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Resideo
Resideo Pressuretrol® PA404A1033/U Pressure Controller, 0.5 to 9 psi Control, SPST Snap Acting Electronic Switch, 1 to 5 psi Differential
Resideo

Resideo Pressuretrol® PA404A1033/U Pressure Controller, 0.5 to 9 psi Control, SPST Snap Acting Electronic Switch, 1 to 5 psi Differential

BrandResideo
MFR Part NoPA404A1033/U
TSCO Part Number424530

Features

  • Immersion type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems
  • Provide multizone control by using a separate circulator and R845 Relay for each zone
  • Include diaphragm powerhead and Micro Switch™ assembly that respond to temperature changes in boiler water
  • Mount directly to boiler
  • Select models include large transformers and extra terminals for supplying power to low voltage zone valves
  • Require 24 VAC thermostat with heat anticipator set at 0.2 A (plus current draw of gas valves on L8124E)
  • TRADELINE® models include tube of heat conductive compound and range stops
  • 0 to 95 Percent RH non-condensing

Standard Approvals

  • CSA File No LR1620
  • Guide No MBPR
  • UL File No MP466