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519 One Stage Heat Thermostat, Includes Slab Sensor (518 + 079)
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$129.50 each
In Stock
Get 60 Tue, Jun 9
Order by today, receive Tuesday
MANUALS (5)
This item replaces: 509
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Product Highlights
–
Non-Programmable
Low voltage, 24V
1 Heat
Vertical
Hardwired
White
Description
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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 079 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.
Specifications
Features
Specifications
- Control: Microprocessor control. This is not a safety (limit) control
- Packaged Weight: 0.60 lb
- Dimensions: 3-11/16" H x 3" W x 15/16" D
- Enclosure: White PVC plastic, NEMA Type 1
- Approvals: Meets Class B: ICES & FCC Part 15
- Ambient Conditions: Indoor use only, 32 to 122°F (0 to 50°C), RH ≤ 90% Non-condensing
- Power Supply: 10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby, 56 VA max fully loaded, Class 2
- Relay: 30 V (ac/dc) 2 A, Class 2 circuits
- Sensors: NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
- Included: Slab Sensor 079
- Optional: Tekmar type # 070, 072, 073, 076, 077, 079, 084
Features
- Radiant Floor Heating
- Pulse Width Modulation
- Auxiliary Sensor Input
- Outdoor & Floor Temperature Display
- Backlight
- Freeze Protection
- Includes Slab Sensor 079
- Limited 3 Year Warranty
Specs
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| Application: | Heat Only |
|---|---|
| Stages: | 1 Heat |
| Programmability: | Non-Programmable |
| User Interface: | Push Button |
| Mount: | Vertical |
| Options: | Comes with Sensor Large Display Works with Sensor |
| Enclosure Type: | NEMA-1 |
| Power Method: | Hardwired |
| Voltage: | Low voltage 24V |
| Color: | White |
| Wiring: | C R |
| Control: | Microprocessor PID control |
| Floor Sensor Compatible: | Yes |
| Package Type: | Accessories |
Questions?
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Call or text 888-757-4774
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You May Also Need
1 Replacement Part
Slab Sensor (10' wire)
SKU: 079
Tekmar
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Product Reviews
4.47 out of 38 reviews
89% would recommend this product
5 star
76%
4 star
11%
3 star
3%
2 star
5%
1 star
5%
Most Liked Positive Review
A must have for in-floor radiant heat!
The contractor installed a wall-mounted thermostat (with TINY grey display!!!) that measured air temperature.
The house was either too hot or too cold. Up & down, up & down adjustments while peering at the pathetic display.
By using an infrared scanner, I found a neutral spot in the concrete floor when the temperature reflected the average concrete temp.
So, I ripped out the wiring, threw away the "popular" thermostat & bought this one.
I chiseled out a 1.5" grout line & cemented the floor sensor in place.
With the floor temp on 75, the water temp on 120 degrees, the house is cozy in the low 70's - almost too hot, so I'm still tweaking.
With the air thermostat, the boiler would run for hours till it got to temp, now it runs 10-15 minutes & shuts off. I cant wait to see my fuel bill next month.
This unit is incredibly easy to adjust, the install took one call the mfgr tech support to verify the correct wiring.
Well worth the price - a great value for the price.
VS
Most Liked Negative Review
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Just be careful
As all Tekmar components that I've used, it works well, however, be aware that this thermostat uses PWM technology. The thermostat will cycle frequently. Depending on application, this make cause your system to 'short-cycle'.
Showing 1-10 of 38 reviews
Kicking butt with Tekma
This module was very quickly updated to our installation and it is performing flawlessly. I am impressed with Tekma for continuing to make a robust and interchangeable part.
Radianto
Seaford DE
1 years ago
Verified Buyer
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Will Short cycle boiler
Stay away from this product. It will reduce the life of your boiler . The PWM feature can not be turned off with a floor sensor and cycles boiler for 2 minutes at a time. Very disappointed with this product.
J
ON
4 years ago
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Top class T-stat
This is a fine thermostat. I'm using it to control the in floor hydronic zone valve and boiler circuit. The temperature in the room is kept within a degree of the set temperature, never below the set point and seldom above it. However, be warned...the simple SPST relay in the thermostat caused me to have to add a SPDT relay to the zone valve circuit. Perhaps I should have bought the model made for heating AND cooling which I suspect has the SPDT relay built in. Regardless, this is the best thermostat out of the five in my house by a huge margin. Today is January 16 and it was -2F outside this morning and the room was exactly on the 68* set point, by 2PM the temperature was 20*F and the room was still 68*F. At 3PM the sun was coming in through the west window and the room remained at 68*. I am impressed.
avesteve
Prescott MI
4 years ago
Verified Buyer
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Great item at a good price
Just what I needed for my radiant heated basement floor, that I wanted a thermostat with a floor sensor to better regulate the heat. Good price and not too difficult to install
Jerry
Syracuse
5 years ago
Verified Buyer
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Consistently good quality product
Hydronic radiant heat thermometer.
