Mechanical & Industrial Engineering (HVAC-R)
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Mechanical & Industrial Engineering (HVAC-R)

Central water-cooled chillers, multi-zone VRF systems, industrial cleanrooms, cyclone dust extraction, steam boiler loops, and food-grade stainless piping.

Governing Standards:ASHRAE 90.1 & 62.1 Energy & IAQSMACNA HVAC Duct ConstructionISO 14644 Cleanrooms StandardsNIS / SON Industrial Standards

Executive Scope & Engineering Operations

Precision Engineering, Grounded in 19+ Years of Field Practice

Since our founding as Krysta Form Technical Products, our mechanical engineering division has engineered heavy HVAC-R, industrial ventilation, and process utility piping for food manufacturing plants, corporate towers, and commercial complexes across Nigeria. Our in-house plasma sheet metal duct manufacturing lines at Makogi ensure rapid deployment, zero air leakage, and exact compliance with international standards.

Est. October 2007 (Nigeria)
Makogi Heavy Yard & Lagos Fleet
Mechanical & Industrial Engineering (HVAC-R) on-site installation

Verified Site Installation • Krysta Forms Operations

Systematic Scope of Work

Detailed Scope of Engineering Execution

Every system is engineered to international tolerances, backed by direct workshop staging and rigorous QA/QC documentation.

01.

Central Chillers & VRF/VRV Air Conditioning

Turnkey cooling infrastructure engineered for West Africa's tropical climate and heavy thermal loads.

  • Centrifugal and screw water-cooled & air-cooled industrial chiller plants (100TR – 800TR+).
  • Variable Refrigerant Flow (VRF) inverter systems for corporate towers, banks, and luxury hotels.
  • Precision computer room air handlers (CRAC) for data centers and server rooms.
  • Building Management System (BMS) integration with automated temperature zoning and energy monitoring.
02.

Industrial Ventilation & Cyclone Dust Extraction

Heavy manufacturing and food-grade factory environmental containment and air handling systems.

  • High-volume cyclone dust collectors and particulate filtration systems (GB Foods Nigeria).
  • Galvanized iron (GI) and 316-grade stainless steel kitchen and industrial exhaust hoods.
  • Underground car park jet-fan ventilation and emergency smoke purge systems.
  • Positive-pressure pharmaceutical cleanrooms and hospital operating theatres.
03.

Piped Industrial Services & Steam Infrastructure

High-pressure process utility piping designed for continuous factory uptime and severe duty cycles.

  • Steam boiler distribution loops, pressure reducing stations (PRV), and condensate return lines.
  • Compressed air ring mains with refrigerated air dryers and pneumatic drop points.
  • Chilled water insulated carbon steel and copper manifold systems with Armaflex cladding.
  • Food and beverage sanitary stainless steel CIP (Clean-In-Place) piping (GB Foods).

Engineering Tolerances & Parameters

Technical Specifications & Design Criteria

ISO 9001:2015 Calibrated

The following table outlines the governing design codes, material standards, and performance specifications applied across this discipline.

Engineering ParameterTechnical Specification & RangeGoverning Standard / Quality Code
Central Chiller Cooling CapacityWater-cooled centrifugal & air-cooled screw chillers (100TR – 800TR+)COP ≥ 5.8 / AHRI Certified
VRF / VRV Inverter SystemsMulti-zone simultaneous cooling/heating inverter systems (8HP – 64HP)Seasonal EER ≥ 4.2
Custom Sheet Metal DuctworkGalvanized iron (0.6mm–1.5mm) & stainless 316 spiral and rectangularSMACNA Leakage Class 3
Cyclone Dust ExtractionHigh-efficiency cyclone separators & reverse-pulse baghouse filtration99.5% particulate capture ≥ 5µm
Process Piping Pressure RatingFood-grade 304/316 SS & Schedule 40/80 black steel carbon pipingHydro-tested up to 30 Bar
Thermal & Acoustic InsulationClosed-cell elastomeric Armaflex (9mm–32mm) & 50mm rockwool claddingClass 0 Fire Rated (BS 476)
Mechanical & Industrial Engineering (HVAC-R) secondary equipment

Fabrication & Staging • Makogi Heavy Yard, Ogun State

Direct Machine Ownership

In-House Machinery & Calibrated Testing Rigs

We eliminate subcontracting bottlenecks by owning our core plasma cutting, hydro-testing, and electrical injection testing equipment across Lagos and Ogun State.

