4-19
OPTIONAL FUNCTION
(4.2 Indoor Unit)
4.2.6 Control by Field-Supplied Room Thermostat (Except for KPI Series)
In the case that a field-supplied room thermostat instead of the inlet thermistor of the indoor unit is used,
connect wires as shown below. The required parts are shown in Table 4.5.
(In Case of “Room Thermostat (Cooling)” Input to 2# and 3# of CN3 and “Room Thermostat (Heating)”
Input to 1# and 2# of CN3 according to the item 4.2.1)
Operation
Cooling Operation: Compressor is ON by closing terminals 2 and 3 at CN3
Compressor is OFF by opening terminals 2 and 3 at CN3
Heating Operation: Compressor is ON by closing terminals 1 and 2 at CN3
Compressor is OFF by opening terminals 1 and 2 at CN3
Table 4.5 Specifications on Required Components
NOTES:
1. When setting the dip switch DSW2, turn OFF power source and set the dip switch. If the dip switch is
set without turning OFF the power source, it does not correctly function.
2. When a field-supplied room thermostat is used, select the specified thermostat as below.
Contactor Load: DC12V
Differential: more than 1.5 degree
3. Do not use a thermostat utilizing mercury.
4. This function can be used together with “4.2.3 Remote Control ON/OFF Function”.
Component Manufacturer or Specifications
Thermostat Equivalent of YAMATAKE R7031P005, R7031Q005
To Next Page
Loading...
