Toshiba HWS-803XWHM3-E Service Manual page 66

Item
8-3. 7-2) Room temperature thermostat control setting
Hydro Unit Control
• Setting of DPSW on the hydro unit
:DP_SW02_4="ON"(Default"OFF")
7-3)Heating thermostat operation
When the heating thermostat does not reach the assigned temperature (the circuit between (1) and (3) is closed),
heating starts under the setting that water temperature for heating is 40°C. If the heating thermostat has not reached
the assigned temperature 30 minutes after heating had started, the water temperature setting is turned up 1 degree,
and the same action will be repeated every 30 minutes until the thermostat reaches the assigned temperature. The
backup heater and booster heater are controlled in the same way as in the normal HP operation.
When the heating thermostat reaches the assigned temperature (the circuit between (1) and (3) is open), the heat
pump shifts to the "thermostat off" operation. During the operation, the water temperature setting is turned down by 1
degree every 30 minutes. The backup heater and booster heater are tuned off as the heat pump shifts to the
"thermostat off" operation.
7-4)Cooling thermostat operation
When the cooling thermostat does not reach the assigned temperature (the circuit between (2) and (3) is open),
cooling starts under the setting that water temperature fro cooling is 20°C. If the cooling thermostat has not reached
the assigned temperature 30 minutes after cooling had started, the water temperature setting is turned down 1 degree,
and the same action will be repeated every 30 minutes until the thermostat reaches the assigned temperature.
When the cooling thermostat reaches the assigned temperature (the circuit between (2) and (3) is closed), operation
shifts to the "thermostat off" operation. During the operation, the water temperature setting is turned up by 1 degree
every 30 minutes.
Room thermostat
CLOSE
OPEN
Operation flow and applicable data, etc.
Correction control Heating operation
Thermo on
Setting is corrected
The water temperature setting is turned
upward
up by 1 degree every 30 minutes.
Thermo off
Setting is corrected
The water temperature setting is turned
downward.
down by 1 degree every 30 minutes.
65
TCB-PCMO3E
PJ17
Terminal label
Thermo off
The water temperature setting is turned
up by 1 degree every 30 minutes.
Thermo on
The water temperature setting is turned
down by 1 degree every 30 minutes.
CN210
Red
CN211
Black
Cooling operation