Ene11 Installed controls

(4 credits)

Aim

To reduce operational energy consumption and associated carbon emissions by installing appropriate controls to reduce unnecessary energy consumption (waste).

Question

1. Are there internal temperature controllers in individual rooms or zones? 
2. Can the output from the heat generator and cooling generator be modulated?
3. Does the system have an interlock control? 
4. Can the air flow be controlled at room level? 
5. Is the supply air temperature controlled?
6. Is the air humidity controlled?

Credits	Question	Select a single answer	Points awarded	Points available
*	1	Asset does not have both heating and cooling	Filtered	0
		Yes, with communication between controllers	3	3
		Yes, by thermostatic values or an electronic controller	2	3
		No	0	3
*	2	Asset does not have both heating and cooling	Filtered	0
		Indoor temperature control	3	3
		Outside temperature compensation control	2	3
		No control	0	3
*	3	Asset does not have both heating and cooling	Filtered	0
		Total interlock	3	3
		Partial interlock	2	3
		No interlock	0	3
*	4	No mechanical ventilation or heating or cooling distributed by air	Filtered	0
		Demand or presence dependent air flow control at room level	3	3
		Time dependent air flow control at room level	2	3
		No air flow control at room level	0	3
*	5	No heating or cooling distributed by air	Filtered	0
		Variable set point with load compensation of supply air temperature	3	3
		Variable set point with outdoor temperature compensation of supply air temperature	2	3
		Constant set point for supply air temperature	1	3
		No control of air supply temperature	0	3
*	6	No humidification provided in the asset	Filtered	0
		Room or exhaust or supply air humidity control	3	3
		Supply air humidity limitation	2	3
		No air humidity control	0	3

Methodology

Credit allocation

Credits are based on the percentage of points achieved against number of points available as follows;

Table 19: Allocation of credits

Percentage of available points achieved	Credits
≥ 20%	1
≥ 40%	2
≥ 60%	3
≥ 80%	4

Evidence

Criteria	Evidence requirement
-	The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.
All	Visual inspection and verification through photographic evidence of controls.
All	All remote control must be via an accessible device.
All	Extract of relevant O&M manuals or copy of manufacturer information.

Definitions

Appropriate controls:

These include separate or integrated controls associated with individual building servicing systems and appliances as well as building management system (BMS) and remote-control devices e.g., via a smartphone app.

Interlock control:

This control prevents the heating system operating when the cooling system is operating and vice versa.

Accessible device:

Devices are accessible if they link with a web or mobile interface that meet the WCAG2.0 (ISO/IEC 40500) accessibility standards (www.w3.org;www.iso.org).

Where the above is not met, (e.g. only a visual display unit is installed), a device must have been installed that meets an equivalent level of accessibility to ensure it is usable by people with disabilities.

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