Universal Reset Module - Four tN4, Two Boiler, DHW & Setpoint

Control Description The Universal Reset Module 423 provides outdoor reset to a hydronic heating system in order to maximize comfort and efficiency. The 423 can operate two on / off boilers or two modulating boilers. The 423 can override the outdoor reset water temperature to provide Domestic Hot Water or Setpoint operations. The 423 can operate four outdoor reset water temperatures, up to three of these water temperatures can be mixing water temperatures. To operate a mixing device, a Mixing Expansion Module must be connected to the 423 for each mixing water temperature.

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 92% to 104¼F (40¼C), down to 50% above 104¼F (40¼C)
	Altitude <3000 m (9840 ft), 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
Combined Load	10 A Maximum (for DHW and Primary Pump)
DHW Valve 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 Universal Sensor 071