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Heat-Timer® 926825-00 EMESWA92682500
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Heat-Timer® PLL 926825-00 Pump Lead-Lag Control

  • Manufacturer: Heat-Timer Corporation
  • Brand Name: Heat-Timer®
  • Part#: EMESWA92682500
  • MPN: 926825-00
  • Min. Order Qty: 1
  • Qty. Interval: 1
  • loading Available at All Branches

The PLL control is a lead pump rotation control. It operates in multiple modes that satisfy many single or multiple pump applications. It is designed to run and power up to three pumps. In addition, it connects to flow switches to check for pump flow and activate the alarm outputs when needed.

Heat-Timer® Pump Lead-Lag Control, Model: PLL, 120 V, 12 VA, LED Display, 9-5/8 in H x 7-1/8 in W x 3-1/2 in D

Dimensions      :      9-5/8 in H x 7-1/8 in W x 3-1/2 in D
Display Type      :      LED
Model      :      PLL
Power Supply      :      12 VA
Voltage Rating      :      120 V
  • The PLL offers three different system pump rotation modes that include flow checking and alarming, the PLL has built-in lead pump timed rotation and alternate rotation, the timed rotation offers two options, 1 day and 7 days rotation - 2-pump 1-call/1-flow, 2-pump 2-call/1-flow (VFD pumps), 3-pump 1-call/1-flow
  • The PLL operates boiler pumps in a two-boiler system, an auxiliary pump is used to replace any failed boiler pump, the PLL will also activate a solenoid valve to direct the flow to the newly activated pump
  • The PLL changes the lead pump on flow failure, in addition, it triggers the pump's alarm and excludes that pump from rotation and activation until the alarm reset is pressed
  • The PLL can be used to lubricate seals on wet seal pumps and prevent pump seizure after long inactive periods, it does that by running any pump for a few seconds if that pump was inactive for an extended period