MULTI TYPE

6-8-5. Night operation (sound reduction) Control
Header outdoor unit
Outdoor unit
interface PCB
CN508
Connection
cable
Optional PCB
TB1
COM
PJ17 COOL
HEAT
Locally procured
Shield
wire
SW1
SW1: Night time signal switch
Operation
This function decreases noise at night or other times as necessary.
Terminal Input signal Operation
ON
Night time control
COOL
(SW1)
OFF
ON
OFF
Normal operation
The input signal is recognized during its rising/falling phase.
(After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.)
The optional P.C. board should be connected to the header outdoor unit (U1).
The system's capacity is reduced during low-noise operation.
The table below provides a rough guide to this capacity reduction.
Outdoor unit
(base unit)
During low-noise mode*
dB(A)
Capacity
Cooling
Heating
Model 0804 50 approx. 85% approx. 80%
Model 1004 50 approx. 70% approx. 65%
Model 1204 50 approx. 60% approx. 55%
Model 1404 53 approx. 80% approx. 80%
Model 1604 53 approx. 70% approx. 70%
Relative to maximum capacity
* Position of noise measuring device: 1 m from the front face of the set and 1.5 m above ground (anechoic sound)
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