The Universal Reset Control 363 is designed to operate all of the mechanical equipment in a residential hydronic heating system. It can be used in applications ranging from a single zone of baseboard with an on/off boiler to multiple fan coils, and low temperature radiant floor zones. It regulates up to two space heating water temperatures through Outdoor Temperature Reset. It is capable of controlling a single on/off boiler, a mixing device (variable speed pump or mixing valve), and domestic hot water or setpoint loads.
Note: There are multiple products which the 363 can replace depending on the application. Some conditions apply; please contact Customer Service for more information.2 outdoor reset controlled water temperatures
Advanced settings to fine-tune building requirements
Automatic Boiler Differential
Boiler Load Reset
CSA C US certified (approved to applicable UL standards)
DHW priority (optional)
DHW pump or valve operation
Exercising
Indoor Temperature Feedback (with optional indoor sensor)
Outdoor Temperature Reset
Powered boiler system and mixing system pump outputs
Quick setup for easy installation
Setback input for energy savings
Test sequence to ensure proper component operation
User comfort adjustment to increase or decrease building space temperature
Variable speed pump control or floating action mixing control
Warm Weather Shut Down
| Control | Microprocessor control. This is not a safety (limit) control |
| Packaged weight | 3.9 lb. (1760 g) |
| Dimensions | 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm) |
| Enclosure | Blue PVC plastic, NEMA type 1 |
| Approvals | CSA C US, meets Class B: ICES & FCC Part 15 |
| Ambient conditions | Indoor use only, 36 to 104°F (2 to 40°C), RH ≤80% to 88°F (31°C), down to 50% above 104°F (40°C), Altitude <6560 ft. (2000 m), Installation Category II, Pollution Degree |
| Power supply | 115 V (ac) ±10%, 60 Hz, 1800 VA |
| Relays | 230 V (ac) 7.5 A, 1/3 hp, pilot duty 240 VA |
| Var. Pump | 230 V (ac) 2.4 A, 1/6 hp, fuse T2.5 A 250 V |
| Demands | 20 to 260 V (ac) 2 VA |
| Sensors | NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892 |
| -Included | Outdoor Sensor 070 and 2 of Universal Sensor 071 |
| -Optional | tekmar type #: 033, 040, 063, 070, 071, 072, 073, 076, 077, 082, 084 |
| Warranty | Limited 3 Year Warranty |
In most cases the current version of literature will work, otherwise use the piece of literature most closely matching the date code of your product.
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Product Submittal |
Jan 2011 - Present |
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Installation & Operation Manual |
Dec 2008 - Present |
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User Manual |
Jun 1999 - Present |
Application Brochure |
Jun 1999 - Current |
More advanced application drawings can be found in our Solutions section.
RF Noise Interference |
May 2009 - Present |

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Indoor Sensor
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Indoor Sensor
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Universal Sensor
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Slab Sensor
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Indoor Sensor
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3-Way Mixing Valve
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