- Goal: stable, glare-controlled illumination that withstands heat, steam, and cleaning routines.
- Risks addressed: moisture ingress, material degradation, discoloration, cable/connector heat stress, and user glare.
- Deliverables: materials + sealing strategy, mounting and harness rules, validation plan, and documentation pack.
- Machine layout and lighting locations (cup zone / UI / accents)
- Heat/steam exposure map; maximum temperature near lights; cleaning chemicals used
- Target lighting effect (downlight beam, brightness, glare limits) and any camera requirements
- Power/control method and driver/controller location
- Mechanical constraints (space, cable routing, service access) and serviceability requirement
- Compliance targets and sample/volume expectations
- Early failures from steam/condensation ingress near hot zones
- Yellowing/cracking of materials from heat and chemicals
- Glare or hotspot in the cup zone affecting user experience
- Cable/connector softening or intermittent faults due to heat stress
- Difficult service replacement in tight assemblies
- Flicker under PWM/control mismatch
- Heat management: power density control; thermal path design; keep critical parts away from hotspots
- Steam/moisture protection: sealing at cable entry/end caps; avoid capillary paths; protect joints
- Chemical resistance:** select materials and surface protection matched to cleaning agents; define cleaning boundaries
- Glare control: lens/diffuser selection; shielding and beam shaping for downlight window
- Harness reliability: heat-rated wire/jacket where needed; strain relief; connector placement away from hot/steam zones
- Serviceability: modular replacement approach and access planning
- Heat soak | Condition: max temperature zone | Pass: stable output; no deformation/discoloration beyond spec
- Steam/condensation exposure | Condition: repeated cycles | Pass: no moisture ingress; stable output
- Chemical wipe test | Condition: project-defined agents | Pass: no cracking/stickiness; appearance within spec
- Glare/appearance check | Condition: user viewing angles | Pass: acceptable glare/hotspot level
- Dimming/flicker check | Condition: control method | Pass: stable dimming; no visible flicker
Compliance support (as applicable):
- CE / RoHS / REACH
- UL/ETL support if requested (confirm model scope)
Documents pack typically includes:
- Product specification sheet (electrical/optical/mechanical)
- Wiring diagram + harness drawing + pinout
- Harness BOM (wire gauge, connector type, lengths)
- Installation guide (mounting + cleaning guidance)
- Validation / test plan + test summary (project-based)
- Incoming inspection checklist + in-process QC checklist
- Traceability: lot marking + basic production records
- Change control: ECN/PCN record for revisions
- Packing and labeling requirements (if provided by customer)