'/%3E%3C/svg%3E)
Hover image to zoom
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='Half' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cg%3E %3Cpath fill='%23F15C02' d='M30.05,70.23l3.79-12.01L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1h1.58 L93.71,7.18c-3.58-3.82-8.66-6.23-14.28-6.23H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,5.41,2.22,10.32,5.79,13.88 L30.05,70.23z'/%3E %3C/g%3E %3Cpath fill='%23FBC8B4' d='M93.71,7.18L60.98,39.6H91.2L65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82l5.55-17.59L6.75,93.32 c3.55,3.54,8.44,5.73,13.82,5.73h58.87c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,15.4,97.01,10.69,93.71,7.18z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$373.50 each
In Stock
Get 34 Tomorrow, Jul 2
Order by 6PM, receive Tomorrow
MANUALS (8)
This item replaces: 529, 544
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
Programmable, 7 Day
24V
2 Heat/1 Cool, 1 Fan
Vertical
Hardwired
32°F to 122°F
Description
–
Note: This thermostat is designed to be used with a tekmarNet® House Control, Wiring Center or Zone Manager for power and communication.
It can also be used in stand alone applications.
The tekmarNet® Thermostat 553 is a communicating touchscreen thermostat designed to operate two heating stages, one cooling stage, a fan and relative humidity. The heating stages can be hydronic, forced air or a single stage heat pump. The cooling stage is either an air conditioner or heat pump. There are two auxiliary sensor inputs available to measure room, floor, outdoor, coil or duct temperature. The optional floor sensor allows precise heating of radiant floors by controlling the floor temperature and maintaining the desired room air temperature. Relative humidity level can be measured and controlled using the built-in humidity sensor. The large touchscreen allows you to easily adjust 7-day programmable schedules and room temperature to optimize comfort and energy savings. The 553 can connect to tekmarNet® controls using two or four wires or it can operate as a stand-alone device.
Energy Saving Features
Additional Features
The tekmarNet® Thermostat 553 is a communicating touchscreen thermostat designed to operate two heating stages, one cooling stage, a fan and relative humidity. The heating stages can be hydronic, forced air or a single stage heat pump. The cooling stage is either an air conditioner or heat pump. There are two auxiliary sensor inputs available to measure room, floor, outdoor, coil or duct temperature. The optional floor sensor allows precise heating of radiant floors by controlling the floor temperature and maintaining the desired room air temperature. Relative humidity level can be measured and controlled using the built-in humidity sensor. The large touchscreen allows you to easily adjust 7-day programmable schedules and room temperature to optimize comfort and energy savings. The 553 can connect to tekmarNet® controls using two or four wires or it can operate as a stand-alone device.
Energy Saving Features
- Programmable Schedule
- Zone Synchronization
- Zone Post Purge
- Warm Weather Shut Down
- Cooling Interlock
- Auto Heating Cycle
- Temporary Hold
- Away Scene Key
Additional Features
- 2 Auxiliary Sensor Inputs
- tekmarNet® Communication Compatible
- Touchscreen Technology
- Outdoor & Floor Temperature Display
- Backlight
- Radiant Floor Heating & Cooling
- Freeze Protection
- Pump & Valve Exercising
- Heat / Cool Priority
- Air Group Master or Member
- Network Schedule Master or Member
- Optimum Start
- Scenes
- Daylight Savings Time
- Room Temperature Limiting
- Relative Humidity Control
Specs
–
| Application: | Multi-Stage (Heat/Cool) Heat Pump |
|---|---|
| Stages: | 2 Heat/1 Cool 1 Fan |
| Programmability: | Programmable 7 Day |
| User Interface: | Touchscreen |
| Mount: | Vertical |
| Options: | Fan Control Works with Sensor Auto Changeover Large Display |
| Power Supply: | 24V (ac) |
| Power Method: | Hardwired |
| Voltage: | 24V |
| Temperature Range (F): | 32°F to 122°F |
| Color: | White |
| Height: | 5" |
| Width: | 3-1/4" |
| Depth: | 15/16" |
| Ambient Conditions: | Indoor Only: 32°-122°F <90% RH Non-Condensing |
| Control: | Microprocessor PID control |
| Sensors: | NTC Thermistor, 10 k ohm @ 77°F |
| Floor Sensor Compatible: | Yes |
| Relays: | 24 V (ac) 2 A |
| Amperage: | 2 |
| Humidity Control: | Yes |
| Wireless: | No |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Compare Similar Products
Brand
Application
Stages
Programmability
User Interface
Mount
CURRENT ITEM
Multi-Stage (Heat/Cool)
Heat Pump
Heat Pump
2 Heat/1 Cool
1 Fan
1 Fan
Programmable
7 Day
7 Day
Touchscreen
Vertical
You May Also Need
Product Reviews
4.67 out of 3 reviews
100% would recommend this product
5 star
67%
4 star
33%
3 star
0%
2 star
0%
1 star
0%
Showing 1-3 of 3 reviews
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Minor quibbles
I have two zones that have both radiant and baseboard hydronic heat. The 553 is the only t'stat I could find that gave good control of the baseboard and radiant valves. My gripes are: 1.) Loss of power for 4 hours causes loss of date/time setting. 4 hours? Really! 2.) The scheduling settings can be challenging to the user since the screen doesn't indicate which of the two "away" settings you are on. 3.) Price seems very high, but for the two valve functioning mentioned above, it seems to be the only choice.
art
Cambridge, MD
5 years ago
Was this review helpful to you?
Tekmar 553 in retrofit install
I'm using the Tekmar 553 and 552(s) in a retrofit installation. Zone Pump controllers are Taco 504's. I have implemented slab sensors and still use the built-in air temp sensor. I ran new T-stat wire and made my own "wiring center" to implement TekmarNet communications, which seems to be working great!
I have 4 zones in the main living space. Having one "master" T-stat sending Date, Time and Event programming to the "slave" thermostats is a big plus. Coordination between heat/cool cycles is another plus.
I'm just a homeowner and programming the T-stats is a bit of a challenge.
Donnie
Wellsboro, PA
11 years ago
Was this review helpful to you?
The Tekmar 553 Thermostat Rocks!
I replaced my Tekmar 543 two stage thermostat with the 553 and now I have complete control over first stage radiant floor heat and my second stage hydrocoil heating system. The 543 didn't provide any user control over second stage heating but the 553 lets you set first stage run time and set point differential to determine when the second stage kicks in.
I do wish they offered this thermostat with only two heating stages and no cooling control. Most high efficiency air conditioners are two stage and have their own proprietary communicating thermostats to take advantage of all of their features.
Lognut04
Landenberg, PA
12 years ago
Verified Buyer
Was this review helpful to you?
Product Q&A
2 Questions2 Questions
Q: Does it come with a floor sensor?
Asked by Thomas 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffNo, this thermostat does not come with the floor sensor. It is compatible with the 072 or 073 slab sensors, but those would have to be purchased separately.
Was this review helpful to you?
Q: How to turn temperature up
Asked by Dick 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffTo change the heating or cooling set temperature, touch the up or down arrows to select a preferred temperature setting. Press the home button to accept the setting or leave the screen untouched for several seconds
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy