Honeywell VB6 Series User manual

VB6 SERIES 6-WAY CONTROL BALL VALVES

AND ACTUATORS

INSTALLATION INSTRUCTIONS

® U.S. Registered Trademark

31-00380M-02Printed in USA

Application

The VB6 6-Way Control Ball Valves regulates hot

and chilled water with glycol solutions up to 60%

in heating, ventilating, and air conditioning

(HVAC) systems.

These valves ship with a direct coupled actuator

factory installed for modulating control. The valve

is designed to be used exclusively with

MN7510A2001 actuator.

Application Notes

IMPORTANT:



Valve sizing is important for correct system

operation. Undersized valves do not have suf-

ficient capacity at maximum load. Oversized

valves do not have sufficient authority over

the load in modulating applications.

Oversized valves can cause excessive cycling

and the seat and ball can be damaged because

of the restricted opening.

Proper Use

These valves are intended for use in chilled water

and hot water closed loop applications only, with

a media temperature range of 0 ºF to +212 ºF (18

ºC to 100 ºC), and static pressures up to 600 psi.

These valves are to be operated with the Honey-

well MN7510A2001 actuator only.

Water should be properly filtered, treated and

conditioned for good operating performance,

according to local conditions, and recommenda-

tions of the boiler or chiller manufacturers. The

installation of strainers and filters is recom-

mended.

IMPORTANT:



The presence of excessive iron oxide (red rust)

in the system voids the valve warranty.

Required Operating Torque

The VB6 series 6-way control ball valves are to be

operated with the Honeywell MN7510A2001

actuator only

These valves use a patented seat design that

reduces the torque needed. The nominal required

operating torque is 88 lb-in.

Table 1. Close off Pressure

Flow Characteristic

The VB6 series 6-way Ball Valves have true equal

percentage flow characteristic, thanks to preci-

sion machined metal discs in front of the ball.

Valve Size Close off Pressure

1/2 inch and 3/4 inch 200 psi (1380 kPa)

31-00380M-02

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

31-00380M-02 Printed in USA 2

Valve Sizing

Typical pressure drop across a control valve is in the range of 3 to 5 psid, however the best control is

achieved when the valve pressure drop is as close to the coil pressure drop as possible.

The 6-Way valve will have two CV calculations, one each for Sequence 1 and Sequence 2, which will

feature different flow rates most of the time.

INSTALLATION

When installing this product...

1. Read these instructions carefully. Failure to follow them could damage the product or cause a haz-

ardous condition.

2. Check ratings given in instructions and on the product to ensure the product is suitable for your

application.

3. Installer must be a trained, experienced service technician.

4. After installation is complete, check out product operation as provided in these instructions.

Preparation

Caution: Equipment Damage Hazard

Foreign particles like dirt and metal chips can damage the ball seals.

For trouble-free operation of the product, good installation practice must include initial system

flushing, and chemical water treatment. Clean the lines upstream of particles larger than 1/16

inch diameter (welding slag, pipe scale, sand and other suspended particulate). Use of a 50

micron (or finer) system side stream filter is suggested. Remove all filters before flushing.

Do not use boiler additives, solder flux and wetted materials which are petroleum based or

contain mineral oil, hydrocarbons, or ethylene glycol acetate. Compounds which can be used,

with minimum 40% water dilution, are diethylene glycol, ethylene glycol, and propylene glycol

(antifreeze solutions).

If installing these valves in an addition to, or retrofitting an existing building, do not assume that

the fluid in the existing piping meets these criteria.

CALIFORNIA PROPOSITION 65 WARNING

This product can expose you to chemicals including lead, which is known to the State of

California to cause cancer, birth defects, or other reproductive harm. For more information,

go to www.P65Warnings.ca.gov.

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

3 Printed in USA 31-00380M-02

Mechanical Installation of the

Valve

IMPORTANT:

Hold valve with pipe wrench by hexagonal fit-

ting ONLY. Do NOT handle the Valve body with

the pipe wrench; product damage may result.

