Bryant 450D - Manual

Installation Instructions
Installation of the Model 450D Gas Air Conditioning
Absorption unit consists of the following steps:
I. Locate and mount absorption unit.
II. Connect chilled water lines.
III. Electrical connections.
IV. Gas connections.
V. Charge system with water.
VI. Check-out and Operation.
VII. Adjust gas input.
VIII. Balance system.
IX. Purge Non-Condensibles.
Each of the above steps is discussed in detail in this
instruction. Read entire instruction before starting in­
stallation.
Remove four shipping bolts holding absorption unit to
crate base before placing unit on permanent mounting
slab.
NOTE: Unit is shipped with condenser fan guard in­
verted. Remove, place with convex side up and fasten.
I. LOCATE AND MOUNT^ABSORPTION UNIT
The absorption unit may be located at ground level'or
on the roof. Consult local codes for information con­
cerning proximity to property lines, height above roof,
obstructions, etc.
A, MOUNTING BASE '
1. Use non-combustible materials.
2. Base should be large enough that unit will not
overhang.
3. Poured concrete slab, minimum 4” thick, recom­
mended for ground installation. On roof installa­
tions a metal plate is satisfactory. Leave 4” to
8” clearance between roof top and metal plate.
4. Mounting base should not obstruct drain holes
in base angle of unit. Drainage required to dis­
pose of rain, melting snow, etc.
450D
bPi|ont
I
ft
EPN 39450D1
A. G. A. APPROVED
Certified in accordance cvith
A.R.I. standard 2d0—58.
C E R T I F I C A T I O N A P P L I E S
O N L Y W H E N U S E D W I T H
P R O P E R C O M P O N E N T S A S
S P E C I F I E D B Y M A N U F A C ­
T U R E R .
B. CLEARANCES
See Figures 1 and 2 for typical locations.
1. Absorption unit should have a minimum clearance
of 2 feet on all sides from any adjacent obstruc­
tion.
2. Avoid overhead obstruction. Place unit at least
2 feet from plumb line of any overhang.
3. Avoid locating the unit where hot condenser dis­
charge air can impinge on nearby obstruction and
mix with the cooler inlet air. This is particularly
important when two units are placed side by side.
EH 450-2 CANCELS: EH 450-1 EFFECTIVE 12/1/63