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Main product image of 4 Zone Expandable Switching Relay w/ Priority
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4 Zone Expandable Switching Relay w/ Priority

Brand:
Caleffi
SKU:
ZSR104
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(0)
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4 Zone Expandable Switching Relay w/ Priority
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$276.81 each
In Stock
In Stock
Get 9 Wed, Jul 30
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Power Method
120 VAC Input
Product Highlight: Number of Zones
4
Product Highlight: Amperage
20 Amps
Product Highlight: Height (Inches)
9.25" Height
Product Highlight: Width (Inches)
11" Width
Product Highlight: Depth (Inches)
3" Depth

Description

Function
The ZSR series is a 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 6 zone pumps (depending on model selected) and a primary pump. It has LED indicators to provide functional status and easy system troubleshooting.

Features
  • Compatible with 2, 3 and 4-wire thermostats or other low voltage controllers with switching action
  • 120 VAC input
  • Heavy duty, sealed, fuse protected relay (with spare fuse)
  • 1 primary pump output and 3 to 6 (model dependent) zone pump outputs (120 VAC/5 A each)
  • Zone priority selectable with 1-hour time-out feature
  • Convenient R,W,C and T,T,COM dual labeling at thermostat terminals
  • DHW (ZR/ZC) dry contacts rated for switching line voltage
  • High capacity 12 VA 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 year warranty
  • ETL certified to CSA and UL standards

Specs

Application:

Zoning

Number of Zones:

4

Power Method:

120 VAC Input

Amperage:

20

Height (Inches):

9.25"

Width (Inches):

11"

Depth (Inches):

3"

Contact

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Questions?

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Call or text 888-757-4774
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Friday
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SaturdaySunday
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Product Image of 4 Zone Expandable Switching Relay w/ Priority
4 Zone Expandable Switching Relay w/ Priority
SKU: ZSR104
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