Installation Instructions

Installation Instructions
Document No. 546-00332
Rev. 3, September, 1999
Fume Hood Flow Module
Page 1 of 2
Product Description
If the Laboratory Room Controller (LRC) is
monitoring one fume hood, input information such as
airflow from one fume hood is provided by a Fume
Hood Controller. If the LRC is monitoring two to four
hoods, input is from a Fume Hood Flow Module
(FFM). A FFM connects up to four 0 - 10 Vdc signals
and generates a scaled voltage that represents the
sum of the fume hood flows (Figure 1).
LAB0145R2
546-00351
(SEL62.19-01)
Series A
AC24V
+
20%
2.5VA 50...60Hz
tamb: 0...50 'C
CE
Made in Switzerland
–
Fume Hood
Flow Module
Intended for use with
546-00360 product.
Figure 1. Fume Hood Flow Module.
Product Numbers
546-00351 Fume Hood Flow Module
Required Tools
•
Dry wall screws*
•
Small flat-blade screwdriver*
•
Four #6 screws by 3/4-inch*
•
Controls enclosure*
* Not included
Expected Installation Time
25 minutes for two hoods
45 minutes for four hoods
Instructions
1. Using the appropriate screws or anchors, mount
the FFM on either a flat wall near the LRC or on
the terminal box.
2. Connect the wires from terminals 17 and 18 of
the LRC to the FFMs G0 and Y91 terminals
respectively. See Figure 2.
3. Connect two to four Fume Hood Controllers to
the FFM. See Figure 2.
4. Connect a certified 24 Vac Class II power
source to the FFMs power supply.
N
NN
NO
OO
OT
TT
TE
EE
E:
::
:
If electronic actuation is used, the FHC
and LRC must be powered by a separate
power trunk from the FFM and any 0 – 10
Vdc actuator used by the LRC. The Lab
Controls Electronic Actuator Assemblies
ban be on the same power trunk as the
FHC, LRC or on a separate transformer.
The installation is now complete.