Technibel CHG 11 - Page 12

GB
12
- for other applications, the following configurations are possible by modifying parameters:
a)
Complete shut-down ("
OFF") by remote contact (instead of "stand-by").
In the "CnF" configuration section, change the parameter H20 from 7 (remote stand-by) to 4 (remote OFF). In the
case of
remove "OFF" complete shut-down, the display is of
f. Only the decimal indicator lamp
flashes.
b) Selection of the stand-by / cooling mode using the display unit's keys.
In the "CnF" configuration section, change the parameter H27 from 1 to 0 (selection by keypad).
The operating mode is thus selected by successively pressing the "mode" button (2) according to the following
sequence:
--------->
stand-by ---> cooling ---> stand-by ------------
The stand-by mode is indicated by the extinction of the cooling mode indicator lamp.
•
Pre-ventilation:
-
generally speaking, in order to condition the air heat exchanger, the fan always starts at full speed a few seconds before
the compressor.
•
Anti short-cycle time delays:
- the compressor control features a time delay system in order to respect:
• a maximum number of starts per hour (12),
• a minimum stop time (150 seconds).
•
Control hysteresis:
- See the operating diagrams in paragraph 5.4.
- The hysteresis in both cooling mode are factory set at 3k. It is possible to modify it. To do this, change parameter C03
(cooling hysteresis) in the compressor section "CP".
•
"Dynamique" set point:
- by changing
H31 from 0 to 1, an automatic setpoint compensation system is activated based on the outside temperature,
- the following parameters allow the compensation slopes to be set:
•
Principle:
•
Example:
- Factory setting in heating mode.
•
Adjustment of the value measured by the temperature probes ("Offset):
- allows the difference between the value displayed and the verified value to be compensated.
Parameter Designation
Factory
setting
H32 = Set point Offset cooling mode 5 k
H34 = Outside temperature setting ("foot of slope") in cooling mode 25°C
H36 = Proportional strip in cooling mode + 10 k
< 0> 0
Outside
temperature
Set point offset
H32 > 0
H34
H36H36
H36
H32 = 5k
Outside temperature
Set point
Parameter Probe offset Units
Factory
setting
H39 Probe No. 1 offset Degree 0
H40 Probe No. 2 offset Degree 0
H41 Probe No. 3 offset Degree 0
H42 Probe No. 4 offset Degree/10 0