Справочник Пользователя для Carrier 50PTH

3

8. Provide an unobstructed path to the unit within the closet

or mechanical room. Space should be sufficient to allow

removal of unit if necessary.

9. Provide ready access to water valves and fittings, and

screwdriver access to unit side panels, discharge collar,

and all electrical connections.

10. Where access to side panels is limited, pre-removal of the

control box side mounting screws may be necessary for

future servicing.

STORAGE — If the equipment is not needed immediately at

the jobsite, it should be left in its shipping carton and stored in a

clean, dry area of the building or in a warehouse. Units must be

stored in an upright position at all times. If carton stacking is

necessary, stack units a maximum of 3 high. Do not remove

any equipment from its shipping package until it is needed for

installation.
PROTECTION — Once the units are properly positioned on

the jobsite, cover them with either a shipping carton, vinyl film,

or an equivalent protective covering. Cap open ends of pipes

stored on the jobsite. This precaution is especially important in

areas where painting, plastering, or spraying of fireproof mate-

rial, etc. is not yet complete. Foreign material that accumulates

within the units can prevent proper start-up and necessitate

costly clean-up operations.

Before installing any of the system components, be sure to

examine each pipe, fitting, and valve, and remove any dirt or

foreign material found in or on these components.

INSPECT UNIT — To prepare the unit for installation, com-

plete the procedures listed below:

1. Compare the electrical data on the unit nameplate with

ordering and shipping information to verify that the

correct unit has been shipped.

2. Do not remove the packaging until the unit is ready for

installation.

3. Verify that the unit’s refrigerant tubing is free of kinks or

dents, and that it does not touch other unit components.

4. Inspect all electrical connections. Be sure connections are

clean and tight at their terminations. 

5. Loosen compressor bolts until the compressor rides freely

on springs. Remove shipping restraints.

6. Remove the four 

1

/

4

 in. shipping bolts from compressor

support plate (two bolts on each side) to maximize vibra-

tion and sound alternation.

7. Remove any blower support cardboard from inlet of the

blower.

8. Locate and verify any accessory kit located in compressor

and/or blower section.

9. Remove any access panel screws that may be difficult to

remove once unit is installed.

LEGEND

NOTE: All units have spring compressor mountings, TXV (thermostatic expan-
sion valve) expansion devices, and 

1

/

2

 and 

3

/

4

-in. electrical knockouts.

DO NOT store or install units in corrosive environments or

in locations subject to temperature or humidity extremes

(e.g., attics, garages, rooftops, etc.). Corrosive conditions

and high temperature or humidity can significantly reduce

performance, reliability, and service life. Always move

units in an upright position. Tilting units on their sides may

cause equipment damage.

Failure to remove shipping brackets from spring-mounted

compressors will cause excessive noise and could cause

component failure due to added vibration.

Two-Stage, Scroll

58

78

81

144

156

VAR

VAR

VAR

VAR

VAR

1

/

2

1

/

2

1

1

1

9 x 7

11 x 10

11x10

11x10

11x10

.76

.92

1.24

1.56

1.56

3

/

4

3

/

4

1

1

1

1

/

2

1

/

2

1

/

2

1

/

2

1

/

2

28 x 20

28 x 25

32 x 25

36 x 25

36 x 25

1 — 28 x 24

1 — 28 x 30

2 — 16 x 30

1 — 16 x 30
1 — 20 x 30

1 — 16 x 30
1 — 20 x 30

266

327

416

443

443

276

337

426

453

453

18 x 31

20 x 25

20 x 40

20 x 45

20 x 45

2 — 18 x 18

1 — 12 x 20
1 — 20 x 24

1 — 18 x 20
1 — 20 x 24

2 — 20 x 24

2 — 20 x 24

266

327

416

443

443

276

337

426

453

453

ECM — Electronically Commutated Motor
HWG — Hot Water Generator
VAR

— Variable Speed