NON-PROGRAMMABLE DIGITAL SLAB SENSING THERMOSTAT FOR HYDRONIC RADIANT FLOOR

Specifications

D-508F: NON-PROGRAMMABLE DIGITAL SLAB SENSING THERMOSTAT FOR HYDRONIC RADIANT FLOOR HEATING D-508F digital non-programmable hydronic radiant floor heating heat only thermostat is designed to control either ambient(air) temperature (A Mode) or floor temperature (F Mode) or a combination of ambient temperature with floor temperature limits(AF Mode). An auxiliary remote sensor is provided to measure slab temperature in order to control the floor temperature(within maximum and minimum limits in AF Mode). It can also be used for sensing the outdoor temperature in A Mode. FEATURES: Large LCD displayEasy-to-Read Digital Multi-Display with backlit which provides constant readout of two sensor temperatures(eg. ambient and floor) and setpoint simultaneously, functional status and control settings. Three temperature control modes: A Mode : controls ambient temperature F Mode : controls floor temperature. Also displays current ambient temperature. AF Mode: controls the ambient temperature and maintains the floor temperature within the desired minimum limit for floor warming and maximum limit for protecting floor coverings. Also, displays current floor temperature.QuickSet feature allows instant setpoint adjustment without entering the SETTING modeContemporary designEasy installation and setupSelectable display in °F or °COn/Off switch to shut off relay output or shutdown the thermostat at end of heating season for added securityEEPROM memory retains control settings in the event of a power failureLockout mode to prevent tempering by unauthorized personnel Sensor failure and out of range indications One stage heating applicationBacklit option: Auto (60 sec.)/OFF/ONSupplied with new P-05 10 ft. floor sensorBattery freeRoHS(Restriction of Hazardous Substances) compliant means this thermostat is Eco- friendly SPECIFICATIONS: Display Format: Liquid Crystal Display(LCD) with backlitPower Input : 24VAC ±10%, 50/60Hz, 0.5VAContact Rating: 2A 24VACSelectable display in °F or °C Setpoint Range (ambient): 34-100°F(1-38°C). Default setting: 70°F (21°C)Floor Temperature Control Range: 34-122°F(1-50°C) Default setting: 82°F (28°C)Maximum Floor Temperature Limit(AF Mode): 35-122°F(2-50°C) Default: 82°F(28°C)Minimum Floor Temperature Limit(AF Mode): 34-121°F(1-49°C) Default: 40°F(5°C)Temperature Display Range: -22 to 131°F(-30 to 55°C)Switching Differential: A/F/AF Mode: 0.5/1.0/1.5/2°F(°C), Default: 1°F/1°C Sensor Probe: P-01 10kΩ thermistors, 10" lead, 3/8"(9.5mm) OD x 13/16"(20.6mm) lengthOperating Temperature: 32 - 122°F (0 - 50°C)Dimension: 3.62"W x 2.99"H x 0.91"D(92 x 76 x 23mm)Weight: 0.32 lb. (145 g)Storage: -4 to 120°F (-20 to 50°C) Material: Flame retardant plastic

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