Intermatic PF1103 Freeze Protection Thermostat, 120/240V (Type 3R Metal Enclosure)
Intermatic PF1103 is a heavy-duty freeze protection thermostat control designed to help
protect pool and spa equipment and plumbing during cold weather. This thermostat-only model (no timer mechanism)
automatically turns the pump and heater on when the outdoor temperature drops below the user-adjustable thermostat setpoint.
Key Features
- Part Number: PF1103
- Brand: Intermatic
- Product Type: Freeze protection thermostat control (thermostat only)
- Voltage: 120/240 VAC, 60 Hz
- User-adjustable freeze thermostat setpoint
- Automatically turns pump and heater ON below setpoint
- Thermostat-only version (models with timer are available separately)
- Heavy-duty metallic rainproof enclosure
- Outdoor-rated Type 3R metal enclosure
- Commonly used for pool/spa, pond, fountain, and marina-type applications
- cCSAus certified (commonly listed)
Applications
Ideal for pool and spa equipment pads that need automatic freeze protection but already use a separate timer or switching
device for normal operation. Commonly used to help protect circulation equipment and plumbing from freeze-related damage.
Usage Notes
- Verify supply voltage, load requirements, and wiring configuration before ordering.
- This is a thermostat-only freeze protection control (not a timer model).
- Confirm compatibility with your existing timer/control setup and freeze-protection strategy.
- Install in accordance with manufacturer instructions and NEC/local electrical codes.
- Professional installation by a qualified electrician is recommended.
- Test thermostat activation before winter or expected freezing conditions.
Related Products
- Intermatic Freeze Protection Controls
- Intermatic PF1103T Freeze Protection Timer with Thermostat
- Intermatic PF1103MT Freeze Protection Timer Mechanism
- Intermatic Pool Timers
- Pool Equipment Freeze Protection Products
Maintenance Tips
- Inspect the enclosure regularly for moisture intrusion, corrosion, and damaged knockouts.
- Test freeze thermostat function before winter and after long off-seasons.
- Inspect wiring terminals for looseness or heat discoloration (power off first).
- Keep the enclosure closed and free of insects/debris for reliable operation.
