Dexon Canada Air Systems Inc
OWMDH Series Use Manual
Version 07.2019
Page 3
2.1 OPERATOR SAFETY
The installation, operation and maintenance of this unit must be carried out by qualified
personnel only and in accordance with national and local electrical codes.
For your safety read
the supplied Owner’s Manual and Installation Instructions before installing.
Ensure all required lock-out procedures are followed.
Take note of all the safety labels on the unit.
If entering a confined space always follow confined space entry procedures.
Switch the blower heater in
to “Manual” mode to purge the space before entering. NEVER leave
the unit in “Manual” mode unattended.
2.2 EQUIPMENT SAFETY
Store the blower heater in a safe dry environment prior to installation.
Ensure that the factory preset continuous airflow meets the onsite requirements.
We strongly recommend providing surge protection.
When installing/servicing ensure all latches are used to secure the door.
We do not recommend installing on a down pipe smaller than the discharge outlet.
Ensure there is adequate distance between intake louvers and pressure relief vent/gooseneck.
Follow regular maintenance procedures as outlined in section 5.1 of this manual.
Locations with higher debris accumulation such as vegetation, construction, road dust or salt
may require more monitoring and maintenance.
Do not leave the blower heater in
“Manual” mode unattended.
2. OPERATOR AND EQUIPMENT SAFETY
IMPORTANT: The blower heater must run continuous. NOT all components in the unit are
corrosive resistant and rely on the continuous positive pressure of the unit to keep the
damaging moist and corrosive gases from entering the blower heater. If the blower heater
cannot be immediately started or run continuously, on site actions must be taken to
prevent corrosive gases and moisture from entering the blower heater.
WARNING:
EXPLOSION HAZARD; SUBSTITUTION OF COMPONENTS MAY IMPAIR
SUITABILTY FOR CLASS 1, DIV. 2.
