SystemAir SAVE VTR 300/B Installation Manual page 27

Only available for Room temperature control / Extract air temperature control modes.
ECO mode
• Configure ECO mode settings. Set heater offset. Default setting is 5°C.
Range: 0–10°C.
Fan Control
• Configure airflow and fan settings. Select fan control (airflow) type. Default setting is Manual (%).
Available types: Manual (%) / Manual rpm / Flow (CAV) / Pressure (VAV) / External
Setting
Manual
%
Airflow
measurement
unit.
–
P-Band
-
I-time
16-100%
Airflow level
settings for each
level: MAXIMUM
LEVEL, HIGH
LEVEL, NORMAL
LEVEL, LOW
LEVEL,
MINIMUM LEVEL
Manual Fan Stop — turn on or off manual fan stop, this function enables manual fan stop from HMI. Default setting
is OFF.
-
Pressure
Sensors —
configure sensor
voltage relation
to pressure.
Set value at
which fan alarm
occurs. Default
setting is None
-
Set K factor for
supply air fan
and extract air
fan. Default
settings are
based on unit
type.
Outdoor A purpose of this function is to protect the unit from freezing by creating an unbalanced airflow
Compensation at extreme winter temperatures or to limit supply of cold/hot outdoor air at extreme winter/
summer conditions with balanced ventilation.
Function operates by lowering the speed of supply air fan (SAF) or both supply and extract air
fans (SAF/EAFC) by value set in Stop Compensation Value setting (adjustable from 0% to
50%) if the outdoor air temperature (OAT) drops below adjustable value set in Start
Compensation Temperature setting (during winter from 0 °C to -30 °C / during summer
from 15 °C to 30 °C). This compensation reaches the maximum as soon as the outdoor air
temperature reaches the adjustable value set in Stop Compensation Temperature setting
(during winter from 0 °C to -30 °C / during summer from 15 °C to 30 °C)
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Flow (CAV)
RPM
rpm
l/s, m 3
0–3000 rpm 0–500 Pa
Default setting: 150 Pa
Off / 1–240 sec. Off / 1–240 sec.
Default setting: 5 Default setting: 5 sec.
sec.
500–5000 rpm
Sensor range (airflow unit)
-
Supply air fan control sensor:
Pressure at 0V: 0-500 Pa, default
setting 0 Pa
Pressure at 10V: 0-2500 Pa, default
setting 500 Pa.
Extract air fan control sensor:
Pressure at 0V: 0-500 Pa, default
setting 0 Pa.
Pressure at 10V: 0-2500 Pa, default
setting 500 Pa
-
SAF K-Factor
range: 0–1000
EAF K-Factor
range: 0–1000
Pressure
(VAV)
Pa
/h, cfm
-
23
Configuration |
External
%
–
–
0–100%
-
-