LOW PRESSURE PNEUMATIC TEST | Prior to Hydraulic Testing
Pneumatic Pressure Testing, in this instance, is a non-destructive test used to prove the integrity of a pipework system or vessel before conducting a hydraulic … Read More
Mechanical System
AHU | Preventative Maintenance Checklist covering Weekly to 3 Years + Download
To ensure that any air handling unit [AHU] installed is maintained, operates efficiently, and is in line with the current design requirement years after installation, … Read More
AIR HANDLING UNITS | All we need to know…
An air handling unit consists of multiple components, with its main function being the primary piece of equipment within a ventilation system, to take recirculated … Read More
AIR-COOLED CHILLER | Pre-Functional Checklist Template + Download
This air-cooled chiller checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been completed, the … Read More
CRAC UNIT | Functional Testing Example + Template
Upon completion of any new CRAC [computer room air conditioning] Unit installation or modifications to an existing unit, there will be a requirement to complete … Read More
GROUP CONTROL | CRAH & CRAC Units
Whether deploying a Hot Standby or Cold Standby strategy to condition a critical space, ‘Group Control’ will be used where multiple CRAH or CRAC Units … Read More
CRAH UNIT | Functional Testing Example + Template
Upon completion of any new CRAH [computer room air handling] Unit installation or modifications to an existing unit, there will be a requirement to complete … Read More
CRAC Unit vs CRAH Unit | What’s the difference?
The difference between a CRAC Unit System and a CRAH Unit System is how the heat is transferred and then removed/ejected from the system. A … Read More
![[049l] B-CRAH Unit Checklist Front](https://constructandcommission.com/wp-content/uploads/2021/12/049l-B-CRAH-Unit-Checklist-Front-768x512.png)
CRAH UNIT | Pre-Functional CheckList
This CRAH Unit Checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been completed, including … Read More
![[079] B-CRAH Unit Overview](https://constructandcommission.com/wp-content/uploads/2021/12/079-B-CRAH-Unit-Overview-768x512.png)
CRAH UNITS | What are they?
A CRAH unit is a critical piece of close control cooling equipment, consisting of filters, fans, coils, that is connected to chilled water/cooling water pipework … Read More
![[049k] B-CRAC Unit Checklist Front](https://constructandcommission.com/wp-content/uploads/2021/12/049k-B-CRAC-Unit-Checklist-Front-768x512.png)
CRAC UNIT | Pre-Functional CheckList
This CRAC Unit Checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been completed, including … Read More
![[078] What is a CRAC Unit](https://constructandcommission.com/wp-content/uploads/2021/12/078-B-CRAC-Front-768x512.png)
CRAC UNITS | What are they?
A CRAC unit is a critical piece of cooling equipment, consisting of filters, fans, coils, and an external direct expansion [dx] condenser, that is connected … Read More
![[071] Water monitoring till handover](https://constructandcommission.com/wp-content/uploads/2021/11/071-B-After-Flushing-Front-768x512.png)
FLUSHING & CLEANING | Monitoring after Flushing
Once the flushing and cleaning activities have been completed, including the backflushing, there will usually be a delay until the handover as other commissioning works … Read More
![[070] B-Corrosion Coupons Front](https://constructandcommission.com/wp-content/uploads/2021/11/070-B-Corrosion-Coupons-Front-768x512.png)
CORROSION COUPONS | and Coupon Rack
Made of similar metals and materials to the system components; scaling and or corrosion coupons are installed within a hydraulic system [chilled water/condenser water] to … Read More
![[049j] B-Pipework Flushing and Cleaning Checklist Front](https://constructandcommission.com/wp-content/uploads/2021/11/049j-B-Flushing-Checklist-Front--768x512.png)
FLUSHING & CLEANING | Pre-Works Check List
This flushing & cleaning pre-works checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been … Read More
![[077] B-Flushing and Chemical Cleaning Backflushing](https://constructandcommission.com/wp-content/uploads/2021/12/077-B-Backflush-Front-768x512.png)
BACK FLUSHING | Procedure & Sequence
After the system flushing steps have been completed covering the Dynamic Flush, Chemical Flush, Clean Flush, and Passivation/Inhibition, the coil flushing, previously known as ‘back … Read More
![[075] B-Flushing and Cleaning Pipework Chemical Treatment Stage](https://constructandcommission.com/wp-content/uploads/2021/11/075-B-Chemical-Front-768x512.png)
CHEMICAL CLEANING FLUSHING | Procedure & Sequence
Within the pipework cleaning and flushing process, the chemical cleaning stage will be started after the dynamic flushing has been completed successfully, with the water … Read More
![[068] Front cover for Dynamic Flushing Procedure](https://constructandcommission.com/wp-content/uploads/2021/11/068-B-Dynamic-Front-768x512.png)
DYNAMIC FLUSHING | Procedure & Sequence
The dynamic flushing stage is completed to remove the majority of the debris, dirt, and particles from inside the pipework system prior to moving on … Read More
![[067] B-Flushing and Cleaning Pipework Overview](https://constructandcommission.com/wp-content/uploads/2021/10/067-B-Flushing-Front-1-768x512.png)
FLUSHING & CLEANING | Pipework Systems Overview
Just installing new pipework for a closed-loop hydraulic system within a facility that is used for transporting heating/cooling water will not guarantee its internal cleanliness, … Read More
GENERAL PIPEWORK | Pre-Commissioning CheckList
This General Pipework checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been completed, including … Read More