AERMEC Novatherm TRS251 Manuel D'installation Et Mise En Service page 44

No. Contents
00 Power to auto restart
01 Electrical heater (n.d.)
02 y pass opening temperature X
03 By pass opening temperature Y
04 Defrost interval
05 Defrost entering temperature
06 Defrost duration time
07 CO sensor function value
2
08 ModBus address
21 ERV models match selection
23 Fan speed control
24 Multifunction setting
25 Filter alarm setting
(*) For spare parts only. The value is correctly set for each machine during the testing phase.
Instruction of parameter Settings
1) Parameter 00 refers to power to auto restart 0: Invalid, 1: Valid.
2) Parameter 01 refers to Supply air electrical heater function 0: not available 1: available (function not available).
When connecting with supply air electrical heater, user should choose 1 to activate the electrical heater, and under the SA temperature
setting interface, the SA temperature can be set by pressing up and down button. The setting temperature range is 10 - 25° C.
3) Parameter 02 - 03 refers to automatic bypass function The bypass is opened on the condition that the outdoor temperature is
equal or higher than X (parameter 02) and less than X+Y (parameter 03). Bypass is closed on other conditions
4) Parameter 04-06 refers to automatic defrost function when EA side of heat exchanger temperature lower than -1°C (defrosting
entering temperature, parameter 05) and last for 1 minute, and the interval of defrosting is longer than 30 minutes (parameter 04),
the exhaust fan will run at high speed automatically for defrosting, and supply fan will stop, until EA side temperature higher than
defrosting entering temperature +15°C for 1 minute, or the defrosting time is longer than 10 minutes (parameter 06).
5)Parameter 07 refers to CO concentration control function (optional) After connecting the CO
2
CO symbol will display on the screen. If CO
2
(standby, speed 1, 2, 3 etc.), if the ERV is already in highest speed when CO
the highest speed running. CO
2500PPM (concentration/10 in steps of 10), recommended value 1000PPM.
6) Parameter 08 refers to the central control function to identify the address of ERV.
7) Parameter 21 to match the suitable program on PCB to the ERV model, refer to below table.
8) Parameter 23 refers to the fan speed display, for the ERV with BLDC motor, user should change value to 2 for 10 speed control
9) Parameter 24 refers to clear filter alarm and weekly timer setting:
•
setting this parameter = 1, the filter alarm is reset by timer, according to the setting chosen at the next parameter 25 (when the time
set in parameter 25 expires, the filter timer alarm appears, which can be reset by setting the parameter 24);
•
setting this parameter = 2 resets the weekly timer.
Once assigned the value 1 or 2, this parameter is repositioned to 0.
10) Parameter 25 refers to set the filter alarm timer.
Range
0-1
0-1
5-30
2-15
15-99
-9....+5
2-20
80-250
1-16
0-9
0 = 2 speeds
1 = 3 speeds
2 = 10 speeds
0 = n.d.
1 = Sweep filter alarm
2 = Sweep weekly timer
0 = 45 days
1 = 60 days
2 = 90 days
3 = 180 days
concentration is higher than setting value, then ERV returns back to the previous status
2
default setting value is 00, which means CO
2
MODELLO
TRS251
TRS351
TRS501
TRS651
TRS801
TRS1001
TRS1301
EN
Default
0 (*)
sensor (TRSQSW accessory), the
2
concentration higher than setting value, then ERV keeps
2
function off. setting range is 80- 250, which means 800-
2
CODICE ERV
5
4
3
7
8
9
8
Unit Record Position
1 Main control
0 Main control
19 °C Main control
3 °C Main control
30 Minute Main control
-1 °C Main control
10 Minute Main control
00 PPM Main control
1 Main control
Main control
2
0
0 Main control
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