On/off programmable room thermostat used to control two or four pipe heating cooling system.
Modulating geared actuator with bus connectivity used to control pressure independent balancing and control valves DN10-32.
Control signal - hybrid version: BACnet MS/TP, Modbus RTU*, 0-10V/2-10V, 0-20/4-20mA Control signal - digital version: BACnet MS/TP, Modbus RTU* Actuator functions remotelly accessible via the bus:
Supply Voltage: 24V AC/DC Spindle position accuracy: ±0.05mmCables: Halogen free plug-in available in 1.5m, 5m and 10m lengthIP Class: 54 Stroke: 7mm BACnet Testing Laboratories (BTL) listed BACnet MS/TP fieldbus device** Manual operation*Modbus RTU will be available in Q2.2016**BACnet certification in progress and will be available in Q2.2016
In a 4-pipe change-over system switching flow between heating and cooling circuits is done with a 6-port motorized ball valve, controlled by a single digital signal.Flow control for heating and cooling circuit is performed by a separate pressure independent control valve and modulating actuator.*6-port ball valve:
6-port ball valve actuator:
Combined height and weight of 6-port valve and actuator shall not exceed 190 mm and 450 g respectively.*A separate tender text is available for the Danfoss AB-QM pressure independent balancing & control valve , AME110NL 0-10 V actuator and NovoCon fieldbus actuator.
Branch should be balanced with a differential pressure controller for dynamic hydronic balance, with following characteristics:
The pressure independent balancing and control valve which means that the control characteristic is independent from the available pressure. The precise flow control performance of the AB-QM with a Danfoss actuator provides increased comfort and superior Total Cost of Ownership. The AB-QM ensures and control the required flow on every terminal unit and maintains Hydronic balance in the system.AB-QM has following features:
Available in the range from DN 10 – 250 from one supplier.
a. Pressure class: PN 16
b. Temperature range: 0 … +120 °C
c. Connection size: DN 15-50
d. Connection type: Internal thread ISO 7/1 (DN 15-50), External thread ISO 228/1 (DN 15-50)
e. Δp setting range: 5-25 kPa, 20-60 kPa
f. Max differential pressure across valve:1.5 bar
g. Installation: differential pressure controller should be mounted on return pipe with connection via impulse tube to supply pipe.
Domestic hot water installations should be balanced with thermostatic balancing valve for a constant water temperature in the system with following characteristics:
Product is a manual valve for balancing flow in heating, cooling and domestic hot water systems. Branch should be balanced with a manual pre-setting valve with test plugs for commissioning or/and flow verification, with following characteristics:
Product is a manual presetting valve for balancing the flow in heating and cooling installations.
Modulating geared actuator used to control pressure independent balancing and control valves DN10-32.
*AME 110 NLX variant**AME 120 NL variantFor tender texts for AME 435QM, AME55QM, AME85QM use tender text of AME 435, AME55, AME85.
3-point modulating geared actuator used to control pressure independent balancing and control valves DN 10-32.
*AMV 120 NL variant
Modulating thermal actuator used to control pressure independent balancing and control valves DN 10-32.
*LIN variant available**normally open variant available***6.5 mm variant available****24 V DC variant available
On/off thermal actuator used to control pressure independent balancing and control valves DN 10-32.
*230 V varriant**halogen free cables available only for normally closed variant***normally open variant available
The actuators AME 435 QM for modulating control is used with pressure independent balancing and control valve type AB-QM from DN 40 to DN 100.
The actuator AME 55 QM is used with pressure independent balancing and control large valve type AB-QM DN 125 and DN 150.
AME 85QM actuator is used together with large pressure independent balancing and control valves type AB-QM DN 200 and DN 250.