Dettson Chinook C15-M-V Instructions D'installation Et Manuel Du Propriétaire page 32

indicate an attempt at communications. If the L.E.D. does
not blink, communications cannot be established.
9.7 MEMORY CARD
WARNING
Do not replace the furnace control or memory card
of the furnace with a furnace control or memory
card of another furnace or another component
(e.g. a memory card from a condenser or air
handler). The wrong furnace control or memory
card may specify parameters which will make
the furnace run at undesired conditions including
(but not limited to) reduced airflow during heating
causing excessive undesired operation of the
main limit control. Further, the memory card
is specific to the model number and BTU input
rating for a specific furnace and this information
should not be transported from one furnace (or
component) to another.
Furnace shared data is defined as data specific to a given
furnace that is critical for proper furnace operation. More
specifically, it is data which defines the operation of the
furnace and is unique to a given furnace platform and
model. The most critical of these data are the coefficients
that control the blower operation (i.e. define the blower
speed-torque operation). Because of this, each furnace
control is programmed with furnace shared data for that
model furnace only. The furnace shared data from any
given furnace can NOT be transferred to another furnace
for any reason. Doing so can adversely affect operation
of the furnace. Further, if no furnace shared data is
present, the furnace will not operate in any mode and
a fault will be displayed.
9.8 REPLACING FURNACE
CONTROL
In the event that the furnace control must be replaced, the
memory card must be detached from the original furnace
control and retained with the furnace. Failure to save and
connect the memory card properly to the replacement
control may result in no operation or undesired operation
of the furnace.
When replacing the furnace control, be sure to match
the DIP switch settings of the original control on the
replacement.
9.9 DIP SWITCH
The integrated furnace control MAY not recognize switch
setting changes while energized.
DIP switches are ignored on communicating system,
except for test mode. In communicating system, all
configurations can be made through the thermostat.
Refer to thermostat manual for details.
9.9.1 Heat adjust
DIP switch bank S1 is used to fine-tune the airflow in
the heating mode. The switches of bank S1 can be
set to adjust either the minimum heat rate airflow or the
maximum heat rate airflow or both. Also, every firing rate
in between these points will be adjusted accordingly.
NOTE:All DIP switches on S1 will be shipped in the "OFF"
position. See Table 15.
Table 15 – Air Flow Adjustement - S1
FACTORY DEFAULT
LOW HEAT ADJUSTMENT ONLY (40%)
HIGH HEAT ADJUSTMENT ONLY (100%)
ADJUSTMENT TO ALL RISE RATE
9.9.2 Cooling airflow select
Cooling airflow selection
communicating system. However, if you are installing
a communicating system and you wish to test a specific
CFM to mesure your duct system efficiency, you can use
24v connection and tables 21.
These DIP switches are used to select the appropriate
cooling airflow based on the amount required. The switch
settings do not affect cooling airflow when installed in
fully communicating system. In that case, the condenser
supplies the information for cooling airflow which is pre-
set at the factory and not adjustable.
The target cooling airflow will be determined by the
adjustments of S3-1 and S3-2. The airflow achieved may
be less than the target depending of the static pressure
in the supply air duct. Refert to table 21.
The adjustment of the cooling can also be made with S3-
3 and S3-4. Those switches will increase of decrease
CFM by 10%. Refer to table 16.
Table 16 – Cooling Airflow Adjust
S3-3 S3-4
OFF OFF
ON OFF
OFF
ON
9.9.3 Heat rise adjust
S4-1 HEAT RISE ADJUST – This DIP switch is used to
select desired temperature rise in the heating mode.
31
S1-1 S1-2 S1-3 S1-4
OFF OFF OFF OFF
OFF ON OFF OFF
OFF ON OFF ON
OFF ON ON OFF
OFF ON ON ON
ON OFF OFF OFF
ON OFF OFF ON
ON OFF ON OFF
ON OFF ON ON
ON ON OFF OFF
ON ON OFF ON
ON ON ON OFF
ON ON ON ON
can't be done
DESCRIPTION
0%
+10%
ON -10%
ON 0%
DESCRIPTION
NO
ADJUSTMENT
-7.5%
-15%
+7.5%
+15%
-7.5%
-15%
+7.5%
+15%
-7.5%
-15%
+7.5%
+15%
on