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Radiant Thermostat 5110519
Installation & Operation Manual
Introduction
The Radiant Thermostat 519 accurately
controls the room and/or floor temperature
for a hydronic heating zone using Pulse
Width Modulation (PWM) technology.
Simple up and down buttons and a display
with large type make this thermostat easy
to read and use. A Slab Sensor 5110079
is included to measure floor temperature
to protect the floor from overheating and
enhance comfort. This easy to install
thermostat is a direct replacement for
the tekmar Thermostat 509.
mrpexsystems.com
Energy Saving Features
• Auto Heating Cycle
Additional Features
• Radiant Floor Heating
• Pulse Width Modulation
• Floor & Air Temperature Control
• Outdoor & Floor Temperature
Display
• Backlight
• Freeze Protection
• Includes Slab Sensor 5110079
1 of 16
Zoning
©2017 MrPEX® Systems 519_D - 04/17
519 _ D
04/17
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Table of Contents
Summary of Contents for MrPEX Systems 5110519
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Page 1: Energy Saving Features
519 _ D Radiant Thermostat 5110519 04/17 Zoning Installation & Operation Manual Introduction The Radiant Thermostat 519 accurately Energy Saving Features controls the room and/or floor temperature • Auto Heating Cycle for a hydronic heating zone using Pulse Width Modulation (PWM) technology. -
Page 2: Table Of Contents
Table of Contents Getting Started ........2 Sequence of Operation ......12 Heating Operation ......12 Installation ............2 Preparation ..........2 Programmable Settings ......13 Removing The Thermostat Base ..3 Troubleshooting ........14 Mounting The Thermostat ....4 Error Messages ........14 Slab Sensor 5110079 Installation ...5 Frequently Asked Questions .. -
Page 3: Removing The Thermostat Base
- -- -- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Materials Required • 18 AWG LVT Solid Wire (Low Voltage Connections) -
Page 4: Mounting The Thermostat
Mounting The Thermostat Stud Adapter Plate 5110012 Thermostat Base Thermostat ” Front (83 mm) Gang If a single gang box is used: • Adapter Plate 5110012 is required (sold separately). • Feed the wiring through the hole in the adaptor plate and the thermostat base. -
Page 5: Slab Sensor 5110079 Installation
Slab Sensor 5110079 Installation - -- -- -- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - New Installations Thin-Set or Thin-Pour Applications If the floor covering is to be installed over either a thin-set or thin-pour material of... -
Page 6: Slab Sensor 5110079 Wiring
- - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - -- - - - -- - - - - -- - - - - -- - - - - -- - - - - -- - - - -- - - - - Retrofit Installations Tile Floor Coverings If a Slab Sensor 5110079 is to be installed into an existing tile floor with sufficiently... -
Page 7: Slab Sensor 5110079 Testing
Slab Sensor 5110079 Testing A good quality test meter capable of measuring up to 5,000 kΩ (1 kΩ = 1000Ω) is required to measure the sensor resistance. In addition to this, the actual temperature must be measured with either a good quality digital thermometer, or if a thermometer is not available, a second sensor can be placed alongside the one to be tested and the readings compared. - Page 8 Temperature vs. Resistance Table - Continued Temperature Resistance Temperature Resistance °F °C °F °C 5,828 1,538 5,210 1,403 4,665 1,281 4,184 1,172 3,760 1,073 3,383 3,050 2,754 2,490 2,255 2,045 1,857 1,689 ©2017 MrPEX® Systems 519_D - 04/17 mrpexsystems.com 8 of 16...
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Page 9: Thermostat Wiring
Thermostat Wiring ----- ---- - -- -- -- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Zone Valve Install field Zone... -
Page 10: Testing The Thermostat Wiring
DC power supplies the voltage should measure between 10 to 30 V (dc). 3. If the voltage on the R and C wire terminations is continuous and the thermostat display is not on, the thermostat may have a fault. Contact your MrPEX Systems sales representative for assistance. -
Page 11: User Interface
User Interface Home Screen Symbols Description HEAT ON Heat is turned on. The floor is at or below the floor minimum temperature. MODE OFF The heating system is off. The floor has reached the WARNING SyMBOL floor maximum temperature. Indicates an error is present. -
Page 12: Sequence Of Operation
Sequence of Operation Heating Operation To change the heat temperature setting, push the button to select a preferred temperature setting. The Heat On symbol is shown on the display when the thermostat is heating. The heat can cycle on and off within +/- 1.5°F (1°C) of the temperature setting. The floor and air heating can be shut off by holding the button until Set Room is Off. -
Page 13: Programmable Settings
Programmable Settings Setting Display User settings. Press the buttons together for 3 seconds to enter and advance to the next setting. MODE Select heat or off. Range: HEAT, OFF Default: HEAT UNITS Select the temperature units. Range: °F or °C Default: °F LIGHT Select when the display back light should operate. -
Page 14: Troubleshooting
Troubleshooting Error Messages Error Message Description SETUP MENU SAVE ERROR The thermostat failed to read the Programmable Settings from memory and has reloaded the factory default settings. The thermostat stops normal operation until all Programmable Settings are checked except to provide freeze protection. ROOM SENSOR OPEN CIRCUIT ERROR The built-in air temperature sensor has an open circuit fault. -
Page 15: Frequently Asked Questions
Thermostat must be in Mode Heat in Mode Off not heat. order to provide heating. Technical Data Radiant Thermostat 5110519 One Stage Heat Literature 5110519_C, 5110519_D, 5110519_Q, 5110519_U Control Microprocessor control. This is not a safety (limit) control Packaged weight 0.6 lb. -
Page 16: Limited Warranty And Product Return Procedure
LIMITED WARRANTy—EFFECTIVE MAy 1, 2016 VALID FOR MRPEx® POTABLE PEx-A TUBING, FITTINGS AND OTHER SELECT PLUMBING PRODUCTS Limited Warranty tMrPEX Systems warrants to its “clients” that the MrPEX POTABLE PEX-a Tubing and Plumbing Components, used for Plumbing ® ® applications, sold hereunder shall be free from defects in material and workmanship and that the components will conform to specifications stated in MrPEX Publications.
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