B221, 2-Way, Characterized Control Valve, Stainless Steel
B221, 2-Way, Characterized Control Valve
Stainless Steel Ball and Stem
Application
This valve is typically used in air handling units on heating or cooling coils, and
fan coil unit heating or cooling coils. Some other common applications include
Unit Ventilators, VAV box re-heat coils and bypass loops. This valve is suitable
for use in a hydronic system with variable flow.
Suitable Actuators
Non-Spring
LR, NR
B221
Spring
LF
Dimensions (Inches [mm])
Date created, 10/07/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.
D
Technical Data
Service
Flow Characteristic
Controllable Flow Range
Size [mm]
End Fitting
Body
Ball
Stem
Stem Packing
Seat
Seat O-ring
Characterized Disc
Body Pressure Rating [psi]
Media Temperature Range
(Water)
Max Differential Pressure (Water)
Close-Off Pressure
Cv
Weight
Leakage
Servicing
100167
chilled, hot water, up to 60% glycol
equal percentage
75°
0.75” [20]
NPT female ends
forged brass, nickel plated
stainless steel
stainless steel
EPDM (lubricated)
Teflon® PTFE
EPDM (lubricated)
No Disc (full flow)
600
0°F to 250°F [-18°C to 120°C]
C
H2
H1
E
F
B
A
LRB, LRX
A
9.4”
[239]
B
2.73”
[69]
C
5.79”
[147]
D
5.09”
[129]
E
F
1.3” [33]
H1
1.18”
[30]
H2
1” [25]
50 psi (345 kPa)
200 psi
24 0.9 lb [0.4 kg]
0% for A to AB
maintenance free
Flow Pattern
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B221, 2-Way, Characterized Control Valve
Stainless Steel Ball and Stem
Dimensions (Inches [mm])
D
E
C
F
B
A
LF
A
B
C
D
8.58” [218] 2.73” [69] 6.27” [159] 5.57” [141]
E
1.82” [46]
F
Dimensions (Inches [mm])
D
E
F
C
B
Date created, 10/07/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.
A
ARB N4, ARX N4, NRB N4, NRX N4
A
11.36”
[289]
B
C
D
2.73” [69] 7.85” [199] 7.15” [181]
800-543-9038 USA
E
2.44” [62]
F
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LF24-MFT-S US, Valve Actuator
Modulating, Spring Return, 24 V, Multi-Function Technology®
Date created, 10/06/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.
Technical Data
Power Supply
Power Consumption Running
Power Consumption Holding
Transformer Sizing
Electrical Connection
2201
24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%
2.5 W 1 W 5 VA (class 2 power source)
(2) 3 ft [1 m], 18 GA appliance cables with
1/2” conduit connectors
Overload Protection
electronic throughout 0° to 95° rotation
Operating Range Y
2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Ω,
1/4 W resistor), variable (VDC, floating point,
on/off)
Input Impedance
100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω for
4 to 20 mA, 1500 Ω for PWM, floating point
and On/Off
Feedback Output U
2 to 10 VDC, 0.5 mA max, VDC variable
Angle of Rotation
90°
Direction of Rotation (Motor)
reversible with built-in switch
Direction of Rotation (Fail-Safe) reversible with CW/CCW mounting
Position Indication
visual indicator, 0° to 95° (0° is full spring
return position)
Running Time (Motor)
150 sec (default), variable (75 to 300 sec)
Running Time (Fail-Safe)
<25 sec @ -4°F to 122°F [-20°C to 50°C], <
60 sec @ -22°F [-30°C]
Ambient Temperature Range
-22°F to +122°F [-30°C to +50°C]
Storage Temperature Range
-40°F to +176°F [-40°C TO +80°C]
Housing
NEMA 2, IP54
Agency Listings†
cULus acc. To UL 873 and CAN/CSA C22.2
No. 24-93
Noise Level (Motor)
<50 dB (A) Noise Level (Fail-Safe)
<62 dB (A) Servicing
maintenance free
Quality Standard
ISO 9001
Auxiliary Switch
1 x SPDT, 3A resistive (0.5A inductive) @ 250
VAC, adjustable 0° to 95° (double insulated)
†Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 3
*Variable when configured with MFT options.
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LF24-MFT-S US, Valve Actuator
Modulating, Spring Return, 24 V, Multi-Function Technology®
Wiring Diagrams
Line
Volts
Actuators with appliance cables are numbered.
11
Common
Red (2)
+ Hot
(–)
Wht (3)
Y Input
Only connect common to negative (-) leg of control circuits.
Position
Feedback VDC (+)
Wht (5)
U Output
A 500 Ω resistor (ZG-R01) converts the 4 to 20 mA control signal to 2
to 10 VDC.
On/Off
Actuators may also be powered by 24 VDC.
Control signal may be pulsed from either the Hot (Source) or Common
(Sink) 24 VAC line.
For triac sink the Common connection from the actuator must be
connected to the Hot connection of the controller. Position feedback
cannot be used with a triac sink controller; the actuator internal
common reference is not compatible.
Actuators may be connected in parallel if not mechanically linked. Power
consumption and input impedance must be observed.
IN4004 or IN4007 diode. (IN4007 supplied, Belimo part number
40155).
One built-in auxiliary switch (1x SPDT), for end position indication,
interlock control, fan startup, etc.
Meets cULus requirements without the need of an electrical ground
connection.
Apply only AC line voltage or only UL-Class 2 voltage to the terminals of
auxiliary switches. Mixed or combined operation of line voltage/safety
extra low voltage is not allowed.
!
3
Blk (1)
Provide overload protection and disconnect as required.
44
1
WARNING! LIVE ELECTRICAL COMPONENTS!
24 VAC Transformer (AC Only)
Line
Volts
Position
Feedback VDC
12
(–)
(+)
1
10
11
Blk (1)
Red (2)
Wht (3)
Common
+ Hot
Y Input
Wht
(5)
U Output
1
3
Floating Point
A
24 VAC Transformer
Line
Volts
5
Blk (1)
Common
Red (2)
+ Hot
Wht (3)
Y Input
Wht (5)
U Output
11
Ω 500 Ω
1/4 watt
Control Signal (–)
During installation, testing, servicing and troubleshooting of this
product, it may be necessary to work with live electrical components.
Have a qualified licensed electrician or other individual who has been
properly trained in handling live electrical components perform these
tasks. Failure to follow all electrical safety precautions when exposed to
live electrical components could result in death or serious injury.
A
VDC / mA (+)
7
VDC/mA Control
24 VAC Transformer (AC Only)
A
Line
Volts
Position (–)
Feedback VDC (+)
1
8
Blk (1)
Common
Red (2)
+ Hot
Wht (3)
Y Input
Wht (5)
U Output
11
PWM Control
24 VAC Transformer (AC Only)
Line
Volts
1
5
Blk (1) Common
Ω
Control Signal (–)
VDC/mA (+)
a
b
A
B
C
7
Functions
A
c
12
Red (2) + Hot
Wht (3) Y Input
(5)
U Output
Min
0%
Mid
50%
Max
100%
Normal Control mode acc. to Y
Override Control
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 10/06/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.
A
A
24 VAC Transformer
INSTALLATION NOTES
LF24-MFT-S US, Valve Actuator
Modulating, Spring Return, 24 V, Multi-Function Technology®
1
44
S1
S2
S3
NC
NO
0° to 95°
Date created, 10/06/2016 - Subject to change. © Belimo Aircontrols (USA), Inc.
Auxiliary Switches
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA / CARIBBEAN
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