TEMPERATURESETTING
PRESS THIS BUTTON TO RAISE
THETEMPERATURESETTING
PRESS THIS BUTTON TO LOWER
THETEMPERATURESETTING
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.
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.
Freezingprotectionmode
Freezing protection can be selected as disabled
(default) or enabled. In freezing protection mode
(no such mode in cool only application), when
thermostat is in OFF mode while the acquired
temperature is below 6
o
C, the thermostat will start
heat mode until the temperature rises to 8
o
C or the
thermostat is turned on.
On/offmode
Pressing power button can switch between on and
off mode.
Technical specification
Power supply
110 (+/-10%) VAC, 220(+10%,
-15%)VAC
Frequency
50/60Hz
Control algorithm PI, On/off output
Accuracy
+/-1
o
Cat 21
o
C
Rating capacity For 220V power supply:
4(2)A for fan load, 2(1)A for zone
valve
For 110V power supply:
4(2)A for fan load, 2(1)A for zone
valve
Cycle times
100,000
次
Setpoint range 10~32
o
C
Display range 0~37
o
C
Installation
Installed on 86×86mm junction
box or US2×4 inch.
ProtectionClass IP20
Environmental Operation temperature -18~49
o
C
Conditions
Shipping temperature -35~65
o
C
Relative humidity 5~90%
APH07CH04
-
R2000EN
