Pipe Installation - Honeywell Notifier FAAST LT NFXI-ASD Series Quick Installation Manual

Figure 7: Sequence (1 to 9) to Mount the Detector on the Bracket
7a
7b
4
0.00
o
7c
6
7
7d
N200-102-00
1
99 mm
41
mm
2
90 mm
5
3
329 mm
8
9
Pipe Hole Configuration
Figure 8 below shows the pipe holes available on the unit. Each
unit has 2 pipe holes per channel (so if installing a 1 channel unit,
holes 3 and 4 do not function). Use Table 1 to locate the holes
required for the installation:
Figure 8: Pipe Holes
Table 1: Pipe Holes Used for Each FAAST LT Model
FAAST LT MODEL
NFXI‐ASD11 1 & 2, or 1 or 2
NFXI‐ASD12 1 & 2, or 1 or 2
NFXI‐ASD22 Channel 1 ‐ 1 & 2, or 1 or 2
Channel 2 – 3 & 4, or 3 or 4
Note 1: Pipe holes not used should be kept sealed.
Note 2: Do NOT glue pipes into the pipe holes.
Table 1a: Maximum Number of Pipe Holes Allowed Per Channel
for EN54-20 Compliance
All figures quoted using highest (level 1) sensitivity.
CLASS PIPE LENGTH
(m)
C 100
B 100
A 80

Pipe Installation

1
3
1 2
5
INLET PIPE HOLE OUTLET PIPE HOLE
5
6
5
6
MAX NUMBER OF HOLES PER
CHANNEL
18 (10 x 2.5mm, 8 x 3mm) + 3mm
non sensing end hole)
6 (4 x 4mm, 2 x 5mm inc end hole)
3 (1 x 5mm, 2 x 6mm inc end hole)
2
3 4
6
I56-3947-200