Control panel documentation

Nitrogen Reduction Control Panel

CP-001-1-0001 · Rev v6.1

Timer-based process control for Hydro-Action® wastewater treatment systems · 120 VAC · 60 Hz · single phase. UL 508A Listed, file E547664. Engineered and manufactured by Legacy Controls for AKHA Manufacturing, LLC.

Read first — isolated control circuit & lockouts

This panel ships with the control circuit COMBINED with main power via a factory jumper between terminals 1 and 2. Where a separate (isolated) control-circuit feed is installed instead, THAT FEED STAYS ENERGIZED when the main feed is off — disconnect ALL power sources and verify with a voltage tester before opening the panel. Neutrals from both feeds must land on the same neutral bus in the feeder panel. Never bypass or disable any lockout or alarm — doing so may allow untreated wastewater discharge.

Documents

Quick Start Guide The field sequence in four pages — mounting, 120 VAC supply and 30 A minimum ampacity, isolated control-circuit jumper, landing M1/M2/M3 and both floats, start-up and lockout test · PDF Operation Manual Installation, wiring, operation, timer setting calculations, maintenance, troubleshooting, warranty · line drawing v6.1 and connection diagram included · PDF Specification Sheet Ratings, control functions & failsafe protection, two-float detection, recommended timer settings, compliance notes · PDF Troubleshooting Guide Device-classified symptom matrix — power & feeds, isolated control circuit, compressor & air pressure, floats, timers, contactors, PRI-32 current monitoring, lockouts, alarm · PDF

At a glance

Model: CP-001-1-0001 · panel revision v6.1 — engineered & manufactured by Legacy Controls for AKHA Manufacturing, LLC (Hydro-Action® systems)
Electrical: 120 VAC, 60 Hz, single phase · total FLA 26 A · largest motor FLA 7.0 A · SCCR 5 kA
Supply circuit: Minimum supply circuit ampacity 30 A · field-supplied main disconnect switch required upstream
Control: Timer-based recirculation — Elko CRM-2H asymmetric flasher (T1) + Elko CRM-183J/UNI off-delay (T2) · Elko EP PRI-32 current-sensing relay supervises the recirculation pump · air pressure switch
Functions: ATU aeration control · timed recirculation (M1, float-protected) · intermittent mixing (M2, float-protected) · demand dose (M3 — the only lockout-protected output)
Floats: Two-float level detection — recirculation enable (lowest) · high water (highest) — high water is ALARM ONLY by design and never interrupts operation
Protection: Only two conditions lock out the demand dose pump: low air pressure or a recirculation failure (PRI-32 / T2 timeout) · overload protection is integral to the motors — no overload devices in this panel · alarm circuit limited to 5 A
Enclosure: Type 1 — mount to a stable vertical surface in a weatherproof or well-ventilated location
Compliance: UL 508A Listed · file E547664 · designed for NSF/ANSI 40 & 245 compatible systems

Support & warranty

All technical support, warranty claims, service questions and callbacks for this panel are administered by AKHA Manufacturing, LLC — toll free 800-370-3749 · (574) 936-2542 · hydro-action.com · 2055 Pidco Dr. / P.O. Box 640, Plymouth, Indiana 46563.

Legacy Controls provides manufacturing and warranty support to AKHA Manufacturing, LLC and does not accept direct enquiries or claims from end users or installers for this product line. Two (2) year limited warranty to the original purchaser.