Step Down / Safety Control → Standby (Forced Thermostat Off) → Stop Due To Malfunction - Panasonic Urban Multi MX1R Series Service Manual

Function
Step Down / Safety Control → Standby (Forced Thermostat OFF) → Stop Due
1.13
to Malfunction
1.13.1 MX1 Series
High Pressure (Hp) Control
(Cooling)
Hp≥23.5kg/cm²
(2.303MPa)
Frequency
1 STEP DOWN
(Heating)
Hp≥21.0kg/cm²
(2.058MPa)
30Hz+OFF(30Hz)
Low Pressure (Lp) Control
(Cooling)
Lp>2.0kg/cm²
(0.196MPa)
30Hz+OFF (30Hz)
(Heating)
R5T≤Te+10˚C
&
Lp<1.7kg/cm²
(0.167MPa)
116Hz+OFF(76Hz)
or
60Hz+ON(76Hz)
Discharge Pipe Temperature (Td) Control
Td>105˚C
or
DSH>55˚C (DSH = Discharge Super Heating)
or
Td>90˚C&Lp<3kg/cm² (Control during cooling)
or (0.294MPa)
Td>90˚C&Lp<2kg/cm²
or (0.196MPa)
Td>90˚C&During high pressure control&Lp<3.5kg/cm²
Inverter Current Control
27.0 / 15.0
INV≥27.0A(3φ, 220V)
15.0A
(3φ, 380~415V / 3φ, 380V)
FREQUENCY
1 STEP DOWN
42
Hp≥24.0kg/cm²
(2.352MPa)
8, 10HP(5HP)
76Hz+OFF(48Hz)
DSH>15˚C
Lp<1.0kg/cm²
&
Lp<1.2kg/cm²
(0.118MPa)
Hot gas bypass
valve ON
Injection valve ON
Lp<0.8kg/cm² Lp≥0.5kg/cm²
(0.078MPa)
54 Hz + OFF (54Hz) Hot gas bypass
valve ON
as lower limit
( )
Control
during
heating
(0.343MPa)
Hp>25.0kg/cm²
Forced OFF
by thermostat
(0.098MPa)
Lp<0.3kg/cm²
Forced OFF
by thermostat
Up to 2 times
(0.049MPa)
in 30 minutes
Td≥130˚C
K
K
38Hz+OFF(38Hz): Both high
K
106Hz+OFF(-): STD only high
38Hz+ON(-): INV only high
27.5 / 15.0
INV≥27.5A(3φ, 220V)
15.0A
(3φ, 380~415V / 3φ, 380V)
Forced OFF by thermostat
UP to 4 times in 60 minutes
Function Urban Multi "MX1, ME1 Series" Using R-22
PACD011001C2
Hp>27.5kg/cm²
(2.450MPa) (2.695MPa)
E3 stop due
to malfunction
Lp<0kg/cm²
(0.029MPa)
E4 stop due
to malfunction
Td>135˚C Td≥135˚C
Forced thermostat OFF F3 stop due
Up to 2 times to malfunction
in 100 minutes
L8 stop due
to malfunction
(VF001)
(0MPa)
(VF002)
(VF005)
(VF004)