Refer Dimension section on page 9 for more

details on dimensions of Valve body and actuator.

1. Clean the lines upstream of particles larger

than 1/16 in. diameter (welding slag, pipe

scale and other contaminants) to properly

flush the system.

2. Proceed with installation once the system

specifics (expansion/contraction of the

system and its medium as well as operating

pressures) are within tolerances.

3. Eliminate air or air-bubbles from system.

4. Use the markings on the valve bodies to

familiarize yourself with the A, B, and AB

piping connections.

5. Connect the AB-ports of the valve to the

supply and return pipes of the coil.

6. Connect the A-ports and B-ports as per the

flow sequences. Refer to below figure.

Figure 1. Typical flow directions for Sequence 1 and 2.

IMPORTANT:

Strictly follow flow direction and port connec-

tions as per flow sequences.

7. Clear threads on both valve and piping of any

debris. Honeywell recommends Permabond

A1044 or equivalent thread or pipe sealant.

While using Teflon tape, it is recommended to

use 4-6 rounds of tape applied tightly in

clockwise rotation. When using hemp as pipe

sealant, ensure no strands are left in the valve

or piping.

8. Valves must be installed avoiding

unnecessary pull or twist in the valve housing.

9. Use the Bracket as shown below figure if non-

flexible pipes are used in piping to keep pipes

firm and parallel.

Figure 2. Assembly of Bracket for non-flexible piping

Valve Insulation

To avoid water condensation dripping from the 6-

way valve, insulate around the pipe connections

and the structural box, but do not cover the gear

box in insulation.

Gear box

Insulation to structural

base box

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

31-00380M-02 Printed in USA 4

Mechanical Installation for

Actuator

Mounting Position

1. Choose a mounting position permitting easy

access to cables and controls.

2. Make sure that the actuator stem is in

horizontal to upright vertical position, but

never in below horizontal position.

Condensate from Valve body may flow into

the Gear box or actuator, causing damage.

Figure 3. Actuator mounting

NOTE:NOTE:

Further, in order to guarantee IP54, only

original Honeywell grommets may be used.

Preparing Actuator for mounting

1. Use a suitable plier to hold the clip of the Uni-

versal shaft adapter.

2. Pull out the Clip as shown in below figure to

remove Universal shaft adapter. Now, the

actuator is ready to assemble on 6-way

control ball valve.

Assembling the actuator on Valve body

1. Make sure that the Gear box is in zero posi-

tion as shown in below figure. Use the appro-

priate wrench to adjust (if necessary).

Figure 4. Zero position of Gear box on Valve body

2. Slide the actuator into Actuator pedestal as

shown in below figure. Do not use additional

tools or pressure as the Actuator pedestal is

designed to press fit with the MN7510A2001

actuator.

Figure 5. Assembly of Actuator pedestal

Caution: To avoid personal injury

(electrical shock) and to prevent

equipment damage, before

installation, you must remove power.

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

5 Printed in USA 31-00380M-02

3. Insert the Stem adapter into the Actuator

output hub (Stem adapter and Output hub

are keyed so they can be assembled in one

way only).

Figure 6. Assembly of Stem adapter

IMPORTANT:



To prevent equipment damage, you must

remove power or set the function selection

switch to the “Service/Off” position before

manual adjustment.

4. Press and hold the Declutch button to permit

rotation of the Stem adapter to any position.

Rotate the Stem adapter, so that the notch on

the Stem adapter points as shown in figure

below.

Figure 7. Adjusting the Stem adapter to zero position

5. Slide the Brass sleeve over the end of the

Stem adapter as shown in figure below.

Figure 8. Assembly of Brass sleeve

6. Place the actuator assembly on the Valve

body as shown in below figure.

Figure 9. Assembly on the Valve body.

