Toshiba HWS-802XWHM3-E Service Manual page 42

Item
8-2. 3) Cooling operation
Operation
Pressing the [ZONE1, 2] button and then [OPERATION MODE] starts a cooling operation.
Mode and
1) Operation start condition
Control Method
Pressing the [ZONE1, 2] button and then [OPERATION MODE]
starts a cooling operation.
2) Operation mode selection
An operation mode is determined according to the temperature
of TWI sensor.
• Heat pump operation selection *1 *2
When TWI
pump operation is selected.
• Thermostat status "OFF"
When TWI < TSC_F (e zone in the right figure) is met, the
thermostat status "OFF" is selected.
3) Operation stop condition
When either of the following conditions is met, the cooling
operation stops.
• The remote controller gives a stop instruction.
• The operation is switched to heating.
*1: When the outside temperature is 10°C or below, cooling does
not start even if the TWI temperature falls into "d zone".
Related FC
FC No.
02
18
19
4) Simultaneous operations of "hot water supply" and "heating"
At the time of "Hot water supply" and "Heating" simultaneous
operation, the operation mode is select as follows depending on
the outside air temperature.
• f zone Operation with hot water supply priority
A heat pump operation is performed in the hot water supply side,
and a heating operation in the heating side.
• g zone Operation with heating priority
A heat pump operation is performed in the heating side, and a
heating operation in the hot water supply side.
Operation mode by zone
Zone
f
g
h
* Note that after a heat pump operation for "Hot water supply" is selected in f zone, when the operation moves to a
heater operation for "hot water" and then 5 minutes has passed (Hot water supply operation in b zone), the operation
mode changes as follows.
Zone
f'
When TTW
Related FC
FC No.
07
22
* Note: When user selects "hot water supply" and "ZONE1,2", and Heat pump selects hot water supply mode, the
Maximum operating time of heat pump is 30 mins.
Operation flow and applicable data, etc.
TSC_F (d zone in the right figure) is met, the heat
Setting item
Cooling mode availability
Upper limit of cooling setting temperature
Lower limit of cooling setting temperature
Hot water supply side
Heat pump *
Heater
Heater
Hot water supply side
Heater
45°C (FC: changeable) is met, the operation ends f' zone and returns to f zone.
Setting item
Maximum HP operation time in "hot water supply" + "heating
mode"
Priority mode switch temperature (D)
TSC_F
(Temperature set with
remote controller)
Default
1: No
25
10
TO
D
(Note)
-20
Heating side
Stop *
Heat pump
Heater
Heating side
Heat pump
Default
30 min
0
41
TWI
Heat pump operation
(cooling)
d zone
e zone
TSC_F
Thermostat off operation
TSC is a cooling temperature
set with the remote controller
Setting available range
0: Yes
18-30°C
10-18°C
Hot water
supply heat
pump priority
operation
Heating heat
pump priority
operation
Heater operation
Setting available range
0-120min
-20-20°C
Diff : 2k
f zone
Diff : 5deg
g zone
Diff : 5deg
h zone