Our theoretical two storey building (which we introduced in the previous columns), has a floor area of 160m2 per floor, with open plan and cellular offices and separate tenants per floor.
For its efficiency and flexibility, we have selected a VRF heat recovery system, in this instance our VR-II has been selected.
He, or she, will also need to know what will be delivered to site and when, and, at what stage other trades will have to get their part of the project up to before you can begin.
With all of the above complete the installation can begin, but before any tools come out of the van, planning the job is vital for a smooth process.
- Pipe runs
- Condenser location
- Indoor units location
- Other trade services
- Lifting equipment (if required)
- Health and safety requirements
Often with new builds such as this, the ceiling has yet to be installed so the cassettes will be hung and adjusted at the end to be level with the ceiling grid.
As this theoretical installation is a heat recovery system, refrigerant branch boxes will also need to be installed in relation to the relevant indoor unit. A pipework schematic will be issued to help the installer lay out his pipework and install relevant separation tubes (see illustration below).
- Final pipework connections completed
- Communication cable pulled in and connected.
- Drains installed
- Levelling of indoor units
- Grilles installed
- Remote controllers installed
In the next column we will look at commissioning, always more of an issue than you may expect, but something that manufacturers can help you with.