Toshiba ESTIA HWS-802XWHM3-E Manuel D'installation page 30

Hydro Unit
• 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
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
Mode
Connection
2 - 3
1 - 3
• Be sure to prepare a non-voltage continuous contact for each terminal.
• Supplementary Insulation must be added to user touchable part of switches.
Emergency Shutdown input
S2: Emergency stop input
• Non-voltage contacts
• Connection details:
Emergency stop: Terminals 3 (COM) and 1 (HEAT) on TCB-PCMO3E (Refer to "Fig. 7-35")
▼ Fig. 7-35
29-EN
Ø = 100 %)
TCB-PCMO3E
Connection
Cable
PJ17
CN211
Cooling
on
open close
–
TCB-PCMO3E
Connection
Cable
CN210 PJ17
CAUTION
COM
3
COOL
2
HEAT
1
Heating
off on
–
– close
CAUTION
3
COM
COOL 2
1
HEAT
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Installation Manual
Local supply Thermostat
Cool Hot
off
–
open
Local Supply
S2