background image

Your thermostat carries an 24 months warranty from 

date of purchase. Service outwith the warranty 

period may incur a charge.

Warranty

  

Wiring your thermostat

Please note: 

Do not over-tighten the terminals in your thermostat 

as damage may occur.

Installing your thermostat

Your thermostat is suitable for installation within 

a standard 86mm pattress box or European 60mm 

round pattress box.

Step 1. Keep power off. See Fig 1.

Fig 1

Step 2. Remove the mounting Plate. See Fig 2. 

Fig 2

Fig 3

Step 3. Connect power supply, load and external (floor) sensor 

into the appropriate terminals if there is external sensor. 

(see “Wiring your thermostat” for details and Fig 3).

Step 4. Fix the mounting plate into the wall with screws in 

the box. See Fig 4

    

Fig 4

Step 5. Fasten body of thermostat and the mounting plate 
through the groove. See Fig 5.

Fig 5

Step 6. Installation complete. See Fig 6.

Fig 6

RISK OF ELECTRICAL SHOCK.

 Disconnect/isolate 

power supply prior to making electrical connections. 

Contact with high voltage components can cause electrical 

shock, severe injury or death.

No.

Function

Settings & Options

Default

1

Temp.

Calibration

-2

3

Lock

00: All the buttons are locked except

POWER

01: All the buttons are locked

01

4

01

5

Min. Set Temp.

5-15°C

18

6

Max. Set Temp.

5-35°C

32

7

00: Display both set temp. and

room temp.

01: Display set temp. only

9
10

11

Modbus IP address

0X00-0XFF

01

-9 to 9

12/24 Hour clock

00:12h     01:24h

8

Display Mode

00

01

Baudrate

1:9600;2:19200;3:38400;4:56000;5:115200

1

4. Setting functions and options

During power off, press and hold           at the same 

time for 5 sec. to system functions.  Then press M 

to change the different items.  

All the settings will confirm automatically when 

     

M

 

Press       or       to set the relative values.            

power is on.

AC/DC 24±10%V 50~60Hz

+_

42

mo

c_

42

No available

No available

No available

00

1

The room temperature is provided by the built-in sensor on the thermostat. 

An external 10k NTC sensor can be connected to the thermostat to provide 

additional temperature input. Externally sensed temperature is only readable 

on the Modbus. 

A/+ B/-

 10k NTC*

ORC-HC2-24D-RS485-WHF

8003/5331

ORCOMM

10k NTC* - Compatible sensors 

tested and approved by Orcomm

10K NTC* - Compatible sensors tested and approved 

by Orcomm

External sensor 

Temp. Calibra�on

-9 to 9

°C

°C

0

12

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