Sector: Retail shop
Location: Cabot Circus, Bristol, England
Size: 75 m²
Status: Completed Q2 2023
InnoDez UK delivered a compact MEP engineering and energy package for a 75 m² tech-repair and accessories unit at Cabot Circus. The concept relies on dense plug-in loads, bright product walls, and quiet service benches. The team produced coordinated Mechanical, Electrical and Plumbing design and engineering that keeps the space cool and calm under showcase lighting, while meeting mall rules on noise, odour (none permitted), and riser use.
Create a silent backdrop at the sales edge, robust power for benches, and cool, glare-controlled demo zones. Provide clean power for device flashing and data transfer, future cable capacity, and metering so the operator can monitor baseload and night presentation. Maintain a tidy ceiling with no visible grilles in the shopfront.
Mechanical: Heat-pump VRF for heating/cooling sized to high internal gains. Dedicated outdoor air with energy recovery and temperature-trimmed demand control (bench-zone sensors modulate flow when demo walls heat up). Low-velocity linear slots near the façade to avoid draughts; returns via concealed shadow gaps.
Electrical: New DB with spare ways and sub-metering for HVAC, lighting, demo power, and bench power. Clean dedicated circuits for re-flash benches and device diagnostics; SPD and RCD protection to BS 7671. Small UPS keeps POS and ticketing live during brief outages. Track-fed shelf lighting with DALI scenes for “demo”, “service”, and “closed”.
Plumbing: Back-of-house tea point with point-of-use heater, compliant backflow, and condensate routing. No wet works on the shop floor to protect electronics.
Controls & energy: Simple scene plate; night setback for VRF; timed lighting scenes; auto-off for bench strips outside trading hours. Trend logs for temperature and bench-zone energy to support seasonal tuning.
Services route only through designated landlord risers. A shallow ceiling zone drove a split strategy: DOAS kept in back-of-house, slim linear slots at the front. Fire alarm and emergency lighting interfaces were set out on an interface schedule for centre management and Building Control. Acoustic targets (quiet sales edge, quiet bench area) achieved with lined ductwork and correctly sized attenuators; bench fans specified for low sone rating.
Designed and documented to UK regs and mall standards: Part L (energy), Part F (ventilation), Part B (fire), Part M (access), BS 7671 (electrical), BS 5839 (fire detection), BS 5266 (emergency lighting). Lighting design verified for uniformity and UGR across the demo wall to reduce eye strain.
Stable temperatures and low background noise despite high display heat loads.
Colour-true lighting with quick “service vs. demo” scene changes.
Reduced electricity use vs. the legacy unit through heat-recovery, targeted ventilation control, LED scenes, and sub-metering-led adjustments.
One-page user guide plus seasonal checklist for staff; clear O&M with labelled isolators and cable pathways for future adds.