Daikin EWAQ021BAW - Startup Control in Heating Operation

Special Control ESIE11-05
48 Functional Description
3.1.2 Startup Control in Heating Operation
Thermostat ON
Pressure equalization
control prior to startup
Startup control
STEP1 STEP2
Compressor 0 Hz
52 Hz
+ OFF + OFF
124 Hz + OFF + OFF
+2 steps/20 sec.
(until Pc - Pe>0.39MPa is achieved)
Outdoor unit fan STEP4 STEP8 STEP8
Four way valve Holds ON ON
Main electronic expansion
valve (EV1)
0 pls 0 pls 0 pls
Subcooling electronic
expansion valve (EV2)
(EW*Q016BAW*)
0 pls 0 pls 0 pls
Hot gas bypass valve
(SVP)
OFF OFF OFF
Accumulator oil return valve
(SVO)
OFF OFF OFF
Ending conditions A lapse of one minute A lapse of 10 sec.
 A lapse of 130 sec.
 Pc>2.70MPa
 Pc-Pe>0.39MPa
Hydrobox expansion valve
K11E & K12E
0 pls 2000 pls 2000 pls
OR