Toshiba HWS-455XWHM3-E Manuel D'installation page 54

Hydro Unit
Backup heater
energization
30
control during
defrosting
31 Floor drying
 Settings by purpose
Settings when hot water supply function is
not used
• When the hot water supply function is not used, set
DIP SW12-1 on the Hydro Unit board to ON. (Refer
to page 32.)
Setting for cooling
• For Hydro Units that do not perform cooling (those
for floor heating, etc.), procure a motorized 2-way
valve (for cooling) (refer to "Control parts
specifications" on page 22 for the details.) locally and
attach it to the water pipe that is not used for cooling.
Connect the valve cables to terminals TB05 (3) and
(4) of the Hydro Unit.
• Stick the optional insulator for cooling to the bottom
of the Hydro Unit.
53-EN
FC Description
β :
0 = 0K, ..., 4 = 40K
Recommendation : β=2 (20K)
Setting Start and End
temperature (°C)
Setting Max temperature (°C)
Continuation days for every
step up to Max temperature
(days)
Temperature difference for
every step up to Max
temperature (K)
Continuation days for every
step down to End temperature
(days)
Temperature difference for
every step down to End
temperature (K)
Continuation days in Max
temperature (days)
Location & FC
Number
Hydro RC Range
B9 – 0~4
– 14 20~55
– 15 20~55
– 16 1~7
– 17 1~10
– 18 1~7
– 19 1~10
– 1A 1~30
Settings for hot water supply
• Prepare the optional hot water cylinder.
• Procure a motorized 3-way valve (refer to "Control
parts specifications" on page 22 for the details.)
locally and perform piping. Connect the valve cables
to terminals TB05 (7), (8) and (9) of the Hydro Unit.
• Set DIP SW12-1 on the Hydro Unit board to OFF.
(Refer to page 32.)
• Connect the power supply unit for the hot water
cylinder heater to terminals TB03 L and N of the
Hydro Unit.
• Connect cables between the Hydro Unit and the hot
water cylinder as follows: Hydro Unit terminals
TB03 (1), (2), and earth — Hot water cylinder (1), (2),
and earth
TB06 A, B, and earth — Hot water cylinder A, B, and
earth
– 53 –
Installation Manual
After Change
Default
Commissioning
0
0
0
0
0
0
0
0
Change
1 2