EAS Electric ETH-80VM, Installation & Owner'S Manual

Page: 130 / 199

T5S_DI is the target temperature of water in the domestic hot water
tank in the DISINFECT function.
t_DI_HIGHTEMP is the time that the hot water will last.
t_DI_MAX is the time that disinfection will last. The change of domestic
water temperature is described in the picture below:
T5
Min (T5S,Tstop)-dT5_on
t_DHWHP_max
Time
Restart
t_DHWHP_restrict
Min (T5S,Tstop)
Space
heating/
cooling
operation
Heating
water
Heating
water
Be aware that the domestic hot water temperature at the hot water
tap will be equal to the value selected in FOR SERVICEMAN
“T5S_DI” after a disinfection operation.
4. To set the priority between domestic water heating and space
operation Go to SERVICEMAN>DHW MODE SETTING>1.4DHW
PRIORITY:
The function of the DHW PRIORITY is used to set the operation
priority between domestic water heating and space (heating/cooling)
operation. You can use ◄ ► and ▼▲ to scroll and adjust parameters.
Using BACK to exit.
t_DHWHP_MAX is the maximum continuous working period of the
heat pump in DHW PRIORITY mode.
t_DHWHP_RESTRICT is the operation time for the space heating/
cooling operation.
About COOL MODE SETTING
COOL MODE SETTING
COOL MODE SETTING typically consists of the following
：
1. COOL MODE: Setting the COOL mode effective or non-effective
2. T1S RANGE: Selecting the range of target outlet water temperature
3. T4CMAX: Setting the maximum ambient operation temperature
4. T4CMIN: Setting the minimum ambient operating temperature
5. dT1SC: Setting the temperature difference for starting the heat pump
How to set the COOL mode
To determine whether the COOL mode is effective, go to
MENU> FOR SERVICEMAN> COOL MODE SETTING. Press OK.
The following page will be displayed:
When the cursor is on T4CMAX
、
T4CMIN
、
dT1SC
、
dTSC or
t_INTERVAL_C, Use ◄► and ▼▲ to scroll and adjust the parameter.
T4CMAX is the maximum ambient temperature in COOL mode. The
unit cannot work if the ambient temperature is higher.
T4CMIN is the minimum ambient operating temperature in COOL
mode. The unit will turn off if the ambient temperature drops below it.
The relationship between the operation of the unit and ambient
temperature is shown in the picture below:
If DHW PRIORITY is enabled, the operation of the unit is described
in the picture below:
1.4 DHW PRIORITY
t_DHWHP_MAX
t_DHWHP_RESTRICT
180MIN
180MIN
SCROLL
1.5 DHW PUMP
TIMER RUNNING
DISINFECT
PUMP RUNNING TIME
ON
ON
10MIN
SCROLL ON/OFF
ON/OFF
2 COOL MODE SETTING
COOL MODE
T1S RANGE
T4CMAX
T4CMIN
dT1SC
SCROLL
LOW HIGH
43°C
20°C
5°C
YES NON
2 COOL MODE SETTING
dTSC
t_INTERVAL_C
SCROLL
2/2 1/2
2°C
5MIN
When the cursor is on COOL MODE, Use ◄► to select YES or
NON. Then press OK to enable or disable the cool mode. When the
cursor is on T1S RANGE. Use ◄►to select the range of outlet
water temperature. When
LOW
is selected, the minimum target
temperature is 5°C. If climate-related curve function (corresponds to
“weather temperature set” in the user interface) is enabled , the
curve selected is low temperature curve. When
HIGH
is selected,
the minimum target temperature is 18°C, if climate-related curve
function (corresponds to “weather temperature set” in the user
interface) is enabled, the curve selected is high temperature curve.
WARNING
If this high domestic hot water temperature can be a potential
risk for human injuries, a mixing valve (field supply) should be
installed at the hot water outlet connection of the domestic hot
water tank. This mixing valve will ensure that the hot water
temperature at the hot water tap never rises above a set
maximum value. This maximum allowable hot water
temperature shall be selected according to local laws and
regulations.
41
When the TIMER RUNNING is ON , the DHW pump will run as timed
and keeps running for an certain time (as defined in PUMP
RUNNING TIME ), this can ensure the temperature of water in the
system are uniform.
When DISINFECT is ON , the DHW pump will operate when the unit
is in disinfect mode and T5≥T5S_DI-2. Pump run time is PUMP
RUNNING TIME +5min.
5 If the DHW pump( P_d) is avaliable, Go to FOR SERVICEMAN
>DHW MODE SETTING>1.5DHW PUMP and select “YES”, when
“OK” pressed, the following page will appear,You can use ◄► and
▼▲ to scroll and adjust parameters. Use BACK to exit.
t
T5
T5S_DI
T5S
t_DI_HIGHTEMP
t_DI_MAX
If NON is selected in the DHW PRIORITY mode, when it is available
and the space heating/cooling is OFF, the heat pump will heat the
domestic water as required. If space heating/cooling is ON, the
domestic water will be heated by booster heater(if booster heater is
available).
V.2