Herz H7712 Series Manual

H7712 Series Touch Pad Thermostat
H7712 series Touch Pad fan coil unit thermostats are designed to control the room
temperature in air-conditioning fan coil unit system or dust pipe channel system. H7712
series thermostats with microprocessor and big LCD display. It shows the following items:
working status (cool, heat or ventilation), fan speed, room temperature, set-point
temperature etc. Keys include on/off (
adjustment (   ).
MODEL DESCRIPTION
Y： Control damper to open or close
DA/DA2：DA: Control 2-wire valve; DA2: Control 3-wire valve,
When the temperature reaches the set-point, it will
close the valve with the fan still running.
DB/DB2: DB:Control 2-wire valve; DB2: Control 3-wire
valve ,When the temperature reaches the set-point,
it will close both the valve and fan.
FCV2： Control 4 pipe fan coil units, Control heating and
cooling valves
temperature reaches the set-point, it will close the
valves with the fan still running
BASIC FEATURES
 Room temperature setting
 Manual or auto 3-speed changeover
 Defrost (low temperature protection)
 Clock, Timer ( -T, Option )
 Clock ,7 days programmable ( -T74, Option )
 Blue back light ( -L, Option )
 Keypad Lock (Option )
 Auto Restart ( Option )
SPECIFICATIONS
 Sensing element:
 Control Accuracy:
 Set-point range:
 Display range:
 Operation environment: 0～45℃
 Operating Humidity: 5～90%RH (non-condensing)
 Key : Touch screen key+ soft touch key
 Power Consumption :  1W
HERZ Armaturen Ges.m.b.H
Richard-Strauss-Strasse 22,1230 Vienna, Austria.
),mode ( ),fan speed (
HL2025
and 3-speed fan, when the
NTC
 1℃
5℃ to 35℃
0～55℃
) and temperature
-
T： Clock and timing on/off. Blank is invalid.
T74：7 days programming. Blank is invalid
L： Blue backlight. Blank is invalid.
E： Auto Restart(Restart the working status of
last 6 seconds before power off). Blank is
invalid.
STATUS DISPLAY
 Working Status: Cooling
 Fan Speeds: low ,Mid
 FCU valve status
 Room temperature display
 Temperature setting display
 Clock ,week display
 Power supply: AC 85～260V, 50/60Hz
 Display Accuracy:
 Wirings: Accepting 2 × 1.5 mm
 Switch current rating: Resistive: 2 A, Inductive: 1 A
 Housing: PC + ABS Flame Retardant
 Dimensions: 90 × 90 × 14.5 mm ( W × H × D )
 Hole pitch: 60 mm ( Standard )
 Protection Class: IP30
Data sheet for H 7712, Issue 0916
, Heating or Ventilation
,High or Auto
 0.5℃
2 2
or 1 x 2.5mm wires
1