Iv. replacement parts list, Ro system troubleshooting – Watts PWR8024 User Manual
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10
RO System Troubleshooting
PRoblem
coRRective action
General
high Product Water tDs
Membrane expanded.
Replace membrane.
Membrane attack by chlorine
Carbon pre-filter may be exhausted. Replace with a new cartridge.
Clogged pre-filter-creates pressure drop and low reject flow.
Replace pre-filter cartridge.
Feed pressure too low.
Feed pressure must be at least 20psi.
Insufficiently flushed post-filter cartridge.
Flush post-filter with pure water.
Brine seal on membrane leaks.
Determine if seal or o-ring is bad. Replace as needed.
no Product Water or not enough Product Water
Feed water shut off.
Turn on feed water.
Low feed pressure. Feed pressure must be at least 20psi.
Consider booster pump.
Pre-filter cartridge clogged.
Replace pre-filter cartridge.
Membrane fouled.
Determine and correct cause; replace membrane.
Product check valve stuck.
Replace check valve fitting.
Low pump discharge pressure
Open pump discharge valve, replace pump
item numbeR
DescRiPtion
QuantitY PeR sYstem
PWR80243085
PWR80243125
PWR80243165
PWR80243205
1
Pre filter housing 7 round 40"
1
1
1
1
2
Pressure Gauge, 2 1/2", 0-100 psi, LF, Back Mount
2
2
2
2
3
Pressure Gauge, 2 1/2", 0-400 psi, LF, Back Mount
3
3
3
3
4
Flow Meter 2 - 20 gpm
1
1
5
Flow Meter 4 – 40 gpm
1
1
6
Flow Meter 6 - 60 gpm
2
1
7
Flow Meter 10 - 80 gpm
1
1
1
8
Flow Meter 15-130 gpm
1
1
9
Controller with conductivity meter (optional)
1
1
1
1
10
Pump & Motor, 3-Phase, 60Hz, 15 hp
1
11
Pump & Motor, 3-Phase, 60Hz, 20 hp
1
12
Pump & Motor, 3-Phase, 60Hz, 25 hp
1
13
Pump & Motor, 3-Phase, 60Hz, 30 hp
1
14
Low Pressure Switch
1
1
1
1
15
Inlet Solenoid Valve 24 volt, 2”
1
16
Inlet Solenoid Valve 24 volt, 3”
1
1
1
17
RO Membranes
8
12
16
20
18
Pre Filter Cartridges 40” 5 micron
7
7
7
7
IV. Replacement Parts List