Armstrong 3031 Manuale di installazione e manutenzione - Pagina 19

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5. Mixed water

temperature too high.

6. Mixed water

temperature too low.

7. Mixed water flow rate is

reduced.

8. Water leaking from

valve body.

a. Mixing Valve set too high and has not

been commissioned correctly.

b . M i x i n g Va l v e h a s n o t b e e n

commissioned correctly and was set

when the hot supply temperature was

too low.

c. Hot water is migrating into cold supply. See Item 4 above.

d. Thermostat not operating correctly.

a. Mixing Valve set too low and has not

been commissioned correctly.

b. Hot water heat is not keeping up with

demand.

a. Partially occluded inlet screens/filters

or partially blocked inlet fittings.

b. Inlet supply pressure has fallen.

c. Accumulated pressure losses within

the system are too high.

a. Seals worn or damaged.

Refer to Commissioning - Rectify.

Replace Cartridge.

Refer to Commissioning - Rectify.

Check-Rectify.

Refer to Servicing/Maintenance - Rectify.

Check-Rectify.

Refer to a trained and appropriate

authority for system sizing assistance.

Obtain Seal Pack and renew all seals.