X
Long Island
5 years ago
Verified Buyer
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Very Satisfied
The product arrived as advertised and the pricing was competitive. Customer service was helpful before making my purchase. I will definitely buy from Supply House again.
CSF
Brooklyn, NY
5 years ago
Verified Buyer
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I have 3 in our house
I use these in rooms that I don't need a programmable thermostat. Work great, the floor sensor really helps with the radiant heat. Just wish it had a battery backup.
LeftNY
Barnstead NH
5 years ago
Verified Buyer
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Perfect replacement
Replaced the existing Uponor thermostat
Good replacement thermostat
Long Island NY
5 years ago
Verified Buyer
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A great little thermostat for radiant floor heating.
My heating contractor neglected to install a thermostat for the bathroom zone.
I was able to install this and now the bathroom floor is nice and warm this winter.
Good design and easy to install. The programing is a little tricky, would like to see a popup menu on the display.
Steve the skier
Wenatchee, WA
6 years ago
Verified Buyer
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Perfect for radiant floor heating.
Works well, simple to use. Just bought another one.
Mkb
Carson City, NV
6 years ago
Verified Buyer
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Product Q&A
9 Questions9 Questions
Q: can the sensor wire be lengthened
Asked by gene 2 years ago
Add your answer
Verified Reply- SupplyHouseHi Gene! The 10' sensor is what comes standard with the 519, but the 072 (20') or 073 (40') sensor can be purchased if you need the longer lengths.
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Q: If I set away temp to 55, how do I turn on away mode?
Asked by gerry 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffAway mode is only available when using a Tekmar zone control panel, allowing you to set the temperatures for each zone and turning the whole system to Away at the panel.
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Q: What is the highest temperature it could be set on?
Asked by Elena 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffThe floor temp range is 40 to 122°F, but please consult the installation manual for the suggested max temperatures based on the type of installation.
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Q: I have a radiant heat slab with peerless boiler, Beckett burner. The boiler has Honeywell L7224U1002 Aquastat and TACO SR 502 relay for heat zones. Will I need 4 conductors to hook up this thermostat? 24v & TT. Can the slab sensor be laid on top of the concrete directly under click laminate flooring?
Asked by Benjamin 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffFor assistance with wiring please refer to page 10 of the installation manual: http://s3.supplyhouse.com/product_files/Tekmar%20-%20519%20-%20Install%20Instructions.pdf Pages 5-6 would also detail the location of the slab sensor depending on the thickness of the laminate flooring.
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Q: I have an eight zone system using Tekmar thermostats. Are there any wifi thermostat systems so I can change settings while away from the building?
Asked by Pete 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffThere is the TekmarNet Internet Gateway, sku 485 that would enable TekmarNet thermostats to be accessed remotely. Only that product line of thermostats would be compatible with this Internet Gateway.
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Q: I have radiant floor heat and the thermostats are 2 wire low voltage. What product do I need to put a floor sensor thermostat in? I can't find a 2 wire thermostat.
Asked by Dave 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffThis thermostat is a two wire install and would be compatible with a floor sensor.
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Q: have existing floor slab in garage with radiant hydronic piping how do i install sensor
Asked by lakemm 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffPlease refer to page 5 for retrofit applications for the slab sensor install: http://s3.supplyhouse.com/product_files/Tekmar%20-%20519%20-%20Install%20Instructions.pdf
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Q: I have a geo thermal heating system. Does the 519 have a low and a high temperature setting for slab heating?
Asked by Dennis 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, as per the unit brochure the slab sensor allows for temperature control with floor minimum & maximum settings.
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Q: I have an 8 zone radiant floor system that currently uses regular old thermostats meant for forced air. I am seeing that these style thermostats such as Tekmar Radiant Floor Thermostats would work better. To replace my previous thermos, without using the floor sensors, do I need to do anything special or will the wiring that is currently provided in the wall work? Thanks
Asked by Mtn Man 11 years ago
Add your answer
Verified Reply- Supplyhouse StaffWith out knowing the thermostats you are replacing I can;t say whether or not they will be a direct replacement, if you are not using the floor sensor it will work no differently than a typical wall thermostat.
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