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Caleffi ZSR104

Caleffi Z-one™ ZSR104 ABS Multi-Zone Pump Switching Relay, 4-Zone, 12 VA

  • Mfg. Name: Caleffi Hydronic Solutions
  • Brand Name: Caleffi
  • MPN: ZSR104
  • PSCN: 463038
  • Min. Ord. Qty: 1
  • Qty. Interval: 1
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The ZSR Series is multi-zone pump and boiler operating control for multiple zone hydronic heating systems. The ZSR Series interfaces with low voltage thermostats or any other low voltage controllers having a switching action. The ZSR Series controls up to 3, 4, 5 or 6 heating circulator pumps, depending on model selected, a primary pump and has LED indicators to provide functional status and easy system troubleshooting. In addition, a primary pump system circulator is switched on whenever any zone calls for heat.

  • Compatible with 2, 3 and 4-wire thermostats or other low voltage controllers with switching action
  • Heavy-duty, sealed relays
  • One primary pump output and three to six (model dependent) zone pump outputs (120 VAC/5 A each)
  • Zone priority selectable with 1 hr time-out feature
  • Convenient R,W,C and T,T,COM dual labeling at thermostat terminals
  • System pump status (on/off) during priority selectable
  • Dry contacts (XX,AUX, ZONE 1 E/S) capable of switching line voltage
  • High capacity 12 or 20 VA transformer (model dependent)
  • Automatic resettable fuse on 24 V circuit
  • Selectable post purge
  • Selectable pump exercising
  • 3-pump ground terminals for simplified wiring
  • Expandable to unlimited number of zones using simple 3-wire connection between controls
  • Large screw terminals for ease of wiring
  • Front panel LED indicator light for functional status
  • 100% factory tested with 3 years warranty
Brand : Caleffi
Sub Brand : Z-one™
Item Name : Multi-Zone Pump Switching Relay
Voltage Rating : 120 VAC
Series/Model : ZSR Series
Nominal Size : 1/2 Inch
Length : 11 Inch
Width : 3 Inch
Height : 9-1/4 Inch
Material : ABS
Temperature Rating : 110 deg C
Frequency Rating : 50/60 Hz

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