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9. ATTACH DUCT TO UNIT

- Raise the brace assembly and slip the

extension

duct

over

diameter of the spigot underneath the

rooftop unit. (Fig 11 & 12).

When attaching the duct to

the unit take care to ensure it

forms a tight, unbroken seal

that doesn't allow discharge air to

escape.

- Engage and tighten the four M8 bolts

with the threaded inserts in the rooftop

unit.

- Recommended tightening torque of

the bolts is 7 N.m (5.2 lb-ft). As a rough

guide the bolts should be tightened so

that the unit compresses the roof seal

gasket to approximately half its height.

- As the bolts are tightened ensure that

the hold down bars slot into their

recesses in the brace (Fig 12).

10. ATTACH PLENUM COVER

- Connect the main cover of the plenum to

the duct by attaching the blue suspension

cord to the lug on the inside of the cover

(Fig 13). Reach into the unit, grab the

control cable plug and pull down to

-This will allow you to use two hands to

connect the control cable (see Fig 14).

- Connect the key pad control cables

together (see below). Be sure that the plug

joins the corresponding wire colours

together (yellow to yellow, red to red etc.)

Failure to properly plug the

control cables together correctly

will result in loss of power to

display

the

outside

Fig 11: Raise the duct assembly up to the roof hole, ensuring the paper extension duct work

Fig 12: Then engage the four M8 bolts, taking care to ensure the hold down bars slot into their

forms a tight fit around the spigot underneath the unit.

recesses

Fig 13: Shows the positioning of the lug inside the plenum

cover

Pull the suspension cord down from inside the unit and

hook it through the lug shown inside the plenum housing.

This will allow two free hands to connect the control cables

together.

Ensure hold down bars

engage in recess