Imit CRX/E Plus Instruction Manual

CRX/E PLUS

Instruction manual

SUMMARY

1. Introduction pag. 3

2. Technical data 4

3. Display readings key 6

4. Chronothermostat controls key 7

5. Dimensions 8

6. Installation and connections 9

7. Chronothermostat start-up 16

8. Clock setting 16

2

9. Program setting 19

10. Temperature setting 21

11. Normal operation conditions 22

12. Override mode 22

13. Summer/winter setting 23

14. Differential setting 24

15. Knob lock 24

16. Unit reset 25

17. Troubleshooting 26

1. INTRODUCTION

Thank you for your confidence in our company and for choosing our products.
This is an easy-to-use, high-styling design, 7-DAY electronic PROGRAMMABLE THERMOSTAT.It allows an extremely accura­te room temperature adjustment in the hosting room;thus meeting any users' needs as far as room COMFORT

IN ACCORDANCE WITH THE STANDARDS:

• EN 60730-1 and later updating

• EN 60730-2-7

• EN 60730-2-9

IN ACCORDANCE WITH THE GUIDELINES:

• B.T.73/23/EEC

• E.M.C.89/336/EEC and later updating 93/68/EEC

3

2. TECHNICAL DATA

POWER SUPPLY= N° 2 1.5V alkaline batteries, type LR6
NORMAL TEMPERA TURE RANGE “T1”= 5÷30°C
REDUCED TEMPERA TURE RANGE “T2”= 6°/14°/16°/18°C (winter mode)

38°/30°/28°/26°C (summer mode)
ROOM TEMPERATURE RANGE ON DISPLAY= 0/40°C (accuracy 0.1°C)
TEMPERATURE UPDATING= once a min ute
ADJUSTABLE TEMPERATURE DIFFERENTIAL= 0.2K or 0.8K

4

SENSING ELEMENT = NTC 2%
DEGREE OF PROTECTION= IP 20
OUTPUT= switching relay
CONTACTS RATING= 5(0.5)A/250V~
SWITCH ACTION= 1BU
INSTALLATION LOCATION = normal environment
MAXIMUM STANDING TEMPERATURE= 50°C
STORAGE TEMPERATURE= 0÷60°C

ANTIFROST= 6°C fixed
PROGRAMMING= weekly
PROGRAM SETTING = by micro-switches/buttons
MINIMUM PROGRAMMING RANGE= 1 hour
SOFTWARE CLASS A
SET-TEMPERATURE OVERRIDE MODE
DISPLAY LCD
WINTER/SUMMER SWITCHING (heating/ air conditioning)
UNIT RESET
MOUNTING= to the wall

5

3. DISPLAY READINGS KEY

✲

Days of the week

On display: current

6

time and room

temperature

Low battery function

Operating

system

Reduced

temperature “T2”

(air conditioning)

Summer

Winter

(heating)

Antifrost

Proper set

confirmation

Operating program

activated

“Override” mode

activated

Time/temperature chart

of the activated program

4. CHRONOTHERMOSTAT CONTROLS KEY

✲

Programming confirmation

Microswitches for current time

and operating setting

button

Reset button

Access to the program
and day change button

Reduced temperature “T2”

setting button

Knob for normal

temperature “T1” setting

Override

button

Differential selector

✲

) or winter ( )

Summer (

mode selector

7

5. DIMENSIONS

88 mm

8

130 mm

1,5 mm

27 mm

60 mm

83,5 mm

6. INSTALLATION AND CONNECTIONS

SAFETY INSTRUCTIONS
Before connecting the chronothermostat, make sure that the UNIT TO BE CONTROLLED (boiler, pump, air conditioning
system, etc.) is NOT CONNECTED from the electrical source. Make also sure that the power supply is the same as the one
specified inside the chronothermostat base (250V~ max).

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