Daikin VRV K - 1.17 Te; Tc Setting

Functions Si-95
22 Functions Inverter K Series
Operation Contents
Step 1 → Discharge defrost k = kg/cm
2
Compressor 86Hz + OFF
EEV 2000pls
Outdoor Unit Fan OFF + OFF
Outdoor Unit Heat Exchanger Condenser
4 Way Valve OFF
Injection 1 Td Protection Control
Injection 2 OFF
Hot Gas ON
3 Minutes Elapsed
Step 2 → Suction defrost
Compressor 86Hz + OFF
EEV 2000pls
Outdoor Unit Fan OFF + OFF
Outdoor Unit Heat Exchanger Condenser
4 Way Valve OFF
Injection 1 Td Protection Control
Injection 2 Td Protection Control
Hot Gas ON
Conclution of Defrost Completion
Condition

or 


All of R2-1T, R2-2T ≥ 12.5ºC
Pc > 20.5k
10 Minutes Elapsed Since
Defrost Operation Start
Step 3 → BS solenoid valve changeover
Compressor 38Hz + OFF
EEV 2000pls
Outdoor Unit Fan OFF + OFF
Outdoor Unit Heat Exchanger Condenser
4 Way Valve OFF
Injection 1 Td Protection Control
Injection 2 OFF
Hot Gas ON
40 Seconds Elapsed
Step 4 → Refrigerant is discharged from accumulator
Compressor 76Hz + OFF
EEV Limit of EV Opening
Outdoor Unit Fan H + ON
Outdoor Unit Heat Exchanger Evaporator
4 Way Valve ON
Injection 1 Td Protection Control
Injection 2 OFF
Hot Gas Low Pressure Protection Control

or 

5 Minutes Elapsed
Pc > 14k
R5T > Te + 10ºC
Normal Control
∗Pc = Condensing Pressure
Preparation
for Defrost
Upper Limit Frequency
Limited to 38Hz + ON
1 Minute
Elapses
(VF015)
SI-95.BOOK Page 22 Friday, March 31, 2000 10:59 AM