Siemens VVG44.15-1U, VVG44.15-1S, VVG44.15-1.6U, VVG44.15-1.6S, VVG44.15-2.5U Technical Instructions

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Page 1

VE VVG Series

Technical Instructions

Electronic Two

way Valves

Normally Closed

Document No. 155-112P25

VE VVG-1

Rev. 3 August, 2002

Description

Features

Application

The VE VVG electronic two-way valves control the flow of water or glycol solutions. The electronic actuator requires a 24 Vac supply and receives a 0 to 10 Vdc cont rol signal to control the 7/32-inch (5.5 mm) nominal stroke valve.

• Maintenance free actuator with reversible motor.

• Selector plug on actuator permits selection of linear or equal percentage flow

characteristics.

• Reduced seat diameter produces reduced Cv (Kvs) in 1/2-inch valve bodies.

• 0 to 10 Vdc or 0 to 1000 ohms signal input.

• Position output signal 0 to 10 Vdc.

• Available with union or sweat end connect ions (1/2-inch and 3/4-i nch).

• Double O-ring packing with Teflon® wiper.

• Manual override knob with indication of stroke allows for repositioning of the valve

in power-off condit ions (SQS65U only).

• Spring return closes f low port i n power-of f condition (SQS65.5U only). Use the VE VVG as a control and shutoff valve in small to medium HVAC installations

for hot water and chill ed water applications. Use in closed circ uits only.

NOTE: This valv e is not designed for steam applications. See valve body

specifications for details.

Product Numbers and Ordering Information

Order the valve and actuator separately. See Table 1 for product information.

Siemens Industry, Inc.

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VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Product Numbers and Ordering Information, Continued

Table 1. Product Information.

Nominal

Valve Size

Inches

(mm)

1/2 (15) 0.47 (0.4) VVG44.15-0.4U VVG44.15-0.4S SQS65U SQS65.5U 50 232 (1600) 58 (400) 1/2 (15) 1.17 (1) VVG44.15-1U VVG44.15-1S SQS65U SQS65.5U 50 123 (850) 58 (400) 1/2 (15) 1.87 (1.6) VVG44.15-1.6U VVG44.15-1.6S SQS65U SQS65.5U 100 123 (850) 58 (400) 1/2 (15) 2.92 (2.5) VVG44.15-2.5U VVG44.15-2.5S SQS65U SQS65.5U 100 58 (400) 58 (400) 1/2 (15) 4.68 (4) VVG44.15-4U VVG44.15-4S SQS65U SQS65.5U 100 58 (400) 58 (400) 3/4 (20) 7.37 (6.3) VVG44.20-6.3U VVG44.20-6.3S SQS65U SQS65.5U 100 116 (800) 58 (400) 1 (25) 11.7 (10) VVG44.25-10U - - - SQS65U SQS65.5U 100 585 (400) 43.5 (300) 1-1/4 (32) 18.7 (16) VVG44.32-16U - - - SQS65U SQS65.5U 100 32 (225) 29 (200) 1-1/2 (40) 29 (25) VVG44.40-25U - - - SQS65U SQS65.5U 100 14.5 (100) 14. 5 (10 0)

Max ∆ P * = Maxi mum rec ommend ed differential pr essure for modulating ser vice.

Specifications

Actuator

Power Requirement s

Cv (Kvs) Valve Prod uct Number Actuator Pr od uct Number Spring & Non-Spring Retur n

Union Sweat Non-

Spring Return

Spring Return Range-

Ability

Close-Off

psig (kPa)

Max ∆ P *

psig (kPa)

Operating Voltage 60 Hz 24 Vac, +20%, -15% 50 Hz 24 Vac, ± 20%

Power Consumpti on SQS65U 4.5 VA SQS65.5U 7 VA

Functional Operation Running Time

At 60 Hz 30 seconds At 50 Hz 35 seconds

Spring Return (SQS65.5U only) ≈8 seconds Nominal Strok e 7/32-inch (5.5 mm) Nominal Force 67 lbs. (300 N)

Control Characteristics Control Signal (Y )

Voltage 0 to 10 Vdc Current 0.1 mA Input Impedance 100K ohms

Control Signal (R) Resistance 0 to 1000 ohms

Position Output (U) Voltage 0 to 10 Vdc Current 0.5 mA maximum

Flow Characteristic Linear or equal percentage

Environmental Conditions Ambient Temperature

Operating 5°F to 122°F (-15°C to 50°C) Transport and storage -13°F to 149°F (-25°C to 65°C)

Physical Characteristics Weight

SQS65U 1.1 lbs. (0.5 kg) SQS65.5U 1.3 lbs. (0.6 kg)

Dimensions See Figure 6

Page 2 Siemens Industry, Inc.

