Carrier 50PG03-07 Especificações descarregar pdf (Página 37)

Table 17 -- Fan Rpm at Motor Pulley Settings*

UNIT

50PG

DRIVE

Low 736

High 1001

Low 736

High 1128

Low 910

High 1173

Low 978

High 1261

Low 1128

High 1438

MOTOR PULLEY TURNS OPEN

_ 1 11/2 2 2_ 3 31/2 4 4_ 5

710 685 660 634 609 583 558 533 507 482

966 932 897 863 828 794 759 725 690 656

710 685 660 634 609 583 558 533 507 482

1095 1062 1028 995 962 929 896 863 829 796

878 847 815 784 753 721 690 659 627 596

1139 1104 1070 1035 1001 966 932 897 863 828

949 920 891 863 834 805 776 748 719 690

1227 1194 1161 1128 1095 1062 1028 995 962 929

1095 1062 1028 995 962 929 896 863 829 796

1409 1380 1351 1323 1294 1265 1236 1208 1179 1150

*Approximate fan rpm shown, based on 1725 rpm motor.

NOTE: Factory pulley speed setting is at 5 turns open.

Table 18- Accessory/FlOP Electric Heat Static

Pressure (in. wg)

AIRFLOW

(Cfm)

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

PRESSURE DROP (in. wg)

0.01

0.02

0.03

0.04

0.05

0.07

0.08

0.10

0.11

0.13

0.15

SERVICE

Before performing service or maintenance operations on

unit, turn off main power switch to unit. Electncal shock

could cause personal injury.

Puron® (R-410A) refrigerant systems operate a higher

pressures than stan&u'd R-22 systems. Do not use R-22

service equipment or components on Puron refrigerant

equipment. If service equipment is not rated for Puron

refrigerant, equipment damage or personal injury may

msult.

Cleaning -- Inspect unit interior at beginning of each hea-

ing and cooling season and as operating conditions require. Re-

move unit top panel and/or side panels for access to unit interiol:

COIL MAINTENANCE AND CLEANING RECOMMEN-

DATION- Routine cleaning of coil surfaces is essential

to maintain proper operation of the unit. Elimination of

contamination and removal of hmmful residues will greatly in-

crease the life of the coil and extend the life of the unit. The fol-

lowing m;_intenance and cleaning procedures are recommend-

ed as part of the routine maintenance activities to extend the

life of the coil.

Remove Surface Loaded Fibers -- Surface loaded fibers or

dirt should be removed with a vacuum cleanel: 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 direc-

tion of the fins. Coil surfaces can be easily &imaged (fin edges

can be easily bent over and damage to the coating of a protect-

ed coil) 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 stremn to avoid

&imaging the fin edges. Monthly cleaning as described below

is recommended.

Routine Cleaning of Coil Surfaces -- MontNy cleaning with

Totaline® environmentally sound coil cleaner is essential to

extend the life of coils. This cleaner is available from Carrier

Replacement parts division as part number lX)02-0301 for a

one gallon containel: and part number P902-0305 for a 5 gallon

containel: It is recommended that all coils, including standard

_fluminum, pre-coated, copper/copper or E-coated coils be

cleaned with the Totaline environmentally sound coil cleaner

as described below. Coil cleaning should be part of the unit's

reguldy scheduled maintenance procedures to ensure long life

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

rability 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 is non-flamma-

ble, hypoallergenic, nonbacteri_fl, and a USDA accepted biode-

gradable agent that will not harm the coil or surrounding com-

ponents such as electrical wiring, painted metal surfaces, or in-

sulation. Use of non-recommended coil cleaners is strongly

discouraged since coil and unit durability could be affected.

Totaline Environmentally Sound Coil Cleaner Application

Equipment

• 21/2 gallon garden sprayer

• water rinse with low velocity spray nozzle

Harsh chemicals, household bleach or acid or basic clean-

ers should not be used to clean outdoor or indoor coils of

any kind. These cleaners can be very difficult to rinse out

of the coil and can accelerate corrosion at the fin/tube inter-

face where dissimilar materials are in contact. If there is

dirt below the surface of the coil, use the Totaline environ-

mentally sound coil cleaner as described above.

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