22
installation & owner’s manual
8.1.2 Failure information and code
In case the unit runs under abnormal condition, failure protection
code will display on both control panel and wired controller, and the
indicator on the wired controller will flash with 5Hz. The display
codes are shown in the following table:
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Code
Reason
Water flow detection error (The third time)
Power phase sequence error
Communication error
Total water outlet temperature sensor error
Pipe temperature sensor in condenser A error
Pipe temperature sensor in condenser B error
Outdoor ambient temperature sensor error or power supply protection
Low pressure protection System A
Low pressure protection System B
High pressure or air discharge temperature protection in system B
Current protection in system A
Current protection in system B
Condenser high temperature protection in system A
Condenser high temperature protection in system B
System freeze-proof protection
System A is air discharge temperature protection in digital compressor
Wire control did not found out any on-line module unit.
Wire control and module unit communication error
Wire control and computer communication error
Error of the Air Exhaust Temp. Sensor at Digital Compressor
Water flow detection error (The first and second times)
High pressure or air discharge temperature protection error in system A
Main unit detect that auxiliary unit’s quantity have decreased.
Freeze-proof temperature sensor 1 in double-pipe heat exchanger error
Outlet water temperature sensor in double-pipe heat exchanger error
1-hour consecutive 4-times PE protection
Inlet water temperature sensor error
Low-temperature protection of double-pipe heat exchanger
Wire controller failure
Failure of reduction of wired controller number at
parallel connection of multiple wired controller
(reserved)
29
31
8.1.3 Ordinary displayed data
a. Ordinary displayed data are displayed in all display pages.
b. If the unit system is under running state, i.e. one or more than
one modular unit is under running operation, there will be a
dynamic display of . If the system is under OFF state, there
is no display.
c. If the communication with the main unit modular unit is
normal, it displays . There will be no display under the failure
state of main unit communication connection.
d. If it is under the host computer network control, Network ON
displays, otherwise there is no display.
e. If it is under wired controller locked or button locked state, it
displays the lock mark. There will be no display after
the lock is unlocked.
The data display area is divided into Up area and Down area,
with two groups of two-digit half 7-segment digital display,
respectively.
a.Temperature display
Temperature display is used for displaying the total outlet water
temperature of unit system, outlet water temperature of plate
heat exchanger, condenser pipe temperature T3A of system A,
condenser pipe temperature T3B of system B, outdoor
environmental temperature T4, and setting temperature Ts, with
allowable data display scope -15
ć̚
70
ć
. If the temperature is
higher than 70
ć
, it is displayed as 70
ć
. If there is no effective
date, it displays “--” and indication point
ć
is on.
b. Current display
Current display is used for displaying modular unit system A
compressor current IA or system B compressor current IB, with
allowable display scope 0A~99A. If it is higher than 99A, it is
displayed as 99A. If there is no effective date, it displays “--” and
indication point A is on.
c. Load rate display
Load rate display is used for displaying the total load rate of unit
system or the modular unit system A compressor, with allowable
display scope 0%~100%; the load rate of the fixed speed
compressor is only 0% (shutdown) or 100%(startup).
d. Failure display
It is used for displaying the total failure warning date of unit or
that of modular unit, with failure display scope E0~EF, E
indicating failure, 0~F indicating failure code. “E-“ is displayed
when there is no failure and indication point # is on at the same
time.
e. Protection display
It is used for displaying the total system protection data of unit or
the system protection data of modular unit, with protection
display scope P0~PF, P indicating system protection, 0~F
indicating protection code. “P-“ is displayed when there is no
failure and indication point # is on at the same time.
f. Unit number display
It is used for displaying the address number of the currently
selected modular unit, with display scope 0~15 and indication
point # is on at the same time.
g. Display of online unit number and startup unit number
They are used for displaying the total online modular units of the
whole unit system and the number of the modular unit under
running state, respectively, with display scope 0~16.
