Toshiba HWS-803XWHM3-E Service Manual page 69

Item
9) Control of limit of heat pump operation
When the peak period of electric power charge is set due to the contract or other conditions, you can limit heat pump
operation and give priority to boiler operation using an external input signal. (This control functions only during the
period the signal is input.)
• TCB-PCM03E optional board is required.
Connect its connection cable to CN210 port
on the PC board of the hydro unit.
9-1)Setting the control method
Select an operation mode by setting FC61.
• FC61="4":Hot water cylinder heater=OFF, backup heater=OFF (Built-in pump is ON.)
• FC61="5":Hot water cylinder heater=OFF, backup heater=OFF, heat pump=OFF, Built-in pump is stopped.
9-2)Control summary
When the TEMPO signal is input (the circuit is closed), the boiler signal is output regardless the outside temperature
and devices are turned off following the setting on FC61.
1. Basic operation: heating operation using the boiler
2. Switching to hot water supply: the water circuit is switched to the hot water supply side as the unit detect
that TTW is less than 38°C.
3. Switching to heating: the water circuit is switched to the heating side as the unit detect that TTW is 45°C
or more, or 30 minutes has passed since operation started. Heating operation continues at least 30
minutes.
10)Output signal control 1
(TCB-PCIN3E optional P.C. board is required. Connect its connection cable to the CN208 terminal on the P.C.
board in the hydro unit.)
• The circuit between the terminals (1) and (2) gets closed as an error detection signal is output.
• The circuit between the terminals (3) and (4 ) gets closed as a boiler signal is output.
The RED lamp on the P.C. board lights up when the signals are output.
11)Output signal control 2
(TCB-PCIN3E optional P.C. board is required. Connect its connection cable to the CN209 terminal on the P.C.
board in the hydro unit.)
< FC67="0": Default >
• The circuit between the terminals (1) and (2)
is closed during defrosting.
• The circuit between the terminal (3) and (4)
is closed while the compressor is running.
< FC67="1" >
• The circuit between the terminals (1) and (2)
gets closed as an error is detected.
• The circuit between the terminals (3) and (4)
is closed during operation (when the remote
control is ON)
The RED lamp on the P.C. board lights up
when the signals are output.
Related FC
FC No.
Changing the condition of optional
67 output (For the optional P.C. board
connected to CN209)
Operation flow and applicable data, etc.
TCB-PCIN3E
TCB-PCIN3E
Setting item
0: 1-3 During defrosting
2-3 While compressor is running.
68
PJ20
Terminal label
PJ20
Terminal label
Default
1: 1-3 As error is detected
2-3 During operation
CN208
Blue
CN209
Green
CN208
Blue
CN209
Green
Setting value