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There are three methods for connecting the thermostat cable and it depends on the application.
Method A
RT can control heating and cooling individually, (4-pipe system)
User interface setting:
THERMOSTAT and ROOM MODE SETTING to YES:
A.1 When unit detect voltage is 230VAC between C and N ,the unit operates in the cooling mode
A.2 When unit detect voltage is 230VAC between H and N, the unit operates in the heating mode.
A.3 When unit detect voltage is 0VAC for both side(L-N, H-N) the unit stop working for space heating or cooling.
A.4 When unit detect voltage is 230VAC for both side(L-N, H-N) the unit working in cooling mode.
Method B
RT provide the switch signal to unit.
User interface setting:
ROOM THERMOSTAT and MODE SETTING to YES:
B.1 When unit detect voltage is 230VAC between H and N, unit turn on.
B.2 When unit detect voltage is 0VAC between H and N, unit turn off.
NOTE
When ROOM THERMOSTAT is set to YES, the indoor temperature sensor Ta can’t be set to valid, unit running only according to T1.
Method C
Hydraulic module is connected with two external temperature.
User interface setting:
DUAL ROOM THERMOSTAT su YES:
C.1 When unit detect voltage is 230VAC between H and N ,the MAIN side turn on.When unit detect voltage is 0VAC between
H and N, the MAIN side turn off.
C.2 When unit detect voltage is 230VAC between C and N, the ROOM side turn on according to climate temp curve. When
unit detect voltage is 0V between C and N), the ROOM side turn off.
C.3 When H-N and C-N are detected as 0VAC, unit turn off.
C.4 when H-N and C-N are detected as 230VAC, both MAIN and ROOM side turn on.
NOTE
The wiring of the thermostat should correspond to the settings of the user interface.
See chapter START-UP AND CONFIGURATION - ROOM THERMOSTAT.
Power supply of machine and room thermostat must be connected to the same Neutral Line and (L2) Phase Line(for 3-phase unit
only).
Room thermostat - Not supplied
Содержание WSAN-YMi 21
Страница 1: ...WSAN YMi 21 81 MANUAL...
Страница 43: ...43 Hydraulic module 5 7 9 kW 12 14 16 kW...
Страница 53: ...53 P 5 7 9 kW 12 14 16 kW...
Страница 112: ...112 1 phase 5 7 9KW 15 ELECTRICAL SCHEMA...
Страница 113: ...113 1 phase 12 14 16kW...
Страница 114: ...114 3 phase 12 14 16kW 15 ELECTRICAL SCHEMA...
Страница 134: ...134 Access by pwd is reserved to qualified personnel The parameters changes may cause malfunctions Structure menu...
Страница 153: ...153 20 CONTROLLER NAVIGATION MENU...
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