Test Run; Maintenance - Toshiba VN-U00151SY-E Installation Manual

10

Test run

 Before performing a test run
• Before turning on the power supply, carry out the following procedure.
Using 500 V-megger, check that resistance of 1 MΩ or more exists between the terminal block of the power
supply and the earth (earthing).
If resistance of less than 1 MΩ is detected, do not run the unit.
• When a test run is performed together with Air conditioners, follow the Installation Manuals of the Air
conditioners.
 Test run
Confirm that the unit operates properly referring to the Owner's Manual of the Heat recovery ventilation unit.
Push [ON/OFF] button to start operations
Perform the following operation mode operations to confirm that there are no problems with the test run.
Operation item Display
1. Starting operation
2. Changing the
ventilation fan speed
3. Changing the
ventilation mode
4. Stopping operation
77-EN
Operation
The operation lamp lights up, then the Heat recovery
ventilation unit starts running.
(The ventilation monitor is displayed on the top
screen.)
[ ] [ ]
Each time push the button or ,
the ventilation fan speed changes as follows:
→ →
When the unbalance ventilation fan speed is valid,
the following appears on the display:
→
[ ] [ ]
Each time push the button or , the
ventilation mode changes as follows:
→ →
The operation lamp goes off, then the Heat recovery
ventilation unit stops running.
– 39 –
11

Maintenance

Running the Heat recovery ventilation unit for a long period causes the filter or heat exchange element to become
clogged with dust. If the filter or heat exchange element is clogged, the ventilation amount is reduced and
ventilation effect will be deteriorated.
Clean the filter and heat exchange element regularly according to the extent of dust accumulation.
WARNING
Before performing maintenance, stop the unit, then turn off the breaker.
• Otherwise, an electric shock or injury may result.
Do not pour or spray water or detergent on the electric parts.
• Otherwise, an electrical leakage may occur and a fire or electric shock may result.
CAUTION
Wear protective gloves when performing maintenance.
• Otherwise, an injury may result.
 Filter sign reset
" " appears on the detailed display to tell the time for cleaning the filter.
When the filter check mark is displayed (filter check reset)
• When " " is displayed, be sure to clean the filters and then do
a reset.
• If the Heat recovery ventilation units are operated while "
displayed, then "Filter check." is displayed. Push an operation
button while it is displayed or leave it for at least 5 seconds and
the display will disappear.
1
In "Menu", select "Filter sign reset", and push [
Fix]
2
Push [ Set/Fix]
" is
Set/
78-EN