CM61RF
CHRONOTHERM
2
EN0R 8508 R0 07/99
CM61RF
CONTROLS/DISPLAY LAYOUT
Room Unit T6661C
Relay Box R6660C
Honeywell
Push Button and
Relay Status LED
SPECIFICATIONS
T6661C Room unit
Batteries
:
2 x 1.5 V IEC LR6 (AA) Alkaline cells
Battery life
:
2 years typical (Duracell MN1500)
Battery
replacement
:
Program retained in EEPROM
RF operation
band
:
ISM (433.05-434.79 MHz)/Transmitter
RF
communication
technology
Narrow band, multi-frequency
synthesiser based for jamming
avoidance
RF
communication
range
:
30 m in a residential building
environment
Time display
:
24 hour or 12 hour AM/PM format
Time keeping
accuracy
:
Typically better than 10 minutes per year
Program
:
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
control accuracy
:
+
0.5 K (nominal) @ 20
o
C, 50% load 3K
∆
/hour
Temperature
setting range
:
Program : 5 to 30
o
C in 0.5
o
C steps
Frost : 5
o
C or equal to lower limit (5
o
C
to 16
o
C). Frost protection does not work
in cooling mode
Room
Temperature
display range
:
From 0
o
C to 40
o
C (Display resolution
0.5
o
C)
Control form
:
Propor Integral (PI)
Minimum ON
time
:
10% of cycle time (min one minute),
adjustable to 2 to 5 min (see installer set
up)
Cycle rate
:
3, 6 (default), 9, 12. Selectable through
the installer set up mode.
Environmental
:
Operating temperature range 0 to 40
o
C
Shipping and storage temperature range
-20 to 55
o
C
Humidity range 0 to 90% rh, non-
condensing
Approvals
:
Designed to meet European EN
approvals EN60730-1(1995), EN55014-1
(1997), EN55014-2 (1996)
:
Radio type Approval to EN300 220
R6660C Relay box
Power supply
:
230V AC +10% - 15%, 50Hz
Switch type
:
SPDT potential free
Electrical rating
:
24-230 V AC, 10 A resistive, 3 A
inductive o.6 p.f.
Electrical life
:
300 000 operations at specified load
RF operation
band
:
ISM (433.05-434.79 MHz)/Receiver
RF binding
method
TEACH-IN procedure initiated during
system installation, room unit ID data
stored in EEPROM
Wire access
:
from the rear (wall box mounting)
:
side wiring using wiring frame
Unit available for fixed wiring only!
Wiring
:
Cable terminals for mains and relay
wiring for max 2.5 mm
2
wire
Fail-safe mode
:
Off or cycling depending on the CM67RF
system set-up
Environmental
:
Operating temperature range 0 to 50
o
C
Shipping and storage temperature range
-20 to 55
o
C
Humidity range 0 to 90% rh, non-
condensing
IP30
Approvals
:
Designed to meet European EN
approvals EN60730-1(1995), EN55014-1
(1997), EN55014-2 (1996)