Honeywell V8043A, V8043B Installation Manual

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V4043, V4044 Valves;

CAUTION

V8043, V8044 Zone Valves

INSTALLATION INSTRUCTIONS

APPLICATION

These valves consist of an actuator motor and valve assembly for controlling the flow of hot and/or cold water. The V4043 and V8043 provide two-position, straightthrough control of supply water. The V4044 and V8044 provide two-position, diverting control of supply water. The valves are designed for use with fan coil and other units requiring quiet, compact water valves. The V8043E and F also control supply water for baseboard radiators and convectors. The V4043E and V8043J provide straight-through control of steam only. Models are available with 125 or 300 psi operating pressure.

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 the ratings given in the instructions and on the product to make sure 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

1. Disconnect power supply before connecting

wiring to prevent electrical shock of equipment damage.

2. Normally it is not necessary to remove the

powerhead from the valve body during installation. If the valve must be disassembled, be certain that it is reassembled with the water

IMPORTANT

LOCATION

Install the valve in an area with adequate clearance to:

The valve location should be in an area where the temperature does not exceed the maximum valve operating temperature as shown in Fig. 1. The maximum valve operating temperature depends on the maximum ambient temperature at the valve location and the maximum fluid temperature. Using the graph in Fig. 1, the maximum valve operating temperature can be found as follows:

1. Measure ambient temperature at valve and locate

2. Draw a line from this ambient temperature, parallel

3. Draw a line from this point down to the fluid temp-

flow in the direction of the arrow. Reversal of the powerhead will result in damage to the gear train.

3. On 24V systems, never jumper the valve coil terminals even temporarily. This may burn out the heat anticipator in the thermostat.

Use this valve in hydronic heating systems which do not contain dissolved oxygen in the system water. The dissolved oxygen, which is found in systems that have a frequent source of makeup water, causes the rubber plug inside the valve to deteriorate and eventually fail.

— Move the manual opening lever on the side of the

powerhead. — Remove the powerhead cover. — Wire the powerhead. — Replace the powerhead motor.

this temperature on the ambient temperature scale on the graph.

with the fluid temperature scale, to the maximum fluid temperature line.

erature scale to find maximum operating temperature. (Note the example, shown by the dashed line in Fig. 1).

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V4043, V4044 VALVES; V8043, V8044 ZONE VALVES

(21)

MAXIMUM AMBIENT TEMPERATURE LINE

EXAMPLE: 150°F (66°C) IS THE AMBIENT TEMPERATURE AT THE VALVE, 235F (113C) IS MAXIMUM FLUID TEMPERATURE.

100

(32)

(38)

(27)

130

120

110

(54)

(49)

(43)

140

(60)

210 (99)

200 (93)

190 (88)

180 (82)

170 (77)

160 (71)

150 (66)

140 (60)

AMBIENT TEMPERATURE

130 (54)

120 (49)

110 (43)

100 (38)

(32)

(27)

DEGREES F

DEGREES C

Fig. 1. Maximum temperature characteristics of valves.

MOUNTING

The valve can be mounted in any position on a vertical line. If the valve is mounted horizontally; the powerhead must be even with or above the center line of the piping. Make sure that enough room is provided above the powerhead to remove the cover for servicing.

MAXIMUM FLUID TEMPERATURE LINE

150

160

170

180

190

200

210

220

230

(66)

(71)

(77)

(82)

(88)

(93)

(99)

(104)

FLUID TEMPERATURE

when the valve is de-energized. Refer to the equipment manufacturer’s instructions to determine which port (A or B) should be connected to the coil bypass.

(110)

240

(116)

250

(121)

M8164

HORIZONTAL PIPING

VERTICAL PIPING

M10162

Fig. 2. Mounting positions.

Mount the valve directly in the tube or pipe. Make sure that the flow through the valve is in the direction indicated by the arrow stamped on the valve body.

On diverting valves, the three fittings or ports are labeled on the bottom of the valve body casting. See Fig. 3. Port AB is the inlet port and is open at all times. Port A is closed when the valve is de-energized; port B is open

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Fig. 3. Inlet and outlet ports on straight-through and

diverting valves.

FLARE FITTING MODELS

Use new, properly reamed pipe, free from chips. The valve body is threaded for standard 5/8 in. OD copper, 45 degree SAE flare fitting nuts. These nuts are not furnished with the valve and must be obtained separately.

SWEAT COPPER MODELS

1. Use new, properly reamed pipe, free from dents or

corrosion.

2. Place the valve onto the pipe. Set the manual opening lever to MAN. OPEN position before applying heat. This protects the plug inside the valve by removing it from the seat.

V4043, V4044 VALVES; V8043, V8044 ZONE VALVES

3. IMPORTANT: Take care not to burn the plastic portion of the composite adapter plate when soldering.

4. Sweat the joints, keeping the outer surface free from solder. DO NOT use silver solder because of the high melting temperature required.

