Special Control
Function
55
3.2.2 Oil Return Operation in Heating Operation
[Conditions to start]
The heating oil-returning operation is started referring following conditions.
Integrated amount of displaced oil
Timer
(After the power is turned on, integrated operating-time is 2 hours and subsequently every 8
hours.)
In addition, integrated amount of displaced oil is derived from Tc, Te, and the compressor
load.
* From the preparing oil-returning operation to the oil-returning operation, and from the oil-
returning operation to the operation after oil-returning, the compressor stops for 1 minute to
reduce noise on changing of the four way valve.
Outdoor Unit Actuator
Oil return preparation
operation
Oil return operation
Post-oil-return operation
Compressor
Upper limit control
140 Hz Full load
2-step increase from
36 Hz Unload to
(Pc - Pe>0.4 MPa)
every 20 sec.
Outdoor unit fan
STEP8
OFF
STEP8
Four way valve
ON
OFF
ON
Main electronic expansion valve
(EV1)
SH control
480 pls
55 pls
Subcooling electronic expansion
valve (EV3)
0 pls
0 pls
0 pls
Hot gas bypass valve (SVP)
OFF
OFF
OFF
Ending conditions
2 min.
•
12 min.
•
Ts1 - Te<5°C
•
Tb>11°C
•
160 sec.
•
Pc - Pe>0.4MPa
or
&
{
or
Indoor unit actuator
Heating oil return operation
Fan
Thermostat ON unit
OFF
Stopping unit
OFF
Thermostat OFF unit
OFF
Electronic expansion valve
Thermostat ON unit
416 pls
Stopping unit
256 pls
Thermostat OFF unit
416 pls
Panasonic
Содержание U-4..6ML5XPQ
Страница 1: ...Service Manual U 4 6ML5XPQ DPQ Urban Multi Mini UM Heat Pump ...
Страница 2: ......
Страница 12: ...Introduction x Urban Multi ML5 Mini UM Heat Pump ...
Страница 17: ...Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Units 10 Panasonic ...
Страница 37: ...Specifications Specifications 25 Panasonic ...
Страница 38: ...Specifications 26 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 39: ...Specifications Specifications 27 Panasonic ...
Страница 40: ...Specifications 28 Specifications Urban Multi ML5 Mini UM Heat Pump ...
Страница 134: ...Field Setting 122 Test Operation Urban Multi ML5 Mini UM Heat Pump ...
Страница 235: ...Piping Diagrams Appendix 223 U 4 5 6ML5DPQ 3D052712 Panasonic ...
Страница 238: ...Piping Diagrams 226 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 239: ...Wiring Diagrams Appendix 227 2 Wiring Diagrams 2 1 Outdoor Unit U 4 5 6ML5XPQ 3D059640 Panasonic ...
Страница 240: ...Wiring Diagrams 228 Appendix U 4 5 6ML5DPQ 3D05811B Urban Multi ML5 Mini UM Heat Pump ...
Страница 241: ...Wiring Diagrams Appendix 229 2 2 Field Wiring U 4 5 6ML5XPQ 3D057919 Panasonic ...
Страница 242: ...Wiring Diagrams 230 Appendix U 4 5 6ML5DPQ 3D052597 Urban Multi ML5 Mini UM Heat Pump ...
Страница 243: ...Wiring Diagrams Appendix 231 2 3 Indoor Unit S 20 25 32 63LM3HPQ Panasonic ...
Страница 244: ...Wiring Diagrams 232 Appendix S 40 50 80 125LM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 245: ...Wiring Diagrams Appendix 233 S 20 25 32 40 50 63 80 100 125UM4JPQ Panasonic ...
Страница 246: ...Wiring Diagrams 234 Appendix S 20 25 32 40 50YM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 247: ...Wiring Diagrams Appendix 235 S 25 32 40 63DM3HPS 3D039564C Panasonic ...
Страница 248: ...Wiring Diagrams 236 Appendix S 20 25NM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 249: ...Wiring Diagrams Appendix 237 S 20 25 32 40 50 63FM3HPQ Panasonic ...
Страница 250: ...Wiring Diagrams 238 Appendix S80 100 125FM3HPQ Urban Multi ML5 Mini UM Heat Pump ...
Страница 252: ...Wiring Diagrams 240 Appendix S 32 63 100TM3JPR 3D039801D Urban Multi ML5 Mini UM Heat Pump ...
Страница 255: ...Wiring Diagrams Appendix 243 Panasonic ...
Страница 256: ...Wiring Diagrams 244 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 257: ...Wiring Diagrams Appendix 245 Panasonic ...
Страница 259: ...Option List Appendix 247 Panasonic ...
Страница 262: ...Example of Connection 250 Appendix Urban Multi ML5 Mini UM Heat Pump ...
Страница 283: ......