background image

PRODUCT DESIGN

3

Amana PCA Package Cooling Units are designed for out-
door installations only in either residential or light commer-
cial applications.

The connecting ductwork (Supply and Return) can be con-
nected for either horizontal or vertical airflow. In the vertical
application a matching Roof Curb is recommended.

A return air filter must be installed behind the return air grille(s)
or provision must be made for a filter in an accessible loca-
tion within the return air duct. The minimum filter area should
not be less than those sizes listed in the Specification Sec-
tion.  Under no circumstances should the unit be operated
without return air filters.

A 3/4" pipe and external drain trap is provided for removal of
condensate water from the indoor coil.  (Do not reduce the
drain line size.)

Refrigerant flow control is achieved by use of restrictor ori-
fices.

The single phase units use permanent split capacitor (PSC)
design compressors.  Starting components are therefore not
required.  A low MFD run capacitor assists the compressor
to start and remains in the circuit during operation.

The outdoor fan and indoor blower motors are single phase
capacitor type motors.

Air for condensing (cooling cycle)  is drawn through the out-
door coil by a propeller fan, and is discharged vertically out
the top of the unit.  The outdoor coil is designed for .0 static.
No additional restriction (ductwork) shall be applied.

Conditioned air is drawn through the filter(s), field installed,
across the coil and back into the conditioned space by the
indoor blower.

PCA42C* to PCA60C* model package units use the Copeland
Compliant Scroll compressor, there are a number of design
characteristics which are different from the traditional recip-
rocating compressor.

-

Due to their design Scroll Compressors are inherently
more tolerant of liquid refrigerant. NOTE: Even though the
compressor section of a Scroll compressor is more toler-
ant of liquid refrigerant, continued floodback or flooded
start conditions may wash oil from the bearing surfaces
causing premature bearing failure.

-

Scroll Compressors use white oil which is compatible
with 3GS oil which may be used if additional oil is re-
quired.

-

Operating pressures and amp draws may differ from stan-
dard reciprocating compressors.  This information may
be found in the "Cooling Performance Data" section.

Location and Clearances

36"

Maximum
Overhang

48" Minimum

Overhang

36" Side

Clearance

for Servicing

Recommended

Minimum 36"

Clearance for

Service Required

0" Minimum

Clearance to

Combustibles

Vinyl Coated
Canvas
Connections

  Insulated 
  Return
  Duct

  Insulated 
  Supply
  Duct

24" Clearance
(Condenser End)

In installations where the unit is installed above ground level
and not serviceable from the ground (Example: Roof Top in-
stallations) the installer must provide service platform for ser-
vice person with rails or guards in accordance with local codes
or ordinances or in their absence with the latest edition of the
Uniform Mechanical Code Section 305.

NOTE:  Unit can also use roof curb (and platform for leveling,
where necessary) to utilize bottom discharge.

WARNING

TO PREVENT POSSIBLE PROPERTY DAMAGE, THE UNIT
SHOULD REMAIN IN AN UPRIGHT POSITION DURING ALL
RIGGING AND MOVING OPERATIONS.  TO FACILITATE
LIFTING AND MOVING IF A CRANE IS USED, PLACE THE
UNIT IN AN ADEQUATE CABLE SLING.

IMPORTANT:  If using bottom discharge with roof curb,
ductwork should be attached to the curb prior to installing
the unit.

Refer to Roof Curb Installation Instructions for proper curb
installation.  Curbing must be installed in compliance with
the National Roofing Contractors Association Manual.

Содержание PCA24C02E

Страница 1: ...ified person Technical Information MODEL M N Refer to Service Manual RS6300003 for installation op eration and troubleshooting information All safety information must be followed as provided in the Se...

Страница 2: ...ffected the manufacturing number will change It is very important to use the model and manufacturing numbers at all times when requesting service or parts information IF REPAIRS ARE ATTEMPTED BY UNQUA...

Страница 3: ...rom the traditional recip rocating compressor Due to their design Scroll Compressors are inherently more tolerant of liquid refrigerant NOTE Even though the compressor section of a Scroll compressor i...

Страница 4: ...K O 2 3 8 BOTTOM DUCT OPENING RETURN 25 9 16 PCA24 36 BOTTOM DUCT OPENING SUPPLY 47 5 32 12 INSIDE 12 INSIDE 12 INSIDE 12 INSIDE 3 3 4 2 7 32 16 1 4 REF 3 13 16 7 1 4 18 5 8 ELECTRICAL 3 4 1 1 4 K O 2...

Страница 5: ...2 8 2 10 2 NUMBER OF ROWS 1 1 1 FINS PER INCH 20 20 20 HORSEPOWER NO OF SPEEDS 1 3 4 1 3 4 1 3 4 FULL LOAD AMPS 2 6 2 6 2 6 LOCKED ROTOR AMPS 4 2 4 2 4 2 MOTOR SPEED TAP COOLING LOW MED LOW MED HIGH...

