Set Point Thermostat Function Description; Cooling Operating Mode; Heating Operating Mode; Affected Parameters - Lennox CLIMATIC 200 User Manual

SET POINT THERMOSTAT FUNCTION DESCRIPTION

MAIN DISPLAY
It shows:
Inlet water temperature
Active alarms
See page 7, for adjustment of set point of the system. The water temperature is thermostatically controlled via a set point and a tolerance range
(differential). The operation of these parameters is shown in the following diagrams:
Compresor
OFF
Compresor
ON
c03
ºC
Set point Set point +
Diferencial
Set point
Operation with one compressor is as shown in the diagram taking into account that the temperature about which the controller takes over is
the inlet water temperature. When this temperature exceeds the set point + tolerance range (differential) the compressor
cool water. When inlet water temperature gets below the set point the compressor
differential = 2ºC, the compressor
Compresor
ON
Compresor
OFF
c04
ºC
Set point + Set point
Diferencial
Operation with one compressor is as shown in the diagram taking into account that the temperature about which the controller takes over is
also the inlet water temperature. When this temperature gets below the set point - Differential, the compressor
When the inlet water temperature exceeds the set point, the compressor
the compressor when the inlet water temperature is 41ºC and
The units with 3 compressors and the Low water temperature kit work with 2 steps according to the units with 2 compressors.
Cooling set point
Heating set point
Cooling differential temperature
Heating differential temperature
Differential for second compressor
LEVEL 1
SET POINT
Step 1
Step 1 Step 2
c03 c03
ºC
c05
Set point
when inlet water temperature is 11ºC and
Step 2 Step 1
c04 c04
ºC
c05
Set point
Cooling set point
Heating set point
Step 2 Step 3
2xc03
c03
c03
c05 c05
. For example, when the set point = 11ºC and
when this temperature exceeds 13ºC.
Step 3 Step 2 Step 1
2xc04
c04
c04
c05 c05
. For example: when the set point = 41ºC and differential = 2ºC,
when this temperature gets below 39ºC.
MAX: Maximum value for the parameter.
MIN: Minimum value for the parameter.
DEF: The default value, factory set.
1
COMPRESSOR COMPRESSOR
UNIT VALUES UNIT VALUES
MIN MAX DEF MIN
10
15 11 9
20
41
20 43
0
0 2
25,5
0
25,5
0 2
--- ---
--- 0
9
LEVEL 2
Step 1 Step 2
c03
c03
ºC
c05 c05
Set point
Step 4 Step 3
c04
c04
ºC
c05
Set point
to produce heat water.
UNIT: The units of measure used.
VAR.: Minimum variation allowed.
2 3/4
COMPRESSOR
UNIT VALUES
MAX DEF MIN MAX
10
14 8 14
43 20 43
42
0
1.5
25,5 25,5
0
25,5 1.5 25,5
25,5 25,5
1.5
0
LEVEL 3
Set point value
Set point value
Step 3 Step 4
c03
c03
ºC
c05
to produce
Step 2 Step 1
c04
c04
ºC
c05 c05
Set point
DEF UNIT VAR.
0,1
9 ºC
43 0,1
ºC
1
0,1
ºC
1
0,1
ºC
1 0,1
ºC