Troubleshooting; Spare Parts; Accessories - Honeywell F74CS Instrucciones De Montaje

Filtros y combinaciones de filtros
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11. Troubleshooting

11.1. FK74CS/FKN74CS
Problem
Water is escaping from the spring
bonnet
Too little or no water pressure
The outlet pressure set does not
remain constant
11.2. F74CS/FN74CS
Problem
Too little or no water pressure

12. Spare Parts

No. Description
1
Valve insert complete
2
Filter insert complete
Filter mesh 95/110 µm 1/2" - 11/4" AF74-1A
Filter mesh 50 µm
Filter mesh 200 µm
3
Clear filter bowl
complete
4
Pressure gauge
rear connection thread G1/4"
Range 0 - 16 bar
5
Wrench for removing
filterbowl and spring
bonnet
Honeywell GmbH
Cause
Diaphragm in valve insert is faulty
Shutoff valves upstream or downstream
from filter not fully open
Pressure reducing valve is not set to the
desired outlet pressure
Filter mesh dirty
Not fitted in flow direction
Filter mesh dirty
Valve insert, sealing ring or edge of
nozzle is contaminated or worn
Rising pressure on outlet (e.g. in boiler) Check check valve, safety group etc.
Cause
Shutoff valves upstream or downstream
from filter not fully open
Filter mesh dirty
Not fitted in flow direction
Part No.
1/2" - 11/4" D06FA-1B
1/2" - 11/4" AF74-1C
1/2" - 11/4" AF74-1D
1/2" - 11/4" KF74CS-1A
M74CS-A16
ZR74CS
GB
Remedy
Replace valve insert
Open the shutoff valves fully
Set outlet pressure
Reverse rinsing
Fit filter in flow direction (note direction of arrow
on housing)
Reverse rinsing
Replace valve insert
Remedy
Open the shutoff valves fully
Reverse rinsing
Fit filter in flow direction

13. Accessories

DA74C/CS Rotatable connector piece
For connection of retrofit filters and filter combina-
tions
DA74CS for connection size 1/2"
DA74C for connection sizes 3/4", 1", 11/4"
Z74S-AN Automatic reverse rinsing actuator
For automatic filter cleaning at presettable
intervals
12
MU1H-1156GE23 R1111

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Fn74csFk74csFkn74cs

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