Robertshaw 700-887 Valve
The Robertshaw 700-887 is a specialized millivolt water heater gas valve designed for high-capacity performance in commercial and residential applications. Operating as a thermopile controlled gas valve, this unit requires a 750mV signal to engage the main burner, providing a reliable ignition sequence without external power. This model features a 1/2" NPT inlet and outlet configuration with a 4.0" W.C. pressure regulator setting, specifically calibrated for natural gas systems. The low-profile design and left-hand pilot connection facilitate installation in tight burner compartments. For technicians servicing large-volume tanks, the 700 series body offers a high flow rate and an integrated energy cut-off (ECO) safety switch connection, ensuring the system shuts down if water temperatures exceed safe limits. When replacing a Robertshaw 700 series valve, verify the shank length and sensing bulb dimensions to ensure proper seating within the tank's immersion well.
Key Benefits for the Contractor- No External Power Required: Uses a 750mV thermopile generator to power the gas operator, making it ideal for locations without electrical access.
- High Capacity Output: Engineered for water heaters with high BTU requirements that standard residential valves cannot support.
- Precision Regulation: Factory-set at 4.0" W.C. to maintain consistent manifold pressure and optimal combustion efficiency.
- Serviceable Design: Field-proven 700 series diaphragm design provides long-term reliability against heavy cycling.
- Enhanced Safety: Built-in ECO terminals allow for direct integration with the tank’s thermal limit sensors.
What is the difference between a thermocouple and the thermopile used here?
This valve requires a thermopile (powerpile) because it generates a higher millivoltage (750mV) needed to pull in the larger magnetic operator found in high-capacity 700-887 units, whereas standard valves use a 30mV thermocouple.
Can this valve be converted to Liquid Propane (LP)?
This specific model is calibrated for Natural Gas. To ensure safety and proper combustion, you must use the manufacturer-specified conversion kit or select the dedicated LP version of the 700 series.
What should I check if the main burner fails to ignite?
First, verify that the thermopile is generating at least 450mV under load. If the voltage is sufficient, inspect the ECO circuit for continuity; a tripped or faulty ECO will prevent the valve from opening.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Robertshaw 700-887 Valve
The Robertshaw 700-887 is a specialized millivolt water heater gas valve designed for high-capacity performance in commercial and residential applications. Operating as a thermopile controlled gas valve, this unit requires a 750mV signal to engage the main burner, providing a reliable ignition sequence without external power. This model features a 1/2" NPT inlet and outlet configuration with a 4.0" W.C. pressure regulator setting, specifically calibrated for natural gas systems. The low-profile design and left-hand pilot connection facilitate installation in tight burner compartments. For technicians servicing large-volume tanks, the 700 series body offers a high flow rate and an integrated energy cut-off (ECO) safety switch connection, ensuring the system shuts down if water temperatures exceed safe limits. When replacing a Robertshaw 700 series valve, verify the shank length and sensing bulb dimensions to ensure proper seating within the tank's immersion well.
Key Benefits for the Contractor- No External Power Required: Uses a 750mV thermopile generator to power the gas operator, making it ideal for locations without electrical access.
- High Capacity Output: Engineered for water heaters with high BTU requirements that standard residential valves cannot support.
- Precision Regulation: Factory-set at 4.0" W.C. to maintain consistent manifold pressure and optimal combustion efficiency.
- Serviceable Design: Field-proven 700 series diaphragm design provides long-term reliability against heavy cycling.
- Enhanced Safety: Built-in ECO terminals allow for direct integration with the tank’s thermal limit sensors.
What is the difference between a thermocouple and the thermopile used here?
This valve requires a thermopile (powerpile) because it generates a higher millivoltage (750mV) needed to pull in the larger magnetic operator found in high-capacity 700-887 units, whereas standard valves use a 30mV thermocouple.
Can this valve be converted to Liquid Propane (LP)?
This specific model is calibrated for Natural Gas. To ensure safety and proper combustion, you must use the manufacturer-specified conversion kit or select the dedicated LP version of the 700 series.
What should I check if the main burner fails to ignite?
First, verify that the thermopile is generating at least 450mV under load. If the voltage is sufficient, inspect the ECO circuit for continuity; a tripped or faulty ECO will prevent the valve from opening.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Shipping & Returns
Description
The Robertshaw 700-887 is a specialized millivolt water heater gas valve designed for high-capacity performance in commercial and residential applications. Operating as a thermopile controlled gas valve, this unit requires a 750mV signal to engage the main burner, providing a reliable ignition sequence without external power. This model features a 1/2" NPT inlet and outlet configuration with a 4.0" W.C. pressure regulator setting, specifically calibrated for natural gas systems. The low-profile design and left-hand pilot connection facilitate installation in tight burner compartments. For technicians servicing large-volume tanks, the 700 series body offers a high flow rate and an integrated energy cut-off (ECO) safety switch connection, ensuring the system shuts down if water temperatures exceed safe limits. When replacing a Robertshaw 700 series valve, verify the shank length and sensing bulb dimensions to ensure proper seating within the tank's immersion well.
Key Benefits for the Contractor- No External Power Required: Uses a 750mV thermopile generator to power the gas operator, making it ideal for locations without electrical access.
- High Capacity Output: Engineered for water heaters with high BTU requirements that standard residential valves cannot support.
- Precision Regulation: Factory-set at 4.0" W.C. to maintain consistent manifold pressure and optimal combustion efficiency.
- Serviceable Design: Field-proven 700 series diaphragm design provides long-term reliability against heavy cycling.
- Enhanced Safety: Built-in ECO terminals allow for direct integration with the tank’s thermal limit sensors.
What is the difference between a thermocouple and the thermopile used here?
This valve requires a thermopile (powerpile) because it generates a higher millivoltage (750mV) needed to pull in the larger magnetic operator found in high-capacity 700-887 units, whereas standard valves use a 30mV thermocouple.
Can this valve be converted to Liquid Propane (LP)?
This specific model is calibrated for Natural Gas. To ensure safety and proper combustion, you must use the manufacturer-specified conversion kit or select the dedicated LP version of the 700 series.
What should I check if the main burner fails to ignite?
First, verify that the thermopile is generating at least 450mV under load. If the voltage is sufficient, inspect the ECO circuit for continuity; a tripped or faulty ECO will prevent the valve from opening.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
