Caution – Bryant 569J User Manual

Page 45

The repair procedure requires the use of MAPP gas and

torch (must be supplied by servicer) instead of conventional

oxyacetylene fuel and torch. While the flame temperature

for MAPP is lower than that of oxyacetylene (and thus

provides more flexibility when working on aluminum), the

flame temperature is still higher than the melting

temperature of aluminum, so user caution is required. Follow

instructions carefully. Use the heat shield.

Replacing NOVATIONt Condenser Coil —

The service replacement coil is preformed and is equipped

with transition joints with copper stub tubes. When

brazing the connection joints to the unit tubing, use a wet

cloth around the aluminum tube at the transition joint.

Avoid applying torch flame directly onto the aluminum

tubing.

Routine Cleaning of Round-Tube Plate Fin (RTPF)

Coils —

Periodic cleaning with Totaline

environmentally sound coil

cleaner is essential to extend the life of RTPF coils. This

cleaner is available from the Replacement parts division as

part number P902-0301 for a one gallon container, and part

number P902-0305 for a 5 gallon container. It is

recommended that all RTPF coils be cleaned with the

Totaline environmentally sound coil cleaner as described

below.
NOTE: Do NOT use Totaline

environmentally sound coil

cleaner, or any other coil cleaner on NOVATION coils. See

“NOVATION

Coil

Cleaning

and

Maintenance”

for

instructions on cleaning NOVATION coils.
Coil cleaning should be part of the unit’s regularly

scheduled maintenance procedures to ensure long life of

the coil. Failure to clean the coils may result in reduced

durability in the environment.

Avoid the use of:

coil brighteners

acid cleaning prior to painting

high pressure washers

poor quality water for cleaning

Totaline

environmentally

sound

coil

cleaner

non-flammable, hypoallergenic, non-bacterial, and a

USDA accepted biodegradable agent that will not harm

the coil or surrounding components such as electrical

wiring, painted metal surfaces, or insulation. Use of

non-recommended coil cleaners is strongly discouraged

since coil and unit durability could be affected.

Totaline Environmentally Sound Coil Cleaner

Application Equipment —

gallon garden sprayer

water rinse with low velocity spray nozzle

UNIT DAMAGE HAZARD
Failure to follow this caution may result in corrosion

and damage to the unit.
Harsh chemicals, household bleach or acid or basic

cleaners should not be used to clean outdoor or indoor

coils or any kind. These cleaners can be very difficult

to rinse out of the coil and can accelerate corrosion at

the fin/tube interface where dissimilar materials are in

contact. If there is dirt below the surface of the coil

use the Totaline environmentally sound coil cleaner as

described above.

CAUTION

UNIT RELIABILITY HAZARD
Failure to follow this caution may result in reduced

unit performance.
High velocity water from a pressure washer, garden

hose, or compressed air should never be used to clean

a coil. The force of the water or air jet will bend the

fin edges and increase airside pressure drop.

CAUTION

Totaline Environmentally Sound Coil Cleaner

Application Instructions:
NOTE:

Proper eye protection such as safety glasses is

recommended during mixing and application.

1. Turn off unit power.
2. Remove screws holding rear corner post and top cover

in place. Pivot top cover up 12 to 18 inches (305 to 457

mm) and support with a rigid support. See Fig. 43.

3. Remove all surface loaded fibers and dirt with a vacu-

um cleaner. If a vacuum cleaner is not available, a

soft non-metallic bristle brush may be used. In either

case, the tool should be applied in the direction of the

fins. Coil surfaces can be easily damaged (fin edges

can be easily bent over and damage to the coating of

a protected coil) if the tool is applied across the fins.

NOTE: Use of a water stream, such as a garden hose,

against surface loaded coil will drive the fibers and dirt
into the coil, making cleaning efforts more difficult.
Surface loaded fibers must be completely removed prior
to using low velocity clean water rinse.

4. Using a low velocity garden hose thoroughly wet

finned surfaces with clean water. Be careful not to

bend the fins.

5. Mix Totaline environmentally sound coil cleaner in a

gallon garden sprayer according to the instruc-

tions included with the cleaner. The optimum solution

temperature is 100°F (38°C).

NOTE: Do NOT USE water in excess of 130°F (54°C),

as the enzymatic activity will be destroyed.

6. Thoroughly apply Totaline

environmentally sound

coil cleaner solution to all coil surfaces including the

finned area, tube sheets and coil headers.

569J