{"product_id":"tekmar-374-universal-reset-control-two-mixing-two-stage-boiler-dhw-and-setpoint","title":"Tekmar 374 Universal Reset Control, Two Mixing, Two Stage Boiler, DHW and Setpoint","description":"\u003cdiv class=\"product__additional-details js-jump-links-target js-jump-links-default-label\"\u003e\n\u003cdiv\u003e\u003cul class=\"product-downloads\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/81482-source\/374-a-06\" class=\"product-download__link\" target=\"_blank\"\u003eApplications - 374 (Mar 2009 - Present)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/42862-source\/374-d-06\" class=\"product-download__link\" target=\"_blank\"\u003eInstallation and Operation - 374 (Mar 2009 - Present)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/43126-source\/sb0054-01\" class=\"product-download__link\" target=\"_blank\"\u003eSB054 - RF Noise Interference (May 2009 - Present)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/42859-source\/374-c-01\" class=\"product-download__link\" target=\"_blank\"\u003eSpecification Sheet - 374 (Jan 2011 - Present)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product__additional-details\"\u003e\n\u003cp class=\"js-jump-links-target\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDHW pump or valve operation, DHW priority (optional)\u003c\/li\u003e\n\u003cli\u003e3 Outdoor temperature reset controlled water temperatures, control up to 2 on\/off boilers\u003c\/li\u003e\n\u003cli\u003eEqual run time rotation, 2 X variable speed pump outputs or 2 X floating action mixing outputs\u003c\/li\u003e\n\u003cli\u003eQuick setup for easy installation, user comfort adjustment to increase or decrease building space temperature\u003c\/li\u003e\n\u003cli\u003eBoiler load reset, automatic boiler differential\u003c\/li\u003e\n\u003cli\u003eOutdoor temperature reset, warm weather shut down\u003c\/li\u003e\n\u003cli\u003eCSA C US certified (approved to applicable UL standards)\u003c\/li\u003e\n\u003cli\u003eAdvanced settings to fine-tune building requirements, test sequence to ensure proper operation\u003c\/li\u003e\n\u003cli\u003ePowered boiler system and mixing system pump outputs, exercising\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ctable class=\"product__specifications\" style=\"width: 1154px; height: 286px;\" border=\"1\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eSpecifications\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approvals\u003c\/td\u003e\n\u003ctd\u003eCSA C US, meets Class B: ICES \u0026amp; FCC Part 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Conditions\u003c\/td\u003e\n\u003ctd\u003eIndoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent Non-condensing, Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Type\u003c\/td\u003e\n\u003ctd\u003eMicroprocessor control, this is not a safety (limit) control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDemand\u003c\/td\u003e\n\u003ctd\u003e20 to 260 V (ac) 2 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e6-5\/8\" H x 7-9\/16\" W x 2-13\/16\" D (170 x 193 x 72 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003eBlue PVC plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure NEMA Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHydronic - HVAC Control Type\u003c\/td\u003e\n\u003ctd\u003eUniversal Reset Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e115 V (ac) plus \/ minus 10 percent, 50\/60 Hz, 1750 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay\u003c\/td\u003e\n\u003ctd\u003e230 V (ac) 5 A, 1\/3 hp, pilot duty 240 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eNTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus \/ minus 0.2 degrees C) Beta=3892\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVariable Pump\u003c\/td\u003e\n\u003ctd\u003e230 V (ac) 2.4A 1\/6 hp, fuse T2.5 A 250 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZone Valve Load\u003c\/td\u003e\n\u003ctd\u003e89 VA, 24 V (ac), 3.7 A for zones 1 to 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Tekmar","offers":[{"title":"Default Title","offer_id":47344169681069,"sku":"T374","price":1532.18,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/5895\/3645\/files\/374-Angle-Right.jpg?v=1787918290","url":"https:\/\/www.bostonheatingsupply.com\/products\/tekmar-374-universal-reset-control-two-mixing-two-stage-boiler-dhw-and-setpoint","provider":"Boston Heating Supply","version":"1.0","type":"link"}