Skip to content

Grundfos UPMXL 25-124, 230V/1Ph/60Hz, Power with PWM Modulation Signal

$ 752.10 CAD

Notify me when back in stock

Payments:  Credit Cards paypal bank transfer

Return Policy: We accept return within 30 days of receipt of your orders. Restocking fee applies on some returned Products. Returned Items shall have intact labels, packages and shall not have been used. for more info.

  • refund Full refund if you do not receive your ordered items. 
  • refund Partial Refund for partially not received or damaged items
  • Description
  • Technical Documents
  • Introduction

    UPML and UPMXL pumps for the North American market are UL and cUL approved. The type key is designed for the precise identification of the product and not for configuration purposes. It can be found on the product packaging. This Pump Model Number is UPMXL 25-124 165F PWM 180W US 230V GFD.

    1. Pump Range/Type: UPM XL
    2. Nominal Inlet and Outlet Diameter: DN25
    3. Maximum Head (Dm): 124
    4. Port to Port Length: 165 mm (4.19")
    5. Cast Iron Housing with 2-blot flanges
    6. External Control Signal: PWM (if absent Pump runs at full speed)
    7. Nominal Power Consumption: 180 Watts
    8. Power Supply: 220-240V/1Ph/60Hz

    Perfromance Curve:

    Installation Position:

    The pump must always be installed with horizontal motor shaft within ± 5 °. The pump should be installed in the system in such a way that no major amount of air flowing through the pump or gathering in the pump housing will affect the pump when it is out of operation. If, in addition, a check valve is installed in the flow pipe, there is a high risk of dry running as the air cannot pass the valve.

    • The pump is designed to be installed pumping upwards or downwards.
    • Arrows on the pump housing indicate the liquid flow direction through the pump.
    • if the pump is installed horizontally, the conduit box must point downwards. Be aware that the pump connection, flange or union nut, might interfere with the control box.

    When making pipe connections, follow the piping manufacturer's recommen

    • Insert the check valve, if required.
    • Refer to the arrows on the pump housing that indicate the direction of the liquid flow through the pump.
    • Install the pump with horizontal motor shaft.
    • Fit gaskets to the pump ends.

    PWM Signal & Wiring:

    GRUNDFOS UPML and UPMXL PWM circulators are controlled via a digital low-voltage pulse-width modulation (PWM) signal which means that the speed of rotation depends on the input signal. The speed changes as a function of the input profile.These communication signals are standardized in the VDMA Einheitsblatt 24224 “Wet runner circulating pumps - Specification of PWM control signals”.

    Digital low-voltage PWM signal

    The square-wave PWM signal is designed for a 100 to 4000 Hz frequency range. The PWM signal is used to select the speed (speed command) and as feedback signal. The PWM frequency of the feedback signal is fixed at 75 Hz in the pump.
    Duty cycle: d % = 100 x t/T

    PWM Wiring

    The UPML/UPMXL PWM pumps are externally speed-controlled by a digital low-voltage PWM signal. To enable pump control, a signal cable is required.

    • PWM A profile for Heating: Without signal the pump will always run at maximum speed.

    The signal cable has two or three leads. The signal cable must be connected to the control box by a dubox housing with an FCI terminal block and terminals.