Managing Controller Functions; Managing The By-Pass; Anti-Frost Management; Post-Heating Management - S&P PROGRAM Instrucciones De Uso

Screens
State
Mon xxxyyyzzz
Time
Table
Program
Tue xxxyyyzzz
Wed xxxyyyzzz
Thu xxxyyyzzz
Fri xxxyyyzzz
Sat xxxyyyzzz
Sun xxxyyyzzz
Low speed
Medium speed
High Speed
Clock
Alarms (red light flickering)
* W = Writing; R = Reading

7. MANAGING CONTROLLER FUNCTIONS

7.1. MANAGING THE BY-PASS

In equipment with built-in by-pass, the control can manage the by-
pass in three different modes: Winter, Summer or nodefined. To
change mode, follow the steps described in section 6.5. CONFIGU-
RATION OF PARAMETERS.
In winter, when the outside air
temperature in greater than the
temperature of the return air
+2ºC, the by-pass opens (Te >
Tr +2ºC). In summer, when the
outside air temperature is below
that of the return air -2ºC, the
by-pass opens (Te < Tr -2ºC).
If you have selected non-de-
fined season, the by-pass will
open if the difference between
the outside temperature and
the return temperature is lower
than 2ºC (Te-Tr│< 2ºC).
Value W/R
Parameters
type (*)
Te (exter.) R
Tr (return) R
Tx (expel.) R
Fan (supply) 055% R
Fan (exhaus.) 055% R
Humidity On/Off R
Bypass On/Off R
Heat 1 On/Off R
Heat 2 On/Off R
CO2 VOC 0000 R
C1 00.00 low off W
C2 05.00 med on W
C3 07.00 high on W
C4 W
C5 W
C6 W
C7 W
C8 W
Copy day W
Off W
040% W
060% W
Day Thu W
Hours 18 W
Minute 45 W
Communication OK/KO R
Te (external) OK/KO R
Tr (return) OK/KO R
Tx (expelled) OK/KO R
Filters OK/KO R
Fans OK/KO R
Description
External temperature (measured by probe)
Return temperature(measured by probe)
Expelled temperature (measured by probe)
% supply fan speed
% exhaust fan speed
Possibility of condensation
By-pass status
1st post-heating stage
2nd post-heating stage
Value of CO2 in ppm (measured by probe)
"Example:
Change C2
Time 05.00
Fan speed Med
Post-heating on"
Copy parameters from a day
Low speed value. The value is taken for the setting 'low' in C1, C2, C3,...
Medium speed value. The value is taken for the setting 'med' in C1, C2, C3,...
Medium speed value. The value is taken for the setting 'high' in C1, C2, C3,...
Week day and hour set
Communication failure between console and elect. board
Failure in external temperature probe
Failure in return temperature probe
Failure in expelled temperature probe
Filters failure (dirty filters, pressure probe failure,...)
Fans failure

7.2. ANTI-FROST MANAGEMENT

To prevent the formation of
frost on the heat exchanger,
the equipment is continuously
measuring the temperature of
the extracted air (Tx). When the
temperature falls below 1ºC,
the anti-frost function will start:
the extractor fan turns on 100%
flow and the blower fan will
stop. If the equipment has a double frequency converter, the ex-
tractor fan will slow down instead of stopping. This situation will
continue until the temperature of the extracted air exceeds 3ºC
(factory setting).

7.3. POST-HEATING MANAGEMENT

With electric batteries
The equipment's electric batteries are 1 or 2-stage. The battery
stages will switch on or off according to the following conditions:
• 1st stage: When the temperature of the return air (Tr) is one
degree lower than the set temperature (Ts), the 1st stage of the
battery will switch on. (Tr-Ts < -1ºC). This stage of the battery will
not switch on unless the blowing flow is greater than 40% of the
maximum flow (for three-phase motors) or equal to or greater
than the first speed (for 3-speed motors).
• 2nd stage: When the temperature of the return air (Tr) is five
degrees lower than the set temperature (Ts), the 2nd stage of
the battery will switch on. (Tr-Ts < -5ºC). This stage of the battery
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