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VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Specifications, Continued

Body Style Globe Body Bronze Connections Union with brass nut, composi te

Valve

Composition

gasket, forged bronze tail piece with internal NPT or Sweat end for use in 7/8-inch ODcopper tubi ng

Trim 1/2-inch and 3/4-inch Stainless Steel 1-inch to 1-1/2 inch Bronze

Packing Double O-ring Body Rating ANSI 125 (PN 16)

Operating Conditions Line Size/Capacity See Tables 1 and 2

Medium Water, glycol to 50% Rangeability See Table 1 Flow Characteristics II to I Field selectable. See Start-up section. Leakage Rate 0.02% of Cv Medium Temperature 36 to 248°F (2 to 120°C) Maximum Inlet Pressure 232 psig (1600 kPa) Maximum Pressure Differential for

Modulating Service See Table 1 Close-Off Press ure See Table 1

Agency Approvals

UL UL873 C-UL Certified to Canadian

Standards CSA C22.2 No. 24-93

Physical Characteristics Weight See Figure 6

Dimensions See Figure 6

Table 2. Maximum Water Capacity — US Gallons per Minute.

Valve

1/2 (15) 0.47 (0.4) 0.66 0.94 1.15 1.32 1.48 1.81 2.09 12.34 2.56 2.96 3.31 1/2 (15) 1.17 (1.0) 1.65 2.34 2.87 3.31 3.70 4.53 5.23 5.85 6.41 7.40 8.27 1/2 (15) 1.87 (1.6) 2.65 3.74 4.59 5.29 5.92 7.25 8.37 9.36 10.25 11.84 13.24 1/2 (15) 2.92 (2.5) 4.14 5.85 7.16 8.27 9.25 11.33 13.08 14.63 16.02 18.50 20.68 1/2 (15) 4.68 (4.0) 6.62 9.36 11.46 13.24 14.80 18.13 20.93 23.40 25.63 29.60 33.09 3/4 (20) 7.37 (6.3) 10.42 14.74 18.06 20.85 23.31 28.55 32.96 36.86 40.37 46.62 —

1 (25) 11.7 (10) 16.55 23.40 28.66 33.09 37.0 45.31 52.32 58.5 64.08 — — 1-1/4 (32) 18.7 (16) 26.47 37.44 45.85 52.95 59.2 72.5 — — — — — 1-1/2 (40) 29 (25) 41 58 71 82 91 112 — — — — —

Siemens Industry, Inc. Page 3

Kvs 2 4 6 8 10 15 20 25 30 40 50

Pressure Differential (psi)

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VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Warning/Caution Notations

Operation

WARNING:

Personal injury or loss of life may occur if you do not perform a procedure as specified.

CAUTION:

Equipment damage may occur if you do not follow procedure as specified.

The arrow on the valve indicates the direction of flow. The direction of flow is always from II (A ) to I (AB). See Figure 1.

CAUTION:

Removing the bottom cap will not convert the two-way valve into a three-way valve.

Installation

Figure 1. VVG Val ve Direction of Flow.

An electronic motor actuator positions the valve. A continuous 0 to 10 Vdc signal controls the actuator.

The valve provides a linear flow characteristic. A selector plug on the SQS… actuator allows selection of linear or equal percentage flow characteristic. The valve stroke is proportional to the control signal with linear flow selected. See Figure 4.

A zero voltage control signal returns the valve to its "0" position. In the event of a power failure, the SQS65U holds its last position, and the SQS65.5U returns the valve to its fail-saf e position.

The position output 0 to 10 Vdc signal "U" produces position feedback to the field panel. An additive control input at R for 0 to 1000 ohms allows control by either a low

temperature det ector or a remote setting unit.

• The valve assembly can be installed in the supply or return line. NOTE: For hot water installations, it is recommended to place the valve in the return

line because the tem perature is lower.

• Match the direction of flow with the symbol cast on the valve body. See Figure 1.

• Allow 8 inches (200 mm) of cl earance for installation and servi ce.

Page 4 Siemens Industry, Inc.

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VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Installation, Continued

• Mount the assembly in any position except with the actuator beneath the valve. See Figure 2 for allowable mounting positions.

• Before installing the actuator, use a protective plastic cap (Figure 1) to manually position t he valve. The plastic cap opens up to 80% flow from II (A) to I (AB). The valve cannot be fully opened using the plastic cap.

NOTE: Do not discard the plastic cap. It may be needed during troubleshooting or for

emergency valve operation.

