1
EN0R 8508 R0 07/99
CM61RF
WIREFREE CHRONOTHERM
PRODUCTSPECIFICATION SHEET
FEATURES
• Attractive slim styling makes it ideal for location in
any home
• Proven narrow band, multi-frequency synthesiser
based technology for communication jamming
avoidance
• As no wired connection needs to be provided
between room unit and boiler, CM61RF can be
installed without disrupting the room decor
• 6 daily independent time and temperature level
changes let you set 6 time and temperatures pairs to
suit your life style
• Temporary setpoint temperature change overrides
the programmed temperature till the next switch
point
• Holiday button provides energy savings by
reducing the temperature for 1 to 99 days when
people are on holiday, returning to normal operation
(AUTO or MANUAL) on the day of return
• EEPROM memory holds the user program
indefinitely even when the batteries are removed
• OFF mode has an integral fixed frost protection
setting at minimum 5
°
°°
°C (installer adjustable) so that
pipes in the house will never freeze in winter.
• 24...230V 8A resistive, 3A inductive SPDT relay
provides compatibility with most domestic central
heating systems without stocking many different
models.
•
T
he wall mounted holster allows removal of the
CM61RF from the wall for armchair programming
• The HC60 relay box may be surface or wallbox
mounted
• Frost protection is ensured when the slider is in the
OFF position. Frost protection setpoint may be
adjusted by installer (minimum setting 5
o
C)
• Installer Set-Up Mode allows extra functions to be
set at the discretion of the installer to match the
consumers applications:
• Optimisation
• Pump Exercise
• Upper / Lower Setpoint Limit Adjust
• Temperature offset
• Minimum ON time
• Cycle rate
• Heat / Cool Operation
• Proportional Band Width
• Failsafe mode for communication loss
• Every room unit can be bound with several relay
boxes (e.g. to control several electric heating
panels)
• CM61RF can be used with Automatic Time Setting
module (Q6667B1007)
T
he
C
M
6
1RF Chronotherm is designed to provide automatic
time and temperature control of heating or cooling systems
in villas and apartments. It can be used as a part of system
in conjunction with gas and oil boilers, circulation pumps,
variety of valves and actuators or electric heating systems
(<10A).
The radio frequency controlled
CM61RF system consist of
a room unit T6661C and relay box R6660C (HC60). No
wiring to the room unit is required. Installer needs to wire
only the relay box to a controlled device (e.g. boiler) and
mount the room unit in a suitable location where the RF
communication is reliable.
The
CM61RF display, buttons and slider layout are identical
to CM61 ‘wired’ chronotherm The unit is ideal for consumers
who want reliable precise temperature control from a simple
to program easy to use product.
CM61RF CHRONOTHERM
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EN0R 8508 R0 07/99
CM61RF CONTROLS/DISPLAY LAYOUT
Room Unit T6661C
Relay Box R6660C
Honeywell
Push Button and
RelayStatus LED
SPECIFICATIONS
T6661C Room unit
Batteries : 2 x 1.5 V IEC LR6 (AA) Alkalinecells
Batterylife : 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)NTCthermistor
Temperature
control accuracy
:
+
0.5 K (nominal) @ 20oC, 50% load 3K
∆/hour
Temperature
setting range
: Program : 5 to 30
o
Cin0.5oCsteps
Frost : 5
o
C or equal to lower limit (5oC
to 16
o
C). Frost protection does not work
in coolingmode
Room
Temperature
display range
: From 0
o
Cto40oC (Display resolution
0.5
o
C)
Control form
: Proportional + 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
-20to55
o
C
Humidity range 0 to 90% rh, noncondensing
Approvals
: Designed to meet European EN
a
pprovals 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!
W
iring :Cable terminals for mains and relay
wiring for max 2.5 mm
2
wire
Fail-safe mode
:
O
ff or cycling depending on the CM67RF
system set-up
Environmental
: Operating temperature range 0 to 50
o
C
Shipping and storage temperature range
-20to55
o
C
Humidity range 0 to 90% rh, noncondensing
IP30
Approvals
: Designed to meet European EN
a
pprovals EN60730-1(1995), EN55014-1
(1997), EN55014-2 (1996)
CM61RF CHRONOTHERM
Honeywell Control Systems Limited http://europe.hbc.honeywell.com
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
3
EN0R 8508 R0 11/98
INSTALLER SET-UP
This feature allows you to adjust CM61RF system to match the specific requirements of the application. Installer Set-up allows
❑ Set-up specific applications parameters
❑ Enable special features
❑ Establish support for ATS module
Specific Applications Setting Description
Cycle/
Hour
Minimum
ON time
(in minutes)
Heating Gas Boilers
(<30kW)
61
Number of cycles per hour and minimum ON time are the key
parameters which allow the adjustment of the control algorithm
to meet specific application requirements.
