Hydro-Quip CS500-A 115V 15A Without Timer Spa Control System With Pump And Air Blower Circuits

The Hydro-Quip CS500-A is a compact, reliable spa control and heater system engineered for efficient two-appliance operation in 115V circuits. With molded/color-matched receptacles and cords, this unit delivers a clean, professional install while keeping essential spa functions ready at a moment’s notice. Designed for timerless thermostat control, it focuses on precise temperature management, robust safety, and straightforward maintenance—perfect for hot tub owners who want dependable performance without extra timer modules.

• Two integrated circuits for dedicated spa functions: a 2-speed pump circuit (with a 48" cord) and an air blower circuit (with a 48" cord) to power essential hydrotherapy features.
• Air control and sanitation ready: includes air buttons & tubing to optimize massage patterns and comfort, plus an 115V ozone circuit (with 48" cord) to support spa sanitation.
• Thermostat-based heating without a timer: full-range thermostat with a thermostat control mode designed for timerless operation, enabling precise temperature regulation without an integrated timer module.
• 1.1 kW heater for reliable hot water: corrosion-resistant heater housing paired with a pressure switch and hi-limit protection for safe, consistent heating.
• Safety and reliability built in: 115V light circuit, heater ON indicator, heater disconnect unions, and GFCI protection for peace of mind in wet environments.
• Easy integration and clear documentation: includes a detailed operation manual and is UL and ETL recognized for industry-standard safety and performance.

Why choose the CS500-A for your spa or hot tub setup

Unlike systems that mix multiple timer-dependent components, the CS500-A focuses on a timerless thermostat control mode with robust protection features. The result is a straightforward, dependable control platform that reduces wiring complexity while delivering dependable heat, efficient water flow, and flexible hydrotherapy options.

Ideal use cases

• Retrofits and new spa installations where a compact, all-in-one control and heater unit is preferred.
• Spas requiring simultaneous operation of a two-speed pump and air blower, with controlled heating and ozone sanitation.
• Applications where integrated safety features (hi-limit, pressure switch, GFCI) are prioritized for water-based environments.

What you’ll get and how it helps you maintain great spa performance

• Consistent temperature management: the full-range thermostat and timerless control let you hold your water at the exact setpoint.
• Reliable heater performance: 1.1 kW heater provides steady warm water, while the corrosion-resistant housing stands up to daily spa use.
• Comprehensive protection: pressure switch control, hi-limit protection, and GFCI ensure safe operation even in humid environments.
• Clear wiring and accessibility: molded/colored receptacles and cords streamline installation and future servicing.

Specs at a glance

• Model: CS500-A
• Supply Voltage: 115 V
• Heater Wattage: 1.1 kW
• Current: 15 A
• Appliances Supported: 2
• GFCI: Yes
• Light Circuit: 115 V
• Timer: No (thermostat control mode)
• Certifications: UL and ETL recognized
• Additional features: 48" cords for pump, blower, and ozone circuits; reversible water flow; heater ON light; heater disconnect unions

With the Hydro-Quip CS500-A, you get a cohesive, compact solution that consolidates key spa functions into a single, dependable unit. It’s built for performance, safety, and easy maintenance—empowering you to enjoy consistent warmth, soothing hydrotherapy, and clean, balanced water with less setup fuss.