02-14
Operation mode
ON
6 ton
50rps
54rps
620rpm 620rpm
500rpm 500rpm
500rpm 500rpm
620rpm 620rpm
8 ton
LEVEL 1
LEVEL 2
LEVEL 1
LEVEL 2
COOL
HEAT
HEAT
COOL
«»
Normal operation
Not switched for 30 minutes
after being once switched.
Normal operation
* Automatic switching
* Automatic switching
Fan upper limit speed
Upper limit compressor capacity
Fan upper limit speed
Upper limit compressor capacity
Fan upper limit speed
Upper limit compressor capacity
Fan upper limit speed
Upper limit compressor capacity
«
»
Not switched for 30 minutes
after being once switched.
LOW NOISE MODE
LOW NOISE MODE
* Automatic switching
* Automatic switching
*
Operation in low noise mode
Operation in low noise mode
Operation in low noise mode
LOW NOISE MODE
LOW NOISE MODE
LOW NOISE MODE
LOW NOISE MODE
The operating sound lowers from about 3 to 5 dB more than the rated value
The operating sound lowers from about 3 to 5 dB more than the
LOW NOISE MODE
The operating noise is reduced by limiting the rotational speed of compressor and fan motor
2-8-4 Low noise mode
When the low noise mode setting ON from Push SW or External input or System controller Input, the outdoor unit operates
in the low noise mode as follows.
External Input (CN131)
on Master O.U
OFF
ON
Setting and corresponding operations
50rps
62rps
50rps
50rps
50rps 52rps
Low noise mode and operation contents
*Capacity -
shortage
Capacity shortage condition
- When the compressor capacity is not enough
(Compressor operates with upper limit capacity for long time.)
- When condensing capacity is not enough in cooling / cooling main operation
(When the following condition keeps for 5 minutes,
All of HEX in use and FAN spped can not increase and High pressure satu-
ration temperature 136.4 F (517.65psi) / 58 (3.57MPa))
- When evaporating capacity is not enough in heating / heating main operation
*Capacity -
shortage
*Capacity -
shortage
Capacity is enough even
when switched to low noise
mode
Capacity is enough even
when switched to low noise
mode
Capacity is enough even
when switched to low noise
mode
All of HEX in use and FAN spped can not increase and low pressure satu-
ration temperature 32 F ( 0 C))
(When the following condition keeps for 5 minutes,
Capacity priority setting
(Push SW)
or
Low noise mode setting
(Push SW)
Low noise level setting
(Push SW)
53rps
56rps
56rps
620rpm
500rpm
500rpm
620rpm
47rps
10 ton
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