Universal Reset Control 374 - Two Mixing, Two Stage Boiler, DHW & Setpoint
The Universal Reset Control 374 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, low temperature staple up zones, low temperature in-slab radiant zones, domestic hot water, and 2 on/off boilers. It regulates up to three space heating water temperatures through Outdoor Temperature Reset. It is capable of controlling up to 2 on/off boilers, up to 2 mixing devices (either variable speed pumps or floating action mixing valves), and Domestic Hot Water or setpoint loads.
How do I purchase this product?
Contact your Local Representative for details.
Note: There is a product that the 374 replaces. Some conditions apply; please contact Customer Service for more information.- Features & Specs
Features (definitions)
2 X variable speed pump outputs or 2 X floating action mixing outputs
3 Outdoor Temperature 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)
Control up to 2 On/Off boilers
DHW Priority (optional)
DHW pump or valve operation
Equal Run Time Rotation
Exercising
Outdoor Temperature Reset
Powered boiler system and mixing system pump outputs
Quick setup for easy installation
Test sequence to ensure proper operation
User comfort adjustment to increase or decrease building space temperature
Warm Weather Shut Down
Specifications
Control Microprocessor control. This is not a safety (limit) control Packaged weight 3.5 lb. (1600 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, 32 to 122°F (0 to 50°C), RH ≤90% Non-condensing, Altitude <6560 ft. (2000 m), Installation Category II, Pollution Degree 2 Power supply 115 V (ac) ±10%, 50/60 Hz, 1750 VA Relays 230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA Variable Pump 230 V (ac) 2.4A 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 3 of Universal Sensor 082 Warranty Limited 3 Year Warranty - Technical
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.
Current Literature
Product Submittal
Jan 2011 - Present
Installation & Operation Manual
Mar 2009 - Present
- Applications
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Product Application Drawings
Application Brochure
Mar 2009 - Current
More advanced application drawings can be found in our Solutions section.
- Service Bulletins
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Active Service Bulletins
RF Noise Interference
May 2009 - Present
tekmar Accessory Products (15 total)
These are typical products that add more functionality to the Universal Reset Control 374
tN2 Wiring Center
313
tN2 Wiring Center
314
tN4 Wiring Center
315
tN4 Wiring Center
316
3-Way Mixing Valve
710
3-Way Mixing Valve
711
3-Way Mixing Valve
712
3-Way Mixing Valve
713
3-Way Mixing Valve
714
4-Way Mixing Valve
720
4-Way Mixing Valve
721
4-Way Mixing Valve
722
4-Way Mixing Valve
723
4-Way Mixing Valve
724
Actuating Motor
741