To Install Replacement Powerhead

SYSTEMS WITH OLD STYLE VALVE BODIES (SERIES 1-5)

To install a replacement powerhead in a system with an old style body (series 1-5), the valve body must be converted to accept the new powerhead using Part No. 40003918 Conversion Kit. The kit includes a metal plate with a driveshaft and rubber plug, O-ring, and four screws.

IMPORTANT

Converting the valve body for use with the new powerhead does not require removal of the valve body from the pipeline. However, it is necessary to drain the water from the system before beginning the conversion.

MAN

OPEN

AUTO

MANUAL OPENING

LEVER

1. Disconnect the power supply before connecting the wiring to prevent electrical shock or equipment damage.

2. Disconnect the leadwires to the powerhead at the terminal block or conduit connection. Remove the conduit or cable connector if fitted. Label each wire for rewiring later.

3. Drain the water from the system.

4. Remove the old powerhead from the valve body

(Fig. 4) a. Place the manual opening lever (normally

closed models only) on the old powerhead in

the MAN. OPEN position (see Fig. 4A). b. Remove the cover (Fig. 4B). c. With the cover off, remove the four screws

securing the powerhead to the valve body. d. Lift the powerhead off the valve body (Fig. 4C). e. Remove the O-ring from the top of the valve

body.

V8043F 1051

24V 50/60 CY

.32 AMP @ 60 CY

MADE IN CANADA

Fig. 4. Remove old powerhead from systems using old style valve bodies

5. Install 40003918 Conversion Kit (Fig. 5)

a. Insert the new O-ring in the valve body. b. Place metal plate with the rubber plug on top of

the valve body. Make sure the guide pins on the underside of the metal plate fit into the recesses on the valve body.

c. Secure the metal plate to the valve body with

the four screws (two sets) provided. One set of screws has heads with recessed threads to

COVER RETAINING SCREW

V8043F 1051

24V 50/60 CY

.32 AMP @ 60 CY

MADE IN CANADA

insert screws for mounting the new powerhead;

insert this set into the larger screw openings.

The other set has domed heads; insert this set

into the smaller screw openings. Each set of

screws must be inserted in opposite corners of

the metal plate so the screws sit flat on the

plate. Make sure the guide pins on the plate fit

into the recesses on the valve body.

3 95-6983—11

M10174

V4043, V4044 VALVES; V8043, V8044 ZONE VALVES

V8043F 1036

24V 50/60 CY

.32 AMP @ 60 CY

MADE IN CANADA

SECURING SCREW (2)

REMOVABLE HEAD

SHAFT

REMOVABLE HEAD VALVE BODY ASSEMBLY

M10173

HEX-NUT SCREW WITH DOMED HEADS (2)

HEX-NUT SCREWS WITH RECESSED THREADS AND SHOULDER SHANK (2)

BRASS ADAPTER PLATE

O RING

LOCATING RECESSES (3)

c. Secure the powerhead to the valve body with

the two screws provided. d. If fitted, reconnect the conduit or cable. Recon-

nect the leadwires at the powerhead. e. Replace the powerhead cover.

7. Turn on power.

VALVE BODY

Fig. 5a. Install 40003918 conversion kit with brass

VALVE BODY

Fig. 5b. Install conversion kit with composite (steel &

6. Install new powerhead (see Fig. 6)

a. Place the manual opening lever (normally

closed models only) on the new powerhead in the MAN. OPEN position.

b. Fit the powerhead onto the valve body, ensuring

that the shaft seats correctly. The powerhead should be aligned so that the manual opening lever or slot for lever is at the port A end of the valve body.

adapter plate.

HEX-NUT SCREW WITH DOMED HEADS (2)

O RING

LOCATING RECESSES (3)

plastic) adapter plate.

M32317

HEX-NUT SCREWS WITH RECESSED THREADS AND SHOULDER SHANK (2)

STEEL PLATE

PLASTIC PLATE

M32316

Fig. 6. Install new powerhead.

SYSTEMS WITH NEW STYLE VALVE BODIES (SERIES 6)

IMPORTANT

On a new style valve body that has been converted to accept the new powerhead, it is not necessary to drain the system if the valve body remains in the pipeline.

1. Disconnect the power supply before connecting the wiring to prevent electrical shock or equipment damage.

2. Disconnect the leadwires to the powerhead at the terminal block or conduit connection. Remove the conduit or cable connector, if fitted. Label each wire for rewiring later.

3. Remove the old powerhead (see Fig. 7): a. Place the manual opening lever (normally

closed models only) on the old powerhead in the MAN. OPEN position (Fig. 7A).

b. Remove the screw securing the cover to the

powerhead (Fig. 7B). c. Lift off the cover from the powerhead. d. Remove the two screws securing the power-

head to the valve body (Fig. 6). e. Lift the powerhead off the valve body.

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