Daikin VRV Plus Series General Information Manual page 159

Si33-003.book Page 155 Monday, June 25, 2001 9:06 AM
SiE33-003
7.6.4 Field Line Connection : Transmission Wiring and Cool/Heat Selection
7.6.5 Example of Performing Cool/Heat with Cool/Heat Selector
1
7.6.6 Example of Performing Cool/Heat Setting of Two or More Outdoor Units in Block with
Cool/Heat Selector
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.
Installation Manual
RXYP 8,10,16,20
1
X2M
A1P
A B C F1 F2 F1 F2
2
A1P
A B C F1 F2 F1 F2 A
A B C
C/H SELECTOR
2
3
F1 F2 F1 F2
4
5
F1 F2 F1 F2
6
F1 F2 F1 F2
For the wiring shown in figure 22, 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 figure 22 are field supply.
2
1
1. Switch box (Main unit)
3
2. Fix to the safety catch using the
attached clamp material
3. Attached cable (between main and
sub units)
Fig. 21
(V0873)
1. Cool/Heat selector (optional for heat
pump unit only)
2. Outdoor unit P.C. Board (A1P)
3. Take care of the polarity
4. Use the conductor of sheathed wire
B C F1 F2 F1 F2
(2 wire) (no polarity)
TO IN/D UNIT TO OUT/D UNIT
5. Terminal board (Field supply)
6. Indoor unit
TRANSMISSION WIRING
F1 F2
F1 F2
F1 F2
Fig. 22
(V0874)
1. Branch
2. Subbranching
Fig. 23
(V0875)
: http://splitoff.ru/tehn-doc.html
Field Wiring
155