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V1.02
3. c.
Locating the RECOUP TRAY+ DSS-S2 (1200mm)
The RECOUP Tray+ DSS-S2
(1200mm)
needs to be installed horizontal. Installation should
take place on a flat base capable of supporting the WWHRU using the fixings provided, and
should allow for access to all parts and routine maintenance (E.g. Cleaning) to be carried out
with relative ease.
The RECOUP Tray+ DSS-S2 (1200mm)
must be located within the heating envelope of the building.
The Tray+ DSS-S2 (1200mm)
must be installed with consideration to the most recent ‘Approved
document – Part H of the Building Regulations’ for preventing the ingress of foul sewer gases.
3. d.
Design Checklist
For recognition within the SAP calculations, the following must be complied with:-
Consideration given to DHW delivery performance (Pressure & Flow rate)
DHW system must be a mains pressure system
DHW system must accept preheated water
The RECOUP Tray+ DSS-S2 (1200mm) must be located within the heating envelope of the
building.
The shower must be fitted with a Thermostatic Mixing Valve
Keep the distance from the shower waste outlet to the WWHRS to within 3m to maintain a
high level of efficiency (With the Recoup Tray+ DSS-S2 (1200mm), the exchanger is built into
the tray, so distance is not an issue) by minimising heat losses in the drainage system prior
to the WWHRS.
The
Preheated
water supply from the RECOUP Tray+ DSS-S2 (1200mm) to the shower cold
water inlet and water heater must be: -
o
Insulated in accordance with the ‘Building Services Compliance Guide’.
DO NOT INSULATE THE ACTUAL RECOUP TRAY+ DSS-S2 (1200mm)
o
Labelled to prevent any future connection of hot water take-off points (E.g. Taps).
Prevent the RECOUP Tray+ DSS-S2 (1200mm) being heated above 25°C by both external
sources and from ambient temperature.
If shut-off valves are specified they should be ‘full-flow (non-restricting) shut-off valves.
Approved document – Part H of the Building Regulations has been consulted and an
appropriate method for preventing the ingress of foul sewer smells chosen.
Consideration must be given to point 6. In section 4.b, with regards to ventilation of the
trap.