Table 8-1
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EA
Eb
EC
ED
Ed
EE
EF
P0
P1
P2
P3
P4
P5
P6
P7
P8
Pb
PE
F1
F2
8.1.4 Treatment of display data
29
30
P9
PA
Protection of outlet and inlet water temperature difference
Low ambient temperature drive-up protection
22
installation & owner’s manual
8.1.2 Failure information and code
In case the unit runs under abnormal condition, failure protection
code will display on both control panel and wired controller, and the
indicator on the wired controller will flash with 5Hz. The display
codes are shown in the following table:
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Reason
Code
29
31
8.1.3 Ordinary displayed data
a. Ordinary displayed data are displayed in all display pages.
b. If the unit system is under running state, i.e. one or more than
one modular unit is under running operation, there will be a
dynamic display of . If the system is under OFF state, there
is no display.
c. If the communication with the main unit modular unit is
normal, it displays . There will be no display under the failure
state of main unit communication connection.
d. If it is under the host computer network control, Network ON
displays, otherwise there is no display.
e. If it is under wired controller locked or button locked state, it
displays the lock mark. There will be no display after
the lock is unlocked.
The data display area is divided into Up area and Down area,
with two groups of two-digit half 7-segment digital display,
respectively.
a.Temperature display
Temperature display is used for displaying the total outlet water
temperature of unit system, outlet water temperature of plate
heat exchanger, condenser pipe temperature T3A of system A,
condenser pipe temperature T3B of system B, outdoor
environmental temperature T4, and setting temperature Ts, with
allowable data display scope -15
ć̚
70
ć
. If the temperature is
higher than 70
ć
, it is displayed as 70
ć
. If there is no effective
date, it displays “--” and indication point
ć
is on.
b
b
b.
Cur
r
r
ren
ren
n
n
n
n
n
n
t d
t
t
t
t
t
t
t
isp
p
p
p
lay
l
y
lay
y
Curren
n
nt d
d
d
d
isp
sp
sp
sp
sp
sp
sp
sp
la
a
a
ay
i
i
is u
u
us
u
u
u
u
ed
d
d
d
d
d
d
d
d
for
or
or
or
or
or
r
disp
p
p
play
y
y
ying mo
o
o
odu
u
u
ular unit
it
it
it
it
it
i
it
t
sy
y
y
y
y
y
y
y
y
st
st
st
ste
st
st
st
s
m
m
m A
m
m
m
m
m
co
o
o
compr
r
resso
so
so
o
o
o
o
o
r c
c
r c
r c
r c
c
c
u
u
u
urr
u
u
u
u
e
e
e
ent IA
A
A
A
A
A
A
A
or
or
or
or
or
or
or
or
o
sy
ste
st
st
st
st
st
s
s
m
m
m
B
compr
r
r
r
ess
ess
ess
sor curren
n
n
n
n
n
n
t I
t
t
t
t
t
B,
B
B,
B
B,
B
B
B
B
with
all
all
l
owa
a
able
e
e di
i
sp
spl
sp
sp
sp
sp
sp
s
ay
y
y
y sco
co
co
co
co
c
c
c
c
pe
pe
pe
pe
pe
p
pe
pe
0A~
0A~
0A~
A~
0A~
0A~
0A~
0
99A
99A
99A
99A
9
9
9
. I
f
f it is h
h
h
hig
h
her than 9
9
99A
A
A, it is
di
dis
di
played
d
d
d
as 99
99
9
9
9
9
A
A
A
A.
A
A
If there
re
re
re
e
e
is
is
is
is
is
is
i
no eff
f
f
ff
f
ff
ective da
t
te,
t
it displays
“
“-
“
-” and
indication point A
t A
t A
t A
t A
A
A
A
is on.
c. Loa
a
a
a
d
d r
d r
d r
d r
r
d r
d r
ate
ate
ate
ate
ate
ate
ate
ate
e
di
d
d
d
d
d
d
d
d
spl
s
s
s
s
s
s
ay
a
a
Load rate display is used for displaying the total load rate of unit
system or the modular unit system A compressor, with allowable
display scope 0%~100%; the load rate of the fixed speed
compressor is only 0% (shutdown) or 100%(startup).
d. Failure display
It is used for displaying the total failure warning date of unit or
that of modular unit, with failure display scope E0~EF, E
indicating failure, 0~F indicating failure code. “E-“ is displayed
when there is no failure and indication point # is on at the same
time.
e. Protection display
It is used for displaying the total system protection data of unit or
the system protection data of modular unit, with protection
display scope P0~PF, P indicating system protection, 0~F
indicating protection code. “P-“ is displayed when there is no
failure and indication point # is on at the same time.
f. Unit number display
It is used for displaying the address number of the currently
selected modular unit, with display scope 0~15 and indication
point # is on at the same time.
g. Display of online unit number and startup unit number
They are used for displaying the total online modular units of the
whole unit system and the number of the modular unit under
running state, respectively, with display scope 0~16.
