Outline of Control (Indoor Unit)
SiUS281117
Function and Control
57
6.7
Hot Start Control (In Heating Operation Only)
At startup with thermostat ON or after the completion of defrosting in heating operation, the
indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity.
[Detail of operation]
When either the
start
condition 1
or the
start
condition 2
is established, the operations shown
below will be conducted.
TH
2
: Temperature detected with the gas thermistor
TC: High pressure equivalent saturated temperature
The fan is not OFF before initiating the hot start: LL
The fan is OFF before initiating the hot start: OFF
Hot start control
Hot start in progress
Normal control
Normal control
LL
OFF
Remote controller
setting
Po (Horizontal)
Fa
n
Louv
er
Hot start ending conditions
·
lapse of 3 minutes
·
[TH2] > 93.2˚F
·
"Tc" > 125.6˚F
OR
Defrost ending or oil return ending
or Thermostat ON
H/L remote
controller setting