Test Operation
Si33-105
118
Test Operation R407C PLUS Series Heat Recovery System
1.5
Sequential Start
!
Separates path timing of commercial power supply compressors by 3 seconds each in order
to prevent overcurrent when more than 1 compressor are to be started at the same time.
!
Improved wiring system enables sequential start of up to 10 outdoor units.
If you want to carry out sequential start, connect outdoor unit - outdoor unit transmission wiring
as shown below.
The outdoor unit PC board (EC) is factory set to “sequential start ON.”
In the case of power supply in the same line
(8. 10HP outdoor unit)
Power supply
Power supply
Power supply
Power supply
(System 8)
(System 1)
(System 7) (System 6)
(System 5)
(System 4)
(System 3)
Power supply
RSXY
R407C
VRV
PLUS
Master
Sub
Power supply
(System 2)
Master
Sub
Wir
ing betw
een outdoor unit
(VL123)
Heat
recovery
Summary of Contents for R407C PLUS
Page 1: ...System R407C PLUS Series Heat Recovery System Si33 105 Service Manual ...
Page 11: ...Introduction Si33 105 x ...
Page 41: ...Specifications Si33 105 30 Specifications R407C PLUS Series Heat Recovery System ...
Page 147: ...Test Operation Si33 105 136 Test Operation R407C PLUS Series Heat Recovery System ...
Page 263: ...Si33 105 iv Index ...