Failure of reduction of wired controller number at
parallel connection of multiple wired controller
(reserved)
System freeze-proof protection
System A is air discharge temperature protection in digital compressor
Condenser high temperature protection in system B
Condenser high temperature protection in system A
Current protection in system B
Current protection in system A
Low pressure protection System B
Hig
Hig
Hig
Hig
H
Hig
Hig
ig
h p
h p
h p
h p
h p
h p
h p
h p
h p
res
res
res
s
res
res
e
s
s
sur
sur
sur
sur
su
su
sur
su
e o
e o
e o
o
e o
o
e
r air discharge temperature protection in system B
ow
ow
Low
Low
ow
ow
w
ow
w
pr
pr
p
pr
pr
pr
pr
p
ess
ss
ss
s
ss
s
s
s
ure
u
u
ur
u
u
u
ur
u
pr
pr
pr
pr
r
pr
pr
r
pr
o
o
ote
o
o
o
o
o
o
ction
Sys
Sy
Sy
s
Sys
Sys
Sys
Sys
tem
m
m
m
m
A
A
A
A
A
A
Hig
g
g
g
g
h p
h p
h p
h p
p
h p
h p
p
p
r
r
re
res
r
r
sur
ur
ur
ur
ur
r
r
r
e o
e o
e o
e o
e o
e o
e o
e o
r a
ir
ir
ir
ir
ir
i
r
dis
dis
dis
dis
dis
dis
dis
dis
dis
c
c
c
cha
c
c
c
c
rge te
mpe
mpe
e
eratur
r
re pr
r
rote
ote
ote
ote
ote
te
t
t
te
cti
i
on
on
o
on
on
on
o
o
er
r
r
rror in sys
s
stem
m
m
m A
Inl
nl
nl
nl
l
nl
n
et
et
et
et
et
et
t
e
wa
wat
wat
wat
wa
wa
wa
wa
er temper
er
r
r
r
r
r
r
r
atu
atu
a
atu
atu
atu
atu
atu
re sensor e
e
e
error
r
r
r
Wir
Wir
Wir
Wi
Wir
Wi
Wi
Wir
Wir
e c
e c
e c
c
e c
e c
e c
e c
ont
ont
ont
ont
ont
ont
ont
ont
on
ont
rol
rol
rol
ol
ol
o
rol
rol
ol
an
an
an
an
an
an
d c
d
d
d
d
d
d
d
d
omputer communication error
1-hour consecutive 4-times PE protection
Wire control and module unit communication error
Wire control did not found out any on-line module unit.
Freeze-proof temperature sensor 1 in double-pipe heat exchanger error
Main unit detect that auxiliary unit’s quantity have decreased.
Water flow detection error (The first and second times)
Error of the Air Exhaust Temp. Sensor at Digital Compressor
Outdoor ambient temperature sensor error or power supply protection
Pipe temperature sensor in condenser B error
Pipe temperature sensor in condenser A error
Outlet water temperature sensor in double-pipe heat exchanger error
Total water outlet temperature sensor error
Communication error
Power phase sequence error
Water flow detection error (The third time)
Table 8-1
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EA
Eb
EC
ED
Ed
EE
E
E
E
E
E
E
E
E
EF
E
EF
EF
E
EF
E
E
F
P0
P0
P0
P0
P0
P0
P
P
P
P1
P1
P1
P1
P1
P
P1
P
P2
P3
P4
P5
P6
P7
P8
Pb
PE
F2
8.1.4 Treatment of display data
Wire controller failure
F1
Low-temperature protection of double-pipe heat exchanger
29
30
P9
PA
Protection of outlet and inlet water temperature difference
Low ambient temperature drive-up protection
