Vertiv Liebert MCM160 Installer/User Guide

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Liebert®

MC

Installer/User Guide

60 Hz, Air Cooled Microchannel Condenser, Premium/ECFan

Table of Contents

Other manuals for Vertiv Liebert MCM160

User Guide127 pages

Questions and Answers:

R
Ryan CarpenterAug 5, 2025
How to troubleshoot Vertiv Heat Pump condenser that will not start?
- M
  Michael OsborneAug 5, 2025
  If the Vertiv Heat Pump condenser won't start, first check the voltage at the input terminal block to ensure there is power. If power is present, check if the circuit breaker or fuse for the low voltage transformer in the condenser has tripped; if so, locate and repair the problem within the condenser's electrical panel. Finally, verify that there is a low voltage signal to or from the indoor unit; if not, locate and repair any open circuits.
B
brewerjennaAug 9, 2025
What to do if SPD green and red LEDs are extinguished on Vertiv Heat Pump?
- J
  Julia LopezAug 9, 2025
  If the green and red LEDs on your Vertiv Heat Pump's SPD are extinguished, begin by checking the voltage at the input terminal block to ensure proper voltage and phasing at the condenser. Next, inspect the electrical connections to the SPD for any faults and repair them. Finally, ensure that the condenser disconnect switch is in the On position and recheck the lights.
D
Dana MaciasAug 13, 2025
Why is there high discharge pressure in my Vertiv Liebert MCM160?
- A
  Austin JonesAug 13, 2025
  High discharge pressure in your Vertiv Heat Pump can be caused by several factors. Begin by cleaning the condenser coil fins. Also, check if the condenser fans are operating and verify the low voltage signal from the indoor unit and check the fan motors and fuses. Finally, check the refrigerant charge, as a high charge can also cause this issue.
D
Daniel GloverAug 17, 2025
What to do if Vertiv Liebert MCM160 Control Board LEDs do not light?
- K
  Kevin ReedAug 17, 2025
  If the control board LEDs on your Vertiv Heat Pump do not light up, check the connection to P24 to ensure it is securely connected. Also, check the connector from the transformer for loose terminals. Verify that the fuses next to P24 have not blown, and replace them if needed. Use a voltmeter to confirm that the output from the transformer is 24Vac ±10%, ensuring the correct primary leads are used. If there is no output voltage, verify that the primary connections are secure and receiving the correct voltage. If they are, replace the transformer.
M
Marissa EvansAug 22, 2025
What does it mean if SPD red LED is illuminated on Vertiv Heat Pump?
- D
  david94Aug 22, 2025
  If the red LED is illuminated on the SPD of your Vertiv Heat Pump, it indicates that a surge exceeding the SPD's rating has occurred. Replace the SPD and inspect other components for damage, replacing them as necessary.
J
Jennifer EwingAug 26, 2025
Why Vertiv Liebert MCM160 fan will not run?
- C
  charles30Aug 27, 2025
  If the fan on your Vertiv Heat Pump will not run, ensure that a jumper is installed between 24V and DIN1, specifically for Ziehl-Abegg fan motors. Install the jumper if it is missing.
S
Sean HuntAug 30, 2025
What causes low discharge pressure in Vertiv Liebert MCM160?
- M
  Michael ShieldsAug 30, 2025
  Low discharge pressure in a Vertiv Heat Pump can be due to a faulty head pressure control valve or premium efficiency control board. If either is defective, replace it.

Vertiv Liebert MCM160 Specifications

General

Brand	Vertiv
Model	Liebert MCM160
Category	Heat Pump
Language	English

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