What causes power supply over-voltage alarm in Vertiv Liebert SRC-G Air Conditioner?
A power supply over-voltage alarm in your Vertiv Air Conditioner indicates that the power supply voltage deviates from the set value. Check if the power input line voltage is in good condition.
What to do if Vertiv Liebert SRC-G has no cooling?
If your Vertiv Air Conditioner isn't cooling, several factors could be the cause. First, check if the compressor contactor is engaging. If it is not, check for 220 Vdc of coil. If the voltage is correct, verify the contactor is properly connected. Also, a high compressor discharge pressure could be the problem, so check for a 'High pressure alarm' and follow the maintenance steps. A plugged strainer might also be the culprit; inspect it for clogs or damage, and clean or replace it as needed. Finally, a low refrigerant charge could be the issue. Use a suction and discharge pressure gauge to check if the pressure meets the requirement, and look for bubbles in the sight glass.
What triggers high humidity alarm on Vertiv Air Conditioner?
A high humidity alarm on your Vertiv Air Conditioner can be triggered if the high humidity setpoint is unreasonable, so try resetting the setpoint. Another potential cause is if a vapor barrier is not installed in the room; check for the vapor barrier.
What causes no display and unresponsive buttons but normal operation on Vertiv Liebert SRC-G Air Conditioner?
If your Vertiv Air Conditioner has no display and the control buttons do not respond, but the unit operates normally, the issue might be a disconnection between the keypad and control board. Check if the connections between the keypad and control board are firmly connected.
What to do when Vertiv Liebert SRC-G Air Conditioner shows a power loss alarm?
If your Vertiv Air Conditioner displays a power loss alarm, especially after the unit was in operation and power was lost and then restored, check if the power input line is in good condition.
Why is there a high temperature alarm on my Vertiv Liebert SRC-G?
A high temperature alarm on your Vertiv Air Conditioner may occur if the high temperature setpoint is unreasonable; try resetting the setpoint. Also, the room load exceeding the unit's design ability can trigger this alarm, so check for room sealing issues or consider capacity expansion.
What does SPD alarm mean on Vertiv Liebert SRC-G?
An SPD alarm on your Vertiv Air Conditioner indicates a potential issue with the Surge Protection Device. This could be due to SPD failure, in which case you should replace the SPD switch. It could also be due to low supply power voltage, so check for power supply voltage at the SPD, if available.
How to troubleshoot abnormal display on Vertiv Air Conditioner?
If your Vertiv Air Conditioner's display is abnormal, it could be due to static discharge. Try disconnecting the system power supply and then restarting it. Another potential cause is a loose connection between the keypad and control board. After powering off the unit, check that the connections are firmly fixed, and then restart the unit.
What causes low pressure alarm on Vertiv Liebert SRC-G?
A low pressure alarm on your Vertiv Air Conditioner can be triggered by a few things. One potential cause is refrigerant leakage; check for any leaking points, fix them immediately, and then recharge the system with an adequate amount of refrigerant. Another possible cause is low outdoor ambient temperature. Also check if the outdoor unit cabling is correct; and check whether the condensate pressure sensor works normally.
What to do if Vertiv Liebert SRC-G Air Conditioner has no display, control buttons do not respond and unit has no output?
If your Vertiv Air Conditioner shows no display, the control buttons are unresponsive, and the unit has no output, begin by checking for low power supply voltage. Also check if the connections between the control board and control board are firmly connected.
Explains the purpose and scope of the user manual for the Liebert SRC-G unit.
Defines the visual styles used in the manual for warnings, cautions, and notes.
Records the revision history and changes made to the document.
Details critical safety precautions and measures to be followed during installation and maintenance.
Introduces the Liebert SRC-G as a wall-mounted precision air conditioner for equipment rooms.
Explains the 18-digit nomenclature used to define Vertiv Liebert SRC-G series models.
Describes the key components of the indoor and outdoor units, including cabinet, coils, and fans.
Guides on how to unpack and inspect the Liebert SRC-G unit components after delivery.
Provides important considerations and recommendations for the installation of the Liebert SRC-G unit.
Outlines the steps and requirements for installing the indoor unit, including room and space considerations.
Explains the general principles and requirements for connecting the refrigeration piping for the unit.
Lists essential notes and regulations for power and control cabling, and ground connections.
Details the procedure for connecting power supply and control cables to the indoor unit.
Explains how to connect the cables to the outdoor unit's terminal block.
Lists inspection requirements for unit components before commissioning to ensure proper operation.
Describes how to perform function testing for cooling and dehumidifying modes of the unit.
Highlights the features of the microprocessor controller, including display, password protection, and communication.
Explains the control interface, including function buttons and their operations.
Details the menu structure, including alarm, setpoint, system status, and help menus.
Covers system setup, outdoor unit options, and optional functions within the controller menu.
Guides on inspecting electrical components like control boards, power boards, and connections.
Covers maintenance procedures for the indoor unit, including filter, fan, and drain pipe.
Lists monthly inspection items for system components to ensure normal function and check for wear.
Provides a guide for troubleshooting common issues like unit not starting, no cooling, and display anomalies.
Presents a visual representation of the controller's menu hierarchy and navigation flow.
General| Brand | Vertiv |
|---|---|
| Model | Liebert SRC-G Series |
| Category | Air Conditioner |
| Language | English |
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