Toshiba HWS-802XWHT6-E, HWS-802H-E Operation flow and applicable data, etc, TTW sensor

Item

Operation flow and applicable data, etc.

8-2.

The following shows the operation modes and controlled objects.

Operation

Mode and

Operation

Heating and Hot water

Cooling and Hot water

mode

Control Method

Heat pump select

Heat pump select

Heat pump select

Heat pump select

Hot

for hot water

for hot water

for heating

for cooling

Cooling

Heating

water

supply

supply

only

only

supply

Hot

Hot

Hot

Hot

only

Heating

water

Heating

water

Cooling

water

Cooling

water

Controlled

side

supply

side

supply

side

supply

side

supply

object

side

side

side

side

Heat pump

O

O

O

O

×

×

O

O

×

×

O

Backup

×

O

×

O

×

×

×

×

×

×

×

heater

Hot water

cylinder

×

×

O

×

O

×

O

×

O

×

O

heater

O

Possible

×

Not possible

1)Hot water supply operation

1)Operation start condition

When the [HOT WATER] remote controller button is pressed and the following operation start condition is met, the operation starts.

•TTW < 38°C is detected.

2) Operation mode determination						TTW sensor
An operation mode is determined according to the temperature
of TTW sensor.
•	Heat pump operation selection *1 *2
• When TTW < 38°C (a zone in the right figure) is met, the heat
	pump operation is selected.				(Hot water cylinder unit)
•	Heater operation selection
	When 45°C			TTW < TSC_H (b zone in the right figure) is
	met, the heater operation is selected.
•	Thermostat status "OFF" selection				TTW
	When TTW		TSC_H is met, the thermostat status "OFF" is
	selected.				TSC_H
							c Zone
3) Operation stop					(Temperature set with	Thermostat OFF
					remote controller)
The operation stops in the following cases.						Heater operation
•	The remote controller gives a stop instruction.
						b Zone
• TTW		TSC_H is met.			HP_H OFF 45°C
*1: When the outside temperature is -20°C or below, the heater					HP_H ON 38°C	Heat pump
operation is selected even if the TTW temperature falls into "a						operation	a Zone

zone".

*2: When "Hot water supply" and "Heating" are simultaneously in				TSC_H is hot water temperature
	operation, the heater operation may be selected depending on
				set with remote controller
	the outside air temperature.
Related FC
	FC No.	Setting item	Default	Setting available range
	1E	Upper limit of hot water supply temperature	75°C	60-80°C
	1F	Lower limit of hot water supply temperature	40°C	40-60°C
	20	Heat pump start temperature	38°C	20-45°C
	21	Heat pump end temperature	45°C	40-50°C
	24	Outside air correction start temperature for hot water supply*3	0°C	-20-10°C
	25	Outside air correction temperature for hot water supply*3	3 deg	0 -15 deg

*3:When the outside temperature is 0°C or below, the boil-up temperature will be higher that setting temperature in hot water supply mode.

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