9
SYSTEM Block Diagram
Item
Part
Number
Description
Comments
Monitor Model:
IR-SNIF-MCD1
IR-SNIF-MCD4
IR-SNIF-MCD8
IR-SNIF-MCD16
MCD1
MCD4
MCD8
MCD16
Sample Area
Connections:
ACC 030
410144
410357
1 to 16 sample tubes, routed to each
sample area
1 /4” OD 1/8” ID, FRPE Tube, 250 ft roll
Coarse Tube Filter
Barb Fitting for FRPE Tube
Terminate tube 12”-18” above floor
Purchased separately from monitor, or customer supplied
Included inside monitor
Included inside monitor
Reference Air
Connection:
ACC 030
410144
410357
Reference air for ‘Auto Zero’
1 /4” OD 1/8” ID, FRPE Tube, 250 ft roll
Coarse Tube Filter
Barb Fitting for FRPE Tube
Terminate tube in area free of refrigerants and interfering
chemicals (12”-18” from ceiling if indoors)
Purchased separately from monitor, or customer supplied
Included inside monitor
Included inside monitor
Power
Connection:
Field Wiring
120 or 240 VAC
50/60 hz
12 or 14 AWG
Voltage jumper selected inside monitor
Provided by customer, Install in accordance with NEC and
local codes
Valves
A
re
a
1
R
e
fe
re
n
c
e
A
ir
Area 5
Area 6
A
re
a
2
Area 4
Area 7
Area 8
Area 3
Exhaust
Re
mo
te
Lin
k
Mo
de
m
Mo
nit
or
H
o
rn
S
tr
o
b
e
C
o
m
b
o
F
ro
m
C
ir
c
u
it
B
re
a
k
e
r
To Computer
Co
nt
ro
l
Co
mm
To Phone Line
T
o
F
a
n
C
o
n
tr
o
l
Analog To BMS
Binary To BMS
Binary To BMS
(A
C
p
o
w
e
r)
(s
w
it
c
h
e
d
A
C
)
(s
w
it
c
h
e
d
A
C
)
(s
w
it
c
h
e
d
A
C
)
(s
w
it
c
h
e
d
A
C
o
r
c
o
n
tr
o
l
v
o
lt
a
g
e
)
(rs-485)
(dry contacts)
(optional individual alarm relays - control voltage only)
(0-10 vdc or optional 4-20mA)
(cat-3)
(rs-232)
(rs-232)
(s
a
m
p
le
t
u
b
e
a
n
d
f
il
te
r)
(s
a
m
p
le
t
u
b
e
a
n
d
f
il
te
r)
(s
a
m
p
le
t
u
b
e
a
n
d
f
il
te
r)
Summary of Contents for IR-SNIF-MC-1
Page 54: ...05 21 2008 ...