A residential HVAC project including air conditioning and fresh air refers to designing, installing, and commissioning a system that provides thermal comfort and indoor air quality in a home. Here’s what the job is about:
Provide Cooling & Heating – Maintain comfortable indoor temperature.
Ensure Fresh Air Ventilation – Introduce outdoor air to maintain good indoor air quality (IAQ).
Control Humidity – Maintain proper humidity levels for comfort and health.
Energy Efficiency – Optimize system performance to reduce energy consumption.
Air Conditioning (Aircond):
Split units, multi-split, VRV/VRF systems, or central ducted systems.
Fresh Air System:
Fresh Air Handling Unit (FAHU) or Energy Recovery Ventilator (ERV) to supply filtered outdoor air.
Ductwork & Diffusers:
Distribute conditioned and fresh air evenly in the house.
Controls & Thermostats:
For temperature, humidity, and ventilation control.
Site Survey & Load Calculation:
Calculate heat load (BTU/h) for each room.
Determine fresh air requirement per ASHRAE/Local standards.
System Design:
Select AC units, fresh air fans, filters, duct sizes, and layout.
Installation:
Install indoor/outdoor AC units.
Install ductwork for air distribution.
Install fresh air intake, filtration, and exhaust system.
Commissioning & Testing:
Vacuum and charge refrigerant properly.
Balance airflow for both AC and fresh air.
Test indoor air quality (CO₂ levels, humidity).
Handover & User Training:
Explain system operation, maintenance schedule.
Reduces CO₂ build-up.
Prevents stuffiness and odor.
Improves health by diluting indoor pollutants.
一个 包含空调和新风的住宅 HVAC 项目,主要是指为家庭设计、安装和调试一个能够提供 热舒适和室内空气质量 的系统。以下是该工作的内容:
提供制冷和供暖 —— 保持舒适的室内温度。
确保新风通风 —— 引入室外空气,保持良好的室内空气质量(IAQ)。
控制湿度 —— 维持适宜的湿度水平,保障舒适和健康。
节能高效 —— 优化系统性能,降低能耗。
空调系统(Aircond):
壁挂机、风管机、多联机(VRV/VRF 系统)或中央空调。
新风系统:
新风处理机组(FAHU)或全热交换器(ERV),用于输送过滤后的室外空气。
风管和风口:
均匀分布空调和新风。
控制与温控器:
控制温度、湿度和通风。
现场勘测与冷负荷计算:
计算每个房间的冷负荷(BTU/h)。
按 ASHRAE 或本地标准确定新风量需求。
系统设计:
选择空调设备、新风风机、过滤器、风管尺寸及布置。
安装:
安装室内外空调机组。
安装风管系统用于空气分布。
安装新风进风口、过滤器和排风系统。
调试与测试:
进行系统真空处理并正确充注制冷剂。
平衡空调和新风的风量。
测试室内空气质量(CO₂ 浓度、湿度)。
交付与用户培训:
解释系统操作及维护计划。
降低室内 CO₂ 浓度。
防止空气闷浊和异味。
稀释室内污染物,改善健康。