2. M-NET control
SYSTEM DESIGN
250
2-2. Transmission cable specifications
Check the existing wires for damage to insulation by measuring the resistance between the lead and the ground with a 500V
ohmmeter. If the insulation resistance is less than 100 M
Ω
, replace the wires.
Disconnect all controllers before measuring insulation resistance to avoid controller damage.
Note: Disconnect the system controller before starting a refrigerant oil recovery operation, if one is connected.
Reconnect the system controller after the completion of the refrigerant oil recovery operation.
Type of cable
Cable size
Remarks
Sheathed 2-core cable (unshielded)
CVV
2
Shielding wire (2-core)
CVVS, CPEVS or MVVS
Transmission cables
ME Remote controller cables
CVVS, MVVS : PVC insulated PVC jacketed shielded control cable
CPEVS :
Connected with simple remote controller.
PE insulated PVC jacketed shielded communication cable
CVV : PV insulated PVC sheathed control cable
—
Max length : 200m [656ft]
(L
i
)
MA Remote controller cables
When 10m [32ft] is exceeded, use cables with
the same specification as transmission cables.
More than 1.25 [AWG16]
2
0.3 1.25 [AWG22 16]
(0.75 1.25 [AWG18 16])
2
2
0.3 1.25 [AWG22 16]
(0.75 1.25 [AWG18 16])
Содержание PUHY-RP-Y(S)JM-B
Страница 1: ...DATA BOOK AIR CONDITIONERS MODEL PUHY RP Y S JM B PURY RP YJM B ...
Страница 3: ......
Страница 63: ...60 OUTDOOR UNITS ...
Страница 191: ...188 INDOOR UNITS ...
Страница 243: ...240 SYSTEM DESIGN ...
Страница 287: ...284 SYSTEM DESIGN ...