Table of Contents
Advertisement
The connections to the heating coil must be
equipped with shut off valves [included in
SchwankAir valve kits] to allow problem free
removal.
A vent valve should be connected at a high point
in the pipe system. Air valves are not included.
For vertical installation and bottom water
connection it is not possible to bleed the coil
in the unit. Ensure that the water coil is filled
with water and that no air remains, prior to
commissioning. See fig. 4.
Our recommended solution is to use a
T-connection and shut off valves. Small air bubbles
may remain, but will disappear with normal
operation.
NOTE: Care must be taken when connecting the
pipes. Use a pipe wrench or a similar tool to grip
the air curtain connections to prevent straining of
the pipes and subsequent water leakage during
connection to the water supply pipe-work.
Adjustment of the air curtain and
airflow
The direction and speed of the airflow should be
adjusted considering the load on the opening.
Pressure forces affect the airstream and force it
inwards towards the premises [when the premises
are heated and the outdoor air is cold].
The airstream should, therefore, be directed
outwards to withstand the load. Generally
speaking, the higher the load, the greater the
angle required.
Basic setting fan speed
The fan speed when the door is open is set using
the control. Note that the airflow direction and the
fan speed may need fine adjustment depending
on the loading of the door.
Filter [VW]
The water coil is protected against dirt and
blockage by an air filter which covers the coil
face. In environments where the filter needs
cleaning often, it is advisable to use an external
intake filter [see accessories pages], which
provides an easier maintenance, since the unit
does not need to be opened.
Service, repairs and maintenance
For all service, repair and maintenance first carry
out the following:
1. Disconnect the power supply.
2. The front is locked in the open position with
the front hatch hook, see fig 1A or removed
completely, see fig. 1B. The service hatch is
removed by loosening the screws.
3. After service, repairs and maintenance fasten
the service hatch and the front.
Maintenance
Unit with water heating
The appliance filter should be cleaned regularly
to ensure the air curtain effect and heat emission
from the device. How often depends on local
circumstances. A clogged filter is not a risk, but
the appliance function can fail.
1. Disconnect the power supply.
2. Remove the screws and raise the front panel.
The front is locked in open position with the front
hatch hook. See Fig. 1A.
3. Remove the filter and vacuum clean or wash it.
If the filter is clogged or damaged, it may need
to be changed.
All units
Since fan motors and other components are
maintenance-free, no maintenance other than
cleaning is necessary. The level of cleaning can
vary depending on local conditions.
Undertake cleaning at least twice a year. Inlet
and exhaust grilles, impeller and elements can
be vacuum cleaned or wiped using a damp
cloth. Use a brush when vacuuming to prevent
damaging sensitive parts. Avoid the use of strong
alkaline or acidic cleaning agents.
schwankgroup.com/schwankair
Advertisement
Table of Contents
