Direct Expansion Circuit

Assembly

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Sealed refrigerant system with compressor, condenser coil, evaporator coil, expansion device, and isolation valves.

Direct parts	7
Total parts	9
Used in	1 assembly
Class	Assembly

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Sealed refrigerant system with compressor, condenser coil, evaporator coil, expansion device, and isolation valves. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Direct Expansion Circuit parts and their functions

7 top-level parts · 9 parts in total · full bill of materials below

Direct Expansion Circuit parts diagram: 1 refrigerant compressor, 2 condenser coil, 3 evaporator coil, 4 expansion valve, 5 receiver tank, 6 isolation valve, 7 refrigerant tubing. 9 parts in 7 top-level items. — Direct Expansion Circuit parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Refrigerant Compressor	1×	Scroll or rotary compressor 3–10 tons capacity
2	Condenser Coil	1×	Aluminum fin condenser for outdoor heat rejection
3	Evaporator Coil	1×	Direct-expansion cooling coil in supply air path
4	Expansion Valve	1×	Thermal or electronic expansion device
5	Receiver Tank	1×	Liquid refrigerant accumulator and separator
6	Isolation Valve	3×	Liquid, suction, and discharge isolation ball valves
7	Refrigerant Tubing	1×	Copper tubing with solder connections

3D model

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Build & assembly graph

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Bill of materials for Direct Expansion Circuit

7 top-level lines · 7 rows shown · 9 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Refrigerant Compressor	rooftop-package-unit-compressor	1×	1	·	part
2	Condenser Coil	rooftop-package-unit-condenser-coil	1×	1	·	part
3	Evaporator Coil	rooftop-package-unit-evaporator-coil	1×	1	·	part
4	Expansion Valve	rooftop-package-unit-expansion-valve	1×	1	·	part
5	Receiver Tank	rooftop-package-unit-receiver-tank	1×	1	·	part
6	Isolation Valve	rooftop-package-unit-isolation-valves	3×	3	·	part
7	Refrigerant Tubing	rooftop-package-unit-refrigerant-lines	1×	1	·	part

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Where the direct expansion circuit is used

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

HVAC & Plumbing 1 Rooftop Package Unit

Used in 1 assembly

Rooftop Package Unit

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

Vendor	HQ	Specialty	MOQ	Lead 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