55
EN
Cod. 3541T090 - Rev. 00 - 06/2019
REMOTE CONTROLLER - SERVICE MENU
8.5 HEAT mode setting
HEAT MODE SETTING typically consists of the following:
1. HEAT MODE: to set if the HEAT mode is active or not
2. T1S RANGE: Selecting the range of target outlet water temperature
3. T4HMAX: Setting the maximum outdoor air operating temperature
4. T4HMIN: Setting the minimum operating outdoor air operating temperature
5. dTISH: Setting the temperature difference for starting the unit
6. t_INTERVAL_H: to set the compressor stop time before the next start in heat
mode.
To determine whether the HEAT mode is effective, go to MENU> FOR SERVICE-
MAN> HEAT MODE SETTING. Press OK. The following page be displayed:
FACTORY
SETTINGS
3 HEAT MODE SETTING
HEAT MODE
T1S RANGE
T4HMAX
T4HMIN
dTISH
SCROLL
LOW
HIGH
25°C
-5°C
5°C
YES
NON
fig. 108 -
When the cursor is on HEAT MODE, Use◄► to scroll to YES or NON and press
OK to enable or disable the heat mode. When the cursor is on the T1S RANGE,
use ◄► to scroll to YES or NON and press OK to select the range of outlet water
temperature. When LOW is selected, the maximum target temperature is 55°C. If
the climate-related curve function (corresponds to “weather temperature set” in the
user interface) is enabled, the curve selected is the low temperature curve. When
HIGH is selected, the maximum target temperature is 60°C. If the climate-related
curve function (corresponds to “weather temperature set” in the user interface) is
enabled, the curve selected is the high temperature curve.
When the cursor is on T4HMAX,T4HMIN,dT1SH, dTSH or t_INTERVAL_H, Use
◄► and ▼▲ to scroll and adjust the parameter.
T4HMAX is the maximum outdoor air operating temperature for heat mode. The
unit will not work if the outdoor air temperature.
☞
NOTE
If HEAT MODE is set “NON”, the function is not available and so could not
be selected by the user.
T4HMAX is the maximum outdoor air operating temperature for heat mode. The
unit will not work if the outdoor air temperature is higher.
T4HMIN is the minimum outdoor air operating temperature for heat mode. The unit
will turn off if the outdoor air temperature is lower.
The relationship between the operation of the unit and outdoor air temperature can
be seen in the picture below:
HEAT
OFF
OFF
T4
T4HMIN
T4HMAX
HEAT
MODE
fig. 109 -
dT1SH is the temperature difference between T1 and T1S for switch-off the unit in
heat mode. When the target outlet water temperature T1S<47, the unit will turn on
or off as described below :
T1S+dT1SH
OFF
HEAT
T1
HEAT
MODE
fig. 110 -
When the target outlet water temperature T1S≥47, the unit will on or off as descri-
bed below:
MIN(T1S+dT1SH,70)
OFF
HEAT
T1
HEAT
MODE
fig. 111 -
If the remote wired controller has been set as a room thermostat (thanks to the
activation of the temperature probe in the controller) the dTSH parameter is the
temperature difference between Ta (internal measured room temperature) and TS
(internal room temperature setpoint) which involves unit shutdown. See diagram
below.
TS+dTSH
OFF
HEAT
Ta
MODO
CALDO
fig. 112 -
8.6 AUTO mode setting
Controlling AUTO mode typically consists of the following:
1. T4AUTOCMIN:setting the minimum operating outdoor air temperature for cooling
2. T4AUTOHMAX: setting the maximum operating outdoor air temperature for heating
To determine whether the AUTO mode is effective, go to MENU> FOR SERVICE-
MAN> AUTO MODE SETTING. Press OK. The following page is displayed.
FACTORY
SETTINGS
4 AUTO MODE SETTING
T4AUTOCMIN
T4AUTOHMAX
25
°C
17
°C
SCROLL
fig. 113 -
Use ◄ ► and ▼ ▲ to scroll and adjust the parameter.
T4AUTOCMIN is the minimum operating outdoor air temperature for cooling in
auto mode. The unit will turn off if the outdoor air temperature is lower when in
space cooling operation.
T4AUTOHMAX is the maximum operating outdoor air temperature for heating in
auto mode. The unit will turn off if the outdoor air temperature is higher when in
space heating operation.
The relationship between heat pump operation and outdoor air temperature is
described in the picture below:
COOL
OFF T4
T4HMIN
T4CMAX
T4AUTOCMIN
OFF
T4AUTOHMAX
Heat mode
by IBH or AHS
Heat mode
by heat pump
Heat mode
by IBH or AHS
Heat mode
by heat pump
COOL
MODE
fig. 114 -
Содержание OMNIA HYBRID C
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