Pentair MYERS WGL20 Installation And Service Manual

Pentair MYERS WGL20 Installation And Service Manual

Grinder pumps

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MODELS WGL20,
WGL20H and WGL20F
GRINDER PUMPS
INSTALLATION AND SERVICE MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.
Part # 23833A032 | © 2017 Pentair plc | 02/20/17

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Summary of Contents for Pentair MYERS WGL20

  • Page 1 INSTALLATION AND SERVICE MANUAL NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible party who maintains the system. Part # 23833A032 | © 2017 Pentair plc | 02/20/17...
  • Page 2 Thank you for purchasing your Myers pump. To help ® The pump normally runs hot. To avoid burns, ensure years of trouble-free operation, please read the allow it to cool for 30 minutes after shutdown following manual carefully. before handling it. SAFETY WARNINGS: Submersible grinder pumps are not approved for use in swimming pools, recreational water...
  • Page 3 The float level controls maintain the basin sewage The lower seal above the pump impeller acts as water level by controlling pump turn-on and turn- a buffer for upper seal that holds oil in the motor off level. chamber. If lower seal leaks for any reason, water enters the seal chamber.
  • Page 4 TROUBLE CHECK LIST Troubles listed below are generally not caused by the pump. Other trouble can occur from faulty control box operation. These will be listed with the control box instructions. CONDITION PROBABLE CAUSE Pump runs but does not pump liquid from basin 1.
  • Page 5 TROUBLE CHECK LIST (Cont’d) CONDITION PROBABLE CAUSE Circuit breaker trips. 1. Reset breaker by pushing clear down on handle, then back to On position. If breaker trips again in few seconds it indicates excessive load, probably caused by a short in the motor or control box.
  • Page 6 COMMON PARTS LIST Item Eng. No. Description Qty. 28184B020 CAP, CORD ASSEMBLY 28184B022 CAP, CORD WITHOUT SEAL DETECTOR ASSEMBLY 05013A039 SCREW, SET, 1/4” x 3/8” LG. 05434A025 SCREW, MACHINE 19100A012 SCREW, CAP, 5/16" x 1-1/4" LG. 21581C310 IMPELLER, PUMP, 5-1/2" O.D. 22640C014 IMPELLER, HIGH HEAD DUCTILE IRON (WGL20H) 21581C314...
  • Page 7 MOTOR WIRING DIAGRAM...
  • Page 8 Warranty is effective only if Pentair Myers authorized control panels are used. All seal fail and heat sensing devices must be hooked up, functional and monitored or this warranty will be void. Pentair Myers will cover only the lower seal and labor thereof for all dual seal pumps. under no circumstance will Pentair Myers be responsible for the cost of field labor, travel expenses, rented equipment, removal/reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility.

This manual is also suitable for:

Myers wgl20hMyers wgl20f

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