HaiLin Controls HL2023 Series User Manual page 3

Alarm
Once the sensor fails, the thermostat will close the fan and valve, displaying "E1" or "E2".
E1：Sensor in short circuit alarm
E2：Sensor in open circuit alarm。
It is displaying "HI" when the temperature is higher than 55 , displaying "LO" when the temperature is lower
than 0 .
℃
WIRING DIAGRAMS
HL2023DA/DAE/DB/DBE
L
Val
Low
Med
Hi
N
HL2023DA2/DA2E/DB2/DB2E
Low
INSTALLATION
1.Put 3.5mm width
screwdriver into the slot.
5. Fix the installation
backboard with two
bolts on the wall.
Note: Be sure to connect all the wires as per the wiring diagrams and keep it away from water,
mud and other material so as to prevent the unit being spoiled!
Beijing HaiLin Auto Controls Equipment Co., Ltd.
International Information Industry Basement, HuilongguanNorth, Changping District, Beijing
AC85～260V 50/60Hz
N L
Valve
Fan
AC85～260V 50/60Hz
N L
L
VC
Valve
VO
Med
Fan
Hi
N
2.Open the
cover.
6. Connect the cables on
the control board
℃
HL2023Y/YE
HL2023FCV2/FCV2E
face
3.Remove the cables from
the control board
7. Firstly hang up the two
hooks with 30 degree
angle
Page 3 of 3
HaiLin Controls
AC85～260V 50/60Hz
N L
L
VC
VO
Damper
N
AC85～260V 50/60Hz
N L
L
Heating
Val2
Val1
Cooling
Low
Med
Fan
Hi
N
As per wiring diagram,
4 .
connect it with terminals,
8. Press down the both
down sides to fix the
cover and finish the
installation
Tel: +86 10 52816666
www.hailin.com