Daikin AVV - Page 28

IM 817-7 28 www.DaikinApplied.com
3-Way Modulating Valve (Chilled Water, Hot
Water or Combination)
Three-way modulating control valves for MicroTech are
designed to regulate the ow of hot or chilled water or
the combination. They consist of a nickel plated brass
body and stem with chrome plated brass ball valve, with
a spring return, proportional actuator. The optional valve
accessory is shipped separate from the unit ventilator
for eld installation to prevent shipping damage and to
provide exibility in making the eld piping connection.
Figure 75: 3-Way Modulating Valve (Chilled Water, Hot
Water or Combination) Dimensions
B
A
C
D
E F
AB
A
Table 24: 3-Way Actuator Specifications (CW, HW, CW/HW)
Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10%
Electrical Connection
3ft [1m], 18 GA plenum cable with 1/2"
conduit connector
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)
Input Impedance
100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω
for 4 to 20 mA
Feedback Output U 2 to 10 VDC, 0.5 mA max
Angle of Rotation Max. 95°, 90°
Position Indication
visual indicator, 0° to 95° (0° is full spring
return position)
Running Time (Motor) 95 sec
Running Time (Fail-Safe) <25 sec
Ambient Humidity max. 95% RH non-condensing
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]
Table 25: 3-Way Valve Body Specifications (CW, HW, CW/HW)
Service chilled, hot water, up to 60% glycol
Flow Characteristic
A-port Equal percentage; B-port modied
linear for constant ow
Controllable Flow Range 75°
Body Pressure Rating [psi] 600
Media Temperature Range
(Water)
0°F to 250°F [-18°C to 120°C]
Max Differential Pressure
(Water)
50 psi (345 kPa)
Close-Off Pressure 200 psi
Table 26: 3-Way Modulating Valve 1/2″ – Dimensions
Valve Part No. Cv
Connection Size
(inches)
A B C D E F
B309(B) 0.8
1/2"
6.59" (167mm) 2.38" (60mm) 4.9" (124mm) 4.32" (110mm) 1.53" (38mm) 1.2" (31mm)B310(B) 1.2
B311(B) 1.9
B312(B) 3.0
6.59" (167mm)
2.38" (60mm) 4.9" (124mm) 4.71" (120mm) 1.53" (38mm) 1.29" (33mm)
B313(B) 4.7
B318(B) 7.4 2.73" (69mm) 5.5" (140mm) 4.8" (122mm) 1.53" (38mm) 1.47" (37mm)
Table 27: Modulating 3-Way Hot Water, Chilled Water or 2-Pipe CW/HW Valve 1/2″ – Pressure Drop
Pressure Drop Across the Valve
3-Way CCV Part
No.
Cv
Maximum
Rating
Connection
Size
1 PSI 2 PSI 3 PSI 4 PSI 5 PSI 6 PSI 7 PSI 8 PSI 9 PSI 10 PSI
B309(B) 0.8
1/2"
0.8 1. 1.4 1.6 1.8 2.0 2. 2.3 2.4 2.5
B310(B) 1.2 1.2 1.7 2. 2.4 2.8 2.9 3.2 3.4 3.6 3.8
B311(B) 1.9 1.9 2.7 3.3 3.8 4.2 4.7 5.0 5.4 5.7 6.0
B312(B) 3.0 3.0 4.2 5.2 6.0 6.8 7.3 7.9 8.5 9.0 9.5
B313(B) 4.7 4.7 6.6 8.1 9.4 11 12 12 13 14 15
B318(B) 7.4
7.4 10 13 15 17 18 20 21 22 23