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1143923-W2-E
Lubricants
Silicone based lubricants must only be used on
the rubber seals.
Caution!
Oil based or other lubricant types may
cause rapid deterioration of seals.
Cleaning
The chrome plated parts should be cleaned using
a mild washing up detergent or soap solution,
rinsed and then wiped dry with a soft cloth.
Warning!
Many household cleaners contain
abrasive and chemical substances, and should not
be used for cleaning plated or plastic fittings.
Do not
use descalents on this product.
In-service Tests
The principal means for determining the continuing
satisfactory performance of the mixing valve is the
in-service test.
Frequency of In-service Tests - Commercial
(non-domestic installations)
Check for correct blend setting every 6 months.
Routine Maintenance
The only maintenance required is a periodic
check of the inlet filters and de-scaling of the
shower head.
Filter Cleaning/Change
Exposed Mounted Models
The filters are fitted in the inlet elbows and it will
be necessary to remove the valve off the wall to
access these filters:
1.
Turn off the hot and cold water supplies to the
valve.
2.
Disconnect the outlet shower fittings (unscrew
the flexible hose and retain the sealing washer
or if rigid riser fitted, unscrew the compression
joint).
3.
Using the 2.5 mm hexagonal key, loosen
the grubscrews retaining the valve on to the
backplate.
If you require a Rada trained service engineer or
agent, refer to section:
‘Customer Services’
.
Fault Diagnosis
Symptom:
•
Only hot or cold water from the mixer outlet.
•
Outlet temperature too hot / too cold.
Cause Rectification:
•
Inlets reversed (hot supply to cold supply).
Refer to section:
‘Reversed Inlet Supplies’
.
•
No hot water reaching mixer.
•
Check the filters for any blockage.
•
Installation conditions outside operating
parameters, refer to sections:
‘Specifications’
and
‘Commissioning’
.
•
If the temperature is too cold and you have
a combination type boiler it may not be
producing sufficiently hot water at desired
flow rate (refer to
‘Specifications’
). Fit flow
regulator (supplied) to shower valve outlet.
For more information contact Mira Showers
or visit the website.
—————————————
Symptom:
•
Fluctuating or reduced flow rate.
Cause Rectification:
•
Check the showerhead, hose and filters for
any blockage.
•
Make sure that the maintained inlet pressures
are nominally balanced and sufficient, refer to
section:
‘Specifications’
.
•
Make sure that the inlet temperature
differentials are sufficient, refer to section:
‘Specifications’
.
•
Air lock or partial blockage in the pipework.
•
Flow regulator fitted incorrectly.
•
Low flow causing combination boiler to cycle.
Operate at preset maximum flow.
—————————————
Symptom:
•
Water leaking from the showerhead.
Cause Rectification:
•
Normal for a short period after shut off.
•
Check that the pressures are not in excess of
the specifications for the product.
•
Renew the thermostatic cartridge.
MAINTENANCE