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COMMISSIONING
3.
Precautions
•
The diameter of drainpipe should meet the drainage requirement at least .
•
The drainpipe shou ld be heat-insulated to prevent atomization .
•
Drainpipe should be installed before installing indoor unit . After powering on, there is some water in water-receiver plate .
Please check if the drain pump can operate correctly .
•
All connection should be firm.
•
Wipe color on PVC pipe to note connection .
•
Climbing, horizontal and bending conditions are prohibited .
•
The dimension of drainpipe can't less than the connecting dimension of indoor drainpipe .
•
Heat-insulation should be done well to prevent condensation .
•
Indoor units with different drainage type can't share one convergent drainpipe .
II.
Drainpipe Trap
1.
If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap .
2.
Every indoor unit needs one drainpipe trap .
3.
A plug should be designed to do cleaning .
III.
Upwards drainage (drain pump)
1.
To ensure the gradient /00, the drainpipe can be lifted to 340mm . After upwards, place downwards, or it will cause malfunction
to drain pump .
Iv.
Convergent drainage
1.
The number of indoor units should be as small as possible to prevent the traverse main pipe overlong .
2.
Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system .
00 mm or above
DUCTAIR II - 0808-E
Plug
Below 00 mm
Indoor unit
Below ceiling
Air-ventilation
Gradient /00 or above
• 5 •
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