Data sheet ABRA 24V Thermo-hydraulic Actuator - Patriot Supply
Data sheet
ABRA 24V Thermo-hydraulic Actuator
Applications:
internal end switch closes. The slow actuation of the valve is desirable to eliminate water hammering which is associated with quick acting valves. Features: • Compact • Low maintenance • 24V AC or DC power source • Low power consumption • Available in normally closed with end switch • Visual position indicator • Quick removal from valve Typical applications include: • Radiator, baseboard, or fin tube heating systems • Hydronic floor heating systems • Hot water service systems • Hot/ chilled water for air handlers • Low pressure steam systems
Danfoss’ ABRA style of actuator is a 24 volt AC or DC powered thermo-hydraulic actuator. When the ABRA is energized, an internal wax element gradually heats up opening the valve and when the actuator opens halfway, the
Ordering Information:
Cross-over Reference Chart:
Code No.
Type
Suitable Valves
Actuator Position (w/o power)
082F1085
ABRA
RA2000, RA-C
NC, w/ end switch
Old Code No.
082F1089
Technical Specifications:
Replaced Code No. Replaced with
082F1085
Type
ABRA
Suitable applications
1) Chilled or hot water applications 2) Low pressure steam systems
Supply voltage
24V ac/dc, 50/60Hz
Power consumption
1.8W
Travel time for full open
Approx. 3 min.
Ambient temperature
32° - 140°F (0° - 60°C)
Wire lead length
3ft (1 m)
End switch, max. output
24Vac: 3A ohm inductive load, 1A inductive load
Maximum ∆p (ABRA)
8.7psi (0.6 bar)
VDSKD122 © Danfoss 05/09
1
Data sheet
System Layout:
ABRA 24V Thermo-hydraulic Actuator
Radiant floor heating application
RET Thermostat End Switch
Single Zone Controller
24V Transformer
ABRA Assembly
Circulator
Radiant Floor
Electronic control of radiator
RET-B Thermostat
Radiator
24V Transformer ABRA Assembly
Zone control on multiple loop manifold
Zone Valve Controller
FH-WS Thermostat
AVDO Pressure By-pass
2
VDSKD122 © Danfoss 05/09
ABRA Assembly on manifold
Data sheet
ABRA 24V Thermo-hydraulic Actuator
Installation:
Proper installation of the ABRA actuators should not be oriented upside down. The improper orientation of the thermo-wax actuator may result in susceptibility of short circuit due to potential leakage of water.
ABRA allowable orientation 1With a 2mm Allen key securely tighten the adapter ring to the RA2000 or RA-C valve.
2-
Position the electronic head over the adapter ring and push the actuator head down onto the adapter.
3-
click
Press the actuator head down until a click is heard. After mounting the actuator, apply 24Vac to the actuator for a minimum of 6 minutes to unlock the first open function of the actuator.
4To remove the actuator head press the button on the front and lift the head off the adapter ring.
If the ABRA is used on a low-pressure steam system, the orientation of the actuator should be in a horizontal position to ensure proper airflow across the actuator. If it is mounted
VDSKD122 © Danfoss 05/09
within an enclosure, proper airflow through the enclosure is essential to reduce the increased ambient air temperature’s influence on the thermo-wax actuator.
3
Data sheet
ABRA 24V Thermo-hydraulic Actuator
Wiring:
Yellow / Yellow 24 AC/DC 50/60 Hz
Red / Red End switch
Dimensions:
Typical Specification:
The electronic actuator shall be a compact design capable of operating by either 24V AC or DC with a low power consumption. The actuator shall be of a thermo-hydraulic design with a
quick method for removal from the installed valve. The actuator shall have a visual indicator to identify the position of travel.
Danfoss can accept no responsibility for possible errors in printed materials and reserves the right to alter its products without notice. All trademarks in this material are property of the respective companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
4
Danfoss Inc.
Danfoss Inc.
