2WAY SYSTEM
Control Functions - Outdoor unit
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10. Demand Control
2WAY SYSTEM
Control Functions
10. Demand Control
2WAY SYSTEM
Control Functions-Outdoor Unit
10. Upper Current Limitation Mode
(4) When Using Demand Terminal Block
*Demand terminal block is a separate purchase (optional part).
Demand terminal block must be connected in order to perform the demand control.
(It is also possible to connect the optional Seri-Para I/O unit (optional CZ-CAPDC2) and setup the system.)
The current limitation values can be set by changing either contact.
* The rated current indicates the current value that is listed in the catalog or service manual.
* XX and YY are able to set in EEPROM of main outdoor unit.
Check " (3) Serial-parallel I/O " section.
During setting in LV1 - LV3,
[CZ-RTC4]
*
*
In respect of connection method for demand terminal block and Seri-Para I/O unit, refer to the installation
instructions supplied with the unit.
It is also possible to make setting that the display (symbol of demand-activated) is concealed as shown in the
following table.
: Input present
: Input not present
Seri-Para I/O unit
Demand terminal block
COM short circuit
Non
LV1
LV2
LV3
Contact 1 Contact 2
No control
Operates to XX% of the upper
limit for the rated current
Operates to YY% of the upper
limit for the rated current
Control
Forced thermostat OFF setting
Demand meaning
Operates to the maximum capacity.
Current is limited to the set values.
Current is limited to the set values.
SM830244-00_2WAY_7-Series.indb 34
15/10/05 14:36:03
[CZ-RTC5A] (demand-activated) displays on the remote
controller of the indoor unit.
LV3 LV2 LV1 COM
Demand
LV3 LV2 LV1 COM
Terminal block
DRED (Demand controller)
Relay contact point: No voltage relay
Current input is DC 24 V 10 mA
Use a very small electric current contact point for the relay.
SM830253-00_欧州2way7_SM-TRSM.indb 34
16/08/26 19:23:19
