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22

1290447-W2-B

Fault Diagnosis

Symptom

Cause/Action

1.

 Only Hot or Cold Water From 

Outlet

a.

  Inlet  supplied  reversed  (i.e.  hot  supply  to  cold  inlet)  can  be  diagnosed  by 

isolating  the  inlet  supplies  and  removing  the  valve  cartridge.  With  cartridge 

removed, turn the water on at each supply individually and at a very low flow rate 

(water will run out of the front of the valve body). Identify which inlet is the hot 

supply and which is the cold supply. Re-install the cartridge matching the raised 

H and C on the cartridge body to the inlets as identified.

b. 

No hot water reaching mixing valve. Check

c.

 Check strainers and inlet fittings for blockage.

d.

 Refer to symptom 5 below.

e.

 Installation conditions continuously outside operating parameters

f.

  Normal  function  of  mixing  valve:  indicates  hot  water  inlet  supply  failure/

interruption.

2.

  Fluctuating  or  Reduced  Flow 

Rate

Normal function of mixing valve when operating conditions are unsatisfactory.

a.

 Check strainers and inlet/outlet fittings for flow restriction.

b.

 Ensure that minimum flow rate is sufficient for supply conditions.

c.

 Ensure that dynamic inlet pressures are nominally balanced

d. 

Ensure that inlet temperature differentials are sufficient.

e.

  (Subject  to  rectification  of  supply  conditions).  Check  the  thermostatic 

performance; renew cartridge assembly if necessary.

f.

  Normal  function  of  mixing  valve:  indicates  hot  water  inlet  supply  failure/

interruption.

3.

  No  Flow  From  Mixing  Valve 

Outlet 

Check that inlet flow controls are fully open.

a.

 Check strainers and inlet/outlet fittings for blockage.

b.

 Cold supply failure; thermostat holding correct shutdown function: rectify, and 

return to 

2e above

.

4.

 Blend Temperature Drift

Indicates operating conditions changed.

a.

 Refer to symptom 

2 above

.

b.

 Hot supply temperature fluctuation (rectify and refer to Commissioning).

c.

 Supply pressure fluctuation (rectify and refer to Installation).

5.

  Hot  Water  in  Cold  Supply  or 

Vice-Versa

Indicates check valves require maintenance (refer to Maintenance).

6.

 Water Leaking form Valve Body Seal (s) worn or damaged.

a.

 Obtain seal pack, renew all seals.

b.

 (If leak persists from around temperature spindle). Renew cartridge assembly.

7.

 Cold Water does Not Flow After 

Hot Supply Failure

a.

 Incorrect valve model installed. Check and rectify.

b. 

Incorrect internal cartridge installed. Check identification code and rectify

c.

 Check strainers and inlet/outlet fittings for blockage

d. 

Cold supply failure.

8.

  Hot  Water  continues  to  Flow 

After Cold Supply Failure

a. 

Incorrect Valve commissioning. Validate the Commissioning.

b.

 Insufficient temperature differential see validate commissioning.

Summary of Contents for 320 F

Page 1: ...1 1290447 W2 B 32E E Installer This manual is the property of the customer and must be retained with the product for maintenence and operational purposes Product Manual...

Page 2: ...2 1290447 W2 B...

Page 3: ...3 1290447 W2 B X 1 q X 1 q X 1 q X 1 q 32E X 3 q X 2 q X 1 q X 1 q X 2 q...

Page 4: ...4 1290447 W2 B X 1 q X 1 q X 1 q X 3 q X 1 q 32E BSP...

Page 5: ...5 1290447 W2 B 320 F X 1 q X 1 q X 1 q X 3 q X 1 q...

Page 6: ...6 1290447 W2 B 32E RADA 320 C 185 mm 49 mm 49 mm 59 mm 127 5 mm 61 mm 41 5 mm 256 mm 314 5 mm 83 5 mm RADA 320 OEM 137 mm 83 5 mm 185 mm 49 mm 49 mm 117 mm 32E BSP...

Page 7: ...7 1290447 W2 B RADA 320 CF 118 5 mm 185 mm 49 mm 49 mm 108 mm 83 5 mm 320 F...

Page 8: ...nd below hypothermia becomes a concern Consulting a safety health advisor will be a helpful aid in the determination of the best temperature parameters No two hazards are exactly the same and each sho...

Page 9: ...eature is designed to protect user from unsafe water temperatures or hot water chemical reaction should cold supply be interrupted during use 3 Unique constant cold water flow design ensures that in t...

Page 10: ...8 l min Maximum Flow Rate 120 l min Maximum Dynamic Inlet Supply Pressure supplies must be nominally equal 6 9 bar MAximum Static Pressure 10 bar Minimum Inlet Supply Pressures 2 7 bar Drench Shower 1...

Page 11: ...upply pressures are nominally equal Caution High water pressures may deliver a volume and spray force which is injurious to the user Check with fixture manufacturer or regulate water pressures within...

Page 12: ...12 1290447 W2 B 6 0 mm 3 0 mm a b 1 3 0 mm 6 0 mm 2 6 0 mm...

Page 13: ...13 1290447 W2 B 3 32E Install the connections 32E BSP 320 F...

Page 14: ...14 1290447 W2 B 4 1 min 5 3 0 mm...

Page 15: ...15 1290447 W2 B 6 32E Install the pipework a 32E BSP b...

Page 16: ...16 1290447 W2 B c 7 32E shown The rest of the installation procedure is similar for all variants of the 32 valve 320 F...

Page 17: ...of hot water is available at the hot inlet of the mixing valve For optimum performance the minimum temperature of the hot water must be at least 20 C above the blend Validate The Commissioning It is i...

Page 18: ...atic Mixing Valve is of non serviceable single cartridge construction The cartridge can be removed from the valve for inspection or replacement by first removing the temperature control handle using a...

Page 19: ...entification Label Fixed Here WARNING This cartridge is only suitable for use with the 32E Emergency Shower at low blend temperatures 25 C or below Do not use in any other product F17170 1 Kohler Mira...

Page 20: ...arning Label indd 1 09 01 2017 09 04 11 Important Do not remove hub when fitting the spare cartridge Temperature Factory preset must not be adjusted Identification Label Fixed Here WARNING This cartri...

Page 21: ...ck 523 19 Compression Fitting Not Illustrated 1847 093 3 4 BSP Connector Pack 1847 111 1 BSP Female BSP Pack 1847 153 Elbow Connection Pack 1847 184 Isolating Elbow Pack 1847 227 Seal Pack Not illustr...

Page 22: ...e Subject to rectification of supply conditions Check the thermostatic performance renew cartridge assembly if necessary f Normal function of mixing valve indicates hot water inlet supply failure inte...

Page 23: ...23 1290447 W2 B Notes...

Page 24: ...oning Responsive and Maintenance Contract Service Packages please contact Telephone 0844 571 1777 Please Note Calls cost 7p per minute plus your phone company s access charge Fax 01242 282595 Email ra...

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