Universal Reset Module – Two tN4, Mixing, Boiler, DHW & Setpoint

Description

Control Description The Universal Reset Module 422 provides outdoor reset to a hydronic heating system in order to maximize comfort and efficiency. The 422 can operate a single on / off boiler or a single modulating boiler. The 422 can override the outdoor reset water temperature to provide Domestic Hot Water or Setpoint operations. The 422 can operate two outdoor reset water temperatures, either one boiler water temperature and a single mix water temperature, or two mix water temperatures. To operate two mixing devices, a Mixing Expansion Module must be connected to the 422. The single mix output can operate a floating action mixing valve or a variable speed injection pump. Control Microprocessor PID control; This is not a safety (limit) control Packaged Weight 1.9 lb. (1638 g) Dimensions 3-5/8″ H x 5-3/8″ W x 9/16″ D (92 x 137 x 14 mm) Approvals CSA C US, CSA/UL 61010-1, meets Class B: ICES and FCC Part 15 Ambient Conditions Indoor use only, 32 to 122¼F (0 to 50¼C). RH equal to or less than 80% to 88¼F (31¼C), down to 50% from 104 to 122¼F (40 to 50¼C) Altitude <2000 m, Installation Category II, Pollution Category 2 Power Supply Provided by interconnected Zone Manager DHW Pump Relay 115 V (ac) 5 A 1/4 hp, pilot duty 240 VA Primary Pump Relay 115 V (ac) 5 A 1/4 hp, pilot duty 240 VA Mixing P1 Pump Relay 115 V (ac) 5 A 1/4 hp, pilot duty 240 VA Variable Speed Pump 115 V (ac) 2.5 A 1/6 HP, fuse T2.5 A 250 V Combined Load 10 A Maximum (for DHW, Primary, Mixing and Variable Speed Pump) Floating Action Output 24 V (ac) 8 VA Maximum Modulation Output 0-10 V Minimum 2500 Ω Boiler Relay 115 V (ac) 5 A 1/4 hp, pilot duty 240 VA Demands 20-260 V (ac) / 0.1 VA @ 24 V Sensors NTC thermistor, 10 kΩ @ 77¼F (25¼C ¼0.2¼C) +=3892    Included Outdoor Sensor 070 and 2 of Universal Sensor 082