Daikin AGZ Посібник з монтажу та обслуговування - Сторінка 8
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Installation and Mounting
The following section describes how to field install a new
L
W
communication module or replace an existing
on
orks
module on the MicroTech III chiller unit controller.
CAUTION
Electrostatic discharge hazard . Can cause equipment
damage .
This equipment contains sensitive electronic components that may
be damaged by electrostatic discharge from your hands. Before you
handle a communication module, you need to touch a grounded object,
such as the metal enclosure, in order to discharge the electrostatic
potential from your body.
WARNING
Electric shock hazard . Can cause personal injury or
equipment damage.
This equipment must be properly grounded. Only personnel
knowledgeable in the operation of the equipment being controlled must
perform connections and service to the unit controller.
Field Installation Kit
The L
W
communication module field-installed kit ships
on
orks
with the following items:
• The L
W
communication module
on
orks
• Board-to-board connector -
• This Manual (IM 968)
Installing a new Communication Module
Follow these steps to install a L
module on the unit controller. The communication module
can be connected directly to the unit controller itself or to an
existing module, if one is attached.
1. Set the Unit On/Off Switch to "Off" from inside the control
panel of the unit. This must be done prior to installing
a new communication module. See
location.
IM 968-4 • MICROTECH III CHILLER UNIT CONTROLLER
Figure 6
W
communication
on
orks
Figure 7
for switch
Figure 7: Chiller Unit Controller On/Off Switch
Unit On/Off
Switch
2. Remove power from the unit controller.
3. Carefully remove the blue plastic knockout strip on
the far left end of the unit controller itself (or additional
module, if present).
Figure 8
after it has been removed from the unit controller.
To prevent damage to the unit controller, insert a
small flathead screwdriver or similar tool into the
tab on the bottom of the unit controller and pull the
screwdriver away from the controller.
4. Carefully remove the blue plastic knockout strip on the
right side of the L
W
on
Figure 8: Communication Module and Knockout
Board-to-board connector
Knockout
Slot in module must line up
permanently
with baffle in the board-to-
removed
5. Insert the board-to-board connector into the L
communication module. Note that it only fits one way and
that the baffles must line up with corresponding slots in
L
W
communication module and the unit controller
on
orks
(Figure 8
and
Figure 9
8
I
nsTaLLaTIon
shows the knockout strip
communication module.
orks
board connector
W
on
).
www.DaikinApplied.com
I
nsTaLLaTIon
orks