8
8.4.2.4 Installation procedure
There are two attachment methods.
Attaching on the Wall
Attach the PSC-5HR on the wall by using screw for wood 
as follows.
Attaching Pitch
Screw for wood
(mm)
Mounting on Suspension Bolt
Attach the PSC-5HR on the suspension bolts using clamps 
and screws.
Fasten screws xing the hook of the clamp into the attaching 
holes.
Hook here
Hook here
 Fitting Screw
 Suspension Bolt (W3/8.M10)
Suspension 
bolt
Clamp
Fitting Screw
View from Top
8.4.3  Electrical wiring
8.4.3.1 Wiring connection
 
System
Outdoor Unit
Central Station
Indoor Unit
NOTE
Four PSC-5HR can be installed as a maximum in one system.
Ensure the quantity of connections of the following:
•  Ref. System Quantity: within 16
•  Indoor Unit Quantity: within 128
•  Total Length of each divided H-Link: up to 1000 m
In the case of H-LINK is divided into ve blocks as beside gure: Set End Terminal Resistance in each PSC-5HR (For details, see ”Setting 
Dip Switch”.)
8 Control support devices
PSC-5HR
TCGB0106 rev.0 - 12/2014
733