Toshiba Estia HWS-803XWHM3-E Manuel D'installation page 27

Hydro Unit
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
Connection Cable
TCB-PCIN3E
Display
Relay K1
EMG
CN209 PJ20
OPERATION
Display
Relay K2
Hydro unit
main control
board
CAUTION
• 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.
Power
Supply
Compressor
4
operation
output
3 L2
Power
Supply
Defrost
2
output
1
L1
Local Supply
Ø = 100 %)
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
TCB-PCMO3E
COM
CN211 PJ17
COOL
HEAT
Connection
Cable
Thermostat operation
Cooling
on
2 - 3 open
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.
– 27 –
Installation Manual
Local supply
Thermostat
3
Cool Hot
2
1
Heating
off on off
close – –
– close open
CAUTION
EN
26-EN