Current Energy Leakages in Egyptian Buildings - Energy Efficiency in the Urban Environment - page 229

TABLE 9.10
Energy Recovery Requirement (SI)

% Outside Air at Full Design Flow

≥10%
and
<20%

≥20%
and
<30%

≥30%
and
<40%

≥40%
and
<50%

≥50%
and
<60%

≥60%
and
<70%

≥70%
and
<80% ≥80%

Design Supply Fan Flow L/s

Zone

3B, 3C,
4B, 4C,
5B

NR NR NR NR NR NR ≥2360 ≥2360

1B, 2B, 5C NR NR NR NR ≥12,271 ≥5663 ≥2360 ≥1888

6B NR ≥10,619 ≥5191 ≥2596 ≥2124 ≥1652 ≥1180 ≥708

1A, 2A,
3A, 4A,
5A, 6A

≥14,158 ≥6135 ≥2596 ≥2124 ≥1652 ≥944 ≥472 >0

7, 8 ≥1888 ≥1416 ≥1180 ≥472 >0 >0 >0 >0

Variable Speed Fan Control for Commercial Kitchen Hoods
In addition to the requirements in Section 6.5.7.1 of ASHRAE/IESNA
Standard 90.1 [5], commercial kitchen Type I and Type II hood systems
shall have variable speed control for exhaust and make-up air fans to
reduce hood airflow rates at least 50% during those times when the cook-
ing equipment is under no-load conditions.

Duct Insulation
Duct insulation shall comply with the minimum requirements in Tables 9.11
and 9.12 [6].

Pipe Insulation
Pipe insulation shall comply with the minimum requirements in Table 9.13 [5].
These requirements supersede the requirements in Table 6.8.3 of ASHRAE/
IESNA Standard 90.1 [5].

Automatic Control of HVAC in Hotel/Motel Guest Rooms
A minimum of one of the following control technologies shall be required
in hotel/motel guest rooms with over 50 guest rooms such that all the
power to the lights and switched outlets in a hotel or motel guest room
would be turned off when the occupant is not in the room and the space
temperature would automatically setback (winter) or set up (summer) by
no less than 20°C:

1. Controls that are activated by the room occupant via the primary
room access method — key, card, deadbolt etc.

2. Occupancy sensor controls that are activated by the occupant's pres-
ence in the room.