3) The indoor unit quantity detected by outdoor unit will be the sum
of the actual address quantity and the virtual address quantity,
when the capacity code of independent control box is D, the setting
actual address is 5, then it will produce virtual address 6, 7 and 8,
and then the indoor unit quantity detected by outdoor unit will be 4.
4) The outdoor unit can not use auto addressing for to set the
address for the indoor unit without address, only the indoor unit has
address then can the outdoor unit to be set auto addressing;
5) When the DX AHU control box system connects to the indoor unit
centralized controller, the actual address and the virtual address
will be displayed on the centralized controller, when the capacity
code of independent control box is D, the setting actual address is
5, then the actual address 5 and virtual address 6,7 and 8 will be
displayed on the centralized controller, that is to say, it equals to
four DX AHUKZ, and the states of four indoor units will be kept in
the same;
6)The network address is the same as the indoor unit address, no
need to setting separately.
8-4-2 Several DX AHU boxes parallel
connection controlling one indoor unit
For this product, several DX AHU boxes are allowed to parallel
connect to control one indoor unit. In this case, only the master DX
AHU box needs to be set an address, this address is an actual
address. Virtual addresses will be generated in the parallel system.
8-5 The wiring figure for several DX AHU boxes parallel connection.
For several DX AHU boxes parallel connection control one indoor unit condition, the wiring figure is showing as fig.8-2.
9
installation manual
Signal wire(P
、
Q
、
E)
Fig.8-2
Outdoor unit
Outdoor unit
1# slave DX AHU
N# slave DX AHU(N
≤
3)
Shown as Table 8-3, DX AHU box with capacity dial code from 0 to
A occupy 1 address. DX AHU box with capacity dial code of B
occupies 2 addresses. DX AHU box with capacity dial code of C
occupies 3 addresses. DX AHU box with capacity dial code of D
occupies 4 addresses. DX AHU box with capacity dial code of E
occupies 5 addresses. DX AHU box with capacity dial code of F
occupies 6 addresses. The number of virtual addresses in parallel
system equals to the total number of occupied addresses by DX
AHU boxes minus one. Virtual addresses are based on actual
address and exist in the system. For several DX AHU boxes parallel
connection control one indoor unit condition, there’s only one actual
address and several virtual addresses.
Take Fig 7-6 for instance, this system is a system that 3 DX AHU
boxes are parallelly connected to control one indoor unit, e.g. 0# DX
AHU box is AHUKZ-03B and it’s capacity code is D, 1# DX AHU box
is AHUKZ-02B and it’s capacity code is B, 2# DX AHU box is
AHUKZ-01B and it’s capacity code is A. So set 0# DX AHU box as
master DX AHU box, set 1# DX AHU box as slave 1 DX AHU box,
set 2# DX AHU box as slave 2 DX AHU box. The quantity of the
addresses occupied by the set of parallel boxes is 4+2+1=7. If set
address 5 to 0# DX AHU box , then the parallel DX AHU boxes
occupy address 5
,
6
,
7
,
8
,
9
,
10
,
11. The address 6
,
7
,
8
,
9
,
10
,
11
are virtual adresses. The number of indoor units which are detected
by outdoor unit is 7 units.
If there’re several parallel DX AHU boxes systems in one
refrigerant system, take fig 8-2 for instance, please calculate the
number of occupied virtual addresses for each parallel DX AHU box
system, design the actual address of each parallel DX AHU box
system to avoid repetition of actual addresses and virtual addresses.
The actual address and virtual address should less than or equal to
63.
Master DX AHU
Master DX AHU
Signal wire(P
、
Q
、
E)
N# slave DX AHU(N
≤
3)
Signal wire (X
、
Y
、
E)
Signal wire (X
、
Y
、
E)
Signal wire (X
、
Y
、
E)
T1,T2,T2B
T1,T2,T2B
SIEMENS controller
SIEMENS controller
The signal wire between outdoor and master DX AHUKZ box
Signal wire(P
、
Q
、
E)
Signal wire (X
、
Y
、
E) The signal wire between master DX AHUKZ and slave DX AHUKZ box
1# indoor
2# indoor
Summary of Contents for SYSVRF AHU 10HP S
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