Heating and Hot Water Systems
Failure Event | |||||||
Heating and Hot Water Systems58 | 42 | Space heating and water heating within an apartment are to be capable of independent operation and available 24 hours per day, controlled both on a whole apartment and room by room basis. | Space and water heating not capable of independent operation. Inability of tenants to control system on a room by room and on a whole apartment basis. | Y | 3 | None | Yes |
43 | To provide and maintain an operable space heating system free from leaks (whether water, liquid, gas or solid materials). | Space heating within a Zone not working. | Y | 1 | Permissible up to 3 days | Variable 59 | |
44 | Leaks on a water pipe, tank, cylinder, boiler, fitting or valve. | Y | 14 | None | Yes | ||
45 | Where the external air temperature is -1oC or above the heating system will be capable of reaching 21oC within 45 minutes of being cold without the use of any secondary source of heat. | Failure to heat one or more Zones to the required minimum temperature within the required time. | Y | 1 | Permissible up to 20 days | Yes | |
46 | Every Zone to be provided with domestic hot water at all appropriate outlets as follows: • Where provided from a storage system, the delivery of 135 litres at a temperature of 60°C. The water heating system shall provide a maximum recovery from ambient external temperature to 60°C of 45 minutes (all as verified by manufacturer's specification). Where Zones are smaller or larger than average, a suitably sized hot water storage tank is to be provided appropriate to the size of the Zone. • Where hot water is provided by a combi system or similar, a minimum delivery of 12 litres per minute at a temperature increase of at least 35°C from incoming (as verified by manufacturer's specification). | Failure to meet domestic hot water temperatures required at designated outlets | Y | 1 | Permissible up to 3 days | No | |
47 | Loss of ability to control flow of hot and cold water at outlets. | Y | 4 hours | Permissible up to 4 days | Yes | ||
48 | Every Zone to be provided with a continuous supply of drinking water at an outlet in the kitchen and bathroom. | Loss of continuous supply of drinking water to kitchen and/or bathroom. | Y | 1 | Permissible up to 4 days | No |
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58 This section may require review and amendment to reflect proposed heating systems. No consideration is given to focal point heat sources – standards for these may require introduction as appropriate to Contractors designs.
59 It is suggested that Unavailable but Used deductions will apply during the period 21 March to 20 September inclusive, but will not apply during the period 21 September to 20 March. Provision for Temporary Rectification to heating failure events must be made by the Contractor to any Zone in which the main source of heating is incapable of meeting the standards set out for 2 Hours or more and there is no operable secondary source of heating at least to one living room (i.e. a room that is not the kitchen, bathroom, bedroom, storage or corridor area).