Field Wiring SiE33-102
160 Installation Manual
7.6.5 Example of Performing Cool/Heat with Cool/Heat Selector
7.6.6 Example of Performing Cool/Heat Setting of Two or More Outdoor Units in Block with
Cool/Heat Selector
For the wiring shown in above figure, be sure to use 0.75-1.25 mm² vinyl cords with sheath or cables
(two-core). (Three-core cables can be used only for the cool/heat selector.) (Insulated thickness : 1mm
or more)
The wires shown in above figure are field supply.
Caution Be sure to follow the limits below. If the unit-to-unit cables are beyond these limits, it may result in
malfunction of transmission.
Maximum wiring length: 1000m
Total wiring length: 2000m
Max branches No. of branches: 16
Up to 16 branches are possible for unit-to unit cabling. No branching is allowed after branching.
Never connect the power supply to unit-to-unit cabling terminal block. Otherwise the entire system may
break down.
7.6.7 Sequential Start
Make the outdoor unit cable connections shown below.
The outdoor unit PC board (A1P) is factory set at “Sequential start available”.
ABC
A B C F1 F1F2 F2
A B C F1 F1F2 F2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
C/H SELECTOR
TO IN/D UNIT TO OUT/D UNIT
TRANSMISSION WIRING
A1P
Cool/heat selector
(optional for heat pump unit only)
Outdoor unit P.C. board (A1P)
Take care of the polarity
Use the conductor of sheathed wire
(2 wire) (no polarity)
Terminal board (Fieldsupply)
Indoor unit Take care of the polarity
(V1860)
Branch
Subbranching
(V1861)
A B C F1 F1F2 F2 A B C F1 F1F2 F2
A1P A1P
lndoor unit lndoor unit
(V1862)
Si33-102.book Page 160 Tuesday, June 26, 2001 3:18 PM
Все каталоги и инструкции здесь: http://splitoff.ru/tehn-doc.html
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