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)
6
1
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*, 9,12 cph
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* – 24 hr display
1 – AM/PM display
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 30
o
C can be reduced to 21
o
C to
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 5
o
C can be increased up to 16
o
C to
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 3
o
C (default is 1.5
o
C) to provide better
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-safe mode
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* – relay OFF
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.