Toronto, ON Tel.: 905-285-2050, Fax: 905-285-2055 www.na.heating.danfoss.com
Baltimore, MD Tel.: 443-512-0266, Fax: 443-512-0270 www.na.heating.danfoss.com
VDSKD122 © Danfoss 05/09
ABRA 24V Thermo-hydraulic Actuator
Applications:
internal end switch closes. The slow actuation of the valve is desirable to eliminate water hammering which is associated with quick acting valves. Features: • Compact • Low maintenance • 24V AC or DC power source • Low power consumption • Available in normally closed with end switch • Visual position indicator • Quick removal from valve Typical applications include: • Radiator, baseboard, or fin tube heating systems • Hydronic floor heating systems • Hot water service systems • Hot/ chilled water for air handlers • Low pressure steam systems
Danfoss’ ABRA style of actuator is a 24 volt AC or DC powered thermo-hydraulic actuator. When the ABRA is energized, an internal wax element gradually heats up opening the valve and when the actuator opens halfway, the
Ordering Information:
Cross-over Reference Chart:
Code No.
Type
Suitable Valves
Actuator Position (w/o power)
082F1085
ABRA
RA2000, RA-C
NC, w/ end switch
Old Code No.
082F1089
Technical Specifications:
Replaced Code No. Replaced with
082F1085
Type
ABRA
Suitable applications
1) Chilled or hot water applications 2) Low pressure steam systems
Supply voltage
24V ac/dc, 50/60Hz
Power consumption
1.8W
Travel time for full open
Approx. 3 min.
Ambient temperature
32° - 140°F (0° - 60°C)
Wire lead length
3ft (1 m)
End switch, max. output
24Vac: 3A ohm inductive load, 1A inductive load
Maximum ∆p (ABRA)
8.7psi (0.6 bar)
VDSKD122 © Danfoss 05/09
1
Data sheet
System Layout:
ABRA 24V Thermo-hydraulic Actuator
Radiant floor heating application
RET Thermostat End Switch
Single Zone Controller
24V Transformer
ABRA Assembly
Circulator
Radiant Floor
Electronic control of radiator
RET-B Thermostat
Radiator
24V Transformer ABRA Assembly
Zone control on multiple loop manifold
Zone Valve Controller
FH-WS Thermostat
AVDO Pressure By-pass
2
VDSKD122 © Danfoss 05/09
ABRA Assembly on manifold
Data sheet
ABRA 24V Thermo-hydraulic Actuator
Installation:
Proper installation of the ABRA actuators should not be oriented upside down. The improper orientation of the thermo-wax actuator may result in susceptibility of short circuit due to potential leakage of water.
ABRA allowable orientation 1With a 2mm Allen key securely tighten the adapter ring to the RA2000 or RA-C valve.
2-
Position the electronic head over the adapter ring and push the actuator head down onto the adapter.
3-
click
Press the actuator head down until a click is heard. After mounting the actuator, apply 24Vac to the actuator for a minimum of 6 minutes to unlock the first open function of the actuator.
4To remove the actuator head press the button on the front and lift the head off the adapter ring.
If the ABRA is used on a low-pressure steam system, the orientation of the actuator should be in a horizontal position to ensure proper airflow across the actuator. If it is mounted
VDSKD122 © Danfoss 05/09
within an enclosure, proper airflow through the enclosure is essential to reduce the increased ambient air temperature’s influence on the thermo-wax actuator.
3
Data sheet
ABRA 24V Thermo-hydraulic Actuator
Wiring:
Yellow / Yellow 24 AC/DC 50/60 Hz
Red / Red End switch
Dimensions:
Typical Specification:
The electronic actuator shall be a compact design capable of operating by either 24V AC or DC with a low power consumption. The actuator shall be of a thermo-hydraulic design with a
quick method for removal from the installed valve. The actuator shall have a visual indicator to identify the position of travel.
Danfoss can accept no responsibility for possible errors in printed materials and reserves the right to alter its products without notice. All trademarks in this material are property of the respective companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
4
Danfoss Inc.
Danfoss Inc.
Toronto, ON Tel.: 905-285-2050, Fax: 905-285-2055 www.na.heating.danfoss.com
Baltimore, MD Tel.: 443-512-0266, Fax: 443-512-0270 www.na.heating.danfoss.com
VDSKD122 © Danfoss 05/09
