 Installation and Operation Contract Boundary Clause Samples

 Installation and Operation Contract Boundary. The customer is responsible for all piping and other components necessary to connect the hydronic heating and DHW systems to the ETS at the agreed demarcation point for the service boundary on the secondary side of the heat exchangers. This demarcation point will be clearly marked on the DEU engineering drawings for the ETS. A typical example is shown in Figure 2 on page 10. DE-Ready buildings are responsible for all equipment within their building, including boilers for space heating and DHW; there is no DE demarcation point. Delineation from the DEU will be determined at time of connection to DE. DE-Ready buildings must provide full-size tees and isolation valves for future connection of the hydronic heating and DHW system to an ETS.  Preparation of Building for DE Service All customers (including both DE-Connected and DE-Ready buildings) will provide suitable space for the installation of the ETS, including space for service lines and interconnecting piping, in a mechanical room in an agreed-upon location. The ETS should generally be located at an exterior wall facing the street, in the first underground level (parkade). The ETS room shall be ventilated and maintained at a temperature between 10oC and 35ºC. A floor drain connected to the sanitary sewer system should be provided in the ETS room, as well as a domestic water source. A dedicated 15A 120V electrical service, with a lockable breaker, is required to power the ETS control panel. Allowance should be made in the Building Automation System (BAS), if applicable, to provide heating pump on/off status to the ETS control panel. If a BAS is not planned for the building then the DEU will directly monitor the heating pump on/off status via a hardwire connection. As well, one 20mm electrical metallic tubing (EMT) conduit from the ETS room to a north facing exterior wall is required for the outdoor air temperature sensor wiring. The footprint of an ETS depends on a number of factors, including customer load, number of heat exchangers, configuration of the hydronic heating and DHW systems, and specific restrictions within the customer building. Generally, a typical ETS requires between 4 and 10 m2 of floor space, with a minimum ceiling height of 2.7 m. The customer should provide a concrete housekeeping pad of the required size, on which the ETS heat exchangers are installed. The customer is responsible for the DE service line building or foundation penetration, which meets the requirements of the DEU (siz...