ASHRAE-90.1-2022- - Page 168

Extracted Content

Table 9.5.2.1-1 Space-by-Space Lighting Power Density Allowances and Minimum Control Requirements Using Either Method

The control functions below shall be implemented in accordance with the descriptions found within Section 9.4.1.1. For each space type:

Informative Note: This table covers common space types typically found in multiple building types. Table 9.5.2.1-2 covers building -specific space types typically found in a single building type.

LPD, Common Space Types [a] W/ft [2] RCR

Office

(1) All REQs shall be implemented. (2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.

Auto Full OFF

Daylight Response

Sidelight

Daylight Response

Toplight

Auto Reduction

(Full OFF complies)

Local Control

Manual

ON

Partial Auto ON

Multilevel

Lighting

Control

Scheduled

Shutoff

9.4.1.1(a) 9.4.1.1(b) 9.4.1.1(c) 9.4.1.1(d) 9.4.1.1(e) [ b] 9.4.1.1(f) [ b] 9.4.1.1(g) 9.4.1.1(h) 9.4.1.1(i)

Office  150 ft [2] 0.73 8 REQ ADD1 ADD1 REQ REQ

Office >150 and  300 ft [2] 0.66 8 REQ ADD1 ADD1 REQ REQ

Offices >300 ft [2] 0.56 4 REQ ADD1 ADD1 REQ REQ REQ REQ REQ

Parking Garage

Daylight transition zone 1.06 4 See Section 9.4.1.2.

All other parking and drive areas 0.11 4 See Section 9.4.1.2.

Pharmacy Area 1.59 6 REQ ADD1 ADD1 REQ ADD2 ADD2

Restroom 0.74 8 REQ

Sales Area (For accent lighting, see Section 9.5.2.2[b].) 0.85 6 REQ ADD1 ADD1 REQ REQ ADD2 ADD2

Seating Area, General 0.21 4 REQ ADD1 ADD1 REQ REQ ADD2 ADD2

Security Screening

Airport/bus/ship/train/transportation screening 0.93 6 REQ REQ REQ ADD2 ADD2

Airport/bus/ship/train/transportation screening queue 0.56 6 REQ REQ REQ ADD2 ADD2

General security screening 0.64 6 REQ REQ REQ ADD2 ADD2

Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway.

Stairwell 0.47 10 REQ REQ REQ ADD2 ADD2

Storage Room

<50 ft [2] 0.49 9 REQ REQ REQ

 50 ft [2] 0.35 6 REQ REQ

Vehicular Maintenance Area 0.59 4 REQ ADD1 ADD1 REQ REQ ADD2 ADD2

Workshop (including workshop classrooms) 1.17 6 REQ ADD1 ADD1 REQ REQ ADD2 ADD2

a. Where both a common space type and a building -specific space type are listed, the building specific space type shall apply (see Table 9.5.2.1-2 for building -specific space types) . b. Automatic daylight responsive controls are mandatory only if the space meets the requirements of the specified sections.