; =
X x¾ ¿
to YES or NON and press OK to enable or disable the
heat mode. When the cursor is on the T1S RANGE, use
¾ ¿ ¦] ^^ ¨
range of outlet water temperature. When LOW is
selected, the maximum target temperature is 55°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 maximum target temperature is 60°C. If
climate-related curve function (corresponds to “weather
temperature set” in the user interface) is enabled, the
curve selected is high temperature curve.
When the cursor is on T4HMAX
、
T4HMIN
、
dT1SH
、
=] ^=_K X x ¾ ¿ ¾¿
and adjust the parameter.
T4HMAX is the maximum ambient operating
temperature for heat mode. The unit will not work if the
ambient temperature is higher.
T4HMIN is the minimum ambient operating temperature
for heat mode. The unit will turn off if the ambient
temperature is lower.
The relationship between the operation of the unit and
ambient temperature can be seen in the picture below:
dT1SH is the temperature difference between T1 and
T1S for starting the unit in heat mode.
When the target outlet water temperature T1S<47, the
unit will turn on or off as described below :
; J ² =#]\YX
unit will on or off as described below
：
dTSH is the temperature difference between Ta (Ta is
the room temperature) and TS for starting the unit when
ROOM TEMP is enabled in TEMP.TYPE SETTING
(refer to 10.7 Field setting/TEMP.TYPE SETTING). Only
when Ta drops to a certain value will the unit turn on, and
the unit will turn off if the Ta high enough. See diagram
below. (only when ROOM TEMP is enabled will this
function be available).
HEAT
OFF
OFF
T4
T4HMIN
T4HMAX
T1S+dT1SH
OFF
HEAT
T1
MIN(T1S+dT1SH,65)
OFF
HEAT
T1
25°C
-15°C
5°C
LOW
HIGH
YES
NON
SCROLL
3 HEAT MODE SETTING
HEAT MODE
T1S RANGE
T4HMAX
T4HMIN
dT1SH
t_INTERVAL_H is the compressor start time interval in
heat mode. When the compressor stops running, the next
time that the compressor turns on should be “
t_INTERVAL_H” and one minute later at least.
About AUTO SETTING
Controlling AUTO mode typically consists of the following
：
10.7.4 AUTO MODE SETTING
TS+dTSH
OFF
HEAT
Ta
T4AUTOCMIN
：
setting the minimum operating
ambient temperature for cooling
T4AUTOHMAX: setting the maximum operating
ambient temperature for heating
About TEMP. TYPE SETTING
10.7.5 TEMP. TYPE SETTING
How to set the AUTO mode
To determine whether the AUTO mode is effective, go to
MENU> FOR SERVICEMAN> AUTO MODE SETTING.
Press OK.
The following page is displayed.
In the picture, AHS is an additional heating source. IBH is
a backup heater in the unit.
Use
¾
¿
and ¾ ¿ to scroll and adjust the parameter.
T4AUTOCMIN is the minimum operating ambient
temperature for cooling in auto mode. The unit will turn off
if the ambient temperature is lower when in space cooling
operation.
T4AUTOHMAX is the maximum operating ambient
temperature for heating in auto mode. The unit will turn off
if the ambient temperature is higher when in space
heating operation.
The relationship between heat pump operation and
ambient 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
25°C
17°C
SCROLL
4 AUTO MODE SETTING
T4AUTOCMIN
T4AUTOHMAX
149
Summary of Contents for Aerotherm MAM-V9 Series
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