Cycleper hour (CPH)
Inorder toget amore accurate temperature control,
CPH function may enable the thermostat to open
the valve for several times per hour even the
temperature is close to setpoint (difference less
than ½ P-band). The default value is 4 for heating
and 3 for cooling and can be changed in Installer
Set-Up process.
Timeon/off
If the thermostat is off, hold power button for 3
seconds, system will be time on mode. If the
thermostat is on, hold power button for 3 seconds,
systemwill be time off mode.
The setting range is from 0 to 12 hours. The step is
0.5 hour with thedefault time is 0.
Backlight
Any key presswill activate the backlight. Backlights
will timeout 8 seconds after last key press. When
in Installer Set-up and Installer test mode, the
backlight will timeout 60 seconds after last key
press.
Remote temperature sensor
T6861 provides control either depending on the
acquired room temperature or depends on the
return air temperature. The model of remote
temperature sensor is (NTC20K).
Keypad lock
Keypad lock can be set in ISU with default status
is all keys available. You may change into mode
button lockedout, Fanandmodebuttons lockedout
andAll buttons locked out by changing the ISU.
TEMPERATURE
SETTING
PRESSTHISBUTTONTO
RAISETHETEMPERATURE
SETTING
PRESSTHISBUTTONTO
LOWERTHETEMPERATURE
SETTING
Ventilationmode
Press mode button to enter ventilation mode. In
ventilation mode, no output for valve while the fan
will operate according to selected fan speed.
Energy savingmode
A potential-free dry contact (such as hotel key
card) or button press (pressing mode button for
continuous 3 seconds) can activate the energy
saving mode with
icon appearing on screen.
The dry contact can be selected as normal open or
normal close type in ISU.
If activated by dry contact, all buttons will be locked
except the multi-key for ISU. If energy saving is
activated by button press, then any following button
presswill stop energy savingmode.
For heating mode, if the energy saving function is
enabled, the setpoint will change to remote setback
heating setpoint. The range of remote setback
heating setpoint is from 10
o
C to 21
o
C and default
value is 18
o
C. The value may change in ISU with
step of 0.5
o
C.
For cooling mode, if the energy saving function is
enabled, the setpoint will change to remote setback
cooling setpoint. The range of remote setback
cooling setpoint is from 22
o
C to 32
o
C and default
value is 26
o
C. The value may change in ISU with
step of 0.5
o
C.
Operatingmodes
The following operatingmodes are available:
Comfortmode
In comfort mode, the setpoint can be changed by
pressing up and down button. Different applications
include cool only, heat only and manual heat/cool
changeover.
INDICATESTHERMOSTAT
HASBEENSETTIMEOFF
APH07CH04
-
R2001EN
Temperaturedisplay
The displayed temperature can be set to acquired
room temperature or setpoint. The setting can be
made during Installer Set-Up process.
Room temperature and scetornt can be displayed
simultaneously.
