LG ARNH963K2A2 Installation Manual page 39

Communications Cable Between a Single Hydro Kit and a Unit Controller
Guidelines and recommendations
• Only use LG provided three-core communications cable (provided
with the Hydro Kit) and the Unit Controller. Using field provided
cable may cause communications errors.
• Set the Hydro Kit operating parameters using DIP switches or by
setting up the Unit Controller.
NEVER splice, cut, or extend cable length with field provided cable. If the
length needs to be extended, use one (or more) 39 foot LG Cable Exten-
sion Kit (PZCWRC1) (sold separately). The maximum length of the cable
cannot exceed 164 feet.
Communications Cable Between a Multiple Hydro Kit Units and the Unit Controller
Although up to 16 Hydro Kits can be linked together and controlled as one
group. All Hydro Kits must be of the same model type. Do not mix K2 and
K3 models on the same communication cable! See Figure 32.
On All Hydro Kit Models
On All Hydro Kit Models
CN-REMO
LG
Supplied
LG Supplied Group Control Kit (PZCWRCG3)
Zone Controller
Figure 32: Communication Cable - Multi Hydro Kits to Unit Control
On All Hydro Kit Models
CN-REMO CN-REMO
Due to our policy of continuous product innovation, some specifications may change without notification.
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Communications Cables
Figure 31: Communication Cable -
Single Hydro Kit to Unit Control
• During roughing in the unit,
the female socket MUST BE
positioned at the Hydro Kit
Unit Controller location.
• The male plug-end of the com-
munications cable must be lo-
cated at the Hydro Kit indoor unit.
• Do not cut cable or extend cable
length. Violating these rules may
cause communications errors.
NEVER splice, cut, or extend cable length with field provided cable. If the
length of the cable between grouped units is greater than 32 feet, extend
the length using LG Extension Kit 39' cable ( PZCWRC1 sold separately)
must be used. The maximum length of the cable cannot exceed 164 feet.
Guidelines and recommendations
• If any Hydro Kits are to operate together in a group, use one (or
multiple) three-core Group Control Kits (sold separately) containing
extension and Y-splitter cables. One (1) group control cable kit for
each Hydro Kit in the group except for the last indoor unit.
• Always use an LG provided group control communications cable
(Group Control Kit; sold separately) between the Hydro Kit and the
Unit Controller. Field provided cable will result in communications
errors.
• Before running cable, decide which Hydro Kit will be the "Master."
The Hydro Kit Unit Controller cable will be routed and connected to
this master unit.
• Identify each Hydro Kit unit operating as a group as "Master" or
"Slave". Adjust the pertinent DIP switch at each indoor unit.
• Use a daisy chain configuration and connect all of the group's Hydro
Kits together starting at the "Master" unit as shown in Figure 32.
rouGHING-IN
On All Hydro Kit Models
CN-REMO
LG Supplied
Y L B K
R D
Unit Controller
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