UPZCP-3, 3-Zone Pump Control, Expandable


Brand: Grundfos

Mfr Part#: 98996441

Model: UPZCP-3

UPC#: 571260490584

Availability: In Stock
Usually ships: Today, if ordered by 3pm
Qty Price
$132.95 / each & Free Shipping
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Grundfos UPZCP-3 is three-zone pump control relay for domestic hydronic heating systems. UPZCP-3 relay provides control when zoning with pumps or low voltage zone valves for three zones. Replaces Taco: SR503-4, SR503-EXP-4.


  • Compatible with 2-, 3-, and 4-wire low voltage controllers or thermostats;
  • Wiring ease with 120 VAC, ground and low voltage screw terminal inputs;
  • Low voltage end-switch output terminals for the zone valves;
  • Zone priority with selectable time-out feature;
  • Pump exercise feature, selectable 72-hours or 14-days;
  • Post purge feature;
  • Front facing LED indicator lights on the cover;
  • Side-mounted terminal connections for ease of wiring and installation.

Technical Specifications:

  • Input Power (60 Hz): 120 VAC;
  • Transformer Voltage: 24 VAC, 40 VA, Class 2;
  • Thremostat Output: 0.375 A;
  • Maxmum Single Phase Motor Rating (per zone): 5 A;
  • Maximum combined load rating (output @ 120 VAC): 20 A;
  • Temperature Range (storage): 50 - 100°F (10 - 38°C);
  • Temperature Range (maximum operation): 0 - 100°F (-18 - +38°C);
  • Maximum operating humidity range: 90% RH;
  • Number of Knockouts: 12;
  • Size of knockouts: 0.875" (22mm);
  • Dimensions (W x H x D): 8.15" x 10.67" x 2.72" (208mm x 272mm x 70mm);
  • Relay Type: Sealed;
  • Cover Panel: ABS - Fire Rated;
  • Base Material: Galvanized Steel;
  • Terminal Block (sied mounted): PA66;
  • Approvals: CSA 22.2 No 24/UL Standard 873.


2-Year Manufacturer's Warranty
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