Airflow Humidivent H50N Instructions For Installation, Maintenance And Use - Page 14

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10.5 Humidity
setting
adjustment
-Models
H50, H50N,
H51 and H56.
The humidistat
has a range of 40 to 95%
relative
humidity,
but is factory
set to 70%
RH. It can be adjusted
to be more sensitive
(switches
at lower
RH) or less sensitive
(switches
at higher
RH) to suit the user.
To adjust
sensitivity.
10.5.1 Disconnect
the fan from the electricity
supply.
10.5.2 Remove
the front grille.
10.5.3 Turn the adjuster
knob clockwise
to
increase,
and anti-clockwise
to decrease
sensitivity
(see Fig. 16).
10.5.4 Re-assemble
the fan, switch
on the
electricity
supply
and re-test
to Section
10.1.6
(model
H50),
10.1.7 (model
H50N),
10.1.8
(model
H51) or 10.1.9 (model
H56).
10.3 Switch
on the electricity
supply
and test
again.
If the fan still fails to operate
correctly
do not tamper
with it. Contact
the Airflow
Service
Department
on High Wycombe
(01494) 525252
10.4 Timer adJustment
models
01, 06, L 11
and H51.
10.4.1 Disconnect
the fan from the electricity
supply.
10.4.2 Remove
the front grille.
10.4.3 Turn the adjusting
knob clockwise
to
increase
and anti-clockwise
to decrease
the
operating
period
(see Fig. 16). The timer
is
factory
set to operate
for about 25 minutes
and may be adjusted
from a minimum
of
about 5 minutes
to a maximum
of about
45 minutes.
10.4.4 Re-assemble
the fan, switch
on the
electricity
supply
and r9-test
to Section
10.1.1
(model
01 ), Section
10.1.4 (model
06),
Section
10.1.5 (model
L 11) or Section
10.1.8
(model
H51 ).
Modules are fitted to all models. Each is
identified by a label on the front face and the
variants are shown below: The module is
shown in Fig. 2
Fig.16
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