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Siemens
Product Guard
Warranty
Electro-Mechanical Rack and Pinion Actuator
24 Vac, Proportional or On/Off Control
0 to 10 Vdc or 2-position
Spring Return
Flowrite Globe
Flowrite Electro-Mechanical
Rack and Pinion.
Description
The Flowrite Electronic Rack and Pinion is designed for
use with 1/2- to 2-inch Flowrite two- and three-way valves
with a 3/4-inch stroke. A linkage fastens the actuator
and the valve body together and transforms the rotary
movement of the actuator output shaft to the linear motion
required to position the valve.
Features
• Brushless DC motor technology with stall protection
• Bi-directional fail-safe spring return
• All metal housing
• UL and C-UL listed
• Spring return to fail-safe position
Applications
The Flowrite Valves and Valve Actuators are used to
control water and glycol solutions to 50 percent in small
to large air handling units and central plant applications.
A-185
Valves
Siemens
Product Guard
PLUS 3 Warranty
www.usa.siemens.com/hvac
Page 2
Rack and Pinion Specifications
A-186
Power Supply
Operating Voltage ..................................................24 Vac, +20%, -15%
Frequency ................................................................................ 50/60 Hz
Power Consumption
599-03609 assembly
(with GCA161.1U actuator) ..................... 9 VA running, 5 VA holding
599-03611 assembly
(with GCA121.1U actuator) ..................... 8 VA running, 3 VA holding
Equipment Rating ......................... Class 2, in accordance with UL/CSA
Control Signal ............. (599-03609 assembly with GCA161.1U actuator)
Input Signal
Voltage Input.............................................0 to 10 Vdc (max. 35 Vdc)
Input Resistance .........................................................100K Ohms
Current Input..................................................................... 4 to 20 mA
Input Resistance ........................................................... 500 Ohms
Position Output Feedback Signal ............0 to 10 Vdc, ±1 mA maximum
Mounting
Nominal Angle of Rotation ................................................................. 90°
Maximum Angular Rotation ............................................................... 95°
Noise Level ............................................................... <45 dBA (running)
Enclosure .........................................NEMA 2 in vertical to horizontal 90
Ambient Operating Temperature ..............-25 to +130° F (-32 to +55°C)
Storage and Transport Temperature ........-25 to +158° F (-32 to +70°C)
Ambient Humidity ............................................95% RH, non-condensing
Agency Certication ......................................................................UL873
C-UL certied to Canadian Standard C22.2 No. 24-93
Pre-connected Cable ..............................................18 AWG, 3 ft. (0.9 m)
Rack and Pinion Product Ordering
Description Part No.
0 to 10 Vdc, Spring Return 599-03609 298
2-position, Spring Return 599-03611 299
Bracket Only 599-03610 —
Table Note
The linkage, OpenAir Actuator, and Flowrite Valve are available as an assembly. Refer to: TB 249, Flowrite Valve and Actuator Assembly
Selection Technical Bulletin, 155-304P25 for details and product numbers.
Actuator Prex Code
Valves
Dimensions
Normal Duty Application as Shipped from Factory
Dimensions shown in inches (mm).
Accessories & Service Kits
www.usa.siemens.com/hvac
A-257
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