Step-by-Step-HVAC-System-Installation-Service-Workflow 
                     Step-by-Step: AC System 
Installation Service 
Workflow
This presentation provides a comprehensive overview of our 
professional HVAC system deployment process. We adhere to 
all UK Building Regulations and F-Gas standards, ensuring 
maximum system efficiency and client satisfaction. for more 
details  visit us - 
https://www.myacguys.com/air-conditioning/air-conditioning-in
stallation/
1. Initial Site Survey & Heat Load Assessment
Our process begins with an on-site visit to evaluate your 
property's specifics and understand your unique cooling 
needs.
1 Detailed heat load calculation using industry 
standards like CIBSE Guide A.
2 Assessment of insulation, glazing, occupancy, and 
solar gain factors.
3 Verification of existing electrical supply capacity 
for compatibility.
4 Confirmation of optimal outdoor unit placement for 
airflow and noise limits.
2. System Design & Equipment Specification
AC Type & Capacity Selection High-Efficiency Units Optimised Refrigerant Lines
We select the most appropriate AC Only high-efficiency units with Refrigerant line runs are designed 
type (split, multi-split, VRF) and minimum SEER A+ and SCOP A+ for optimal length and minimal 
capacity (kW/BTU/hr) for your ratings are specified for energy bends to ensure peak 
property. savings. performance.
Condensate Drainage Planning F-Gas Compliance
A precise condensate drainage All designs strictly comply with F-
route, with a minimum 1:50 fall, is Gas Regulation (EC) No 517/2014 
planned to prevent water issues. for environmental protection.
3. Pre-Installation: Permits & Site Preparation
Permit Acquisition
We obtain all necessary planning permissions from the local council 
before work begins.
Thorough Site Checks
Pre-checks include wall integrity, ceiling space, and power availability.
Health & Safety First
Rigorous health and safety measures are implemented, including PPE 
and risk assessments.
Property Protection
Client property is protected with dust sheets, and the work area is kept clear.
Refrigerant Compatibility
We confirm refrigerant type compatibility (e.g., R32, R410A) for seamless integration.

4. Outdoor Unit Installation (Condenser)
Secure Mounting
The outdoor unit is securely mounted on level, vibration-dampening pads.
Clearance Maintenance
Minimum clearances (e.g., 30cm from walls, 100cm from obstacles) are maintained for optimal operation.
Power Connection
Main power is connected to the outdoor unit via a dedicated isolator switch.
Communication Cabling
The electrical communication cable connects the indoor and outdoor units.
Condensate Discharge
Proper condensate discharge ensures water flows away from building foundations.
5. Indoor Unit & Refrigerant Line Installation
Indoor Unit Mounting
Indoor units (evaporators) are mounted securely and perfectly level.
Wall Penetrations & Sealing
Precise wall penetrations are created (e.g., 65mm core drill) and sealed.
Refrigerant Line Routing
Insulated copper refrigerant lines (suction and liquid) are routed efficiently.
Nitrogen Purge Brazing
Pipe joints are brazed using a nitrogen purge to prevent oxidation and ensure clean lines.
Pressure Testing
Lines are pressure tested with oxygen-free nitrogen (e.g., 400psi for 24 hours) for integrity.
Deep Vacuum Evacuation
Lines are evacuated to a deep vacuum (below 500 microns) to remove moisture and contaminants.
7. Commissioning, Testing & Handover
Operational & Temperature 
Leak Detection & Charge
Tests
Final leak detection is 
Full operational tests are 
performed, and refrigerant 
conducted, including 
charge is measured and 
temperature differential and 
adjusted.
airflow checks.
Client Briefing & Support F-Gas & Commissioning 
Report
The client receives a thorough 
briefing on system operation, F-Gas logbook entries are 
remote control, and completed, and a 
maintenance. Warranty and comprehensive commissioning 
support contact details are report is provided.
provided.