IMPORTANT:



The only possible way that the valve stem and

actuator Stem adapter can be assembled

together is with both in the Zero position.

7. Insert the Screw (M4) and Washer (supplied

with package) into the linkage shaft and

tighten the screw (1.8 -2.5 Nm) to firmly

assemble the actuator with Valve body. See

figure below.

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

31-00380M-02 Printed in USA 6

Figure 10. Mounting of Screw in actuator assembly

8. Hold the handle in the vertical position (as

shown below) and insert the handle on the

linkage Stem adapter knob by pressing it

downwards (press fit) to assemble it firmly.

Figure 11. Mounting of Handle on the actuator

Manual Adjustment

IMPORTANT:



To prevent equipment damage, you must

remove power or set the function selection

switch to the “Service/Off” position before

manual adjustment.

After removing power or setting the function

selection switch to the “Service/Off” position, the

Gear box can be disengaged using the Declutch

button, permitting the handle to be manually

rotated to any position.

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

7 Printed in USA 31-00380M-02

Electrical Installation

The most important part of the electrical installa-

tion is the power supply for the actuator.

1. Unscrew the actuator wiring cover in order to

access to the terminal block(s) as shown

below.

2. Perform the wiring of actuator using Figure

13 to Figure 15 as per the required

application.

3. If necessary, use the appropriate electrical

cable conduits and cable gland to properly

secure the actuator wiring.

4. Replace the wiring cover once done.

Actuator Run modes

The function selection switch (see Figure 16) can

be used to place the actuator into any one of two

different modes:

• Modulating run mode

• Floating/2-position run mode

• Service/Off mode.

Caution: To avoid personal injury

(electrical shock) and to prevent

equipment damage, before

installation, you must remove power.

Figure 12. Removable Access Cover

Figure 13. MN7510 (Modulating Mode)

Figure 14. MN7510 (Floating Mode)

Figure 15. MN7510 (2-Position Mode).

Figure 16. Function Selection Switch

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

31-00380M-02 Printed in USA 8

Modulating Run Mode

The Modulating Run mode can be used in four different types of control settings:

• 2…10 Vdc

• 0…10 Vdc

• 10…0 Vdc

• 10…2 Vdc

If the function selection switch has been set to one of the four modulating control settings - and if the

actuator is wired correspondingly (see Figure 13) - then as soon as operating power is applied, the

shaft adapter will run first completely counterclockwise and then completely clockwise, after which it

will run according to the control signals applied.

Use the above flow curve with given actuator control signal settings to configure 6-way valve for

Sequence 1 (cooling), Sequence (2), and Off-position. Note that in Figure 13 it is shown how to over-

ride the actuator with a switch on wiring terminal 4 to go to the 50% position. This may also be used to

rotate the valve to the zero (closed) position.

Figure 17. Flow curve with control signal settings

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

9 Printed in USA 31-00380M-02

IMPORTANT:



The zero (closed) position of the valve can be

achieved with control signal as shown in the

below table.

Floating/2-Position Run Mode

(Not recommended)

Using the MN7510A2001 actuator in floating /

2-position mode is not recommended with 6-way

valves. Both Sequence 1 and Sequence 2 are

closed at the actuator mid-stroke, 45 degree

actuator rotation. It must be possible to com-

mand the actuator to position itself in the mid-

stroke position, which is difficult to do with preci-

sion in floating mode, and impossible when float-

ing mode is used for 2-position control.

If it is desired to use the 6-way valve for simple

seasonal changeover service, it is best if three

distinct positions can be achieved:

1. Fully clockwise actuator rotation for

Sequence 2 to be fully open.

2. Fully counterclockwise actuator rotation for

Sequence 1 to be fully open.

3. Exactly mid-stroke, 45-degree actuator

rotation, for Sequence 1 and 2 both being

closed.

