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Temporary Override Mode: 

Temporary Override mode maintains until next 
program time is met. 

 

Permanent Override Mode: 

The room temperature will be maintained at the Override 
temperature until Override mode is released. Press 

<PRG> 

to release the Permanent Override mode.   

 

H. Control Off / Sleep mode:   

1.  Press the <

> to select the sleep mode and control 

off mode.

 

The sequence is as below: 

Normal Mode 

 Sleep Mode 

 Control Off Mode 

 

Normal Mode 

 

2. Press any other keys to exit the control off / sleep mode 

and return normal mode.

 

 

Sleep Mode:

 

At sleep mode, <

> icon is displayed. Transmitter stops 

measuring and displaying the temperature. Only the   

 

 

 

            11   

Do not place the thermostat near heat/cool generating 
sources. 

2.  Wiring: 

Caution: Turn off the electrical devices and receiver 

before wiring.   

There is 4-wire cable provided 

Color 

Connection 

Brown 

240Vac Live 

Blue 

240Vac Neutral 

Black 

240Vac Live 

Grey 

Device’s power input 

 

 

It is recommended that a 10A fuse is fitted at grey wire. 
(Please refer to the wiring diagram on the last page.) 

3.  Mounting: 

Using  the  accessory  screws  and  wall  anchors 

provided, mount DRF4 with the key-hole at the back. 
The  transmitter  and  receiver  should  be  mounted  on 
the wall and install the covers on them.   

 

4

 

Summary of Contents for DRF4

Page 1: ...CORONDO CONTROLS LTD BOLTON BL1 2PT www coronadocontrols com CELECT DRF4 RF Programmable Thermostat for Weekday Weekend Setting Instruction Manual ...

Page 2: ...Time Mode 5 D Normal Time Setting Mode 6 E Factory Defined Programs 7 F Set Program 8 G Temporary Permanent Override Mode 9 H Control Off Sleep Mode 11 I Jumper Selection 12 J Address Setting 13 K Specification 13 1 10 Storage temperature 10 60 C 11 Sensing Element NTC thermistor Terminal block connecting Label 14 ...

Page 3: ...50 C 13 DRF4 RF Programmable Thermostat 1 The system includes one wireless thermostat controller plus one RF receiver 2 Transmits up to 20 meter indoor 3 Communicates at 868MHz Europe Standard and designed for unlicensed operation under FCC Part 15 Warning 1 If there is a dead zone in the RF communication That means the receiver may not be able to receive the message from the transmitter Before th...

Page 4: ...perature with freely circulating air Prevent direct exposure to sunlight dripping or splashing area Do not place this unit at a location where air circulation is low or where it has great temperature changes e g near door 3 irrespective of the current setting temperature Control Off mode The LCD is fully turned off The heater cooler is switched off irrespective of the current control temperature s...

Page 5: ...mal mode Sleep Mode At sleep mode icon is displayed Transmitter stops measuring and displaying the temperature Only the 11 Do not place the thermostat near heat cool generating sources 2 Wiring Caution Turn off the electrical devices and receiver before wiring There is 4 wire cable provided Color Connection Brown 240Vac Live Blue 240Vac Neutral Black 240Vac Live Grey Device s power input It is rec...

Page 6: ...n 5 Check if the thermostat works properly or not Press 5 Normal Temporary Override Permanent Override Normal Selecting the Temporary Permanent Override Mode 1 Press to change the mode from normal to Temporary Override icon will be displayed 2 Press again the mode changes from Temporary Override to Permanent Override mode icon will be displayed 3 Press once the mode changes from Permanent Override...

Page 7: ...verride and Permanent override mode The sequence is as below 9 Reset if necessary B Start Reset 1 After wiring and mounting switch off all the connected devices Place 2 new AAA 1 5V alkaline batteries according to the polarities marked LCD display will be switched on 2 Press RST to reset The DRF4 will be ready to control the heater cooler 3 Switch ON the heater cooler and receiver The heater coole...

Page 8: ...ooler turns on according to the activated program and the control temperature setting When the heater cooler is On Program number and 7 icons are shown The pre defined programs are as below Heater mode Mon Fri Sat Sun P1 06 00 21 C 08 00 21 C 08 00 21 C P2 08 00 16 C 10 00 16 C 10 00 16 C P3 12 00 21 C 12 00 21 C 12 00 21 C P4 15 00 16 C 15 00 16 C 15 00 16 C P5 18 00 21 C 18 00 21 C 18 00 21 C P6...

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