Installation; Suitable Plumbing Systems - Mira Coda PRO ERD Installation & User Manual

INSTALLATION

Suitable Plumbing Systems

Gravity Fed:
The thermostatic mixer must be fed from a cold
water cistern (usually fitted in the loft space) and
a hot water cylinder (usually fitted in the airing
cupboard) providing nominally equal pressures.
Gas Heated System:
The thermostatic mixer can be installed with a
combination boiler.
Unvented Mains Pressure System:
The thermostatic mixer can be installed with an
unvented, stored hot water system.
Mains Pressurised Instantaneous Hot Water
System:
The thermostatic mixer can be installed with
systems of this type with balanced pressures.
Pumped System:
The thermostatic mixer can be installed with
an inlet pump (twin impeller). The pump must
be installed on the floor next to the hot water
cylinder.
General
Installation must be carried out in accordance
with these instructions, and must be conducted by
designated, qualified and competent personnel.
The installation must comply with the "Water
Supply Regulations 1999 (Water Fittings)" or any
particular regulations and practices, specified by
the local water company or water undertakers.
Note! Make sure that all site requirements
correspond to the information given in section:
'Specifications'.
1. The mixer must not be installed in an area
where it may freeze.
2. For stud partitions alternative fixings may be
required.
3. Isolating valves must be installed close to the
mixer for ease of maintenance.
4. Pipework must be rigidly supported and avoid
any strain on the connections.
5. Pipework dead-legs should be kept to a
minimum.
6. Decide on a suitable position for the mixer.
The position of the mixer and the shower
fittings must provide a minimum gap of 25 mm
between the spill-over level of the shower tray/
bath and the showerhead (refer to illustration).
This is to prevent back-siphonage.
Note! Only use shower fittings recommended
by the manufacturer or supplier.
7. All pipework must be checked for leaks before
the product installation is completed. The
product should be pressurised & the inlet &
outlet connections inspected.
8. DO NOT overtighten grubscrews as product
damage may occur. Use hexagonal key
provided and hand tighten only, do not use
powertools.
5
25 mm
Spill Over
Level