– 42 –
Hydro Unit
Installation Manual
EN
(3) Start the heating or cooling or Hot water operation
on the top screen, then the selected mode mark is
blinking during Test mode.
• The pump is activated in 30 seconds. If air is not
released completely, the flow rate switch is activated
to stop operation. Release air again according to the
piping procedure. Little air entrainment is discharged
from the purge valve.
• Check that the hydraulic pressure has become the
predetermined pressure 0.1 to 0.2 MPa (1 to 2 bar).
If the hydraulic pressure is insufficient, replenish
water.
• Heating operation starts. Check that the hydro unit
starts heating.
• Press the [
] button to select the Cooling
operation, in a few second, the operation starts.
• Check that the hydro unit starts cooling and that the
floor heating system is not cooled.
• Press the [
] button to stop the operation.
• Press the [
] button to start the Hot water supply
operation.
• Check that there is no air entrainment.
• Check that hot water is present at the connection
port of the hot water cylinder.
• Press the [
] button or [
ON/OFF] button to
stop the operation.
Floor drying
• This function is available only for the header remote
controller.
• This function is used for drying concrete etc.
• Service personnel must operate the unit after setting
the related function code.
• Operation is not started unless All the related
function codes are set.
• Refer to the following for the settings of the related
items. Please setup on the responsibility for an
installer. An unsuitable setup may cause a crack of
concrete etc.
• When the operation starts, the unit operates as
follows.
(1) Press the [
] / [
] button to select "Floor
drying" on the FIELD SETTING MENU, then press
the [
] button for 4 seconds or longer.
FC:14 setting start and End temperature [20-55°C]
FC:15 setting Max temperature [20-55°C]
FC:16 continuation days for every step up to Max
temperature [1-7 days]
FC:17 temperature difference for every step up to
Max temperature [1-10 K]
FC:18 continuation days for every step down to
End temperature [1-7 days]
FC:19 temperature difference for every step down
to End temperature [1-10 K]
FC:1A Continuation days in Max temperature [1-30
days]
ZONE1
ZONE2
HOT WATER
HEAT/COOL
HOT WATER
MON
Test mode
FIELD SETTING MENU(1/2)
Floor drying
Forced defrosting
Information input
Alarm history
SET
lapsed days
setting temperature
total days
42-EN
Summary of Contents for HWS-1405XWHM3-E
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