Additional Lighting Controls NECB 2020

Section 4.2.2.6.(1) states:

The following lighting applications shall be controlled separately from general lighting in all spaces:

display or accent lighting,
lighting in display and merchandising cases,
lighting for non-visual applications, such as plant growth and food warming, and
lighting equipment that is for sale or for demonstrations in lighting education.

Section 4.2.2.6.(2 & 3) states:

Except for night lighting in bathrooms that does not exceed 2W, all lighting and all switched receptacles used for lighting in guest rooms and suites in commercial temporary lodgings shall be controlled so that their power supply turns off within 20 min of the space being unoccupied.
Where captive key systems are used to meet the requirements of 4.2.2.6.(2) they shall be located at the entrance to each guest room and suite.

Section 4.2.2.6.(4) states:

All supplemental task lighting, including permanently installed undershelf or undercabinet lighting, shall have a control device that is

integral to the luminaires, or
Readily accessible and located so that the occupant can see the controlled lighting.

Automatic Switching

This covers the following types

Guest Bathrooms (60 minutes)

These are automatically assigned to the reference model by the VE.

Separate Manual Switching

The following lighting types need to be controlled separately (manually switched):

Task Lighting
Guest Rooms
Hotel Suites
Display/Accent Lighting
Case Lighting
Non-Visual Lighting
Demonstration Lighting

If these lighting types are contained in the proposed model they also need to be manually included in the reference model and the following steps should be followed by the user:

Once the reference model has been generated, enter the profiles database (make sure the VE is in the ‘Reference’ view).
Create the necessary profiles to represent the additional manually switched lighting types as described above.
Create the necessary lighting gains and assign the profiles.
Assign to the relevant baseline zones.

Section 4.3.2.10.(1) states:

The factor for occupancy control F_{occ i}shall be calculated using the following equation; this includes a factor C_{occ ctrl i}to account for the occupancy sensing mechanism determined using table 4.3.2.10.-B:

With regards to the occupancy sensing mechanisms described in this table and their relationship to the occupancy sensing mechanisms in table 4.2.1.6:

Automatic full off (full on)” in table 4.3.2.10.-B is the value used for the column “automatic full off” in Table 4.2.1.6 (as option B) if option A is not used in the proposed model, in which case auto full on is assumed, and the Cocc factor would be 0.67;

Manual (on/off …) in table 4.3.2.10.-B is the same as for automatic full off (full on), as described above, but for enclosed offices less than 25m²;

Scheduled shut-off in table 4.2.1.6; there is no occupancy control factor applied for scheduled off; it is simply a possible option (B) for some space types i.e. it has no impact on the Cocc factor (only the “on” control type would affect it, i.e. manual on, or manual on in an enclosed office < 25m2);

Examples of combinations of the A & B options in Table 4.2.1.6 and selecting C_{occ ctrl i}:

For an enclosed office <= 25m2, in the reference I can use either manual on or partial automatic on (option A), AND must have automatic full off (no option B). In the scenario of partial automatic on AND auto full off, C_{occ ctrl i}would be 0.67. If however, I changed the controls to manual on with automatic full off, C_{occ ctrl i}would be 0.75;
For an enclosed office > 25m2, I can use either manual on or partial automatic on (option A), AND either of automatic full off or scheduled off (option B). If I have partial automatic on and scheduled off, the C_{occ ctrl i}factor would be 0; if I changed from scheduled off to automatic full off, the C_{occ ctrl i}would be 0.75.