The number one reason sprinklers fail is due to closed valves. A section of a sprinkler system is usually taken offline or ‘shut off’ for planned or unplanned maintenance by closing its local valve. When we say a system is shut off, we mean a control valve is closed which stops water flow past a certain section and from ultimately reaching the sprinkler heads.

Zonecheck Retro-fit is designed to be installed on a system with existing flow-switches, two mechanical tees are fitted to either side creating a closed loop so that water can be circulated around the the flow-switch that was previously installed.

A suitable water supply should be chosen depending on the application. There are several types that can be used, a mains water supply (mains pressure only; or mains with booster pump) or stored water supply (pump supplied from a water tank; regulated pressurised vessel or gravity fed water system).

All residential buildings over 11m high must have a fire sprinkler system installed.

All valves on a system designed BS 9251 (except category 1) that control the flow of water to a system should be electrically monitored for the correct open position.

It is mandatory for systems designed to BS 9251 all flow-switches installed on a system are tested annually to determine they are functioning as designed. Zonecheck Residential can carry out this test automatically, saving 100% of the water.

All contracts to which these conditions shall apply shall in all respects be governed by and construed in accordance with the Laws of England and the purchaser hereby agrees to submit to the non-exclusive jurisdiction of the English Courts.

Goods designated as standard stock by the Company will at the Company’s discretion be accepted for return to stock subject to being in appropriate condition and to a minimum handling charge of 25% provided always that such goods were originally purchased from the Company and that prior notice of intention to return is given. In such cases the purchaser shall be obliged to provide full details of supply date and associated documentation. In all cases the Company reserve the right to refuse to repurchase goods.

Where a purchaser orders goods or materials of a type, size or quality not produced by the Company in the ordinary course of its business, the Company will use all reasonable endeavours to execute the order. If it subsequently proves impossible, impracticable or uneconomical to complete the order the Company reserves the right to cancel the contract or the incomplete balance thereof, in which event the purchaser will only be liable to pay for such part of the contract as has been performed, the purchaser will be responsible for costs of materials and labour incurred by cancellations, or design changes, once the order has been accepted.

The purchaser shall indemnify the Company against all actions, costs (including the cost of de- fending any legal proceedings), claims, proceedings, accounts and damages in respect of any infringement or alleged infringement of any paten, registered design, copyright, trade mark or other industrial or intellectual property rights resulting from compliance by the Company with the purchaser’s instructions whether expressed or implied.