Heating Tekmar Tekmarnet 4 Modules | Zone Expansion Module – Six Zone Valves

Control Description: The Zone Expansion Manager 325 Is Designed To Simplify The Wiring Between Tn4 Thermostats And Zone Valves. The 325 Has An Internal Transformer That Supplies Power To The Tekmarnet+4 (Tn4) Thermostats And Connected Zone Valves. Control + Microprocessor Pid Control; This Is Not A Safety (Limit) Control Packaged Weight + 2.95 Lb. (1338 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 122+F (0 To 50+C); Rh Equal To Or Less Than 80% To 88+F (31+C), Down To 50% From 104 To 122+F (40 To 50+C); Altitude <2000 M, Installation Category Ii, Pollution Category 2 Power Supply + Provided By Interconnected Zone Manager Transformer + 24 V (Ac) 8 Va Maximum Zone Group Pump C Relay + 0-10 V Minimum 2500 Ω Combined Relay Load + 115 V (Ac) 5 A 1/4 Hp, Pilot Duty 240 Va