Outline of Control (Indoor Unit) SiUS331604E
59 Functions and Control
6.5 Hot Start Control (In Heating Operation Only)
At startup with thermostat ON or after the completion of defrosting in heating operation, the indoor fan is
controlled to prevent cold air from blasting out and ensure startup capacity.
TH
2: Temperature detected with the gas thermistor
TC
: High pressure equivalent saturated temperature
FXTQ
TH
2: Temperature detected with the gas thermistor
TC
: High pressure equivalent saturated temperature
Defrost ending or oil return ending
or thermostat ON
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
H/L remote
controller setting
LL
OFF
Remote controller
setting
Po (Horizontal)
FanLouver
Hot start ending conditions
· Lapse of 3 minutes
· TH2 > 34˚C (93.2˚F)
· Tc > 52˚C (125.6˚F)
OR
The fan is not OFF before initiating the hot start: LL
The fan is OFF before initiating the hot start: OFF
The fan is ON: ON
The fan is OFF: OFF
Hot start control
Hot start in progress
Normal control
Normal control
Normal control
H/L remote
controller setting
LL
OFF
OFF
ON
OFF
ON
FanHeaterHumidifier
30 sec.
Hot start delay
Hot start ending conditions
• lapse of 3 minutes
• TH
2 > 34˚C (93.2˚F)
• Tc > 52˚C (125.6˚F)
OR
OR
Hot start start conditions
· Starting condition 1: Defrost ending or
oil return ending
· Starting condition 2: Thermostat ON
To Next Page
Loading...
Need help?
General
