How to Install a Danfoss Valve Actuator

A Quick Guide To Wiring and Setting Up a Danfoss Actuator On  Valve

The Danfoss valve actuators in HVAC

Danfoss steam components will keep your application completely safe and under control. Steam serves a significant role as an efficient energy carrier, particularly in industrial settings. 

Additionally, steam is frequently used for hot water preparation or area heating. Safety and efficient steam control is critical when working with steam at high temperatures. 

As a result, Danfoss offers control components that are specifically developed to meet the highest levels of control and safety.

What does a Danfoss Actuator do?

Danfoss actuators are devices used to either manage or move, a valve opening or closing of a valve. It connects to and works with two components: the valve body and the valve pilot.

How does a Danfoss Actuator work?

Electrical actuators from Danfoss for use with control valves offer a new level of ease thanks to their superior control performance and quality features. 

The actuators reduce risk by improving overload protection, ensuring the actuator's trouble-free operation inside the system. The water is controlled reliably and precisely by the motorised control valves. As a result, temperature regulation is improved, resulting in increased user comfort. 

To achieve optimal control performance, good control ratios and rapid response times to changes in household hot water supply requirements are only a few of the elements required.

The Danfoss AMV and AME actuator ranges

The ranges of Danfoss AMV and AME include a set of Actuators and are generally used in district heating/cooling, heating, and ventilation to control the valve in response to a controller's demand and heating and cooling systems.

Electronic controllers with 3-point output can control AMV actuators: 

The Danfoss 082G3440 is a Plant Valve Actuator, part of the AMV655 range. This actuator has no safety function and suits Valve VFM2 DN200-DN250.

The Danfoss 082G3442 is a Plant Valve Actuator, part of the AME655 range. This actuator has no safety function and suits Valve VFM2 DN200-DN250

The Danfoss 082G3448 is a AB-QM Spring Return Actuator, part of the range AME658. This actuator has a safety function and suits valve DN125-DN150.

The Danfoss 082G3450  is a AB-QM Spring Return Actuator, part of the range AME658.  This actuator has safety function and suits valve DN125-DN150.

The Danfoss 082G3500 is a Plant Valve Actuator, part of the range AME658.  This actuator has a safety function and suits VF3 DN200-DN300.

The Danfoss 082H5013 is a AB-QM Spring Return Actuator, part of the range AME685-1. This actuator has a safety function and suits valve DN200-DN250.

Danfoss official guide and recommendations on how to set up an actuator on a valve

Here following a video posted by Danfoss, where an engineer explains how to proceed with the installation, wiring and commissioning of the Valve Actuator part of the lines AMV and AME 655, 655GA, 658, 659, 685.

It is strongly recommended to always follow these instructions and the informative paper inside the Danfoss Actuator packaging.

A 20-step guide on how to install a Danfoss valve actuator

The following instructions have been taken from the video posted above and refers to the Danfoss Actuators AMV 655, 655GA, 658, 659, 685 and AME 655, 655GA, 658, 659, 685.

The First Part of the process depends on the type of installation:

Installing a Danfoss Valve Actuator in vertical installations:

Step 1:  Set the actuator to the valve neck

Step 2:  Secure the actuator clamp, make sure this part is tightened on the valve neck by using a 13 mm wrench key.

Installing a Danfoss Valve Actuator in horizontal installations:

Step 1: Remove the clamp

Step 2: Set the actuator from the side of the valve neck.

Step 3: Put the clamp back and secure it firmly

From Step 3, the process to be followed is the same for all the cases.

Then loosen the spindle clunch on the actuator with a 4 mm Allen key.

Step 4: To connect the actuator with the valve spindle, use the manual operation knob to drive the actuator downwards.

Step 5: To connect the spring return actuator, detach the manual operation knob with a torx t10 key and pull it upwards. The safety spring is now ready for manual operation.

Step 6: When the actuator clutch and valve are connected, we tightly secure the spindle clutch.

Step 7: To prepare the actuator for the operation we have to remove the service cover with a Torx t10 key.

Step 8: For wiring purposes, the gland support blade and two-wire connectors need to be removed as well.

Step 9: The M16 or M20 cable gland need needs to be selected with the cable diameter and fixed on following the gland support bar hole.

Step 10: Put the cable through the gland and fix it.

Step 11: The wires and actuator connectors need to be connected according to the wiring diagram in the instruction document.

Step 12: Set the support glance bar block to the actuator and connect the wiring connectors to the actuator pins.

Step 13: The actuator commissioning switching is by default in the Off position. To deactivate the desired function the deep switch needs to be put in the On position.

• Switch one enables a speed selection of two or six seconds per millimetre deep

• Switch two enables direct inverse acting of the actuator towards the control signal

• Switch three enables 0 to 10 volts to 20 milliamps or 2 to 10, 4 to 20 milliamps control of the actuator in combination with deep switch eight.

• Switch four enables the modification of the characteristic which is defined by potential meter CM. 

• For equal percentage characteristics of the actuator, switch the CM clockwise.

• Switch five enables the actuator manual stroke limitation. 

To run this action, press the reset button and hold it for 5 seconds. When the red indicator light starts flashing, it means the position limitation setting can commence.

Step 14: Set the upper position by pressing the up or down buttons accordingly until it reaches the desired position.

Step 15: Press reset for 5 seconds until the down position button starts flashing in red for the actuator to memorize the upper position setting

Step 16: Set the lower position setting as for the upper position explained in the previous steps 14 and 15.

Step 17: The actuator will now position itself with the control signal

Step 18: Switch six enables constant or pulse output settings

• Switch seven enables anti oscillation function
• Switch eight enables current or voltage control
• Switch nine enables voltage or current signal on the X terminal

Step 19: To enable electrical manual operation functionality, press the reset button for one second.

Step 20: The UP and DOWN buttons will appear in red and are ready to be used.Finally, close the service cover and you’re all set! 

IACS Danfoss Valve Actuator Guide 

IACS have provided an overview of what a Danfoss valve actuator does, how it works, and how to install it in an HVAC system and an AHU unit.Our team at IACS strives for excellence in everything we do, and we work to provide our customers the best services and match them with the best products. 

If you want to add anything related to Danfoss Valve Actuators, ask any questions or share your experiences with IACS, don’t hesitate to contact our support team, we would love to hear from you! 

You can email us at support@i-acs.co.uk or give us a call at +44 (0)20 81333 679 and we’ll be happy to assist.