Service, Service cleaning, Lubrication – Carrier 50EQ User Manual

Page 9

Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

Advertising
background image

Table 4 — Electrical Data, Units 50EQ034

UNIT MODEL

NOMINAL

VOLTS/PH/HZ

VOLTAGE

RANGE

COMPR

NO. 1, 2

OUTDOOR

FAN

MOTOR

INDOOR

FAN

MOTOR

EXHAUST

FAN

MOTOR

HEATERS

POWER SUPPLY

»

Circuit

No. 1

Circuit

No. 2

Min

Max

RLA

LRA

Qty

FLA

Hp

FLA

Hp

FLA

FLA

MCA

MOCP

MCA

MOCP

10

30 8

230

250

10

30 8

3

9 6

230

250

15

41 4

230

250

10

30 8

199-229

230

250

255-310

300-350

10

30 8

230

250

10

30 8

318-376

230

250

420-475

450-500

50EQ034500

208-230/3/60

187

254

71 2

240

3

7 6

15
10

41 4

30 8

3
3

9 6
9 6

199-229

230
230

250

250

255-310

300-350

10

30.8

3

9.6

230

250

10

30 8

3

9 6

318-376

230

250

420-475

450-500

15

41 4

119-229

230

250

255-310

300-350

15

41 4

230

250

15

41 4

318-376

230

250

420-475

450-500

15

41 4

3

9 6

199-229

230

250

255-310

300-350

15

41 4

3

9 6

230

250

15

41.4

3

9.6

318-376

230

250

420-475

450-500

10

14

___

___

___

100

110

___

10

14

3

4.8

100

110

15

20

100

110

10

14

115.1

100

110

150

150

10

14

100

110

10

14

184

100

110

230

250

15

20

3

48

115

125

50EQ034600

460/3/60

414

528

32

120

3

3 3

10

10

14
14

3
3

4 8
48

115 1

100

100

110

110

150

150

10

14

3

48

184

100

110

230

250

15

20

115 1

100

110

150

150

15

20

100

110

15

20

184

100

110

230

250

15

20

3

48

115 1

115

125

150

150

15

20

3

48

115

125

15

20

3

4 8

184

115

125

230

250

*Fuse only
Compr —
FLA

Hp
Kw

LRA —

Compressor

MCA

Full Load Amps

MOCP

Nominal Horsepower
Kilowatts

RLA

Locked Rotor Amps

— Minimum Circuit Amps
— Maximum Overcurrent

Protection

— Rated Load Amps

NOTES: (Tables 2

1

2

3

3, and 4)

All outdoor fan motors are single-phase motors
All heaters are 3-phase assemblies

Main power supply (circuit no 1) on all units is suitable for
copper or aluminum or wire
Electric heat power supply (circuit no 2) on 240 amp, 230 v,

114 amp, 460 v units is suitable for copper wire only

SERVICE

Cleaning

— Inspect unit interior at the beginning of

each heating and cooling season and during each
season as operating conditions require. Remove unit
side panels as required to expose unit interior.
INDOOR COILS — Clean with a stiff brush,
vacuum cleaner or compressed air.

OUTDOOR COIL — Clean with a stiff brush or

vacuum cleaner. When cleaning with compressed air

or low-pressure water or steam, guard against

damaging compressor wiring and nearby controls.

Condenser fan motors are drip-proof but not
waterproof.

CONDENSER SECTION DRAINS — Check that

these drains are clean and drain freely.

CONDENSATE DRAIN — Check and clean
annually at start of cooling season. In winter, keep

drain and trap dry to protect against freeze-up.

RETURN AIR FILTERS — Clean or replace filters

at start of each heating and cooling season and once
during each season or as often as necessary during
each season depending on operating conditions.

Refer to Table 1 for type and size of filter used. Filter
access panels are shown in Fig. 3. Return air filter

tracks will accept 2 layers of one-in. thick filters if

2-in. filters are not available. Do not install bag fil­
ters in standard filter tracks. Do not install standard
filters or 2-in. high-efficiency filters in bag filter
tracks.

OUTDOOR AIR INLET SCREENS — Clean

screens with steam or hot water and mild detergent.

Do not use throwaway-type filters in place of
screens. To remove screens, loosen fastening bracket
screws and slide out screens.

Lubrication

COMPRESSORS — Each compressor is charged
with correct amount of oil at the factory. Oil level
should be between bottom and mid level of sight
glass when compressor is warm. Refer to 06D Com­

pressor Service Manual if additional information

regarding compressor lubrication system is required.

FAN SHAFT BEARINGS — Charge each grease

fitting with a suitable bearing grease at least once a
year. Do not overlubricate.

FAN MOTOR BEARINGS — No relubrication of
outdoor air fan motors or indoor air fan motors is
necessary for first 2 to 5 years of use depending on
operating conditions. Annually thereafter, open,
clean and repack each bearing with a suitable
bearing grease.

Advertising