Map Capacity, Routing, Drainage, Snow and Noise Constraints

Route electrical assessment

Record panel and service evidence, planned loads, proposed equipment data, circuits and disconnects without opening electrical equipment.

Draw indoor-outdoor routes

Map line-set, duct, wiring and condensate paths plus penetrations, fire or weather barriers and restoration.

Compare outdoor locations

Record setbacks or authority questions, airflow, service clearances, roof drainage, property boundaries and nearby windows or outdoor areas.

Plan defrost drainage

Ask where water goes in winter, how ice and erosion are considered and what maintenance remains.

Record snow and debris context

Document roof shedding, drifting, vegetation and service access without prescribing stands or clearances.

Use equipment sound evidence

Compare published data and proposed placement; actual perception and compliance depend on site conditions and current rules.

Map electrical dependencies

List safely documented service information, proposed outdoor and indoor equipment, auxiliary heat, disconnects and other planned loads. Require qualified load assessment and permit routing rather than inferring capacity from panel spaces or breaker labels.

• Never remove panel covers
• Coordinate backup heat load
• Record electrical scope exclusions

Score outdoor locations

Compare airflow clearance, snow accumulation, roof or grade drainage, prevailing weather, sound-sensitive windows, walkways, neighbour context, line-set distance and service access. Reject a location that works only in fair weather or blocks maintenance.

• Show snow-management clearance
• Protect condensate discharge
• Keep coil and controls accessible

Coordinate penetrations and drainage

Draw refrigerant, electrical and condensate routes through the building with sleeves, air or water sealing, fire or acoustic interfaces and finish repair. Define who verifies gravity drainage or pump requirements and winter behaviour.

• Label every wall penetration
• Avoid drainage across walkways
• Photograph concealed routing

Issue the coordinated site-and-service drawing

Show outdoor unit clearances, snow and drainage context, weather exposure, nearby windows and paths, service access, line-set and condensate routes, wall penetrations, indoor equipment and electrical supply. Connect proposed equipment and backup heat to the qualified load assessment, permit route and responsible trades. Identify finish repair, fire or acoustic interfaces and winter drainage review. Photograph concealed routes and final mounting. This drawing coordinates installation facts without declaring panel capacity, acceptable sound, weather resilience or drainage performance from a catalogue clearance alone. Review the drawing on site with the responsible HVAC, electrical and finish scopes before drilling or mounting. Record any route change, why it occurred and which affected detail was reapproved.

• Mark snow accumulation zones
• Protect walkways from discharge
• Label electrical responsibilities
• Document every penetration
• Preserve service clearances