Jandy 7620 Manual

The Jandy 7620 is a high-performance pool and spa control system featuring digital control technology, multiple programming options, automated chemical management, temperature control, and remote access capabilities. Designed for residential pool and spa applications with support for various pump speeds, heater control, lighting systems, and water feature automation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Digital control panel, Remote control capability, Pump speed control, Heater interface, Chemical management system, Lighting control, Water feature automation.

Feature	Description
Digital Control Panel	LCD display with touch controls for system operation
Pump Speed Control	Variable speed pump programming and optimization
Heater Interface	Automatic temperature control for pool and spa
Chemical Management	Automated chemical dosing and monitoring
Lighting Control	Programmable pool and spa lighting schedules
Water Features	Control for waterfalls, fountains, and other water elements
Remote Access	Wireless control via mobile app or remote device
Safety Features	Child lock, freeze protection, and system monitoring
Energy Management	Optimized pump scheduling for energy efficiency
Multi-zone Control	Independent control of multiple pool/spa areas

Installation

Unpack and inspect contents. Ensure proper location for control panel installation.

1. Mount control panel: Choose dry, protected location away from direct water exposure.
2. Connect power supply: Use dedicated 120V AC circuit with proper grounding.
3. Connect pump systems: Wire according to pump manufacturer specifications.
4. Connect heater interface: Follow heater manufacturer wiring diagrams.
5. Connect chemical system: Install chemical sensors and dosing equipment.
6. Connect lighting: Wire pool and spa lighting circuits.

WARNING! All electrical connections must be performed by qualified electrician. Ensure proper grounding and circuit protection.

First-Time Setup

Power on system; follow initial setup wizard.

1. System initialization: Press POWER to start system setup.
2. Set date and time: Configure system clock for accurate scheduling.
3. Program pump speeds: Set variable speed profiles for different operations.
4. Configure temperature settings: Set desired pool and spa temperatures.
5. Set chemical parameters: Configure pH and chlorine setpoints.
6. Program lighting schedules: Set automatic on/off times for lights.
7. Connect remote access: Pair with mobile app or remote control.

CAUTION! Ensure all connections are secure before powering on system.

Specifications

• Power Requirements: 120V AC, 60Hz, 15A dedicated circuit
• Control Voltage: 24V AC for valve and accessory control
• Pump Control: Supports up to 4 variable speed pumps
• Heater Control: Compatible with most pool/spa heaters
• Chemical Control: pH and ORP monitoring with automated dosing
• Lighting Control: Up to 8 independent lighting circuits
• Valve Control: Supports up to 12 automatic valves
• Communication: Wireless remote access, RS-485 interface
• Operating Temp: 32°F to 122°F (0°C to 50°C)
• Enclosure Rating: NEMA 3R for outdoor installation

Controls and Settings

Access system menu via control panel buttons or remote app.

Control Panel: POWER, MENU, UP/DOWN arrows, SELECT, BACK, LIGHT, PUMP, HEATER, SPA.

System Settings: Date/Time, Language, Backlight, Sound alerts. Pump Control: Speed settings, Schedule programming, Manual override. Temperature: Pool temp setpoint, Spa temp setpoint, Heater control. Chemical: pH setpoint, ORP setpoint, Dosing parameters, Calibration. Lighting: On/Off schedules, Color programs, Dimming control. Safety: Child lock, Freeze protection, High temp limit.

Connecting Devices

Pump connections: Variable speed pump interface. Heater: Fireman's switch connection. Chemical: Sensor and dosing pump connections. Lighting: Low voltage transformer connections.

1. Turn off main power before making connections.
2. Follow wiring diagrams for proper connection sequence.
3. Use waterproof connectors for outdoor connections.
4. Test each connection before final installation.

Tip: Label all wires during installation for easy identification during maintenance.

Programming Operations

Supports automated scheduling for all pool functions.

1. Pump scheduling: Set daily run times and speed profiles.
2. Heater programming: Program temperature settings for different times.
3. Chemical management: Set monitoring intervals and dosing amounts.
4. Lighting control: Program automatic on/off times and color shows.
5. Water features: Schedule fountain and waterfall operation.
6. Seasonal programs: Create different programs for summer/winter operation.
7. Vacation mode: Set extended operation schedules.
8. Manual override: Temporary manual control of any function.

WARNING! Always test automated programs before leaving system unattended.

Maintenance Features

System monitoring: Continuous monitoring of all connected equipment. Alert system: Visual and audible alerts for system issues. Diagnostic mode: System self-test and component testing. Maintenance reminders: Scheduled maintenance alerts for filter cleaning, chemical refills.

Care & Cleaning

Turn off power before cleaning. Use soft, dry cloth for control panel. Clean chemical sensors monthly according to manufacturer instructions.

CAUTION! Do not use harsh chemicals or abrasive cleaners on control panel. Keep electrical components dry.

Regulatory Information

UL Listed for pool and spa control applications. FCC Part 15: Class B digital device compliance. CSA certified for electrical safety. Copyright © 2025 Jandy Products; all rights reserved. For technical support, visit www.jandy.com or contact 1-800-227-1442.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Control panel not responding	Power loss/display issue	Check circuit breaker; verify power supply; reset system.
Pump not starting	Wiring/power/settings	Check pump wiring; verify power to pump; check pump programming.
Heater not heating	Temperature settings/heater issue	Verify temperature setpoints; check heater power and gas supply.
Chemical alerts	Sensor/supply issues	Clean chemical sensors; check chemical supplies; recalibrate sensors.
Communication errors	Wireless interference/cable issues	Check wireless signal; verify cable connections; reset communication.

Reset: Menu > System > Factory Reset if available (use caution).

Service: 1-800-227-1442; www.jandy.com