2WAY SYSTEM
Control Functions
-
Outdoor Unit
1
- 24
1
7. Oil Control
7-5-2. Simplified flow of system oil recovery control
System oil recovery control shall be performed as the flow mentioned below.
Normal operation
→ Time before oil recovery 1 minute stop
→ Refrigerant oil recovery control between systems (Oil recovery control processing time)
→ Time after oil recovery 1 minute stop
→ Normal operation
-Cooling cycle
Maximum 2 minutes (Stops once before and once after control.)
Control time
Outdoor units
All outdoor units operate at maximum horsepower.
Indoor
units
MOV at all indoor units operate at a fixed pulse according to the indoor unit capacity.
RAP valve kits at all indoor units operate in Cooling mode (OFF status.)
MOV
RAP valve kit
Fan
Fan operates at the set fan speed, or stops depending on the operation mode of the
indoor unit.
-Heating cycle
Control time
Maximum 2 minutes (Stops once before and once after control.)
Outdoor units
All outdoor units operate at maximum horsepower.
MOV at all indoor units operate at 250 pulse.
RAP valve kits at all indoor units operate in Heating mode (ON status.)
MOV
RAP valve kit
Fan
Indoor
units
Fan operates at the set fan speed, stops or operates at a very low speed, depending
on the indoor unit operation mode.
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