Daikin REYQ-TA Series Service Manual page 159

SiUS371614E
[2-37]: Heat pump lockout 2
Heat pump is locked out when this setting and an external input to ABC terminal are made.
Automatic lockout
When this setting is made, the auto-backup function will automatically be activated. This will allow the
auxiliary or secondary heat source to be automatically energized in the event of a system failure related
to outdoor units.
0 (default)
Mode
Mode 1
Mode 2
(∗1)
Mode 3
Mode 4
Mode 5
Mode 6
∗1. For a heater which does not need airflow
∗2. Depends on the indoor unit field setting 12(22)-3.
[2-45]: Technical cooling
0 (default)
[2-47]: Te target temperature during heat recovery operation
0 (default)
Field Settings
Value
[2-37]
1
2
3
4
5
6
Description
Lockout is controlled by
an external input to ABC
terminal
Lockout is controlled by
the outdoor temperature
and setpoint which is
configured by the setting
[2-78] and [2-79]
[2-45]
No technical cooling available
1 Technical cooling available
Value
[2-47]
1
2
3
4
5
6
7
Heat pump lockout 2
OFF
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Shorted
Field setting
between
A-C
2-37: Mode 1
B-C
A-C
2-37: Mode 2
B-C
2-37: Mode 3
2-37: Mode 4
2-37: Mode 5
2-37: Mode 6
Description
Te target
Auto
3°C (37.4°F)
6°C (42.8°F)
7°C (44.6°F)
8°C (46.4°F)
9°C (48.2°F)
10°C (50°F)
11°C (51.8°F)
Field Setting from Outdoor Unit
Actions
Heating Thermo-on Heating Thermo-off
Heater Fan Heater
ON (H/L)
ON
LL
OFF
Same as 2-37: Mode 1, A-C shorted
Same as 2-37: Mode 1, B-C shorted
Same as 2-37: Mode 2, A-C shorted
Same as 2-37: Mode 2, B-C shorted
Fan
LL (∗2)
OFF
OFF
LL (∗2)
OFF
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