Herz H7714 Series User And Installation Manual

H7714 Series Thermostat User and Installation Manual
series thermostats are suitable for industrial, commercial, and room
H7714
temperature control, which is applied to the 3-speed fan, DC 0-10V for the
electric control valve.
(with Modbus) model is used to realize remote centralized control
H7714-MD
and management, especially for office buildings, apartments, hotels, and other
commercial buildings.
Model Selection Guide
H7714 DA/DB
Characteristics and Advantages
Characteristics
Product serialization
Large Size LCD Screen
EEPROM Memory
ABS+PC Plastic Cover and Base
Heavy Duty Relay Available
Function
 Application: 2-Pipe/4-Pipe Fan Coil Control
 Operation Mode: Cooling/Heating/Ventilation
 Display: Operation Mode, Room temperature, Fan
speed, Valve Status, Clock, ECO mode
 Room Temperature Setting
 Backlight: White
 Fan Control: 3-Speed, Manual/Automatic
 Valve Control:
AO 0~10VDC
Technical specifications
 Power supply:
24VAC ±10%, 50/60Hz
 Power consumption: ˂ 2 W
 Temperature setpoint range: 5 ~ 35 ℃ in 0.5 ℃
increments
 Temperature measurement range: 0 ~ 55 ℃
 Accuracy: ±1 ℃
 Built-in Temperature Sensor Type: 10K NTC
 Remote Temperature Sensor Type: 10K NTC
 Terminations: Screw terminals block
Basic Function Setting
Operation
Turn On/Off
Operation Mode
Temperature Setting
Fan Speed
– T L
Advantages
This series of products have a variety of functional combinations,
which can be suitable for different application requirements
White back-light, clear display
Auto-recovery after power failure
Strong and durable Intrinsically flame retardant
7A relay optional for high static pressure FCU
modulating
Key
M (Cooling),
˄ ˅
1 /
H7714 DA/DB-TL FCU THERMOSTAT
White Backlight
7 Day/4 Period Schedule
DA/DB: 2-Pipe Coil
FCV2: 4-Pipe Coil
V: Only Analog Output
 Timer: Time on/off or 7 day/4 period
programmable schedule
 Key Lock
 Temperature Setpoint limit
 Auto-restart after power failure
 Low-temperature protection
 External Input: Remote temperature sensor and
digital switch (Hotel keycard)
 Relay Capacity: 5A (Res.) at 250 Vac (Maximum),
7A Relay optional
 Modulating Output: 0~10VDC Proportional
 Housing Material: PC + ABS plastic
 Operation Ambient Condition: 0 ~ 45℃, 90% RH
Non-condensing
 Storage Ambient Condition: -10 ~ 60℃, 90% RH
Non-condensing
 Dimensions: 86×86×15.5 mm (W×H×L)
 Protection class: IP20
Setting
Turn On / Turn Off
(Heating),
Room Temperature Setpoint
(Low), (Medium),
4
( Air venting)
(High),
AUTO