This scheme can only be achieved with the actu-

ator selector switch set to one of the four modu-

lating modes, using 0-10 Vdc, 2-10 Vdc, 10-0

Vdc, or 10-2 Vdc to achieve full clockwise, full

counterclockwise, and precisely mid-stroke actu-

ator positions. If desired, the actuator analog

feedback can be used to verify actual position.

If only step 1 and 2 above are desired, and there

is no need for step 3 to rotate the actuator to

exactly 45 degrees to turn both Sequence 1 and

2 completely off, the floating mode may be used

for 3-wire 2-position control.

Power-Off Behavior

If power is removed, the shaft adapter remains in

position.

Service/Off Mode

If the function selection switch is set to the “Ser-

vice/Off” position, then all rotary movement is

canceled, and all control signals are ignored,

allowing the actuator to be manually operated

safely. Press and hold the De-clutch button and

use the handle to operate the actuator to

Sequence 1, 2, or, Off positions.

Overriding

The MN7510A2001 can be overridden to the

50% position by applying a 24 V signal to termi-

nal 4 (see Figure 13.) With 24 V signal applied the

actuator will ignore the control signal at terminal

3 and instead drive to the 50% position closing

both Sequence 1 and Sequence 2.

Feedback

If correspondingly wired via terminal 5 (see Fig-

ure 13 to Figure 15), the actuator provides a

feedback signal proportional to the actual posi-

tion of the shaft adapter.

Valve closed command (45

degree actuator rotation)

Actuator Control

Signal Setting

Controller

Output

0-10 Vdc 5Vdc

2-10 Vdc 6 Vdc

10-0 Vdc 5Vdc

10-2 Vdc 6 Vdc

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS

31-00380M-02 Printed in USA 10

Flow Rate as per Valve Pressure Difference (ΔP)

*For fully open valve position.

For example:

The VB6A003+012+AL valve is with CV 0.30 (for sequence 1) and CV is 1.20 (for sequence 2).

If we consider the valve pressure difference (ΔP) 4 psid then as per above table, the Flow rate for

sequence 1 will be 0.60 gpm and for sequence 2 will be 2.40 gpm.

Valve

Size CV Value Flow Rate (in gpm) for below Valve ΔP (in psid)

(inch) For Sequence

1or 2* 0.50 0.75 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00

1/2 inch

CV 0.30 0.21 0.26 0.30 0.42 0.52 0.60 0.67 0.73 0.79 0.85 0.90 0.95

CV 0.46 0.33 0.40 0.46 0.65 0.80 0.92 1.03 1.13 1.22 1.30 1.38 1.45

CV 0.80 0.57 0.69 0.80 1.13 1.39 1.60 1.79 1.96 2.12 2.26 2.40 2.53

CV1.20 0.85 1.04 1.20 1.70 2.08 2.40 2.68 2.94 3.17 3.39 3.60 3.79

CV 1.90 1.34 1.65 1.90 2.69 3.29 3.80 4.25 4.65 5.03 5.37 5.70 6.01

CV 3.00 2.12 2.60 3.00 4.24 5.20 6.00 6.71 7.35 7.94 8.49 9.00 9.49

CV 4.70 3.32 4.07 4.70 6.65 8.14 9.40 10.51 11.51 12.44 13.29 14.10 14.86

CV 7.40 5.23 6.41 7.40 10.47 12.82 14.80 16.55 18.13 19.58 20.93 22.20 23.40

3/4 inch

CV 4.70 3.32 4.07 4.70 6.65 8.14 9.40 10.51 11.51 12.44 13.29 14.10 14.86

CV 7.40 5.23 6.41 7.40 10.47 12.82 14.80 16.55 18.13 19.58 20.93 22.20 23.40

CV 10.00 7.07 8.66 10.00 14.14 17.32 20.00 22.36 24.49 26.46 28.28 30.00 31.62

CV 14.00 9.90 12.12 14.00 19.80 24.25 28.00 31.30 34.29 37.04 39.60 42.00 44.27

Table 3. Flow rate as per Valve Pressure difference

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