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131Z1335 Danfoss

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Internal Product Review

The 131Z1335 is a Danfoss VLT FC 102 HVAC drive built for three-phase power and rated at 11 kW. The graphical local control panel simplifies setup, while the IP55/Type 12 backplate supports dependable integration in HVAC environments. A well-executed drive package for stable HVAC control.

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Product Description:

The 131Z1335 is a variable frequency drive manufactured by Danfoss within the VLT FC 102 HVAC Drives series. Designed for fan and pump control in building automation, the drive converts fixed mains voltage into a variable-frequency output so motor speed can be adjusted instead of relying on mechanical throttling. This electrical control method improves system efficiency and can reduce mechanical wear in ventilation, heating, and chilled-water loops. The drive supports applications in which airflow or fluid demand changes throughout the operating cycle.

The drive provides a continuous motor output capacity of 11 kW, which is equivalent to 15 HP for common HVAC duty cycles. It is intended for three-phase power supplies and uses a compact Frame A5 backplate for surface installation inside or outside a suitable panel. Its IP55 / Type 12 enclosure protects the internal electronics from dust and low-pressure water jets, making the unit suitable for many mechanical rooms and industrial utility areas. Parameters, alarms, and trend data are accessible through the Graphical Local Control Panel, which uses a backlit display for improved visibility. Variable-speed output allows the connected motor to respond to changing process demand while avoiding the energy losses associated with dampers, valves, and other mechanical control methods.

The unit has an uncoated printed circuit board, so it should be installed where airborne moisture, corrosive gases, and conductive contaminants are limited. The power section includes no harmonic filter, so any required harmonic mitigation must be provided elsewhere in the electrical system. The drive also has no brake chopper, which means it cannot dissipate dynamic braking energy through an internally controlled braking resistor. Option slots A, B, C0, C1, and D are empty, leaving space for compatible fieldbus or input and output cards when an application requires additional connectivity. The adaptation field is set to no adaptation, indicating that the unit is supplied in its standard configuration without application-specific modifications.

A Option
No A Option
Adaptation B
No adaptation
B Option
No B Option
Brake - Safe Stop
No brake chopper
C0 Option MCO
No C0 option
C1 Option
No C1 option
Coating PCB
Not coated PCB
D Option
No D option
Horse Power
15 HP
LCP
Graphical Loc. Cont. Panel
Mounting
Frame A5, B & C Backplate for open Drive back
Power Phase
Three Phase Power
Power Rating
11 KW
Product Group
VLT HVAC Drive
Protection Level
IP55 / Type12 Backplate
RFI Filter
No Filter Installed
Series Identifier
102
Software Release
Latest release std. SW.

Frequently Asked Questions about 131Z1335:

Q: What is the power rating of the Danfoss 131Z1335 VLT FC 102 drive?

A: This drive offers a power rating of 11 kW, suitable for medium-sized motors in HVAC systems.

Q: What protection level does the 131Z1335 provide?

A: The 131Z1335 model provides a protection level of IP55 / Type12 Backplate for resistance against dust and water spray.

Q: What type of local control panel comes with the 131Z1335 HVAC drive?

A: A graphical local control panel (LCP) is featured on this drive for user-friendly interface and operation.

Q: What type of power phase is supported by the 131Z1335 drive?

A: This model operates on three-phase power making it compatible with industrial installations.

Q: Does the 131Z1335 include a brake chopper for safe stop functionality?

A: There is no brake chopper enabled on the 131Z1335, so dynamic braking is not supported.

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