NO
NO
Start
Breaker
turned on
Normal operation
Trouble observed
Stop
YES
Operatio
command
YES
YES
Error mode
Operation
mode
Operation
mode
1. Judgment of operation mode
(Cooling only, heating only, combination
of cooling/heating)
2. Signal sent to outdoor units
Reception of signal indicating operation
modes from outdoor units
Solenoid valve OFF,
LEV fully close
Cancellation of the self-
holding of protection function
Note 1
NO
Error signal sent to outdoor units
Error stop
Self-holding of protection function
Error signal sent to indoor units
Heating only
operation
Cooling main
operation
Heatin main
operation
Cooling only
operation
Operation
mode
❉
Note 1: Error modes include errors on the indoor unit side, and errors on the BC controller and outdoor unit sides. If there are
problems on the indoor unit side, only the indoor units will stop. If there are problems with either on the BC controller
or outdoor unit side, all indoor units, BC controller, and outdoor units will stop their operations.
Fan mode
All units in the
same mode
Combination of cooling/
heating operation
3
3
n
- 104 -
(3) BC controller (Cooling only, heating only, cooling main, heating main operations)
Содержание PURY-P200
Страница 49: ... 46 Heat exchanger Fan guard Heat exchanger Fan guard P400 type Front view of the unit Rear view of the unit ...
Страница 57: ... 54 CNVDC DC bus voltage input 1 3 LED1 LED2 SW2 CNTR IPM back CNN Fan motor output Fuse CNRS2 3 FAN board ...
Страница 64: ... 61 Relay board RELAY 4 board Relay board RELAY 10 board ...