FAQ's Trouble Shooting Installation and Operation

 

AutoFlow Automatic Balancing

Problem: Low Water Flow

Possible Cause

  1. Strainer Clogged
  2. Wrong Location
  3. Low System Pressure
  4. Balance Valve Plugged
  5. ATC Valve Port Closed or Wrong Cv
  6. System Valve is Partially Open

Possible Solution

  1. Back-flush or manually clean the coil strainer.
  2. Make sure the valve is in the proper location with the correct GPM.
  3. If possible, check the pressure at the hook-up supply and return valves. The drop through the coil and ATC valve may be too large for the available head.
  4. The AutoFlow valve may have debris. Remove cartridge, clean and replace.
  5. Make sure the ATC is wide open and has proper Cv.
  6. Open all manual system valves.

Problem: High Water Flow

Possible Cause

  1. Wrong Location
  2. System Pressure Too High
  3. AutoFlow Valve Backward

Possible Solution

  1. Make sure the valve is in the proper location with the correct GPM.
  2. Check the differential pressure across the AutoFlow valve. If larger than 32 psi, close the return-side ball valve until the difference is less than 32 psi. The spring range on the cartridge could be changed to 5-60 psi which will also solve the problem.
  3. Check the flow arrow and reverse valve if necessary.

Problem: Noise or Vibration

Possible Cause

  1. AutoFlow Valve Clicking or Noisy

Possible Solution

  • Check the Delta P across the AutoFlow valve. If at or near the maximum, it may be necessary to replace the cartridge with a different spring range
  • Make sure the air is purged from the system. Air can cause a clicking noise. WS valves require air purging on each side of the mid-plate.
  • Two AutoFlow valves close coupled in series can cause pulsing.

FlowSet Manual Balancing

Problem: D.P. Gauge Reading Zone or Very Low

Possible Cause

  1. Valves Closed on Hoses or Gauge
  2. Zeroing Manifold Valve is Open
  3. High and Low Impulse Hoses Reversed
  4. Impulse Ports Clogged
  5. No Water Flow
  6. Defective D.P. Meter
  7. Beta Ration Too High or Wrong Model

Possible Solution

  1. Open all high & low impulse line valves
  2. Close by-pass or zero valve.
  3. Switch hose.
  4. Clean out P/T port or pressure ports.
  5. Make sure pipeline valves are open.
  6. Use another meter or verify with the difference in gauge pressure readings on each port.
  7. Verify flow using D.P. across the wide-open ATC valve. Also check tag & location numbers.

Problem: D.P Gauge Readings Too High

Possible Cause

  1. Circuit Unbalanced
  2. Valve is Closed on the Low-Pressure Impulse Line
  3. Low (Downstream) Pressure or P/T Port Clogged
  4. Wrong Product Placed in Circuit

Possible Solution

  1. Reduce flow by slowly closing ball or butterfly valve in the circuit.
  2. Open all impulse lines.
  3. Clean ports.
  4. Check model, tag and location number.

Coil Hook-Up

Problem: Low Water Flow

Possible Cause

  1. Strainer Clogged
  2. Wrong Location
  3. Low System Pressure
  4. Balance Valve is Plugged

Possible Solution

  1. Back-flush or manually clean the coil strainer.
  2. Make sure the hose kit is in the proper location with the correct GPM.
  3. If possible, check the pressure at the hose kit supply and return valves. The drop through the coil and hose kit may be too large for the available head. The total pressure drop through the hose kit can be determined with catalog F016.
  4. The AutoFlow may have debris. Remove cartridge, clean and replace.

VersaFlow Hose Kit

Problem: Low Water Flow

Possible Cause

  1. Strainer Clogged
  2. Wrong Location
  3. Low System Pressure
  4. Balance Valve is Plugged

Possible Solution

  1. Back-flush or manually clean the coil strainer.
  2. Make sure the hose kit is in the proper location with the correct GPM.
  3. If possible, check the pressure at the hose kit supply and return valves. The drop through the coil and hose kit may be too large for the available head. The total pressure drop through the hose kit can be determined with catalog F016.
  4. The AutoFlow may have debris. Remove cartridge, clean and replace.

Problem: High Water Flow

Possible Cause

  1. Wrong Location
  2. Improper Balance of Manual Valve
  3. System Pressure is Too High
  4. AutoFlow Valve is Backward

Possible Solution

  1. Make sure the hose kit is in the proper location with the correct GPM.
  2. Measure the flow through the Accusetter Ventruri and re-balance the coil.
  3. Check the differential pressure across the AutoFlow valve. If large than 32 psi, close the return side ball valve until the difference is less than 32 psi. The spring range on the cartridge could be changed to 5 - 60 which will also solve the problem.
  4. Check the arrow and reverse the valve if necessary.

Problem: Noise or Vibration

Possible Cause

  1. Solenoid Shut-Off Valve is Causing "Water Hammer"
  2. Water Noise
  3. AutoFlow Valve is Clicking and Noisy

Possible Solution

  1. The solenoid valve may be closing too quickly, causing water hammer. Use a slower acting valve.
  2. Check the hose kit size versus the ASHARE recommended sizes in Catalog F016. Use a larger size if necessary.
  3. Check the Delta P across the regulator and it may be necessary to replace the cartridge with a different spring range. Make sure the air is purged from the system. Air can cause a clicking noise.