LILYTECH ZL-7815A User manual

Suzhou Lily Tech. CO., Ltd.

Page 1, Total 4 Pages

ZL-7815A Temperature Controller

Version 1.0b

Feature

ZL-7815A thermostat has two universal timer outputs:

One timer output (R5) could be used as timer air exhaustion, and/or over temperature protecting exhaustion.
Another timer has two outputs (R3/R4). It could control 2 wires motor, or 3 wires/2 direction motor.

Function

Besides the function introduced in Feature, it has:

Heating / Cooling mode option,
Temperature output delay protection,
Over temperature warning,
Buzzing hint and warning.

Specification

Power supply: 100 ～ 240Vac, 50/60Hz

Sensor: NTC, R

25℃

= 10K, B

25/85℃

= 3435K

Setting range: 1.0 ~ 75.0℃
Display range: -9.9 ~ 99.9℃
Terminal: 2*1.5mm2, or 1*2.5mm

2

Outputs (resistive specification):

Temperature control R1 16A, R3/R4 3A, R5 5A

Working: -10~45℃, 5~85%RH without dew
Case materials: PC + ABS, fireproof
Protection level: IP65 (Front side only)
Dimension: W78 x H34.5 x D71 (mm)

Installation drilling: W71 x H29 (mm)

Keypad and Display

Key

Key

Function 1

Function 2

P

Keep depressed for 3 sec. to set system parameters

S Keep depressed for 3 sec. to set set-point

T1

⇅

Set value down

Keep depressed for 5 sec. to switch timer 1’s outputs

(R3/R4) status

CNT

Set value up

Short press to display for 2 sec. the times of R3 or R4

status changed. Lamp

Set

blinks in 2Hz

Lamp

Lamp

Function

On

Off

Blink

Set

Set

set-point

or

system parameter

Setting

set-point

----

Slow blink: Setting system parameter

Fast blink: the times of R3 or R4 status changes

has reached U24. R3 and R4 will not

switch any more

T2

R5 status

R5 energized for T2

R5 de-energized

R5 energized for over hot protection, ref. U16

H/C

Temperature output

R1 energized

R1 de-energized

R1 under delay protection, ref. U12

Display Code

When there is problem, the code and the room-temperature will display alternatively.

Code

Remark

E1

Sensor failure, short or open

Hi

High temperature alarming

Lo

Low temperature alarming

Power up (Reset) display

Display the following information consecutively:

All units are on,
Model name (78 15A),
Software version (1.0):

Suzhou Lily Tech. CO., Ltd.

Page 2, Total 4 Pages

Operation

Fast check

Keep

（

T1

⇅

）

depressed for 5 sec. to switch the outputs (R3 and R4) status.

Press （CNT）to display the counter value for 2 sec., and the Lamp Set blinks at 2Hz.

The counter value counts the switching times of R3 or R4.

Set set-point (factory default setting is 37.8℃)

Keep “S”

key

depressed for 3 sec.: Lamp

Set

on, the current set-point displays.
Press or to set the new value. Keeping depressed can fast set.
Press “S” to exit, and the setting will be saved.
The status will exit, and the setting will be saved, if there is no key operation for 30 sec.

Set system parameters

Keep “P” key depressed for 3 sec.: Lamp

Set

blinks, one system parameter code displays.

Press or to select a code.

Press “S” to display the value of the code.
Press or to set the value of the code. Keeping depressed can fast set.

Press “S” to return to code display, for code selection.
Keep “P” key depressed for 3 sec. to exit the status, and the settings will be saved.
The status will exit, and the setting will be saved, if there is no key operation for 30 sec.

System parameter table

Code

Function

Range

Remark

Factory

Set

U10

Control mode

CO/HE

CO: Cool; HE: Heat

HE

U11

Hysteresis

0.1 ~ 20.0℃

0.1

U12

Delay protection time for Temp. output (R1)

0 ~ 999 sec.

0

U13

Temperature calibration

-9.9 ~ +9.9℃

0.0

U14

Temp. high warning point (relative value)

0.0 ~ 99.9℃

If Room-temp ≥ Set-point + U14
warning (display Hi, buzzing);
If Room-temp < Set-point + U14
stop warning

0.0: disable Temp. high warning function

0.0

U15

Temp. low warning point (relative value)

0.0 ~ 99.9℃

Room-temp ≤ Set-point – U15
warning (display Lo, buzzing);
Room-temp > Set-point – U15
stop warning

0.0: disable Temp. low warning function

0.0
U16

Temp. high protecting point (relative value)

0.0～20.0℃

If Room-temp ≥ Set-point + U16, for U19
protecting exhausting on, R5 energized

0.0: disable Temp. high protecting function

0.2

U17

Temp. high protecting hysteresis

0.0～20.0℃

Room-temp < Set-point + U16 - U17,
protecting exhausting stops

0.0: disable Temp. high protecting function

0.1

U18

1st Temp. warning delay time

0～600 min.

0 U19

Delay time for Temp. high protecting

0～600 sec.

0