Lennox CLIMATIC 400 User Manual

SET POINT THERMOSTAT FUNCTION DESCRIPTION
9
COOLING OPERATING MODE
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 starts to produce
cool water. When inlet water temperature gets below the set point the compressor stops. For example, when the set point = 11ºC and
differential = 2ºC, the compressor stops when inlet water temperature is 11ºC and starts when this temperature exceeds 13ºC.
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 starts to produce heat water.
When the inlet water temperature exceeds the set point, the compressor stops. For example: when the set point = 41ºC and differential = 2ºC,
the compressor stops when the inlet water temperature is 41ºC and starts when this temperature gets below 39ºC.
UNIT: The units of measure used.
VAR.: Minimum variation allowed.
MAX: Maximum value for the parameter.
MIN: Minimum value for the parameter.
DEF: The default value, factory set.
HEATING OPERATING MODE
AFFECTED PARAMETERS
NOTE: The units with 3 compressors and the Low water temperature kit work with 2 steps according to the units with 2 compressors.
MAIN DISPLAY
SET POINT
It shows:
Inlet water temperature
Active alarms
LEVEL 1
Cooling set point
Set point value
Heating set point
LEVEL 2 LEVEL 3
Set point value
Heating differential temperature
1
COMPRESSOR
UNIT VALUES
DESCRIPTION
Code that
appears on the
display
Cooling set point
Cooling differential temperature
Heating set point
2
COMPRESSOR
UNIT VALUES
Differential for second compressor
3/4
COMPRESSOR
UNIT VALUES
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:
Units with 1 compressor Units with 2 compressors Units with 4 compressorsUnits with 3 compressors
ºC
Compresor
ON
Compresor
OFF
Set point +
Diferencial
Set point
c03
Set point
c03
c05
Step 1
c03
Step 2
ºC
Set point
c03
c05
ºC
c03
c05
2xc03
Step 1 Step 3Step 2
Set point
c03
c05
Step 1
c03
Step 2
ºC
c03
c05
c03
c05
Step 3 Step 4
Set point
ºC
Units with 1 compressor Units with 2 compressors Units with 4 compressorsUnits with 3 compressors
Compresor
OFF
Compresor
ON
Set point +
Diferencial
Set point
ºC
c04
ºC
c04
c05
c04
Step 1Step 2
Set point
ºC
Step 1Step 3
2xc04
c04
c04
c05c05
Set point
Step 2
c05
Step 4
c04
c04
c04
c04
c05 c05
Step 1Step 2Step 3
MIN
20
0
---
0
10
9
MIN
20
0
0
0
1.5
DEF
1.5
1.5
10
42
14
MAX
43
25,5
25,5
25,5
0,1
0,1
0,1
0,1
0,1
VAR.
ºC
ºC
ºC
ºC
ºC
UNITMAX
15
43
25,5
25,5
---
11
---
2
DEF
2
41
8
MIN
20
0
0
0
14
MAX
43
25,5
25,5
25,5
1
DEF
1
1
9
43

Lennox CLIMATIC 400 Specifications

General

Brand	Lennox
Model	CLIMATIC 400
Category	Network Router
Language	English