Honeywell Xtralis FAAST FLEX FLX-010 Product Manual page 60

FAAST FLEX Product Guide
Piping Design "I" pipe - Single Channel (FLX-010):
Example:
1. Verification of project constraints and determination of aspirator speed
E Exhaust pipe
F First hole
L Last hole
PL Pipe length with low speed
with high aspirator speed
N Number of holes
2. Calculate nominal step between holes and hole position deviation form nominal
S = L / ( Number of holes – 1 ) = 40 / 8 = 5 m (≥2.5m)
–
± 0.2*5m = ±1m
3. Determination of necessary Sensitivity Level and the hole diameters
Number of Holes
Aspirator speed, max 80m for H and 50m for L
Alarm Level Class C with/without filter
Alarm Level Class B with/without filter
Alarm Level Class A without filter only
53
I-pipe network, Class C with In-line filter
Exhaust pipe of 10m (E), First hole at 20m (F), Last hole at 40m from the first hole (L), 9 holes
Required
10m
20m
40m
10+20+40=70m
9
vity Le hole d
2
2
H/L
Low
High
High
Rules
≤ 29 m
1 ÷ 30m-E
≤ 50 m
≤ 80 m
See Table 1
3
3 4 5
H/L H/L H/L
Low Low Medium
High High High
High High -
6 7 8
H/L H/L H/L
Medium Medium Medium
High High High
- - -
FAAST FLEX
1
9
H/L
Medium
2
High High
-
3
www.xtralis.com