We will pay for direct damage to Covered Property caused by an Accident to an Object.  The Object must be:

1. Owned by you or in your care, custody or control; and
2. At the described premises.

None of the following is an Accident:

1. Depletion, deterioration, corrosion or erosion;
2. Wear and tear;
3. Leakage at any valve, fitting, shaft seal, gland packing, joint or connection;
4. Breakdown of any vacuum tube, gas tube or brush;
5. Breakdown of any electronic computer or electronic data processing equipment;
6. Breakdown of any structure or foundation supporting the Object or any of its parts;
7. The functioning of any safety or protective device; or
8. The explosion of gases or fuel within the furnace of any Object or within the flues or passages through which the gases of combustion pass.

1. Boiler and Pressure Vessels:
1. Steam heating boilers and condensate return tanks used with them;
2. Hot water heating boilers and expansion tanks used with them;
3. Hot water supply boilers;
4. Other fired or unfired vessels used for maintenance or service of the described premises but not used for processing or manufacturing;
5. Steam boiler piping, valves, fittings, traps and separators, but only if they:
1. Are on your premises or between parts of your premises;
2. Contain steam or condensate of steam; and
3. Are not part of any other vessel or apparatus;
4. Feed water piping between any steam boiler and a feed pump or injector.
2. Air Conditioning Units – Any air conditioning unit that has a capacity of 60,000 Btu or more, including:
1. Inductors, convectors and coils that make use of a refrigerant and form part of a cooling, humidity control or space  heating system;
2. Interconnecting piping, valves and fittings containing only a refrigerant, water, brine or other solution;
3. Vessels heated directly or indirectly that:
1. Form part of an absorption type system; and
2. Function as a generator, regenerator or concentrator;
4. Compressors, pumps, fans and blowers used solely with the system together with their driving electric motors; and
5. Control equipment used solely with the system.

• As Boiler and Pressure Vessels:
• Equipment that is not under internal vacuum or internal pressure other than weight of contents;
• Boiler settings;
• Insulating or refractory material; or
• Electrical, reciprocating or rotating apparatus within or forming a part of the boiler or vessel.
• As Air Conditioning Units, any:
• Vessel, cooling tower, reservoir or other source of cooling water for a condenser or compressor, or any water piping leading to or from that source; or
• Wiring or piping leading to or from the unit.