CAUTION:

Dirt in the piping system can cause valve problems. Before starting-up and troubleshooting the valve, make certain that the piping system is free of dirt and foreign particles. It is recommended that a filter is placed upstream of the valve.

Wiring

Figure 2. Mounting Positions.

WARNING:

On valve actuator wiring code, "G" is 24 Vac HOT, not ground.

Figure 3. Terminal Connections in Actuator.

G, G0 24 Vac operating voltage

G = System potential G0 = System neutral

Y 0 to 10 Vdc control signal R Input for 0 to 1000 ohms remote

setting unit or low temperature detection unit

M Measuring neutral

U Output for 0 to 10 Vdc position

indication

Siemens Industry, Inc. Page 5

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VE VVG Electronic Two-way Valves Technical Instructions

Document Number 155-112P25

Rev. 3 August, 2002

Wiring, Continued

Start-Up

• All units that connect to terminals Y and U, together with the SQS65U, must connect to the same G0.

• When wiring the position output to AI terminations, connect terminal U to SIG and terminal G0 to COM.

• The factory-fitted link across terminals R and M can be removed only if a unit connects between these terminals.

Remove the actuator cover and verify the selector plug is set for the desired flow characteristic. See Figure 4.

Position Flow Characteristics

A-C Equal Percent age (Factory Setting) C-B Linear

Equal Percentage Linear

O O

A C B A C B

•

V = Volumetric flow 1 to

100%

YU = 0 to 10 Vdc control

signal

Troubleshooting

Service

YR = 0 to 1000 ohm

resistance signal

Figure 4. Selector Plug Setting for Flow Characteristic.

• Check wiring f or appropriate connections (Figure 3).

• Check selector plug for proper flow characteristic.

• Check valve operation. Thread plastic valve cap (Figure 1) onto top of valve. Turn it

to adjust valve position.

Stem Packing

Figure 5. VVG Valve Constructi on.

If either valve or actuator is inoperative, replace that unit.

WARNING:

To avoid personal injury, do not attempt to repair the valve.

Page 6 Siemens Industry, Inc.

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Technical Instructions VE VVG Electronic Two-way Valves Document No. 155-112P25 Rev. 3 August, 2002

Dimensions

Figure 6. Dimensions for SQS65U… Actuator and VVG 44 Valve.

Nominal

Valve

A AA

Size

in (mm)

1/2

(15)

3/4

(20)

(25)

1-1/4 (32) 4-5/32

1-1/2

(40)

Information in this publication is based on c urrent specific ations. Th e company reserves the rig ht to make changes in specifications and models as design improvements are introduced. APOG EE is a trademark of Siemens Industry, Inc. Other prod uct or company nam es mentioned herein may be the trademarks of t heir resp ective own ers. © 2002 Siemens Industry, Inc.

Siemens Industry, Inc.

Building Technologies Division 1000 Deerfield Parkway Buffalo Grove, IL 60 089 + 1 847-215-1000

3-15/16

(100)

3-15/16

(100)

4-5/32

(105)

(105) 5-1/8

(130)

5-13/16

(148)

5-29/32

(150)

6-5/16

(160)

6-11/16

(170)

7-13/16

(198)

C Metric

Thread D G H J M N

G 1” 11/32

G 1-1/4” 3/8

G 1-1/2” 3/8

G 2” 7/16

G 1-1/2”

2-1/2

(8.5)

(9)

(11)

7/16

(11)

2-9/32

(58)

2-5/16

(59)

2-15/32

(62.5)

2-1/2

(63.5)

(76)

Your feedback is important to us. If you have comments about this docu ment, please send them tosbt_technical.editor.us.sbt@siemens.com

2-1/2

(63)

3-1/16

(78)

3-3/16

(81)

3-7/16

(87.5)

3-9/16

(90.5)

2-3/32

(53)

2-11/16

(68)

2-25/32

(71)

3-1/16

(77.5)

3-1/16

(80.5)

(25)

1-1/4

(32)

1-1/2

(38)

1-7/8

(47)

2-3/32

(53)

1-31/32

2-5/32

2-31/32

1-5/8

(41)

(50)

(55)

2-3/4

(70)

(75)

NPT for

Union

Solder

Cup for

Valve

Weight

Sweat

1/2-in 7/8-in 1.3

3/4-in 7/8-in 2.2

1-in — 3.1

1-1/4-in —- 4.3

1-1/2-in — 6

Document No. 155-112P25

Printed in the U.S.A.

(1.95)

(2.75)

lbs. (kg)

(0.6)

(1)

(1.4)

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