Honeywell VB6 INSTALLATION INSTRUCTIONS

VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS

INSTALLATION INSTRUCTIONS

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 sufficient 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 600psi. These valves are NOT suitable for oil, combustible gases, or steam.

These valves are to be operated with the Honeywell MN7510A2001 actuator only.

Water should be properly filtered, treated and conditioned for good operating performance, according to local conditions, and recommendations of the boiler or chiller manufacturers. The installation of strainers and filters is recommended.

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

Valve Size

Close-off Pressure Rating

1/2 inch

200 psi (1380 kPa)

Flow Characteristic

The VB6 series 6-way Ball Valves have true equal percentage flow characteristic, thanks to precision machined metal discs in front of the ball.

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. A 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.

VB6 series 6-Way Control Ball Valves and Actuators - Installation Instructions

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INSTALLATION

When installing this product...

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

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Mechanical Installation of the Valve

IMPORTANT: Hold valve with pipe wrench by hexagonal fitting 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 connections 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. When 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.

Mechanical Installation for Actuator

CAUTION

To avoid personal injury (electrical shock) and to prevent equipment damage, before installation, you must remove power.

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.

VB6 series 6-Way Control Ball Valves and Actuators - Installation Instructions

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Figure 3. Actuator mounting

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 Universal

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 position as

shown in below figure. Use the appropriate 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

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

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