Xpelair Xcell 150 QV, Installation And Operating Instructions Manual

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6 Technical Data
6.1 Air volume flow rates can be adjusted on the PCB by service technicians only:
The adjustment potentiometers (3x blue) for the
supply air fan and (3x red) for the exhaust air fan
are shown on the picture opposite. Port pins for
connection of the voltmeter are also provided.
6.2 Adjustment of air volume flow rate (m
3
/h) for supply air / exhaust air fans:
Depending on the fan speed selected (1, 2 or 3) the EC fans have a specific control voltage of between
1.7 V minimum up to a maximum of 10.0 V. The control voltage for the supply air and exhaust air fans is
adjusted via each set of three potentiometers on the PCB (speeds 1, 2 and 3).
S1 – Supply air speed 1 - blue pot and S 1 – Exhaust air speed 1 - red pot
S2 – Supply air speed 2 - blue pot and S 2 – Exhaust air speed 2 - red pot
S3 – Supply air speed 3 - blue pot and S 3 – Exhaust air speed 3 - red pot
Turning the potentiometer to the right increases the control voltage of the EC fans and turning it to the left
reduces the control voltage.
6.3 Port pins for the connection of a voltmeter:
Via port pins on the PCB, the control voltage for each speed setting can be measured. The control volt-
age for the exhaust air and supply air fans can be set separately at between 1.7 V and 10.0 V as de-
scribed above. See also the wiring diagrams in section 7.
6.4 Factory speed settings:
Speed 1: 50 m3/h - Low speed – preferably at night or during periods of absence
Speed 2: 100 m3/h - Normal daytime operation
Speed 3: 150 m3/h - Boost setting for increased air exchange
Note:
When the MVHR is being used with a manual 2-speed switch, only speeds 2 and 3 will apply.