IMPORTANT INSTALLATION INSTRUCTIONS (Continued)
4. Using the valve compression fitting, attach the gate valve to the incoming water
supply pipe after the system. Firmly tighten compression nut. (Figure 4)
IMPORTANT NOTES
It may be necessary to slightly spread pipe ends apart in order to insert the
AP430SS head assembly with adapters into valve.
5. Tighten all compression nuts firmly, keeping the AP430SS head assembly verti-
cal. (Figure 5)
6. Screw cartridge to the right into the AP430SS filter head. Turn on main water
supply, open valves and check for leaks. (Figure 6)
IMPORTANT NOTES
Optional: By-Pass Section can be installed around unit if desired using either
threaded or sweated fi tting. (Figure 7)
To reduce the risk associated with property damage due to water leakage or
fl ooding:
• Protect from freezing, remove cartridge when temperatures are expected to
drop below 40°F (4.4°C).
• Ensure all tubing and fi ttings are secure and free of leaks.
• Do not install if water pressure exceeds 125 psi (862 kPa). If your water
pressure exceeds 80 psi (552 kPa), you must install a pressure limiting
valve. Contact a plumbing professional if you are uncertain how to check
your water pressure.
• Do not install where water hammer conditions may occur. If water ham-
mer conditions exist you must install a water hammer arrester. Contact a
plumbing professional if you are uncertain how to check for this condition.
CARTRIDGE REPLACEMENT INSTRUCTIONS
To reduce the risk of water leakage of fl ooding, and to ensure optimal fi lter
performance:
• Change disposable fi lter cartridge every 6 months or sooner if you
observe a noticable reduction in water fl ow rate.
• Failure to replace the disposable fi lter cartridge at recommended
intervals may lead to reduced fi lter performance and cracks in the fi lter
housing, causing water leakage or fl ooding.
Always have spare cartridges on hand.
1. Shut off inlet (Stop and Waste) and outlet (Compression Gate) valves. Open
drain on inlet valve, to relieve pressure in the AP430SS.
2. Unscrew the cartridge (AP431) to the left as shown in the illustration. (Figure 8)
3. Install the new cartridge, moderately hand tight. Never use tools to tighten a
cartridge.
4. Turn on inlet valve and bleed air through gate valve drain until water appears.
Then close drain, and open outlet valve.
NOTICE
NOTICE
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8