resideo Braukmann Z74A Reverse Rinsing Actuator User Guide
- June 7, 2024
- resideo
Table of Contents
resideo Braukmann Z74A Reverse Rinsing Actuator User Guide
APPLICATION
The Z74A automatic reverse rinsing actuator provides fully automatic cleaning for Resideo F74C reverse rinsing filters and FK74C filter combinations. The reverse rinsing intervals are adjustable in sixteen steps between four minutes and three months. The Z74A has an emergency running function on power failure and offers the possibility of manual operation of the reverse rinsing function (only when batteries are fitted). Connection options are available for differential pressure, remote control and remote monitoring.
SPECIAL FEATURES
- Can be set to 16 different reverse rinsing intervals
- Set during manufacture to 45 day interval
- Automatic battery 1) run-on if mains supply fails
- Bayonet connection enables fitting without tools
- Sprayed water protection to IP55
- Manufactured with integral electrical suppression
- Additional PG 9 cable entry for connection of remote operation, remote monitoring or differential pressure control
TECHNICAL DATA
For fully automatic reverse rinsing of Resideo F74C respec.
FN74C filters and FK74C respec. FKN74C filter combinations.
Operating temperatures
Max. water temperature:| 70 °C
Specifications
Mains cable:| 1.5 metres
Batteries:| Four LR6-1.5 V-Mignon/AA size alkali-manganese batteries 1)
Battery life:| Approximately 3 years
Time intervals:| 4 minutes to 3 months
Ambient conditions:| 5 – 90% relative humidity, 0 – 60 °C
Protection type:| IP55 sprayed water
Protection class:| 1 DIN VDE 0700 -T1/ EN 60335-1
- Batteries are not supplied with the appliance. Batteries are not necessary if
automatic run-on in the event of power failure is not required. When batteries are fitted, the appliance should not be left unplugged for long periods.
CONSTRUCTION
Overview
| Components | Materials |
|---|---|
| Bayonet connection | – |
| Housing | High-quality synthetic material |
| Mains cable | – |
REVERSE RINSING
Reverse rinsing duration when mains operated approximately 25 seconds.
Reverse rinsing quantity at 4.0 bar operating pressure withF74C, FN74C, FK74C
and FKN74C.
Filter size| Drain connection| Drain pipe size|
Reverse rinsing quantity (litres)
---|---|---|---
3/4″, 1″, 11/4″| DN50| DN70| approx. 25
METHOD OF OPERATION
The Z74A opens or closes the ball valve according to the set time interval. The opening of the ball valve causes a differential pressure within the filter which activates the reverse rinsing function. The actuator close the ball valve again after the end of the reverse rinsing cycle. Four batteries can provide back-up protection. The batteries close the ball valve if power fails during the reverse rinsing function, thus preventing unwanted water loss.
TRANSPORTATION AND STORAGE
Keep parts in their original packaging and unpack them shortly before use.
The following parameters apply during transportation and storage:
Parameter
| Value
---|---
Environment:|
clean, dry and dust free
Min. ambient temperature:
| 0 °C
Max. ambient temperature:|
60 °C
Min. ambient relative humidity:
| 5 % *
Max. ambient relative humidity:|
90 % *
INSTALLATION GUIDELINES
Setup requirements
- In case the mains supply fails during the backwash the batteries (if they are fitted) provide the energy for closing the backwash ball valve. The battery charge should be checked regularly. At the latest after two years exchange the batteries with new ones
- In order to avoid flooding, it is recommended to arrange a permanent, professionally dimensioned wastewater connection
Installation Example
-
Fig. 1 Remote control
-
Fig. 2 Differential pressure switch
-
Fig. 3 Remote monitoring
Additional Connection Possibilities
The Z74A can be operated remotely using a volt-free changeover relay. Minimum holding time to operate reverse rinsing is one second. The reverse rinsing function of the Z74A can be operated whenrequired by a differential pressure switch with volt-free micro switch (e.g. Resideo FEMA type DDCM1). A differential pressure setting of 0.5 bar is recommended.
A pressure reducing valve must not be fitted between inlet and outlet pressure
pipework. A differential pressure switch may therefore not be used with an
FK74C.
For remote surveillance of the open and closed position of the ball valve a
central monitoring system with 0 to 10 V input is recommended. The maximum
permissible current is 10 mA.A signal value between 5 and 10 V indicates that
mains current is present and that the discharge valve is closed.
DIMENSIONS
Overview
| Parameter | Values |
|---|---|
| Filter size: | R |
| Weight: | kg |
- Cable length approx. 1.5 m
Note: All dimensions in mm unless stated otherwise.
ORDERING INFORMATION
The following tables contain all the information you need to make an order of an item of your choice. When ordering, please always state the type, the ordering or the part number.
- Connection type: 230 V, 50/60 Hz, 10 W
Contact Us
Manufactured for and on behalf of
Pittway Sàrl, Z.A., La Pièce 4,
1180 Rolle, Switzerland
by its authorised representative
Ademco 1 GmbH
For more information
homecomfort.resideo.com/europe
Ademco 1 GmbH, Hardhofweg 40,
74821 MOSBACH, GERMANY
Phone: +49 6261 810
Fax: +49 6261 81309
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>