3 - Installation
6
Once the chilled beam is lowered into the ceiling grid and is in its
final position, the air and water connections can be made.
3.4 Air connections
STEP ONE —
Make the air connection with either sheet metal or flexible duct.
Flexible duct should be limited to a maximum length of 5ft.
The air connections should include a minimum of one duct diameter
length of straight ductwork upstream of the beam connection to
prevent excessive turbulence and noise generation.
3.5 Water connections
The chilled beam is fitted with two or four water pipes which termi-
nate in either NPT threaded male connections or straight pipe ends
for field soldering. Each coil is factory tested for leakage and pro-
vided clean and capped.
STEP ONE —
Identify the warm and/or chilled water
supply
*
connections
on the beam — noted by labels
on the casing. Blue indicates chilled water,
red indicates warm.
STEP TWO —
Remove the plastic cap before making the
final water connections.
STEP THREE —
Make water connections. If NPT connections apply, do NOT over-
tighten — applying excessive force on the water pipes may damage
the heat exchange coil.
NOTE:
See section 3.8 (page 7) for typical installation photographs.
DID302 2-pipe connnection
(can be cold or hot)
DID302 4-pipe connnection
(Standard Construction)
Note: Air duct connection location does not affect coil connection configuration
(See submittal for additional information on pipe handings)
Active Chilled Beam
Pipe Configurations
DID301-302 Installation, Operation & Maintenance Manual (USA) (06/2015)
Note
Flexible duct, when used in conjunction with flexible
hose for water connections (see detail below),
enables easier alignment of the beam with the
ceiling grid!
Note
Active chilled beam systems operate at higher
terminal pressures than diffusers in standard
VAV systems therefore the ductwork and
connections feeding the beam must be thoroughly
sealed to prevent excessive leakage.
R
S
2-pipe
-right hand
4-pipe
-right hand
R
4-pipe
-left hand
2-pipe
-left hand
R
S
R
S
R
S
R
S
S
Chilled water
Warm water
Chilled Water - Return
Chilled Water - Supply