MOUNTING
The valve can be mounted in any position on a vertical line. See Fig. 2. If the valve is mounted horizontally; the actuator must be even with or above the center line of the piping. Make sure to leave enough room above the actuator to remove the cover for servicing.
Mount the valve directly in the tube or pipe after the coil. Make sure that the flow through the valve is in the direction indicated by the arrow stamped on the valve body.
thermostat or controller connected to the valve so that the valve runs through its cycle. Make sure the valve runs smoothly and positively from closed to open to closed again. (See Operation and Checkout Sections.)
TO REMOVE THE ACTUATOR FROM THE VALVE BODY (See Fig. 3)
NOTE!
It is not necessary to drain the hydronic system if the valve body assembly remains in the pipe line.
1. Switch power supply OFF. Disconnect |
electrical leads carefully, noting the |
position and colour of each lead. |
2. Place the manual lever in the MAN. |
OPEN position. |
4.Line up motor coupling to the parallel flat surfaces in
5.Snap actuator onto body by pressing down.
6.The manual lever may be released manually, but it is also automatically released when the valve is operated electrically.
Double-D
Shaft
Notch
|
| THERMOSTAT |
TO |
| (TYPICALLY T87F) |
LINE |
|
|
|
| TO CIRCULATOR |
| YELLOW | OR ANOTHER VALVE |
|
| |
| LEADS |
|
|
| RED LEADS |
| MOTOR |
|
|
| AUXILIARY |
|
| SWITCH |
M5953
Fig. 6 - Typical wiring for V8043E, V8044E.
HORIZONTIAL
PIPING
VERTICAL
PIPING
M10162
3. Remove actuator by fully depressing |
spring release button and lift it straight |
off of the body. |
Fig. 4 - Shaft Position
Actuator
Coupling
R
THERMOSTAT (TYPICALLY T87F)
END SWITCH
TO CIRCULATOR OR ANOTHER VALVE
Fig. 2 - Mounting Positions
Sweat Copper Models
1. | Use new, properly reamed pipe, free |
| from dents or corrosion. |
2. | Place the valve on the pipe. Set the |
| manual opening lever to MAN. OPEN |
| position before applying heat. This |
| 1. PLACE MANUAL |
AUTO | LEVER IN OPEN |
OPEN | |
| POSITION |
2. DEPRESS |
|
LOCKING |
|
BUTTON | 3. LIFT ACTUATOR |
| STRAIGHT UP |
Notch Tab
Notch
TH TR TH TR
1 |
L1 |
(HOT) |
L2 |
24V TRANSFORMER
protects the plug inside the valve by |
removing it from the seat. |
3. Sweat the joints, keeping the outer |
surface free from solder. DO NOT use |
silver solder because of the high |
melting temperature required. |
TO INSTALL A COMPLETE VALVE (V8043):
1.Disconnect power supply before connecting wiring to prevent electrical shock or equipment damage.
2.Install valve into pipe on the return side of the coil. (See Mounting Section.)
3.Make wiring connections to valve. (Refer to Wiring section for proper instructions.)
4.Inspect the valve installation to ensure that all connections and adjustments have been correctly made. Adjust the
Fig. 3 - Removing Actuator from Valve Body
TO INSTALL REPLACEMENT ACTUATOR ON THE VALVE BODY
1.Align the parallel flat surfaces in
2.Wiring connections may be made either before or after actuator installed on valve body.
3.Place the manual lever on the actuator in the MAN. OPEN position.
Fig. 5 - Installing Actuator
WIRING
Disconnect the power supply before connecting wiring to prevent electrical shock or equipment damage.
All wiring must comply with local codes and ordinances. Connections to the individual valves are shown in Fig. 6 and 7. See Fig. 8 through 14 for typical hookups.
If replacing a Taco, Dole, Flair or White Rodgers
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
M5952
Fig. 7 - Typical wiring for V8043F.
T822 |
| T822 |
| T822 |
|
|
|
|
|
L1 |
(HOT) |
L2 |
1
2 | 2 | 2 |
V8043A | V8043A | V8043A |
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 CONNECT V8043A BLACK LEADWIRE TO THERMOSTAT. | M10168 |
Fig. 8 - T822 Thermostat, V8043A valve hookup.
3 | 4 |