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G
Unit Conversion
In the case of converting standard unit to downthrow unit, follow the steps as stated below:
UATYQ250, 350, 450, 550, 600, 700 & 900
1 1
Ñ Ñ Ñ
Remove the
side panel
4 4
Cover the horizontal
return opening with the
cover and screw tightly.
Refer Note 2.
Lastly, install back the side panel.
Install back the pulley belt. Adjust the belt tension. Lastly, install back the side panel. Refer Note 1.
For downthrow conversion, belt length need to be changed.
For unit with standard pulley, belt length
Shaft to shaft distance for downthrow, C-C = b mm
UATYQ250
a
1432
b
425
Sealant such like gasket (field supply) shall be placed in between the metal cover and flange. Besides that, weather-proof
silicone shall be applied on all the joints, screw holes and gaps to ensure water-tight condition.
Refer Engineering Data Book for blower curve and technical data of variable pitch pulley.
18
Remove the
Pulley Belt
For UATYQ250:
The two side plates are screwed
on the blower support as shown
Remove the side
panel at return side
Unscrew the vertical return
cover from the base panel
= a mm
UATYQ350
UATYQ450
1457
1382
430
345
2 2
Ç Ç Ç
For UATYQ250, 350, 450, 550, 600, 700 & 900
3 3
É É É
Install back the pulley
belt. Adjust the belt
tension by moving the
motor base.
UATYQ550
UATYQ600
1500
1500
420
420
Remove screws
at both sides
Detached
blower
Detached the
blower support
The two downflow structure
are screwed to blower
Cover the
horizontal supply
opening with the
blower support
that detached
from the blower
and screw tightly.
Refer Note 2.
Turn the blower to face bottom.
Screw at both sides.
UATYQ700
UATYQ900
1500
440
1500
445
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