Daikin VRV REYQ96XATJU Installation Manual page 39

Type
Heat-pump heating is always
--
I
locked out
Mode 1
Lockout is controlled by ABC
terminals
Mode 2
(for a heater which
doesn't need airflow)
Mode 3
II
Lockout is controlled by the
Mode 4
outdoor ambient temperature and
setpoint which is configured by
Mode 5
the field setting 2-78 and 2-79
Mode 6
[2-78]= Heat pump lockout temp
Heat pump would be locked out when the outdoor ambient
temp is smaller than the Heat Pump Lockout Temp below –
this setting is only affective when heat pump lockout mode
has been set. Unit will switch to heat pump lock out.
Heat Pump
lockout Temp
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
[2-79]= Heat pump lockout release differential
Heat pump would be resumed when the outdoor ambient
temp is recovered by differential (below) above the Heat
Pump Lockout Temp.
Heat Pump lockout
Release differential
0
1
2
When HP lockout mode has been set the auto backup func-
tion will automatically be set. This will allow the auxiliary or
secondary heat source to be automatically energized in the
event of a system failure.
Error codes capable of auto backup are listed in the table below.
Please be aware that the error codes that are not listed do
not auto backup in order to protect the unit.
3P477778-7G English
Description
2-16 = ON
Fahrenheit Celsius
− 15 (default) − 26.1 (default)
− 10 − 23.3
− 5 − 20.5
0 − 17.7
5 − 15
10 − 12.2
15 − 9.4
20 − 6.6
25 − 3.8
30 − 1.1
35 1.6
40 4.4
45 7.2
50 10
Forced Heat pump Lock out
Fahrenheit Celsius
5 2.8°C
10 (default) 5.6°C (default)
15 8.3°C
Heating Thermo-on
Field Shorted
setting between
Aux heater
-- ON
A-C
2-37 =
Mode 1
B-C
ON
A-C
2-37 =
Mode 2
B-C
2-37 =
Same as 2-37 = Mode 1 & A-C shorted
Mode 3
2-37 =
Same as 2-37 = Mode 1 & B-C shorted
Mode 4
2-37 =
Same as 2-37 = Mode 2 & A-C shorted
Mode 5
2-37 =
Same as 2-37 = Mode 2 & B-C shorted
Mode 6
Error contents
BS abnormality
Actuation of high pressure switch
Actuation of low pressure sensor
Inv. compressor motor lock
Compressor damage alarm
Outdoor unit fan motor abnormality
Electronic expansion valve coil abnormality
Position signal abnormality of outdoor unit fan
motor
Outdoor air thermistor (R1T) abnormality
Discharge pipe temperature abnormality
Wet alarm
BS electronic expansion valve abnormality
Discharge pipe thermistor (R21T, R22T) and compres-
sor surface temperature thermistor (R14T) abnormality
Accumulator inlet thermistor (R10T) abnormality
Heat exchanging deicer thermistor (R11T) and heat
exchanger gas pipe thermistor (R8T,R9T) abnormality
Receiver inlet thermistor (R3T) and sub cooling heat
exchanger liquid pipe thermistor (R7T) abnormality
Heat exchanger liquid pipe thermistor (R15T, R4T,
R5T) abnormality
Subcooling heat exchanger gas pipe thermistor (R6T)
and receiver gas purge thermistor (R13T) abnormality
High pressure sensor abnormality
Low pressure sensor abnormality
Inverter PCB abnormality
Reactor temperature rise abnormality
Inverter radiation fin temperature rise abnormality
Inv. compressor instantaneous overcurrent
Inv. compressor overcurrent
Inv. compressor startup abnormality
Transmission error between inverter and control PCB
Actions
Heating Thermo-off
Indoor fan Aux heater
ON
OFF
(H/L)
ON
(H/L)
OFF
LL
OFF
Error code
(Auto backup
possible)
Indoor fan
LL
LL
OFF
LL
OFF
A3
E3
E4
E5
E6
E7
E9
H3
H7
H9
F3
F4
F9
J3
J5
J6
J7
J8
J9
JA
JC
L1
L3
L4
L5
L8
L9
LC
36