Loose or incorrect wiring connection can
cause explosion or fire when the unit starts
to work. Use only rated power voltage.
Don’t put fingers or objects into vents of
fresh air or exhaust air supply. Injury may
be caused by the rotation of the impeller.
Don’t install, move or re-install the unit by
yourself. Improper action may cause unit
instability, electric shock or fire.
Don’t change, disassemble or repair the
unit by yourself. Improper action may cause
electric shock or fire.
Running the unit continuously in an abnormal
status may cause failure, electric shock or
fire.
Switch off the power and breaker when you
clean the exchanger.
Don’t site intake supply vent in hot and hu-
mid
conditions , as it may cause failure, current
leakage or fire.
Don’t put any burner directly facing the
fresh air discharge, otherwise it may cause
an insufficient burning.
Isolate power during extended off periods
Isolate power and take care when cleaning
unit. (Risk of electric shock)
Observe guidelines and regulations relating
to incomplete combustion when use is asso-
ciated with fuel burning appliances.
Clean the filter regularly. A blocked filter may
result in poor indoor air quality.
Commissioning
1. Check the wiring after the installation works are completed, and there must be commissioning.
2. Turn on the power supply, and carry out the commissioning and operation according to controller
instructions. Check the working conditions of the blower, exhaust fan and bypass. The motor will stop
running for more than 10 seconds when the bypass valve of the ventilator is operating.
3. When abnormalities occur in commissioning, it can be thought that the connection is wrong. To
prevent electric shock, please turn off the special circuit breaker immediately and reconnect the wire
Precautions for Use
13
Precautions for Use
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