Common cylinder installation mistakes and how pre-plumbed and pre-wired cylinders can help
Installing a hot water cylinder as part of an air source heat pump system involves getting several things right.
For experienced G3 installers, many of these details will be second nature. If you're new to heat pumps and unvented cylinders, knowing where issues commonly arise can help make an installation smoother and avoid unnecessary troubleshooting later.
From pipework configuration to sensor placement, a few seemingly small details can have a big impact on how the system operates. The good news is that pre-plumbed and pre-wired cylinders can reduce some of the risks for error whilst also saving time on-site.
We’ll look closer at:
Pipework configuration errors
Incorrect coil connections
Sensor placement problems
Airlock and flushing issues
Valve and divertor mistakes
The importance of correct wiring
How pre-plumbed, pre-wired cylinders help
Pipework configuration errors
With a conventional cylinder installation, there are a number of connections to make and configure correctly. Getting the pipework arrangement wrong can result in poor system performance, difficult commissioning or time-consuming fault-finding. This is important as the cylinder forms part of the wider system rather than simply providing stored hot water.
Pre-plumbed cylinders have key hydraulic components and connections assembled as part of the cylinder. This reduces the amount of plumbing work required on-site and gives you a simplified setup that can also increase the speed of installation. Your customers might be interested in the neater, more aesthetically appealing finish, whilst the simplified process will help to minimise disruption and reduce installation time in their home. For developers, a pre-plumbed cylinder also offers a plug and play setup, creating a uniform approach across properties.
Choosing a pre-plumbed, pre-wired cylinder lets you carry out the installation with confidence and your customer is reassured that their system is designed specifically for their property’s requirements.
Incorrect coil connections
Cylinder coil connections need to be correctly identified and connected to the appropriate circuit. Getting the flow and return connections the wrong way around can affect heat transfer and reduce efficiency.
An incorrect configuration may also lead to air being trapped, causing airlocks and preventing water being reheated fully, leaving the homeowner having cooler or lukewarm water and loud rattling noises coming from within their cylinder.
Pre-plumbed cylinders have all the required connections already in place, so that mistakes associated with coil connections are removed. This also prevents the need for callbacks to resolve coil connection errors.
