Active Chilled Beams
Installation Instructions
36CBAL,J
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Storage and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PREINSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Prepare Jobsite for Unit Installation . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 1 — Install Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 2 — Connect Chilled Beams to the
Piping System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 3 — Connect Chilled Beams to the
Primary Air Ducting System . . . . . . . . . . . . . . . . . . 14
ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Airflow Balancing Procedure . . . . . . . . . . . . . . . . . . . 14
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SAFETY CONSIDERATIONS
SAFETY NOTE
Air-handling equipment will provide safe and reliable
service when operated within design specifications. The
equipment should be operated and serviced only by authorized personnel who have a thorough knowledge of system
operation, safety devices and emergency procedures.
Good judgement should be used in applying any manufacturer’s instructions to avoid injury to personnel or damage to equipment and property.
GENERAL
Chilled beam systems are suitable for use in sensible cooling load applications or where individual temperature control is
required.
Active (supply air) chilled beams operate with induction,
where incoming primary air induces room air through the beam
coil. The primary and induced room airflow is then discharged
through the outlet slot of the beam into the room, resulting in a
total airflow of 3 to 4 times greater than the primary airflow.
Systems with chilled beams are suitable for use in sensible
cooling load applications and/or where there is a requirement
for individual temperature control. In offices with normal room
heights, the maximum cooling capacity is 25 to 29 Btuh per
sq ft of floor area. The limit is set by the maximum permissible
velocity in the occupied zone, therefore high room heights can
provide the opportunity for supplying a greater cooling effect.
Cooling load calculations must take in account the building’s dynamic and thermal storage capacity. Simply adding the
“gross loads” together gives an estimate of cooling load which
can be approximately 50% too large.
The primary airflow is responsible for the air quality in the
room while also providing basic cooling. The maximum recommended difference for the primary air is 18° F. In certain
cases, the supply-air temperature can be increased by a few degrees with a falling outdoor temperature. The chilled beam
covers the rest of the cooling load. The water flow is varied according to the load using a room sensor.
Compared with a system where the cooling duty is supplied
entirely by air, a chilled beam system reduces the space required for air-handling plant and ducting.
Storage and Handling — Inspect for damage upon re-
ceipt. Shipping damage claims should be filed with shipper at
time of delivery. Store in a clean, dry, and covered location. Do
not stack cartons. When unpacking units, care should be taken
that the inlet collars and water connections do not become
damaged. Do not remove protective film from painted surfaces
until installed.
Initial Inspection — Once items have been removed
from the carton, check carefully for damage to duct connections, coils, or controls. File damage claim immediately with
transportation agency and notify Carrier.
Installation Precaution — Check that construction de-
bris does not enter unit or ductwork. Accumulated dust and
construction debris distributed through the ductwork can adversely affect unit operation.
Codes — Install units in compliance with all applicable
code requirements.
PREINSTALLATION
Prepare Jobsite for Unit Installation —
time and to reduce the possibility of costly errors, set up a complete sample installation in a typical room at jobsite. Check all
critical dimensions such as pipe, wire, and duct connection requirements. Refer to job drawings and product dimension
drawings as required (see Fig. 1-12). Instruct all trades in their
part of the installation.
Refer to Table 1 and Fig. 1-12 for unit data.
To save
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53360007-01 Printed in U.S.A. Form 36CB-3SI Pg 1 7-14 Replaces: New
Table 1 — 36CBAL,J Unit Physical Data
Fig. 1 — 36CBAL, 2-Pipe, Size 02 Unit Dimensions
a36-612
PRIMARY AIR END CONNECTION
LEGEND
NOTE: Dimensions shown in inches unless otherwise indicated.
CWR — Chilled Water Return
CWS — Chilled Water Supply
HWR — Heated Water Return
HWS — Heated Water Supply
36CBAL,J UNIT SIZE 02 04 06
Beam Length (ft) 246
Beam Width (ft) 2
Coil Connection Size (in.)
Dry Weight (lb) 40 58 76
Wet Weight (lb) 56 74 92
1
/
2
2
Fig. 2 — 36CBAL, 2-Pipe, Size 04 Unit Dimensions
PRIMARY AIR END CONNECTION
LEGEND
NOTE: Dimensions shown in inches unless otherwise indicated.
CWR — Chilled Water Return
CWS — Chilled Water Supply
HWR — Heated Water Return
HWS — Heated Water Supply
A36-613
3
Fig. 3 — 36CBAL, 2-Pipe, Size 06 Unit Dimensions
a36-614
PRIMARY AIR END CONNECTION
LEGEND
NOTE: Dimensions shown in inches unless otherwise indicated.
CWR — Chilled Water Return
CWS — Chilled Water Supply
HWR — Heated Water Return
HWS — Heated Water Supply
4
Fig. 4 — 36CBAL, 4-Pipe, Size 02 Unit Dimensions
A36-615
PRIMARY AIR END CONNECTION
LEGEND
NOTE: Dimensions shown in inches unless otherwise indicated.
CWR — Chilled Water Return
CWS — Chilled Water Supply
HWR — Heated Water Return
HWS — Heated Water Supply
5
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