Fujitsu Airstage VR-II Series Service Manual page 13

1-2-5 Transmission wire installation inspection sheet 2/3
Check Item
Number of ref. circuit connected in the network system: ______, Ref. addresses: ______________(00
Transmission line
Reference:
From outdoor
unit
RB
To indoor
unit
Check Item
Number of ref. circuit connected in the network system: ______,
VRF Network
Network
System
wiring
Create one Network Segment based on the following conditions,
( * 1)
Condition -1: if the transmission line length
Condition -2: if a total number of connected units
( * 2 )
connected units mean a total of (Indoor Units + Master Outdoor Units + RB Units
* 3
( )
f or single type RB Unit, count as '0', f or multiple type RB Unit, when all ports are connected with Indoor Unit, count as '0'.
However, if one of the port of the multiple type RB Unit is not connected with Indoor Unit, at that time count as one RB Unit.
Check contents
Transmission line layout
(Between RB unit & IU)
Not Correct Layout
Example - 1
Reference:
(Piping Layout)
Not Correct Layout
Example - 2
OU
RB
RB
IU
IU IU IU
Not Correct Layout
Example - 3
Not Correct Layout
Example - 4
Check contents
Total transmission line length
Network wiring layout
No. of network segment
1640ft.(500m)
Network Convertor f or LonWorks Unit + Central RC Units + Network Convertor Units +
BACnet Gateway Unit + Signal Amplif ier Units + Service Tool Unit + Web Monitoring Tool Unit)
Judgement
Correct Layout
OU
RB
IU
RB Gr.
OU
RB
IU
OU
RB
IU
OU
RB
IU
OU
RB
IU
Judgement
Ref. addresses:_______________(00
Wiring length 11811ft.(3600m)
(Value taken from Network Design Drawing)
Do not make a loop configuration
No. of network segment
( * 1)
64 connected units
( * 2)
01-07
RB
IU IU IU
Correct
RB Gr.
Not correct
RB
If not correct, pls.
rectify the connection
IU IU IU
RB
IU
IU IU
RB
IU IU IU
RB
IU IU IU
Looped
41
( * 3 )
+ TPC Units + System Controller Units
Present Status
99)
Present Status
99)
(m)
/ Not looped