CNC High-Speed Plasma Duct Cutter1500 x 3000mm sheet bed

High-precision sheet metal HVAC duct profiling and geometric fittings

📍 Makogi Heavy Yard, Ogun State

Automated Spiral Duct Flanging & Lockforming Machine0.5mm – 1.6mm gauge sheet

Airtight duct seams, TDC/TDF flanged corners & low-leakage transitions

📍 Makogi Heavy Yard, Ogun State

Digital Electronic Flow Hoods & Anemometers±2% flow reading accuracy

Precise air volume balancing (CFM) & room air exchange rate verification

📍 Mobile HVAC Commissioning Squad

Dual-Stage Vacuum Pumps & Refrigerant Recovery Units10 CFM / 15 microns vacuum

Deep system dehydration, nitrogen leak hold testing & R410a/R32 charging

📍 Mobile Mechanical Squad

Engineering Governance

5-Stage Project Delivery Lifecycle

Our structured 5-stage project methodology ensures zero discrepancy between architectural design, workshop fabrication, and on-site commissioning.

01Thermal Modeling

Cooling Load Calculation & Psychrometric Analysis

HAP/ASHRAE building cooling load calculations, fresh air CFM ventilation sizing, and CFD thermal modeling.

Deliverable:Certified HVAC thermal load report & equipment selection schedule
02BIM Coordination

3D Ductwork & Piping Spatial Coordination

Detailed 3D layout of duct routing, chilled water risers, and clash elimination against electrical and structural elements.

Deliverable:Coordinated 3D MEP layout drawings & shop fabrication sheets
03Workshop Duct Fabrication

Automated Plasma Sheet Metal Cutting & Flanging

CNC duct profiling, automated Pittsburg seam closing, acoustic internal lining, and factory QA seal checks.

Deliverable:Factory duct fabrication log & SMACNA pressure compliance tags
04Site Rigging & Piping

Equipment Rigging, Nitrogen Brazing & Insulation Cladding

Chiller placement on vibration isolators, copper loop nitrogen brazing, steam line insulation, and duct hanging.

Deliverable:Nitrogen pressure hold test certs & radiographic weld inspection logs
05Commissioning & TAB

Testing, Adjusting & Balancing (TAB) & Handover

Air volume hood balancing, chilled water flow balancing, BMS integration, and operator training.

Deliverable:Official Testing, Adjusting & Balancing (TAB) report & O&M manual

Quality Assurance & Handover

Certified Engineering Handover Deliverables

Complete Documentation Package

Every contract executed by Krysta Forms Limited concludes with an authoritative, audit-ready handover dossier including:

Certified Testing, Adjusting and Balancing (TAB) Airflow Report
Refrigerant System Deep Vacuum & Pressure Hold Certificates
P&ID (Piping and Instrumentation Diagrams) & As-Built Layouts
Chiller Plant & VRF System Energy Commissioning Logs
Comprehensive Preventive Maintenance Schedule & Spare Parts List

Proven Track Record

Representative Project Case Studies

VIEW FULL PORTFOLIO MATRIX
GB Foods NigeriaSango-Ota Industrial Corridor

Factory Air Conditioning & Cyclone Dust Extraction

Turnkey ventilation, heavy dust capture cyclones, and stainless food-processing ductwork.

ISO 9001 Certified DeliveryRequest Tender Specs →
LASTMA Headquarters ComplexOshodi, Lagos State

Corporate Headquarters Complex HVAC Fitout

VRF central air conditioning, acoustic ducting, and fresh air intake systems.

ISO 9001 Certified DeliveryRequest Tender Specs →

Direct Engineering Consultation

Speak Directly with Our Technical Leads in Lagos & Ogun

Whether you have an upcoming tender, an architectural blueprint needing MEP coordination, or require heavy structural steel fabrication, our engineering directors are available for technical consultations.

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