Toshiba HWS-P804XWHM3-E1(TR) Service Manual page 40

Item
8-2. 4) Cooling operation
Operation Mode
Pressing the [ZONE1, 2] button and then [OPERATION MODE] starts a cooling operation.
and Control
1) Operation start condition
Method
2) Op
• Heat pump operation selection *1
• Thermostat status "OFF"
3
) Ope
• 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.
5) 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
• g zone Operation with heating priority
Operation mode by zone
*2: 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.
When TTW ≥ 45 °C (FC: 21) is met, the operation ends f' zone and returns to f zone.
*3: If the h-zone operation starts while external temperature is higher than -25 °C, the h-zone operation continues for
60 minutes.
AMP Air Conditioning
Operation flow and applicable data, etc.
Pressing the [ZONE1, 2] button and then [OPERATION
MODE] starts a cooling operation.
eration mode selection
An operation mode is determined according to the
temperature of TWI sensor.
When TWI ≥ TSC_F (d zone in the right figure) is met, the
heat pump operation is selected.
When TWI < TSC_F (e zone in the right figure) is met, the
thermostat status "OFF" is selected.
ration stop condition
When either of the following conditions is met, the cooling
operation stops.
Setting item
02 Cooling mode availability
18 Upper limit of cooling setting temperature
19 Lower limit of cooling setting temperature
A heat pump operation is performed in the hot water supply
side, and a heating operation in the heating side.
The heat pump maintains a supply of hot water for up to
30 minutes during a simultaneous operation.
A heat pump operation is performed in the heating side, and
a cylinder heater operation in the hot water supply side.
Zone Hot water supply side
f Heat pump *2
g Heater
h Heater *3
Zone Hot water supply side
f' Heater
TSC_F+2K or 12 °C
(Temperature set with
remote controller)
Default
0
25
7
TO
pump priority
0
Heating heat
(FC22)
pump priority
-25
Heater operation
Heating side
Stop *2
Heat pump
Heater *3
Heating side
Heat pump
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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: Permitted
18-30 °C
7-20 °C
Hot water
f zone
supply heat
Diff : 5deg
operation
g zone
Diff : 5deg
operation
h zone *3
Diff : 2k