Daikin IM 1093-1, Installation And Maintenance Manual

IM 1093-1 • SINGLE DUCT VAV TERMINALS 4 

www.DaikinApplied.com

I

nsTallaTIon

I

nsTallaTIon

Receiving Inspection

Prior to removing the shipping material, visually inspect the 

packing materials. There should be a black plastic strip wrapped 

in the clear plastic shrink wrap. If this black plastic strip is 

missing, the shipment may have been repacked by the shipper 

and you should make note of this on the shipping documents 

and inform the delivering carrier. After unpacking the terminal, 

check it for shipping damage. If any shipping damage is found, 

report it immediately to the delivering carrier. Store units in a 

clean, dry location prior to installation. Units with controls are 

not recommended for use in ambient temperatures greater 

than 95°F. For protection of controls, do not store in ambient 

temperatures greater than 135°F. Caution: Do not use the 

flow sensor, connecting tubing, or damper shaft as a lift point. 

Damage to the flow sensor or controls may result.  

Hanging/Installation Requirements

 IMPORTANT

If  equipped  with  pneumatic  controls,  the  orientation  of  the 

terminal is critical. The pneumatic controls must be mounted 

right side up. The single duct unit must be level  or – 

10 degrees of horizontal, both parallel to the air flow and at 

the right angle of air flow. The control side of the terminal is 

labeled with an arrow indicating UP. Unless otherwise noted, 

most  analog  and  digital  controls  may  be  installed  in  any 

orientation. Check with the local Daikin representative for 

verification.

 CAUTION

Cautions indicate potentially hazardous situations, which 

can result in personal injury or equipment damage if not 

avoided . 

The  equipment  is  heavy  and  counted  in  the  ceiling.  Use 

caution and follow OSHA and SMACNA installation guidelines. 

Unless local building codes require hangers, the smaller 

size basic single duct terminals may be light enough to be 

supported by the ductwork itself. However, when accessory 

modules, such as DDC controls, hot water coils, or sound 

attenuators are included, the single duct terminal should be 

supported directly. Straps screwed directly into the side of the 

terminal, trapeze hangers, or the method prescribed for the 

rectangular duct on the job specifications may be used (See 

Figure 1

 and 

Figure 2

). The MQTHI5 Single Duct Terminal is 

not suitable for outdoor use. 

Figure 1: Strap-Hangers