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ESIE02–01
General Functionality
Part 2 – Functional Description
2–9
3
2
4
5
1
Time chart
The time chart below illustrates emergency operation.
■
In cooling, the unit runs for 20 min and then stops for 10 min in order to avoid freeze-up of the
indoor coil.
■
During emergency operation, do not attempt to operate the equipment from the remote control.
The remote control shows
88
while the emergency operation is active on the indoor unit.
Active components
The table below shows when the most important components are active in the different forced
operating modes.
Additional info
To avoid misunderstandings, take the following into account:
■
If the PCB or the motorized valve is malfunctioning, emergency operation cannot be carried out.
■
No signal is transmitted between the indoor and outdoor units and remocon.
■
If a safety device should be activated during emergency operation, all actuators are turned OFF.
■
“Heat” cannot be set for c/o air conditioners.
■
Emergency operation uses (and switches ON) both indoor and outdoor control PCBs. The outdoor
control PCB determines the changeover.
■
In heating, defrosting is activated once every hour.
Power supply
Motorized valve
4-way valve
Compressor
Solenoid valve
Fully closed
10 s
60 s
Outdoor unit fan
Component
Forced cooling
Forced heating
Forced defrosting
Compressor
ON
ON
ON
4-way valve
■
RY35-45E(A)Z7V1: ON
■
RYP71-250B: OFF
■
RY35-45E(A)Z7V1: OFF
■
RYP71-250B: ON
■
RY35-45E(A)Z7V1: ON
■
RYP71-250B: OFF
Outdoor unit fan
H fan speed
H fan speed
OFF
Indoor unit fan
H fan speed
H fan speed
H fan speed
Drain pump
ON
OFF
ON
Summary of Contents for FHC45BZ7V1
Page 1: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 2: ......
Page 3: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 4: ......
Page 16: ...Introduction ESIE02 01 xii 3 1 4 5...
Page 18: ...ESIE02 01 1 2 Part 1 System Outline 3 1 1 5...
Page 42: ...General Outline Outdoor Units ESIE02 01 1 26 Part 1 System Outline 3 1 1 4 5...
Page 49: ...ESIE02 01 General Outline Indoor Units Part 1 System Outline 1 33 3 1 4 5...
Page 72: ...General Outline Indoor Units ESIE02 01 1 56 Part 1 System Outline 3 1 1 4 5...
Page 86: ...Specifications ESIE02 01 1 70 Part 1 System Outline 3 1 1 4 5...
Page 110: ...ESIE02 01 1 94 Part 1 System Outline...
Page 130: ...Switch Box Layout ESIE02 01 1 114 Part 1 System Outline 3 1 1 4 5...
Page 180: ...PCB Layout ESIE02 01 1 164 Part 1 System Outline 3 1 1 4 5...
Page 182: ...ESIE02 01 2 2 Part 2 Functional Description 3 1 2 5...
Page 204: ...General Functionality ESIE02 01 2 24 Part 2 Functional Description 3 1 2 4 5...
Page 216: ...Overview of the cooling mode functions ESIE02 01 2 36 Part 2 Functional Description 3 1 2 4 5...
Page 232: ...ESIE02 01 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 294: ...Error Codes System Malfunctions ESIE02 01 3 64 Part 3 Troubleshooting 3 1 3 4 5...