lever is placed in the override position. WIRING CONNECTIONS The 5 core cable fitted to the actuator can now be connected to the system following the simple colour-coded guide below. Wire Colour Blue Any Neutral supply. Orange ‘Call’ terminal of Cylinder stat if fitted, otherwise the HW ON terminal of the programmer - Also link to Pump/Boiler live. White ‘Call’ terminal of room stat if fitted, otherwise the CH ON terminal of the programmer Grey ‘Sat’ terminal of Cylinder stat if fitted, otherwise the HW OFF terminal of the programmer Valve position - In the event that mains power is disconnected the valve automatically spring-returns to the Hot Water only position (Port A). INSTALLATION AND OPERATING INSTRUCTIONS System Connection POSITIONING OF VALVE Yellow / Green Earth terminal of the wiring centre On new installations fit the valve ensuring that the actuator head is NOT below the horizontal level of the pipework and that flow is in the direction of the arrow. Also check that neither the open vent or the cold feed are isolated. This will ensure system and product safety at all times. Remember to make allowances for working, maintenance and replacement. FITTING OF VALVE BODY TO PIPEWORK Fit the valve body using the compression fittings provided. Tighten the compression nuts sufficiently to make a watertight seal, only gripping the valve by its body. Take care not to over tighten. FITTING OR REMOVAL OF ACTUATOR TO VALVE BODY PLEASE NOTE; Before beginning the installation, or any subsequent removal of the actuator, please ensure that the override lever, located on the side of the actuator is in the raised bypass position. Position the actuator on the valve body, taking care to line up the 4mm flat spindle, located on the valve body, with the receiving shaped slot located on the underneath of the actuator. The actuator guide holes should line up with the spigot on the valve body. The actuator locking mechanism will click into place, locking the head to the valve body. Page 2 An earth connection is required on the F328m and F328e valve. Ensure all connections are good and the screws secure. A torque of 0.75Nm is recommended for fixing the wires in place. NOTE: In the event that the F328m or F328e is being used in an unconventional system, the above connections may be incorrect. In this case, please seek advice. To check whether the valve is operating correctly, carry out the following checks after the system is filled and vented. Ensure that the override lever is back in the Auto position and the insert guide is removed. HOT WATER ONLY. Set the room thermostat to minimum or turn the CH off at the programmer. Set the cylinder thermostat to maximum and turn the HW on at the programmer. The valve should close Port A. The boiler should fire, pump run and the pipe on the Port B side should get hot. Page 3
advertisement
Key Features
- Control Water Circulation
- Single Pump for Hot Water and Central Heating
- 5 Core Cable for Connection
- Color-Coded Connections
- Manual Override Lever
- Spring-Return to Hot Water Position
Frequently Answers and Questions
How do I connect the valve to the system?
The 5 core cable fitted to the actuator can be connected to the system following the simple colour-coded guide below. Ensure all connections are good and the screws secure. A torque of 0.75Nm is recommended for fixing the wires in place.
What is the operating flow temperature of the valve?
The operating flow temperature of the valve is up to 80°C. The valve can handle a maximum static pressure of 21 Bar and a maximum differential pressure of 2 Bar.
How do I manually override the valve?
The override lever can be used to manually open the valve for system draining or filling. During normal operation, the lever must be in the auto position.
What happens if the mains power is disconnected?
In the event that mains power is disconnected the valve automatically spring-returns to the Hot Water only position (Port A).
Related manuals
Download
PDF
advertisement