Common use of  Installation and Operation Contract Boundary Clause in Contracts

 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 (size of opening, etc.) The exact location of the penetration will be agreed upon by the customer and DEU. The DEU will produce a penetration drawing during the detailed design stage. DE-Connected building penetrations may be core drilled (after foundation construction) or sleeved (during foundation construction). DE-Ready buildings will have cored penetrations installed at the time of DE connection. The DE utility installs the service line and seals the opening. The DEU may also install one or more plastic (PVC or PE) conduits into the customer building to facilitate remote communication with the ETS. Communication allows for remote controls and monitoring of the ETS, as well as remote reading of the energy meter. The customer is also responsible for providing and maintaining the penetration for communication conduit(s). The DEU will require uninterrupted access to the ETS and service line within a customer’s building for installation, regular maintenance and repairs. This may be defined by an easement with UBC or a service contract directly with the DEU.  Hydronic Heating Water Quality & Expansion Building owners are responsible for filling and managing their own building hot water heating system. The DEU requires that water treatment for the building system meet the minimum criteria set forth below: Chloride: < 30 ppm Nitrate: < 5% Hardness: < 2 ppm pH Level: 9.5-10 Iron < 1 ppm The customer shall employ the services of a water treatment subcontractor to provide the necessary chemicals, materials and supervision for a complete cleaning and flushing of all piping to the ETS demarcation point. ETS start-up and commissioning will only occur after acceptable water quality analysis results have been obtained. Certification from the water treatment contractor verifying that the water quality is adequate is required before the customer can flow water through the ETS. Upon request by the customer, and with suitable compensation, the ongoing water quality may be maintained by the DEU. Building owners will manage the expansion of the water in their own hot water system(s).  Commissioning Prior to commissioning of the ETS, the building owner shall flush and clean the building's internal hot water system. During commissioning, the building operator is responsible for the building's internal hot water system.  Changes to the Building System The Customer shall not materially change the design or substitute any pertinent equipment during the installation without approval from the DEU. After commissioning, any changes to the building's hydronic or DHW system that may impact DEU performance shall be reported to the DEU.  DE-Ready Buildings DE-Ready buildings are responsible for design, installation, commissioning, operation, and maintenance of all systems within their building, including all boilers. The DEU has no responsibilities within DE-Ready buildings.

 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 (size of opening, etc.) The exact location of the penetration will be agreed upon by the customer and DEU. The DEU will produce a penetration drawing during the detailed design stage. DE-Connected building penetrations may be core drilled (after foundation construction) or sleeved (during foundation construction). DE-Ready buildings will have cored penetrations installed at the time of DE connection. The DE utility installs the service line and seals the opening. The DEU may also install one or more plastic (PVC or PE) conduits into the customer building to facilitate remote communication with the ETS. Communication allows for remote controls and monitoring of the ETS, as well as remote reading of the energy meter. The customer is also responsible for providing and maintaining the penetration for communication conduit(s). The DEU will require uninterrupted access to the ETS and service line within a customer’s building for installation, regular maintenance and repairs. This may be defined by an easement with UBC or a service contract directly with the DEU.  ▪ Hydronic Heating Water Quality & Expansion Building owners are responsible for filling and managing their own building hot water heating system. The DEU requires that water treatment for the building system meet the minimum criteria set forth below: Chloride: < 30 ppm Nitrate: < 5% Hardness: < 2 ppm pH Level: 9.5-10 Iron < 1 ppm The customer shall employ the services of a water treatment subcontractor to provide the necessary chemicals, materials and supervision for a complete cleaning and flushing of all piping to the ETS demarcation point. ETS start-up and commissioning will only occur after acceptable water quality analysis results have been obtained. Certification from the water treatment contractor verifying that the water quality is adequate is required before the customer can flow water through the ETS. Upon request by the customer, and with suitable compensation, the ongoing water quality may be maintained by the DEU. Building owners will manage the expansion of the water in their own hot water system(s).  ▪ Commissioning Prior to commissioning of the ETS, the building owner shall flush and clean the building's internal hot water system. During commissioning, the building operator is responsible for the building's internal hot water system.  ▪ Changes to the Building System The Customer shall not materially change the design or substitute any pertinent equipment during the installation without approval from the DEU. After commissioning, any changes to the building's hydronic or DHW system that may impact DEU performance shall be reported to the DEU.  ▪ DE-Ready Buildings DE-Ready buildings are responsible for design, installation, commissioning, operation, and maintenance of all systems within their building, including all boilers. The DEU has no responsibilities within DE-Ready buildings.