Daikin SkyAir RZQ-P Series Service Manual page 43

SiUS28-902_B
 FTQ
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 starting condition 1 or the starting condition 2 is established, the operations
shown below will be conducted.
Function
Hot start starting conditions
• Starting condition 1: Defrost ending or
OR oil return ending
• Starting condition 2: Thermostat ON
Hot start control
H/L remote
controller setting
LL
OFF
ON
OFF
ON
OFF
Hot start in progress
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
TH : Temperature detected with the gas thermistor
2
TC: High pressure equivalent saturated temperature
Outline of Control (Indoor Unit)
Hot start ending conditions
• lapse of 3 minutes
OR
• TH2 > 93˚F
• Tc > 126˚F
Hot start delay
30 sec.
Normal control
Normal control
Normal control
35