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NAVIEN 30004834B Water Adjustment Valve

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Special Price $84.17 Regular Price $96.79
In stock
SKU
30004834B
The Navien 30004834B Water Adjustment Valve is used for controlling water flow in cooling and heating systems especially in Navien tankless water heater and Navien condensing boiler. This valve is efficient in controlling water temperature and pressure hence will help in reducing energy consumption. The valve works in such a way that it can control the flow of water hence the temperature and prevent the system from getting overworked. , one can expect a durable and lasting production of this ERV, thus its recommendation with any advanced HVAC systems.
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Heater, Navien Water Heater Parts
Manufacturer:
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Specifications

  • Weight: 0.85lbs
  • Dimensions: 12.7 Length: 10.16"
  • Width: 7.62"
Manufacturer Name: NAVIEN TANKLESS WATER HEATERS
Product Number: 30004834B
OEM Part Number: 30004834B
Product Description: Water Adjustment Valve
Weight:0.85lbs/385.55g

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Product Questions (2)
Customer Questions
What maintenance is required for the NAVIEN 30004834B Water Adjustment Valve?

Inspect the valve for scale buildup and leaks regularly. Proper maintenance ensures stable water pressure and efficient heating performance. Clean and replace worn seals as needed, and shut off water supply before servicing for safety.

What are common issues with the NAVIEN 30004834B Water Adjustment Valve?

  • Mineral scaling can restrict cause flow or pressure instability.
  • Internal seal wear is causing minor leaks.
  • Valve sticking or delayed response due to debris.
  • Incorrect adjustment leading to inconsistent water temperature.
  • Reduced efficiency from partial blockage.

Installation Steps

Step 1: Turn off power and shut off water supply to the tankless unit before servicing.

Step 2: Drain the system to relieve pressure and prevent water leakage during removal.

Step 3: Remove the existing old valve and inspect inlet/outlet ports for debris or scale.

Step 4: Install the new valve in the correct flow orientation, ensuring a secure fit.

Step 5: Reconnect fittings and restore water supply slowly while checking for leaks.

Step 6: Restore power and test operation, confirming stable water flow and temperature regulation.