SiUS331708EA
Heat pump lockout temperature
Heat pump would be locked out when the outdoor air temperature is smaller than the heat pump lockout
temperature. This setting is only effective when heat pump lockout mode has been set.
When connecting with multiple gas furnaces, the field setting both 11(21)-1, 2 of indoor unit must be set to 07.
For indoor unit setting, see indoor unit installation manual.
No.
Setting item
Heat pump
57
lockout
temperature
Heat pump lockout release differential
Heat pump would be resumed when the outdoor air temperature is recovered by differential above the heat pump
lockout temperature.
No.
Setting item
Heat pump
lockout
47
release
differential
Automatic lockout
When heat pump lockout mode has been set, the auto backup function will automatically be set. This will allow
the auxiliary or secondary heat source to be automatically energized in the event of a system failure related to
outdoor units.
Field Settings and Test Operation
Setting item display
C/H selection
MODE
TEST
IND
Master
H1P
H2P
H3P
H4P
k
k
k
k
Setting item display
C/H selection
MODE
TEST
IND
Master
H1P
H2P
H3P
H4P
k
k
h
k
Low
Demand
noise
Slave
H7P
H6P
H5P
–26.1°C (–15°F)
–23.3°C (–10°F)
–20.5°C (–5°F)
–17.7°C (0°F)
–15°C (5°F)
–12.2°C (10°F)
–9.4°C (15°F)
h
h
k
–6.6°C (20°F)
–3.8°C (25°F)
–1.1°C (30°F)
1.6°C (35°F)
4.4°C (40°F)
7.2°C (45°F)
10°C (50°F)
Forced heat
pump lockout
Low
Demand
noise
Slave
H7P
H6P
H5P
2.8°C (5°F)
k
k
k
5.6°C (10°F)
8.3°C (15°F)
Field Settings from Outdoor Unit
Setting condition display
∗
Factory setting
k h h h h h h
k h h h h h k
k h h h h k h
k h h h h k k
k h h h k h h
k h h h k h k
k h h h k k h
k h h h k k k
k h h k h h h
k h h k h h k
k h h k h k h
k h h k h k k
k h h k k h h
k h h k k h k
k h h k k k h
Setting condition display
∗
Factory setting
k h h h h h h
k h h h h h k
k h h h h k h
∗
∗
130