The work will involve changes to the power supply and/or wiring in the church. What could be the implications for the organ?

• Where the instrument has electric or electro-pneumatic action, contractors should be made aware of any DC electric cabling under the floor which connects the console to the organ switch system. In the case of tubular pneumatic action there may be tubing or where there is mechanical action, trackers may be concealed in the floor space. In each case these items should not be disturbed without the organ builders being present.
• Great care should be taken that the DC electrical supply to the console from the transformer/rectifier is not cut. This may run separately from the multicore cable. If a contractor is uncertain if any wiring or ducting belongs to the organ, he should consult the organ builder before taking any action.
• Where there are working lights within organ or blowing chambers, these should be included when any rewiring work is being considered in consultation with the organ builders.

What other points should we consider?

• Where any structural change within a building affects the organ, the contractor should maintain contact with the organ builders and advise them when it would be safe to carry out any related work.
• Contractors should also be made aware of any wind trunking under the floor and this should also remain untouched during the duration of the contract.
• When any structural or other work has been concluded, free access to the site should be given to the organ builders to carry out any work or other items such as the repositioning of the organ console. In addition, an electrical engineer will be required if it is necessary to reconnect the AC electrical supply between the organ console and the contactor and this will be the main contractor’s sole responsibility. The engineer should ensure that he consults with the organ builders and understands the various items which an organ requires.