Herz H7990 Series Manual

H7990 Series Touch Pad Thermostat
H7990 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. H7990
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 (   ).

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:
 Operating Humidity:
 Key :
 Power Consumption :
 Power supply:

Display Accuracy:

Wirings:

Switch current rating:

Housing:

Dimensions:

Hole pitch:
 Protection Class:
HERZ Armaturen Gws.m.b.H
Richard-Strauss-Strasse 22,1230 Vienna, Austria.
),mode ( ),fan speed (

STATUS DISPLAY

 Working Status: Cooling
 Fan Speeds: low
 FCU valve status
 Room temperature display
 Temperature setting display
 Clock ,week display
NTC
 1℃
5℃ to 35℃
0 ～55℃
0～45℃
5～90%RH (non-condensing)
Touch screen key+ soft touch key
 1W
AC 85～260V, 50/60Hz
 0.5℃
2
Accepting 2 × 1.5 mm or 1 x 2.5mm
Resistive: 2 A, Inductive: 1 A
PC + ABS Flame Retardant
90 × 90 × 14.5 mm ( W × H × D )
60 mm ( Standard )
IP30
Data sheet for H7990, Issue 0916
) and temperature
, Heating
,High
, Mid
2
wires
or Ventilation
or Auto
1