Connecting The Unit To Hvac Ductwork; Condensate Drain Trap Connection - Mandik CPV Installation, Commissioning And Maintenance

MANDÍK CPV Installation, commissioning, and maintenance

6.5 CONNECTING THE UNIT TO HVAC DUCTWORK

The unit may only be connected to square ducts using flexible elements installed on every
supply / return on the unit (to prevent the transmission of vibration), or to round ducts using
round ports with gaskets that are installed on every supply / return on the unit.
The HVAC ductwork must be connected without tension, i.e. so that the weight of the
ductwork itself does not load the flexible element and the unit.
Flanged HVAC ductwork connections and flexible elements must be properly sealed.
Specification of the supply / return connections on the unit:
Fig. 1 outlets, right-hand design of CPV unit
ODA – fresh outdoor air
SUP – supply to space

6.6 CONDENSATE DRAIN TRAP CONNECTION

The condensate drain must be connected through a trap with a sufficient water column
height to ensure flawless operation.
A trap connection under vacuum must always be filled with water prior to use and after
extended shut-downs to ensure the condensate can drain freely.
Piping downstream of the trap must have an air gap and may not be directly connected to
sewerage piping.
The height of the unit above the floor / ground must be adapted to the necessary height of
the trap.
IZU 06/2021
Fig 2 outlets, left-hand design of CPV unit
ETA – return (exhaust) from the space
EHA – exhaust air to atmosphere
MANDÍK, a.s., www.mandik.cz
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