Troubleshooting; Spare Parts - Honeywell NK300s Instrucciones De Instalación

TROUBLESHOOTING

Problem
No or too small water flow rate
Discharge valve opens without
reason (no fluctuation of inlet
pressure)
Discharge valve does not close
Water is escaping from spring hood Valve insert diaphragm damaged
The outlet pressure set does not
remain constant

SPARE PARTS

No. Description
1 Cartridge insert
complete
2 Check valve
3 Valve insert
complete (without
sieve)
4 Sealing ring set
(10 piece)
5 Blanking plug
with O-ring R1/4"
(5 pcs.)
6 Pressure gauge
Ranges 0 - 87psi
(0-6bar) bar
Refilling combination is not fitted in
flow direction
Ball valves up- or downstream of
refilling combination are not fully
open
Pressure reducing valve is not set to
the desired outlet pressure
Integrated strainer is contaminated Clean strainer
Non return valve upstream or
discharge valve are contaminated
Discharge valve is contaminated or
faulty
Valve insert, sealing ring or edge of
nozzle is contaminated or worn
Table 2.
Dimension Part No.
1/2" 0903733
1/2" 0904182
1/2" D04FMA-1/2
1/2" 0901443
S06K-1/4NPT
0904181
NK300S BOILER FEED COMBINATION
Table 1.
Cause
4
5
Remedy
Fit refilling combination in flow
direction (note direction of arrow on
housing)
Open shut off valves fully
Set outlet pressure
Remove cartridge insert and clean
or exchange it
Remove cartridge insert and clean
or exchange it
Exchange valve insert
Exchange valve insert
5
1
6
5
2
3
4
5
M36639
33-00339EFS—01