Views: 0 Author: Site Editor Publish Time: 2026-06-24 Origin: Site
Packaged units (floor-standing, rooftop, vertical/horizontal packaged AC) are widely used in factories, workshops, warehouses and industrial facilities. Below is selection, specs, types and key design requirements.
1. Main Unit Types & Application
1.1 Rooftop Packaged Unit (RTU)
All-in-one design, installed on roof, no indoor/outdoor split piping.
Pros: Saves floor space, centralized ventilation, easy duct layout for large workshops.
Best for: Large factory halls, assembly workshops, logistics warehouses.
Capacity: 5RT ~ 100RT.
1.2 Floor Standing Packaged AC (Vertical Cabinet Type)
Free-standing, plug-and-play, simple installation.
Pros: Low installation cost, movable, no complex ductwork.
Best for: Production lines, small workshops, staff offices inside factory, temporary work areas.
Capacity: 2RT ~ 30RT.
1.3 Horizontal Ducted Packaged Unit
Concealed ceiling/mezzanine mount, hidden layout.
Pros: Neat appearance, low noise, uniform air distribution.
Best for: Precision workshops, lab areas, factory showrooms.
2. Core Design Requirements for Industrial Use
2.1 Cooling Load Sizing
Standard industrial load reference:
General factory/workshop: 220 ~ 300 W/㎡
Workshop with machinery/heat equipment: 300 ~ 450 W/㎡
Precision workshop (machining/electronics): 280 ~ 380 W/㎡
Warehouse (low occupancy): 150 ~ 220 W/㎡
2.2 Temperature & Humidity Control
Common production area: 24–28°C, 40–65% RH
Electronic/precision workshop: 22–25°C, 45–55% RH (anti-static & condensation)
Humid workshops: Enhanced dehumidification coil + large drain system
2.3 Filtration (Factory Dust & Particle Control)
Factories have heavy dust, fumes and particles:
Basic: G3/G4 pre-filter (washable metal mesh optional)
Mid-level: G4 + F7 composite filter
Precision/clean workshop: Add F8/H13 fine filter
Quick-detach filter frame for easy cleaning & replacement
2.4 Fan & Static Pressure
Medium-high static pressure: 200–400 Pa (for long ducts, multiple air outlets)
Direct-drive / heavy-duty belt-driven centrifugal fans
VFD speed regulation: adapt to variable occupancy and heat load
Reinforced fan housing, anti-vibration mounts
2.5 Compressor & Refrigeration System
Scroll / semi-hermetic compressor: stable, durable for 24/7 continuous operation
Multiple compressors for large units: staged start, partial load energy saving
Standard refrigerant: R410A, R134a; low-GWP options available
High/low pressure protection, overload protection, anti-liquid return design
3. Climate & Environment Custom Upgrades
3.1 High Ambient (Up to 50–55°C)
Enlarged condenser coil + enhanced cooling airflow
Class H high-temperature resistant motors
High-head pressure protection
3.2 Coastal / Corrosive Environment
Galvanized steel + heavy-duty polyester coating / 304 stainless steel casing
Epoxy coated evaporator & condenser coils
Stainless steel drain pan, bolts and fasteners
3.3 Cold Climate
Compressor crankcase heater
Automatic hot gas defrost
Anti-freeze heating for drain pipes
3.4 Explosion-Proof (Chemical / Oil & Gas Factory)
Explosion-proof motors, electric components and control boxes (Ex certification)
Sealed electrical wiring, flameproof structure
3.5 High Vibration Workshop
Thickened base frame, multi-layer vibration isolators
Flexible duct connectors to isolate vibration transfer
4. Heating Options
Electric heater: Simple installation, for small factories
Gas heating: Low operating cost, for large spaces
Hot water/steam coil: Connect factory central heating system
Heat pump: Energy saving for areas with mild winter
5. Control System
Industrial-grade microprocessor controller, stable for harsh environment
Basic functions: temp set, timing run, fault code alarm
Optional: BACnet/Modbus for factory central BMS
Group control for multiple units, remote monitoring
6. Key Advantages for Factory Application
Integrated structure: Less on-site piping work, short construction period
High durability: Designed for 24h non-stop running
Flexible layout: Multiple installation forms to fit different factory spaces
Easy maintenance: Standardized parts, convenient inspection and repair
