BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

HVAC System

Assembly

Two rooftop climate units sized for high passenger heat load and frequent door cycles. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

HVAC System parts and their functions

3 top-level parts · 283 parts in total · full bill of materials below
HVAC System parts diagram: 1 rooftop HVAC unit, 2 HVAC ducting, 3 HVAC controller. 283 parts in 3 top-level items.
HVAC System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Rooftop HVAC Unit 6 parts 2× One per body section
2 HVAC Ducting 1×
3 HVAC Controller 5 parts 1×

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for HVAC System

3 top-level lines · 20 rows shown · 283 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Rooftop HVAC Unit 6 parts bus-rapid-transit-vehicle-rooftop-hvac-unit 2× 2 86 assembly
1.1 HVAC Compressor 4 parts bus-rapid-transit-vehicle-hvac-compressor 1× 2 28 assembly
1.1.1 Servo Motor 4 parts + deeper › servo-motor 1× 2 24 assembly
1.1.2 Ball Bearing ball-bearing 2× 4 · part
1.1.3 O-Ring Set oring-set 1× 2 · part
1.1.4 Oil Seal oil-seal 1× 2 · part
1.2 Condenser Coil bus-rapid-transit-vehicle-condenser-coil 1× 2 · part
1.3 Evaporator Coil bus-rapid-transit-vehicle-evaporator-coil 1× 2 · part
1.4 Blower Fan 2 parts bus-rapid-transit-vehicle-blower-fan 2× 4 26 assembly
1.4.1 Servo Motor 4 parts + deeper › servo-motor 1× 4 24 assembly
1.4.2 Ball Bearing ball-bearing 2× 8 · part
1.5 Heating Element heating-element 2× 4 · part
1.6 Cabin Air Filter bus-rapid-transit-vehicle-cabin-filter 2× 4 · part
2 HVAC Ducting bus-rapid-transit-vehicle-hvac-duct 1× 1 · part
3 HVAC Controller 5 parts bus-rapid-transit-vehicle-hvac-controller 1× 1 110 assembly
3.1 Bare PCB pcb-bare 1× 1 · part
3.2 Microcontroller mcu 1× 1 · part
3.3 Relay relay 6× 6 · part
3.4 SMD Passive (R/C/L) smd-passives 90× 90 · part
3.5 Connector connector 12× 12 · part

Something wrong in this list? Report a problem with this BOM.

Where the HVAC system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Bus Rapid Transit Vehicle

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks