Test Operation PACD011001C2
470 Test Operation UM Combination “MA1R Series” Using R-407C
1.7 Demand Control
By connecting the external contact input to the demand input of the BMS interface adaptor for outdoor unit
(option), the compressor operating conditions can be controlled for reduced power consumption.
„
Demand 1 Approximately 70% level
„
Demand 2 Approximately 40% level
„
Demand 3 Forced thermostat OFF
Instructions for
Demand Control
Operation
1. Outdoor unit field setting
‹
Setting mode 1: Set low noise operation to “ON.”
‹
Setting mode 2: Match low noise operation and demand control address with address of BMS interface
adaptor for outdoor unit.
2. BMS interface adaptor for outdoor unit setting
‹
Function switch (SS1)
Set to “BOTH” or “DE.”
‹
Address setting switches (DS1, DS2)
Match with outdoor unit low noise operation and demand control address.
3. Select one from demand input terminals 1 through 3 on the BMS interface adaptor for outdoor
unit, and short the corresponding terminals.
„
Demand 1 Short 1-C.
„
Demand 2 Short 2-C.
„
Demand 3 Short 3-C.
Demand Control
System Example
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