Carrier GTR040-420 Specifikace stáhnout pdf (Strana 61)

3. Apply torque in one-third steps until required torque is

reached. Load all bolts to each one-third step before pro-

ceeding to next one-third step.

4. No less than one hour later, retighten all bolts to required

torque values.

5. After refrigerant is restored to system, check for refriger-

ant leaks with soap solution or Halide device.

6. Replace cooler insulation.

Condenser Coils

COIL CLEANING — For standard aluminum, copper and

pre-coated aluminum fin coils, clean the coils with a vacuum

cleaner, fresh water, compressed air, or a bristle brush (not

wire). Units installed in corrosive environments should have

coil cleaning as part of a planned maintenance schedule. In this

type of application, all accumulations of dirt should be cleaned

off the coil.

CLEANING E-COATED COILS — Follow the outlined pro-

cedure below for proper care, cleaning and maintenance of

E-coated aluminum or copper fin coils:

Coil Maintenance and Cleaning Recommendations

— Rou-

tine cleaning of coil surfaces is essential to maintain proper

operation of the unit. Elimination of contamination and

removal of harmful residues will greatly increase the life of the

coil and extend the life of the unit.

Remove Surface Loaded Fibers

— Surface loaded fibers or

dirt should be removed with a vacuum cleaner. If a vacuum

cleaner is not available, a soft 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 bent over) if the tool

is applied across the fins.

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

surface loaded coil will drive the fibers and dirt into the coil.

This will make cleaning efforts more difficult. Surface loaded

fibers must be completely removed prior to using low velocity

clean water rinse.

Periodic Clean Water Rinse

— A periodic clean water rinse is

very beneficial for coils that are applied in coastal or industrial

environments. However, it is very important that the water

rinse is made with very low velocity water stream to avoid

damaging the fin edges. Monthly cleaning as described below

is recommended.

Routine Cleaning of Coil Surfaces

— Monthly cleaning

with Environmentally Sound Coil Cleaner is essential to

extend the life of coils. It is recommended that all coils, includ-

ing standard aluminum, pre-coated, copper/copper or E-coated

coils are cleaned with the Environmentally Sound Coil Cleaner

as described below. Coil cleaning should be part of the units

regularly scheduled maintenance procedures to ensure long life

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

durability in the environment.

Environmentally Sound Coil Cleaner is non-flammable, hy-

poallergenic, non-bacterial, USDA accepted biodegradable and

100% ecologically safe agent that will not harm the coil or sur-

rounding 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.

Do not use high-pressure water or air to clean coils — fin

damage may result.

SIZES 080,090* WITH 18-BOLT HEADS

SIZES 080,090* WITH 14-BOLT HEADS

SIZES 100,110* WITH 22-BOLT HEADS

SIZES 100,110* WITH 16-BOLT HEADS

SIZES 130,150*

*And associated modular units.

Fig. 31 — Cooler Head Bolt Tightening Sequence (Typical Tube Sheet)

SIZES 170,190*

SIZE 210*

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 103 104

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