Cycles/Hour – Parameter n.9; settings range: 3, 6*,9,12cph
Minimum ON time – Parameter n.2, setting range:1*,2,3,4,5 min
Oil Boiler 3 4
Thermal Actuator 12 1
Zone valve 6 1
Electric heating 12 1
Air
conditionin
g
Heat Pump/
Air conditioner
3 4 CM61RF is designed to perform heating or cooling operation. To
switch from heating to cooling set parameter n.6 in the installer
set-up mode to 0. If you switch between heating and cooling the
Special Features Description Setting
Adaptive Intelligent
Recovery TM
The CM61RF will adjust the start time at upward setpoint changes so the
desired temperature is reached at the programmed time e.g. 7:00
temperature 21
o
C.The chronotherm will monitor the start-up period and
use this information to modify the start time calculation for the next
upward setpoint change. The system will restrict the start time to a max of
3 hours before the programmed comfort time
AIR does not function in cooling mode.
0* – disabled
1 – enabled
AM-PM/ 24hr Display Change display format (default 24hr)
0* –24hrdisplay
1–AM/PMdisplay
Pump exercise When enabled the Pump Exercise will switch the relay on for 1 minute at
12:00 a.m. if the relay has not been switched on since 12:00 the previous
day.
0* - disabled
1 – enabled
Upper Temperature
Limit
The normal upper temperature limit of 30oC can be reduced to 21oCto
save energy. Useful for small commercial premises.
21-30
o
C
Factory setting 30
o
C*
Lower Temperature
Limit
The normal lower temperature limit of 5oCcanbeincreasedupto16oCto
protect the inhabitants from cold. Useful for nursing homes.
5-16
o
C
Factory setting 5
o
C*
Temperature Offset If the Chronotherm is located in a hot/cold location and cannot be moved
then the measured/ displayed temperature can be adjusted by +/- 3
o
C.
-3 - +3
o
C
Factory setting 0
o
C*
Proportional Band
Width (PB)
The PB can be adjusted up to 3oC (default is 1.5oC) to providebetter
temperature control (less overshoot). Useful for:
a. Well insulated homes with over-sized heating systems
b. Air systems with fast response
1.5-3.0 K (adjustment
step 0.1 K)
Factory setting1.5 K*
Fail-safemode
The CM61RF allows you to set the fail-safe mode of operation of the
heating system when radio communication is lost. By default HC60 output
relay will be switched OFF in case of communication loss. Alternatively
you may choose to cycle the boiler at 2 min ON and 8min OFF. Useful
when the building is not occupied for long periods of time and there is a
high risk of frost damage.
0* –relayOFF
1 – relay cycles
Accessory Description Setting
Automatic Time
Setting (ATS)
Module
The ATS module picks up a time signal daily from a European transmitter,
so you never need to set or adjust the time.
0 – no accessory
1 – ATS module
*Factory settings indicated with bold font.
CM61RF CHRONOTHERM
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EN0R 8508 R0 07/99
DIMENSIONS
Room unit T6661C Relay box R6660C
90 mm
90 mm
30 mm
43 mm
Wiring frame
Honeywell
INSTALLATION
The CM67RF is a radio frequency device and for the best performance should be installed in an open space. Leave at least 30cm distance
from any metal objects including wall boxes and at least 1 metre from any other electrical equipment e.g. radio, TV, PC etc.
It is recommended that the R6660C relay box is installed before commencing with the room unit installation (refer to appropriate Installation
Guide).
R6660C Relay box T6661C room unit
WIRING
The R6660C relay box is designed for fixed wiring only and
must be installed in accordance with latest l.E.E.
regulations. Ensure the wiring connection to the supply is
via a fuse rated at no more than 10 amps and a Class "A"
switch (having contact separation of at least 3 mm in all
poles).
IMPORTANT
1. The installer must be a trained service engineer
2. Disconnect the power supply before beginning
installation
CM61RF CHRONOTHERM
Honeywell Control Systems Limited http://europe.hbc.honeywell.com
Newhouse Industrial Estate
Motherwell ML1 5SB
United Kingdom
5
EN0R 8508 R0 07/99
WIRING
ORDERING SPECIFICATION
Description Model Logo Literature Spec Sheet
Radio Frequency
Chronotherm (1 day)
System Pack
Y6661C1001 Honeywell English ENOR8508
RF Chronotherm
room unit (1 day)
T6661C1006 Honeywell English ENOR8508
RF Chronotherm
relay box (HC60)
R6660C1001 Honeywell English ENOR8508
Automatic Time
Setting Module
Europe
Q6667B1007 - Multi-
Language
ENOR8501
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