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What are the primary features of the HONEYWELL V8043G motorized zone valve?
The HONEYWELL V8043G provides several high-performance features for supply water control:
Quiet and dependable operation via a motor-operated powerhead and swing-type ball valve.
A unique rotating ball plug that seats on a different part of its surface every time it closes.
Closes against the flow of water to ensure quiet operation.
Manual opener that moves the ball away from the seat, allowing installation without disassembly.
Manual operation capability in the event of a power failure.
Easy servicing as the entire powerhead assembly can be replaced without removing the valve body from the line.
Low power requirements, allowing up to four valves to be operated from a single 40 VA transformer.
An integral end-switch on specific models to permit the sequencing of auxiliary equipment.
A compact construction that permits fitting under the cover of most baseboards.
What are the different model types available for the HONEYWELL V8043G?
| Model Type | Operational Description |
|---|---|
| HONEYWELL V8043G | Normally closed with integral low voltage end switch |
| HONEYWELL V8043G (C Variant) | Normally closed |
| HONEYWELL V8043G (D Variant) | Normally open |
| HONEYWELL V8043G (F Variant) | Normally closed with integral line voltage end switch |
What are the close-off water pressures and capacity (Cv) ratings for the HONEYWELL V8043G?
The HONEYWELL V8043G models are rated for the following close-off pressures based on their capacity:
50 psi for 1.0 Cv
20 psi for 3.5 Cv (Standard Rating)
8 psi for 8.0 Cv
What are the power requirements and timing specifications for the HONEYWELL V8043G?
Voltage: 24 V, 50/60 Hz (cycles).
Power Consumption: 6 W nominal.
Timing to Open: 15 seconds.
Timing to Close: 4 to 5 seconds.
How should the HONEYWELL V8043G be mounted during installation?
The valve may be mounted in any position on a vertical line. On a horizontal line, the HONEYWELL V8043G must be mounted so that the powerhead is even with or above the center line of the piping. You must ensure that enough room is provided above the powerhead to remove the cover for servicing.
Mount the valve directly in the pipe or tube. It must be installed so that the arrow stamped on the side of the valve body corresponds to the flow direction.
What are the specific dimensions for the HONEYWELL V8043G motorized zone valve?
The following dimensions are provided in millimeters (inches in brackets):
| Model | A | B | C | D | F | G | H |
|---|---|---|---|---|---|---|---|
| HONEYWELL V8043G | 60 (2 3/8) | 79 (3 1/8) | 22 (7/8) | 19 (3/4) | 98 (3 7/8) | 87 (3 7/16) | 16 (5/8) |
How do the manual operation modes work for the HONEYWELL V8043G?
The actuator has three different manual settings:
AUTO Mode: The valve cycles with the thermostat and activates the auxiliary switch when the valve is fully open.
OPEN Mode: The valve is opened to allow the system to be filled, flushed, or drained. The auxiliary switch is not activated. The valve returns to AUTO mode once it is energized.
SWITCH Mode (Available on 300 psi models only): The valve is opened and the auxiliary switch is activated to run the pump. The valve returns to AUTO mode when it is energized.
What precaution must be taken when installing HONEYWELL V8043G valves with sweat fittings?
For normally closed models with sweat fittings, you must set the opener lever to the “MAN. OPEN” position before applying heat to the fittings. This protects the plug inside the valve by removing it from the seat. After installation is complete, place the manual opener back into the “AUTO” position. Additionally, do not use silver solder because of the high melting temperature it requires.
What are the part numbers for replacement powerheads for the 125 psi HONEYWELL V8043G?
| Valve Model Variation | Replacement Powerhead Part Number |
|---|---|
| Model C | P/N 40003916-011 |
| Model D | P/N 40003916-014 |
| Model G | P/N 40003916-012 |
| Model F | P/N 40003916-013 |
What are the temperature ratings for the HONEYWELL V8043G?
Liquid Temperature: 4 degrees Celsius to 93 degrees Celsius (40 degrees Fahrenheit to 200 degrees Fahrenheit).
Ambient Temperature: 4 degrees Celsius to 52 degrees Celsius (40 degrees Fahrenheit to 125 degrees Fahrenheit).
Steam: The standard valve is not recommended for steam service. Consult a representative for steam applications.
What is the recommended thermostat heater setting for the HONEYWELL V8043G?
For proper heat anticipation, the thermostat heater setting should be 0.32 Amps.
How does a normally closed HONEYWELL V8043G operate?
With the manual opener set to AUTO and the powerhead energized, the valve opens. When the powerhead is de-energized, a spring return mechanism drives the valve back to the closed position. You can also open the valve without electrical power by moving the manual opener lever over the stop and pushing slowly and firmly to the “MAN. OPEN” position. The valve will return to the automatic position when it is energized.
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