UNIT OPERATION
.7 Machine operational status Checking
Press
both key M and ▼ for 3 seconds, then entered machine status form. Show as below.
“C0”is part or parameter NO. , “28” stands for parameter. Parameter 0 means system on, 1 means system off.
For more detail, please check form below.
Press M+
▼ for 3 seconds to search and check parameters .
NO. Name
range/meaning
status
00
Outdoor pipe temp.
-9~97
℃
check
01
Exhaust gas temp./on
and off
inverter: -9~97
℃
on/off:
0
(
off
)
;
1
(
on
)
check
02 Ambient
temp.
-9~97
℃
check
03
AC inlet water temp.
-9~97
℃
check
04
water source inlet water temp.
-9~97
℃
check
05
water source outlet water temp.
-9~97
℃
check
06
Switch input status
0
(
heating&cooling
)
1
(
heating only
)
check
07
Switch input status
0
(
air source
);
1
(
water source
)
check
08
Switch input status
0
(
DHW invalid
)
;
1
(
DHW valid
)
check
09
Switch input status
0
(
G1 valid
)
;
1
(
G1 invalid
)
check
10
high pressure swithc status
0
(
off
)
;
1
(
on
)
check
11
overcurrent protect switch status
0
(
off
)
;
1
(
on
)
check
12
low pressure swithc status
0
(
off
)
;
1
(
on
)
check
13 inside
water
flow
switch
0
(
off
)
;
1
(
on
)
check
14
outside water flow switch
0
(
off
)
;
1
(
on
)
check
15
The 2nd high pressure switch status
0
(
off
)
;
1
(
on
)
check
16 defrost
check
17
air conditioning antifreeze
check
18 System
antifreeze
check
19
Compressor status
Inverter model:show running frequency,
On/off model: show 0 for off or 100 for on
check
20
Outdoor fan motor
1
:
run
;
0
:
stop
check
21
crankcase heater
1
:
run
;
0
:
stop
check
22 4-way
valve
1
:
run
;
0
:
stop
check
23 Bypass
valve
1
:
run
;
0
:
stop
check
24
solenoid valve 1
1
:
run
;
0
:
stop
check
25
solenoid valve 2
1
:
run
;
0
:
stop
check
26
solenoid valve 3
1
:
run
;
0
:
stop
check
27 Electrical
heater
1
1
:
run
;
0
:
stop
check
28 Electrical
heater
2
1
:
run
;
0
:
stop
check
8