background image

CM907-

TRV

 CHRONOTHERM

 

 

 

2  

EN0H 8555 UK07 R0 09/06 

 
 

 

 

SPECIFICATIONS 

CONTROLS/DISPLAY LAYOUT 

Batteries 

:

  2 x 1.5 V IEC LR6 (AA) Alkaline cells 

Battery life 

:

  Minimum 2 years 

Battery 
replacement 

:

  Program retained in EEPROM 

Switch type 

:

  SPDT (potential free)  

Electrical rating 

:

  230 V~, 50...60 Hz, 0.5 A to 8 A resistive 

0.5 A to 3 A inductive (0.6 pf)  
24 V~, 50...60 Hz, 0.5 A to 8 A resistive 
0.5 A to 3 A inductive (0.6 pf)  
 

Time display 

:

  24 hour or 12 hour AM/PM format 

Time keeping 
accuracy 

:

  Typically better than 10 minutes per year 

Program  

:

  7-day with 6 daily time and temperature 

level changes 

Time setting 
resolution 

:

  Time of day - 1 minute                 

Program - 10 minute steps 

Sensing element 

:

  100K (@ 25

 o

C ) NTC thermistor 

Temperature 
setting range 

:

  Program  : 5 to 35

o

C in 0.5 

o

C steps  

  Frost  

: 5

 o

C or equal to lower limit  

(5

 o

C to 21

 o

C). Frost protection does not 

work in cooling mode. 

 

 

Temperature 
control accuracy

:

  ±0.5 K (nominal) @ 20

o

C, 50% load  

3 K 

Δ

/hour 

Room 
Temperature 
display range 

:

 From 0

 o

C to 50

 o

Control form 

:

  P + I (Propor Integral) 

Minimum ON 
time 

:

  10% of cycle time (min one minute), 

adjustable to 2 to 5 min (see installer set 
up) 

Cycle rate 

:

  Selectable by application (see installer 

set up) 

Wiring 

:

  Terminal block capable of accepting 

wires up to 2.5 mm

2

 

Wire access 

:

  Mains wiring – rear right. 

Low voltage wiring – rear right. 

Dimensions 

:

  133 x 89 x 26 mm (w x h x d) 

133 x 175 x 26 mm (w x h x d)            
(flap open) 

Environmental 

:

  Operating temperature range 0 to 40

o

Shipping and storage temperature range 
-20 to 55

o

 

Humidity range 10 to 90% rh, non-
condensing

  

Approvals 

:

  Designed to meet European EN 

approvals EN60730-1(Nov 2000), 
EN55014-1 (1997), EN55014-2 (2000) 

PRODUCT LAYOUT: 
 
1.  Day & Date Display 
2. Time 

Display 

3.  Dynamic Text Display (DTD) 
4.  Burner On Indicator 
5.  Battery Low Indicator 
6. Temperature 

Display 

7.  Temperature Change Buttons 
8.  Information Enquiry Button 
9. Slider 

Switch 

10.  Green OK Button 
11. Program Buttons 
12. Battery Cover 
13. Battery Compartment 
14. Holiday Button 
15. Party Button 
16. TRV Button 
17.  Copy Day Button 
18.  Day Select Button 
19.  Time Change Buttons 

Summary of Contents for CM901

Page 1: ... temperature in the house The TRV mode can either be pre programmed or switched manually TRV button allows activation or cancellation of the TRV mode manually whenever this type of control is required Party feature that temporarily maintains a selectable constant temperature for 1 23 hours then returns to normal operation Holiday button that provides energy savings by reducing to a constant temper...

Page 2: ...our Room Temperature display range From 0 o C to 50 o C Control form P I Proportional Integral Minimum ON time 10 of cycle time min one minute adjustable to 2 to 5 min see installer set up Cycle rate Selectable by application see installer set up Wiring Terminal block capable of accepting wires up to 2 5 mm 2 Wire access Mains wiring rear right Low voltage wiring rear right Dimensions 133 x 89 x 2...

Page 3: ...or 5 seconds Modify the cooling program as required Heat Pump Air conditioner 3 4 1 Set Minimum ON Time to 4 minutes 2 Set Cycle Hour to 3 2 Fan coil 6 1 No action required In Installer set up we can Set up specific applications Enable special features Establish support for optional accessories To enter the installer set up mode a Move the slider switch to the OFF position b Press and hold the INF...

Page 4: ...installer set up mode to the desired limit Temperature Offset If the thermostat is located in a hot cold location and cannot be moved because of wiring then the measured displayed temperature can be adjusted by 3 o C Useful if the homeowner wants the reading to match another appliance temperature display Set parameter n 12 category 1 in the installer set up mode to the desired offset value Proport...

Page 5: ...r Temp Limit 6 to 21 6 C to 21 C adjustment in 1 C steps 1 Optimisation 8 0P 0 Optimisation disabled 1 Optimisation enabled 1 Remote Control Setpoint e g via telephone module 9 tS 0 Disabled 1 Enabled 1 Second Temperature Sensor 10 SS 0 No sensor fitted 1 2 1 Outside Temperature Sensor fitted 2 Remote Temp Sensor fitted 1 Temperature Offset 12 tO 0 No offset 3 to 3 3 C to 3 C adjustment in 0 1 C s...

Page 6: ...r lights near doors or windows or in direct sunlight MOUNTING The CM907 TRV thermostat can be mounted directly on the wall surface or on an electrical wallbox WIRING The CM907 TRV thermostat is designed for fixed wiring only and must be installed in accordance with the latest l E E regulations Ensure the wiring connection to the supply is via a fuse rated at no more than 8 amps and a Class A switc...

Page 7: ...om EN0H 8555 UK07 R0 09 06 WIRING Description Model Logo Literature Availability Spec Sheet 7 day programmable thermostat Remote Temperature Sensor Outdoor Temperature Sensor CMT907A1082 F42010972 001 F42010971 001 Honeywell Honeywell French Dutch Multi lingual Multi lingual Aug 06 Sep 06 Sep 06 ENOH8555 ENOH8554 ENOH8553 ORDERING SPECIFICATION ...

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