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, roof shedding, weather exposure, nearby windows and paths, service access, line-set and condensate routes, wall penetrations, indoor equipment and electrical supply. Connect proposed equipment and supplementary heat to the qualified heat-load and electrical-capacity assessments, permit route and responsible trades. Technical Safety BC says most residential heat-pump installations require an electrical permit and licensed electrical work; it also identifies separate gas-permit implications when an existing gas furnace or boiler is modified or removed. Record who verifies which rule applies to this property and scope. Its heat-pump guidance also distinguishes residential systems that may trigger regulated refrigeration requirements because of building size, refrigerant type or equipment rating. Do not infer an exemption from a brochure—record the contractor’s permit and licence determination for the exact system. Check the City of Vernon’s current permit directory for building, structural, penetration or other municipal interfaces rather than assuming the electrical permit resolves every site issue. Identify finish repair, weather sealing, fire or acoustic interfaces, defrost-water path and winter drainage review. Document the proposed pad or support without prescribing a universal height; account for drifting, plowing, roof discharge and safe service clearance. Compare published sound data with the proposed location and current rules, while avoiding a promise of silence or compliance from a catalogue value alone. Photograph concealed routes and final mounting. Review the drawing with responsible HVAC, electrical, gas, refrigeration and finish scopes before drilling or mounting. Record each route change, why it occurred, which calculation or permit it affects and who reapproved it. The coordinated drawing organizes evidence without declaring panel capacity, acceptable sound, weather resilience or drainage performance from generic clearances.

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