Carrier 40UV Installation, Start-Up And Service Instructions Manual page 45
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Table 19 — Valve and Coil Pressure Drops vs Flow
UNIT
SIZE
COIL
SUPPLIED
(NOMINAL
ROWS
CFM)
1*
2*
500
3
4
5
1*
2*
750
3
4
5
1*
2*
1000
3
4
5
1*
2*
1250
3
4
5
1*
2*
1500
3
4
5
1*
2*
2000
3
4
5
LEGEND
Cv — Coefficient of Volume
*Hot water only.
NOTE: Desired Pressure Drop =
2-WAY STEAM VALVES — All steam valves utilize an
electrically driven hydraulic actuator which provides a full
modulating capability and a return feature. Each steam valve is
factory-equipped with a spring linkage extension to prevent
Application
Fluid Temperature
Steam Pressure Limits
Flow Type
Material
Valve Connections
Maximum Ambient Temperature
Actuator
Weight
NOTE: Avoid condensation which can facilitate corrosion. With 40 F (4 C) water, the maxi-
mum allowable ambient dew point temperature is 68 F (20 C). Piping insulation must not
stop drainage at actuator mounting nut. Do not use hydraulic actuators with fluid tempera-
tures below 40 F (4 C).
TYPICAL VALVE
VALVE
AND COIL
PRESSURE DROP
(Cv)
psi
gpm
2.5
3.1
4
2.5
3.3
4
2.5
3.3
4
2.5
3.3
4
2.5
3.3
4
2.5
3.1
4
2.5
3.5
4
2.5
3.3
4
2.5
3.3
4
2.5
3.3
4
2.5
3.6
4
2.5
3.5
4
4.0
4
6
4.0
4
6
4.0
4
6
2.5
3.6
4
2.5
3.5
4
4.0
6.7
8
4.0
6.7
8
4.0
6.7
8
2.5
3.6
4
2.5
3.8
4
4.0
10.8
10
4.0
10.8
10
4.0
10.8
10
2.5
3.6
4
2.5
3.8
4
4.0
10.8
10
4.0
10.8
10
4.0
10.8
10
2
desired gpm flow
(
)
flow from table
Table 22 — 2-Way Valve Specifications
Maximum
Maximum Inlet
Differential
Body
Stem
Seat
Plug
Packing
Disc
Voltage
Power
Connections
Table 20 — 2-Way Water Valve Specifications
COEFFICIENT
APPLICATION
Steam
Hot/Chilled Water
Chilled Water
Only
LEGEND
Cv — Coefficient of Volume
Table 21 — 3-Way Water Valve
Specifications and Ratings
COEFFICIENT
APPPLICATION
VOLUME
Hot/Chilled
Water
Chilled Water
Only
LEGEND
Cv — Coefficient of Volume
any actuator damage due to high steam temperatures. Steam
valve specifications and dimensions are found in Table 22 and
Fig. 35.
Steam
281 F (138 C)
35 psi (241 kPa)
20 psi (138 kPa)
Equal%
Bronze
Stainless Steel
Bronze
Brass
Spring Loaded Teflon
Composition
Female, Union Sweat
5
/
in. ID (
1
/
in. Nominal Copper) Tube
8
2
140 F (60 C)
24 Vac -15%, +10% 50/60 Hz
22 VA at 24 vac
Wire Leads
6.0 lb (3057 g)
45
and Ratings
FLOW
CLOSE-OFF
PRESSURE
VOLUME
POSITION
PSI
Cv
1.3
35
2.2
35
4.4
35
2.5
50
4.0
35
2.5
50
CLOSED
4.0
35
CLOSED
FLOW
CLOSE-OFF
NORMAL
PRESSURE
POSITION
PSI
Cv
2.5
50
4.0
35
2.5
50
CLOSED
4.0
35
CLOSED
NORMAL
OPEN
OPEN
OPEN
OPEN
OPEN
(COIL)
OPEN
OPEN
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