User manual

Retrofit Installation
30
9.4 Himod—LNA
Position the OpenComms card in the low voltage/control cavity of the
Liebert Himod unit. Refer to the drawing below for typical positioning.
Use three #8 x ½” sheet metal screws to affix mounting plate to the
Environmental unit.
Figure 12 Himod NIC-485 installation location
9.4.1 System Wiring for Himod
Two wiring harnesses are included with the retrofit kit, one for the
power connection and the second for communication. They are of suffi-
cient length for use with the Himod unit.
NOTE
Board illustrations are shown only for location of connections.
Board location and wire length may change depending upon
the specific installation.
37C38C37B38B37 38 75 76
94
95
96
97 11 12
41 42
43
44
45
46
47
48
24 50 51 55 56 84 85 82
83
88
89
91 92 93
77
78
NIC
ATTENTION
135655P1
USE COPPER
CONDUCTORS ONLY
P25
P43
TB3
TB1
110
112
110
UNPLUG STANDARD P25 HARNESS AND REMOVE
RED CONNECTOR. CUT AND STRIP WIRES
FOR INSTALLATION TO SCREW CONNECTOR
TB2 ON NIC BOARD AS SHOWN.
BLACK
RED
RED
BLACK
TB2
Item 111, manual,
to be inserted
in unit installation packet
Item 113, schematic, to be
attached to deadfront
+
-
AM/AG
CONTROL
BOARD
110
Install 2 Harnesses
provided in Item 110 Kit
P43
ONE (OR MORE) ALARM DEVICES HAS BEEN
FACTORY CONNECTED TOTHE LOCAL ALARM
INPUT TERMINALS 24 & 50
Unplug standard P43
harnesses from AM/AG
control board and
connect to harness
provided in Item 110 Kit