Chilled-water circulation
Review the Duty Point, temperature, piping losses and pump arrangement.
Pump Selection Support for HVAC & Chiller
HVAC & Chiller Systems
McKarlen reviews submitted project data and pump duties for chilled-water, central HVAC, heating-water and cooling-water circulation applications.
Application scope
Circulation duties reviewed against project data
Each enquiry is reviewed against flow, total head, liquid, temperature, piping arrangement, installation position and operating requirements.
Central HVAC circulation
Prepare inline-pump selection data against the system schematic and available installation space.
Heating-water circulation
Confirm temperature, liquid and operating conditions before model selection.
Cooling-water circulation
Review flow, total head, temperature and the system boundary stated in the project documents.
Commercial buildings, hotels, hospitals and factories are application contexts only. They are not a list of published McKarlen project references.
Review risks
Common issues before pump selection
Missing or inconsistent data can result in the wrong Duty Point, pump configuration or Technical Document set.
Incomplete duty definition
Flow is available, but total head does not fully reflect static conditions and losses through pipes, valves or equipment.
Unclear circulation arrangement
Source conditions, pipe routing, equipment positions and operating requirements are not aligned.
Installation position not reviewed
Connection orientation, installation height and maintenance clearance remain unclear.
Incomplete system resistance data
Pipe sizes, route length, valves and heat-exchange equipment are not fully represented in the project data.
Unconfirmed operating arrangement
Pump quantity, operating schedule, control requirements and standby expectations have not been confirmed.
Inconsistent project documents
The Pump Schedule, BOQ and drawings use different equipment descriptions or operating conditions.
Input data
Required Project Data
Submit the information already available. The technical team will identify missing inputs before recommending a model.
Application and Duty Point
- System application
- Design flow
- Design total head
- Operating temperature
- Liquid type
Piping arrangement and installation position
- Circulation-loop or piping schematic
- Pipe connection requirement
- Installation position and maintenance clearance
Operation, electrical supply and control
- Operating schedule
- Available electrical supply
- Control requirement
- Proposed pump quantity if already defined
Project Technical File
- System drawings
- Pump Schedule
- BOQ
Complete inputs allow the technical team to review the Duty Point, CI or VI configuration and required document scope before recommending a model.
Engineering review process
From project data to Technical Confirmation
McKarlen reviews the pump-related scope. Overall system design remains with the appointed consultant, designer or contractor.
Receive Enquiry
Record the application, available documents and requested review scope.
Collect Required Data
Check flow, total head, liquid, temperature, piping, electrical supply, control requirements and installation position.
Engineering Review
Reconcile the submitted data, establish the Duty Point and identify assumptions or missing inputs.
Pump Selection and Technical Confirmation
Review CI or VI, the model, configuration and Technical Documents against approved sources.
Quotation and Delivery Coordination
Quote the confirmed technical scope and verify the equipment identity and documents before delivery.
After-sales Support
Review technical, spare-parts or warranty requests against the model, serial information, delivery records and operating conditions.
This process does not include complete HVAC system design or design disciplines outside the agreed equipment supply scope.
Relevant product families
CI and VI are reviewed against the system arrangement
CI and VI are considered only after the Duty Point, piping arrangement and operating conditions have been reviewed.
CI Series
A horizontal inline pump configuration considered for HVAC & Chiller circulation when the Duty Point, liquid and piping arrangement suit the model.
VI Series
A vertical inline pump configuration considered where the connection orientation, installation space and operating conditions suit the model.
Engineering boundary
Review scope and responsibilities
Recommendations apply only to the pump and supplied equipment within the agreed scope.
Duty Point
Flow and total head must be reviewed together; pipe size alone is not a Pump Selection basis.
CI and VI data
CI values, Pump Curves or Dimensional Drawings must not be presented as VI data, or vice versa.
Model conditions
Temperature, liquid, electrical supply, connection arrangement, control requirements and operation require model-specific confirmation.
McKarlen scope
Project-data and duty review, Pump Selection support, model recommendation, Technical Documents and pump-related installation guidance within the supply scope.
Outside McKarlen’s scope
Complete HVAC, cooling-tower, building MEP, fire-protection, civil or structural design.
Energy performance
Any quantified efficiency or consumption claim requires verified evidence for the specific project.
Documents and support
Technical Documents for the confirmed model
Documents are supplied according to the model, Duty Point and access state. Not every document is a public download.
CI / VI Catalogue
PUBLIC DOWNLOAD
Access the approved public document through the CI / VI product page.
Product Datasheet
REQUEST REQUIRED
Supplied for the confirmed model and configuration.
Pump Curve
REQUEST REQUIRED
Supplied for the confirmed model, frequency and Duty Point.
Dimensional Drawing
REQUEST REQUIRED
Supplied for the selected CI or VI configuration and model when an applicable drawing is available.
Motor Information and Accessory Recommendation
PROJECT REVIEW REQUIRED
Reviewed against the electrical supply, configuration, control requirements and supply scope.
Equipment Installation Guidance
PROJECT REVIEW REQUIRED
Pump-related guidance supplied against the piping arrangement, installation position and maintenance requirements.
Application records
Project references
Commercial buildings, hotels, hospitals and factories shown on this page are application contexts only. A record is published as a verified McKarlen equipment reference only when equipment participation, the supply or product-support scope, technical evidence and image-use rights have been approved.
Engineering knowledge
Prepare the right data before submitting an enquiry
These three entries cover the data to submit, the CI / VI selection boundary and the Technical Documents required for the confirmed model.
Required Project Data
Review flow, total head, liquid, temperature, piping, electrical supply and control requirements.
CI or VI selection logic
Review the Duty Point, piping orientation, installation space and operating conditions.
Model-specific Technical Documents
Identify when a Product Datasheet, Pump Curve, Dimensional Drawing, Motor Information or Equipment Installation Guidance is required.
Engineering FAQ
Questions to resolve before Engineering Review
The answers focus on Required Project Data, Pump Selection, Technical Documents and the responsibility boundary.
What project data are required for an HVAC & Chiller pump review?
Provide the application, design flow, total head, temperature, liquid type, piping arrangement, installation position, operating schedule, electrical supply, control requirement and any available Pump Schedule or BOQ.
When may CI or VI be considered?
CI is considered for a horizontal inline arrangement, while VI is considered for a vertical inline arrangement. The decision also depends on the Duty Point, piping arrangement, installation space, liquid and operating conditions.
Why must flow and total head be reviewed together?
Together they establish the Duty Point used to review the model and Pump Curve. Either value on its own is insufficient for confirmation.
Can a pump be selected from pipe size alone?
No. Flow, total head, system losses, temperature, liquid and operating requirements must also be reviewed.
Which Technical Documents may McKarlen provide?
Depending on the model and review state, the deliverables may include a Product Datasheet, Pump Curve, Dimensional Drawing when available, Motor Information, Accessory Recommendation and pump-related Equipment Installation Guidance.
When are the correct model documents supplied?
Documents are supplied after the Duty Point, CI or VI configuration, frequency, electrical supply and relevant project conditions have been confirmed.
Does McKarlen’s support include complete HVAC system design?
No. McKarlen supports project-data review, Pump Selection and Technical Documents within the agreed equipment supply scope. Complete HVAC, cooling-tower, building MEP, fire-protection, civil and structural design remains with the appointed consultant, designer or contractor.
Project enquiry
Do you have drawings, a Pump Schedule, BOQ or operating data?
Submit the available documents with the flow, total head, liquid, temperature, piping arrangement, installation position, electrical supply and control requirement. The technical team will review the Duty Point, identify missing inputs and define the next technical step.