WARNING:
BEFORE PROCEEDING WITH
INSTALLATION AND OPERATION, READ ENTIRE
MANUAL CAREFULLY. FAILURE TO DO SO CAN
CAUSE INJURY OR PROPERTY DAMAGE
1. working principle
Armstrong’s Brazed Plate Heat Exchanger (
abx
) consists of
chevron plates of acid-resistant stainless steel. Every other
plate is reversed so the ridges of the herringbone pattern
intersect one another on adjacent plates forming a lattice
on contact points. When these points are vacuum brazed
together, two separate systems of channels for two media flow
in counter-current are formed. The lattice structure causes
vigorous turbulence, thus ensuring maximum heat transfer.
The
abx
is a highly efficient, corrosion-resistant, and pressure
resistant heat exchanger. The standard
abx
is designed to
meet
435
psi (
30
bar),
392°f (200°c),
with the largest model
capable of handling a maximum flow capacity of
600
gallons/
min (
42
liter/sec).
warning:
The Heat Exchanger may have sharp edges.
Exercise caution when handling
2.
connection types
warning:
During operation do not exceed maximum pressure
and temperature limits shown on the nameplate. Failure to do
so can cause injury or property damage.
The temperature of the brazing or welding process must not
exceed the melting point of the internal brazing material. Use
a wet towel around the connection and the late pack to reduce
the amount of heat transmitted to the pack during installation.
1
Clean the soldering assembly surface at the copper pipe and
heat exchanger connections. Remove oil or other buildup
with a degreasing agent. Polish the surfaces to remove
oxide.
2
Apply the flux to the surface with a brush to remove and
revent oxidation.
3
For refrigerant applications, use dry nitrogen gas on the
refrigerant side.
4
Heat the soldering area to the soldering temperature, about
649°c (1,200°f)
.Temperatures above this can melt the
brazing materials and result in damage.
5
Keep the pipe in a fixed position and apply the filler material
3. installation guide
In order to achieve high thermal efficiency and high heat
transfer rates,
abx
has to be installed in a counter flow
direction.
Always install your
abx
vertically especially for a refrigerant
system. This is done to secure the
abx
and keep minimum
amount of water below the connector.
File No:
113.82
Date:
july 15, 2020
Supersedes:
113.82
Date:
october 28, 2011
ABX
BR AZED PLATE HEAT EXCHANGERS
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I N S TA L L AT I O N A N D O P E R AT I N G I N S T R U C T I O N S
threaded connections soldered connections
