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CM67 CHRONOTHERM
EN0R 8498 R2 11/98 4
Special Features Description What to do if we wish this
feature
Optimisation (Variable
Start Time)
Adaptive Intelligence
recovery TM
The Chronotherm will adjust the start time in the
morning/ afternoon so the desired temperature is
reached by the start of the program period e.g. Time
7:00, Temp 21
o
C. The Chronotherm will monitor the
accuracy of the start up and use this information to
modify the calculation for the following day by
changing the ramp rate (initial 3 K/hr) .The system will
restrict the start time to a max of 3 hours.
Optimisation will not work in cooling mode.
Set parameter. 1 in the installer set-
up mode to 1.
AM-PM/ 24hr Display Change display format (default 24hr) Set parameter n.3 in the installer set -
up mode to 1.
Pump exercise When enabled the Pump Exercise will switch the relay
on for 1 minute at 12:00 if the relay has not been
switched on since 12:00 the previous day.
While in Holiday mode the Pump Exercise feature, if
enabled, will operate.
Set parameter n.8 in the installer set -
up mode to 1.
Upper Temperature
Limit
The normal upper temperature limit of 30
o
C can be
reduced down to 21
o
C to save energy. Useful for small
commercial premises.
Set parameter n.11 in the installer set
-up mode to the desired limit.
Lower Temperature
Limit
The normal lower temperature limit of 5
o
C can be
increasedupto16
o
C to protect the inhabitants from
cold. Useful if the inhabitants include the elderly,
children or disabled.
Set parameter n.12 in the installer set
-up mode to the desired limit.
Temperature Offset If the Chronotherm 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.13 in the installer set
-up mode to the desired offset value.
Proportional Band Width 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
Set parameter n.15 in the installer set
-up mode to the desired value.
Optional
Accessories
Description What to do if we wish this
feature
Outside Temperature
Sensor
An Outside Temperature Sensor can be fitted to your
CM67
to allow the homeowner to display the outside
temperate on the Chronotherm display by using the
INFO
i button. CM67 will read the outside temperature
every 10 minutes. Outside temperature display range is
from -30
o
Cto+45
o
C. The sensor can be connected up
to 50 meters from the unit.
1. Fit the sensor (instructions
included in the sensor package)
2. Set parameter n. 10 in the
installer set-up mode to 1
Remote Temperature
Sensor
A Remote Temperature Sensor can be fitted to your
CM67
to allow the Chronotherm to control temperature
from another room or space where it is inconvenient to
locate the CM67
It will read the remote sensor every 1
minute. The sensor can be connected up to 50 meters
from the unit. Useful for commercial premises where
the public may tamper with the product.
1. Fit the sensor (instructions
included in the sensor package)
2. Set parameter n. 10 in the
installer set-up mode to 2
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.
1. Fit the ATS module
2. Set parameter n. 4 in the installer
set-up mode to 1
4


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