AC Drive for HVAC Applications

Features

• Built-in EMC filter and timer
• Real-time clock and calender
• Full motor output at 40degreeC
• N2-FLN-mod bus embedded
• Lone works and profit bus available
• Swinging DC chokes – THD less up to 25%
• Pre-configured HVAC macros and software
• Help button always available
• Interactive start-up assistant

Full power range
0.75 to 355 kw, 200/240 V or 380/480 V, covering the vast majority of HVAC applications

Built-in EMC filters
EMC filters for 1^st environment, built-in as standard, eliminate the need for any external filtering in building technology

Real-time clock and calendar
The built-in real-time clock and calender function provides true time and date stamps to drive events. Information is displayed clearly on the control panel.

Built-in Timers
External timer circuits are no longer needed. Built-in timers – utilizing the real drive or changing the speed according to the time of day or night. Relay outputs can be operated with timers to control any auxiliary equipments on site.

The motor can deliver full output at 40degreeC – shouldn't the frequency converter do the same?
Abb's HVAC drive is rated for continuous operation to 40degreeC with full current. Without being compromised by temperature variations within any 24-hour period. Full circulation is available, precisely when needed – usually when it is hot outside. Similarly, IP 54 units can be operated without the need for de-rating up to 40degreeC. At a temperature of 50degree C, only 10% de-rating is required for both IP 21 and IP 54.

N2-FLN-Mod bus embedded
Commonly used HVAC field buses are embedded into the memory of the drive, ensuring that they are always there if you need them. ABB has a long history in building automation with more than 25,000 installed and running applications of N2 solutions alone.

Help button always available
The control panel has a built-in help function to guide the user, enabling clear text advice without the need to refer to manuals.

Interactive start-up assistant
The HVAC drive has an interactive start-up assistant that expertly guides the user through the start-up, without the need to refer to manuas.

Multilingual control panel with hand/off/auto
If you can use a mobile phone, you can use the control panel of the HVAC drive which features intuitive handling in 14 languages. Three process variables in engineering units or as a bar-chart are supported. Both IP 21 and IP 54 panels are detachable and able to copy parameters from one frequency converter to another. The panel can be also installed on the cabinet door with a fixing kit.

Swinging DC chokes – Up to 25% less harmonics
ABB's patent pending swinging DC choke lets the HVAC drive deliver up to 25% less harmonics at partial loads, compared to a conventional choke of equal size. There is no need to oversize the supply cables.

LonWorks and Profibus
Lonworks, profibus and other plug-in modules fit under the cover of the drive. A single twisted pair avoids great lengths of conventional cabling, reducing cost and increasing system reliability

Pre-configured HVAC application macros
14 different HVAC application macros, are pre-programmed into the HAVAC drive. Application macros for supply and return fans, cooling tower fans, booster pumps and condensers are available, jut to name a few. The user can create two additional application macros, selectable manually or through a digital input. To illustrate this, the user can create “summer” and “winter” application accroding to the time of the year.

HVAC software without compromises
Abb's HVAC drive delivers a complete solution with a tailor-made configuration that will save you time and money. For example, actual process values like differential pressure signals can be converted inside the frequency converter and displayed in engineering units like bar, I/s and degree C.

Motor protection with PTC or PT 100

Interactive maintenance assistant
Maintenance scheduling no longer requires guesswork. The HVAC drive alerts you when maintenance is required based on your individual requirements.

Fault logger
The fault logger of the HVAC drive is especially useful in tracking down drive failures through its use of the real-time clock

In addition to recording both time an date, the fault logger also takes a snapshot of 7 diagnostic values – like motor speed and output current. You know what happened and when

Versatile software tools
Drive window light 2 further facilitates commissioning and maintenance. Pump and fan save helps calculate energy savings and pay-back times. Drive Size optimizes the selection of the drive (frequency converter plus motor) according to the load requirements

Flange mounting
The HVAC drive can be flange-mounted to the side of an air duct or integrated with an air handling (AHU). By placing the heat sink of the HVAC drive in the air flow, additional cooling is achieved efficiently

Flux optimization
With flux optimization, the magnitude of the flux varies depending on th actual load. This results in reduced energy consumption and lower noise levels, silent operation mode further reduces noise in domestic applications.

Two PID controllers as Standard
The HVAC drive has two independent PID controllers built in. As an example one PID controller works with the frequency converter to maintain the duct static pressure. Simultaneously, the other PID controller can be used to control a separate external device, e.g. a chilled water level. All of this can, of course, be monitored and controlled through serial communications.