Toshiba XXXXXXX(<SanSerif1>X/X)
–27–
Hydro Unit
Installation Manual
EN
Compressor operation output
• Display relay is ON with outdoor unit compressor
operation.
• Volt free contact
AC230 V; 0.5 A (maximum)
DC24 V; 1 A (maximum)
• Connection details: Terminals 3 and 4 (EMG) on
MCC-1217 TB (Refer to “Fig. 7-33”)
▼ Fig. 7-33
• Be sure to prepare a non-voltage contact for each
terminal.
• Display Relay capacity of “EMG” and “OPERATION”.
Below AC230 V 0.5 A (COS
Ø = 100 %)
When connecting loads such as relay coil to “L1, L2”
load, insert noise surge absorber.
Below DC24 V 1 A (Non-inductive load)
When connecting load such as relay coil to “L1, L2”
load, insert the bypass circuit.
Optional inputs to hydro unit
Room Thermostat Input:
2–3: Room thermostat input for cooling mode
1–3: Room thermostat input for heating mode
• Output enabled when either heating or cooling mode
selected on room thermostat. (locally supplied)
• Volt free contacts
• Connection details:
Cooling Connection: Terminals 3 (COM) and 2
(COOL) on TCB-PCMO3E (Refer to “Fig. 7-34”)
Heating Connection: Terminals 3 (COM) and 1
(HEAT) on TCB-PCMO3E (Refer to “Fig. 7-34”)
▼ Fig. 7-34
Thermostat operation
• Be sure to prepare a non-voltage continuous contact
for each terminal.
• Supplementary Insulation must be added to user
touchable part of switches.
PJ20
CN209
TCB-PCIN3E
4
3
L2
2
1
L1
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