Installation
- Turn off the water supply before starting.
- For single systems (H9320‑51), connect inlet and outlet using 3/8" FNPT fittings.
- For double (H9320‑52) and triple (H9320‑53) systems, connect using 3/4" MNPT and FNPT fittings.
- Insert the 4HC‑H replacement cartridge into the manifold and twist clockwise until secure.
- Turn the water supply back on and flush at least 5 gallons to remove carbon fines and air bubbles.
- Check all connections for leaks before regular use.
- For detailed steps, refer to the installation manual provided in the package or contact a licensed plumber.
Maintenance
- Replace the 4HC‑H cartridge every 12 months or when rated gallon capacity is reached (21,000 gal single, 42,000 gal double, 63,000 gal triple).
- Inspect fittings and tubing regularly for leaks.
- Use Everpure E‑10 or E‑20 prefilters in areas with high sediment to extend cartridge life.
- Clean exterior surfaces with a soft cloth and mild cleaner.
- Only use genuine Hoshizaki replacement cartridges for certified performance.
- For service or repairs, consult the manual or a Hoshizaki Certified Service Representative.