LEADERS IN HVAC TECHNOLOGY

SERVICES

Design, Measurement and Evaluation Planning

Dephy Nig. Ltd is specialized in Design, measuring and evaluation planning of HVAC projects. Our HVAC designs include:

Load Calculation (Cooling and Heating)
Using the ASHRAE standard to determine loads and airvelocity,
Ensuring that both latent and sensible loadcomponent are considered for the load calculations.
Duct Design and Layout
Determining the air flow, the register locations, type
acoustic calculations, pressure drop calculation (internal and external) duct length and connections required to produce layout given construction constraints.
Specifying the material for ducts and their size according to SMACNA standards
Design and layout of accessories such as diffuser, dampers, grills etc.
Layout of duct system on floor plan, accounting for direction of roof hips, fire walls and other potential obstructions.
Pipe Sizing & its layout
Calculating the required water flow, size the pipe, decides fittings locations and isolators where needed to design the piping system.
Specifying the pipe material and criteria for pipe sizing.
Layout of piping systems.
HVAC Equipment Selection
After sizing the HVAC equipment to sensible load usingthe ASHRAE standards.
Selecting the equipment like, AHU,FCU, Water cooled
Condensers, Air Cooled Chillers, Cooling Towers, VFR
Units, Pumps, Valves, package Units, fans and others
system Accessories.
Also Schedule of Equipment.

Plumbing Mechanical Design

Determining if the sump pumps or sewage ejector
pumps are required

Sizing sanitary drainage/vent riser according to the number of fixture unit to be carried.
Assigning fixture unit to each plumbing fixture according to usage and concern code.
Storm Water System
Estimating roof area
Determining riser and horizontal run size from rain flow data and applicable code, also using British standard.
Placing roof drains, leaders, main stacks, floor drains,floor sinks, sprinkler riser, funnel darns, fire stand pipe risers,etc.
Verifying structural drawings for shaft location and
how it may affect the plumbing work.

Electrical Designs

We provide high quality and accurate electrical engineering
services which are customized to meet individual project
requirements. The key to our success is our ability to
comply with the expectations and demand of our clients.

The Electrical Services includes:
Design of Lighting System
Lighting Load Estimations and determining numbers of
feeder for.

Lighting panel
Lighting Fixture Layout Designing involving normal,
Emergency, Critical and life Safety
Lighting Fixture identification as per the standard and
occupancy sensors, dimmers, etc
Calculating the Lux level for each classified areas together with lighting controls requirement for power savings
Worst –Case Egress Lighting Estimation.
Lighting distribution Panel design and designing
Emergency Panel
Determining the Lighting panel location based on provided inputs
Switchgear Sizing.
Transformer sizing and Locations
Design of Power supply
Design of power distribution System
Design of fire protection System
Drafting of Lighting Power and Distribution System.

SERVICES

ABOUT US

Dephy Nig. LTD is a Nigeria Company which is involved in the field of Mechanical (HVAC), Electrical and Building Engineering Services. We also do procurement, design, Installation and general maintenance in HVAC, MEP, etc.
Our professional staffs are duly registered with COREN,NSE, NATE, EPA and as well as other professional bodies including Safety Professional.
Dephy was incorporated with the Corporate Affairs Commission with Registration Number, 1371425 as a Private Limited Liability Company.

One of our main advantages is the provision of personnel who have been exposed to projects of similar nature locally and internationally and are involved at conception, design stages, construction supervision, servicing and maintenance.
The operations of the company are fully departmentalized with each department handling a single specialized operation by well experienced technical personnel with supportive staff. Our project director coordinates and supervises at our various field and site operations.

Dephy possesses an established reputation in the design, management and implementation of development projects, including:
• Innovative ideas and experiences in project design;
• A strong focus on the institutional, social, and
economic challenges at play in the administration of any development project;
• The rapid start-up and efficient management of large scale projects involving multiple local and international partners;
• Swift identification and deployment of highly qualified short and long term expertise;
• The provision of timely and responsive technical and managerial.
• Working with project schedule to deliver and commissioning of project in line with project estimated time/period.
• Using just-in-time approach to achieve project goal
• Using 6 sigma approach to reduce or minimize risk and reject rate.
Dephy are masters of provision of unique design
approaches merging tradition with technology to provide the design, installation and maintenance that clients can be proud of.
Dephy provides Quality Design and installation Solutions to match client’s economic requirements and implement them in a professional manner. All documentations required for compliance with the regulatory requirements are prepared.