Bryant 108-451 - Manual

Installation Instructions
GAS-FIRED AIR CONDITIONER
451P
SIZE 108
SERIES B
bri|ant
I 39451D8
Rev. 4/12/65
Installation of the Model 108-451 Gas Air Conditioning Absorption Unit consists of the following steps:
I. Locate and Mount Absorption Unit VI. Check-Out and Operation
II. Connect Chilled Water Lines VII. Adjust Gas Input
III. Electrical Connections VIII. Balance System
IV. Gas Connections IX. Purge Non-Condensibles
V. Charge System with Water
Each of the above steps is discussed in detail in this instruction. Read the eiitin
starting installation. ^^^s^u(^ton ^^or
P V
I. LOCATE AND MOUNT ABSORPTION UNIT
The absorption unit may be located at ground level
or on the roof. Consult local codes for information
concerning proximity to property lines, height above
roof, obstructions, etc.
A. M O U N T I N G B A S E
1. Use non-combustible materials.
2. Suggested types of mounting base for ground
installation:
a. Precast concrete lintels.
Use three lintels the depth of unit, one each
urider right and left end of unit and one at center
of unit.
b. Concrete blocks.
Use one block at each corner of unit plus blocks
under the two long sides midway between the
corner blocks.
c. Concrete slab.
Minimum thickness 4 inches.
3. For installation on a roof or other combustible
material leave sufficient clearance between unit
sub-base and roof for proper air circulation. Use
precast concrete lintels or concrete blocks as
described in paragraph 2 above or steel beams.
Check local codes.
DO NOT
REMOVE
hax&-.a_m.i.aijn.um—clear
B . C L E A R A N C E S
1. Absorption unit should
ance of 2 feet on all sides from any adjacent ob­
struction.
2. Avoid locating the unit where hot condenser
discharge air can impinge on nearby obstructions
and mix with the inlet air supply. The condenser air
discharges upward. The unit should be located out­
side of the plumb line from any over-hang.
II. CONNECT CHILLED WATER LINES
A . M A T E R I A L S
Refer to section on “Freezing Weather Protection”
at the end of this instruction.
1. Piping
a. Polyethylene Plastic Pipe — use medium
density flexible pipe whose wall thickness ap­
proximates Schedule 40 pipe (Commercial Stand­
ard CS 197-60). Pipe must be virgin plastic. Do
not use pipe manufactured from re-claimed plas­
tic.
b. Copper - satisfactory substitute.
c. Galvanized - satisfactory substitute.
2. Fittings
a. Galvanized - use when possible.
b. Brass - satisfactory substitute.
c. Nylon - satisfactory substitute.