Страница 6: ...FT 12 12 12 NUMBER OF ROWS 1 1 2 FINS PER INCH 20 20 20 HORSEPOWER NO OF SPEEDS 3 4 3 3 4 3 3 4 3 FULL LOAD AMPS 4 7 4 7 4 7 LOCKED ROTOR AMPS 12 2 12 2 12 2 MOTOR SPEED TAP COOLING LOW MEDIUM HIGH RP...

Страница 7: ...0 0 8 605 155 700 220 905 275 1205 390 PCA24 30 36C E High FAN SPEED Low Med Low Med High UNIT STATIC in W C CFM WATTS CFM WATTS CFM WATTS 0 2 1540 620 1780 735 2265 1010 0 3 1520 600 1755 705 2160 96...

Страница 8: ...8 BLOWER PERFORMANCE DATA TEMPERATURE RISE...

Страница 9: ...6 6 21 1 21 8 23 6 25 3 19 6 20 2 21 8 23 4 S T 0 74 0 66 0 50 0 32 0 77 0 69 0 52 0 33 0 79 0 71 0 53 0 34 0 81 0 73 0 55 0 35 0 84 0 76 0 57 0 37 0 85 0 76 0 58 0 37 Delta T 18 17 14 9 18 17 14 10 1...

Страница 10: ...0 13 4 HI PR 153 165 174 182 172 185 195 204 196 211 222 232 223 240 253 264 251 270 285 297 277 298 315 328 LO PR 55 59 64 69 59 62 68 72 61 65 71 75 64 68 74 79 67 71 78 83 69 74 81 86 MBh 24 8 25 2...

Страница 11: ...3 25 7 26 4 28 6 30 7 23 8 24 5 26 5 28 5 S T 0 80 0 71 0 54 0 35 0 82 0 74 0 56 0 36 0 85 0 76 0 57 0 37 0 87 0 78 0 59 0 38 0 91 0 81 0 61 0 39 0 91 0 82 0 62 0 40 Delta T 19 18 15 10 20 18 15 10 2...

Страница 12: ...0 16 5 HI PR 175 188 199 207 196 211 223 233 223 240 254 265 254 274 289 301 286 308 325 339 316 340 359 375 LO PR 57 61 67 71 61 65 71 75 63 67 73 78 66 71 77 82 69 74 81 86 72 76 83 89 MBh 30 1 30...

Страница 13: ...1 31 1 32 0 34 6 37 2 28 8 29 6 32 1 34 4 S T 0 79 0 71 0 53 0 34 0 82 0 73 0 55 0 36 0 84 0 75 0 57 0 36 0 86 0 77 0 59 0 38 0 90 0 80 0 61 0 39 0 91 0 81 0 61 0 39 Delta T 20 18 15 10 20 18 15 10 20...

Страница 14: ...4 21 1 HI PR 174 187 197 206 195 210 222 231 222 239 252 263 253 272 287 299 284 306 323 337 314 338 357 372 LO PR 64 68 74 79 67 72 78 83 70 75 81 87 74 78 86 91 77 82 90 95 80 85 93 99 MBh 36 4 37 1...

Страница 15: ...4 0 35 0 36 0 39 0 41 8 32 4 33 4 36 1 38 7 S T 0 77 0 69 0 52 0 33 0 79 0 71 0 54 0 35 0 81 0 73 0 55 0 35 0 84 0 75 0 57 0 37 0 87 0 78 0 59 0 38 0 88 0 79 0 60 0 38 Delta T 19 17 14 10 19 17 14 10...

Страница 16: ...1 23 9 HI PR 179 192 203 212 200 216 228 237 228 245 259 270 260 279 295 308 292 314 332 346 323 347 367 382 LO PR 61 64 70 75 64 68 74 79 66 71 77 82 70 74 81 86 73 78 85 91 76 81 88 94 MBh 41 0 41...

Страница 17: ...1 40 6 41 8 45 2 48 5 37 6 38 7 41 9 45 0 S T 0 77 0 69 0 52 0 33 0 79 0 71 0 54 0 35 0 81 0 73 0 55 0 35 0 84 0 75 0 57 0 37 0 87 0 78 0 59 0 38 0 88 0 79 0 60 0 38 Delta T 20 19 15 11 20 19 15 11 2...

Страница 18: ...4 28 4 HI PR 177 191 202 210 199 214 226 236 226 244 257 268 258 277 293 306 290 312 330 344 320 345 364 380 LO PR 59 62 68 72 62 66 72 77 64 68 75 80 68 72 78 84 71 75 82 88 73 78 85 91 MBh 47 6 48...

Страница 19: ...1 50 1 51 6 55 8 59 9 46 4 47 8 51 7 55 5 S T 0 74 0 67 0 50 0 32 0 77 0 69 0 52 0 34 0 79 0 71 0 54 0 34 0 82 0 73 0 55 0 36 0 85 0 76 0 57 0 37 0 85 0 76 0 58 0 37 Delta T 21 19 16 11 21 20 16 11 2...

Страница 20: ...7 37 0 HI PR 171 184 194 202 192 206 218 227 218 235 248 258 248 267 282 294 279 301 317 331 309 332 351 366 LO PR 56 59 65 69 59 62 68 73 61 65 71 75 64 68 74 79 67 71 78 83 69 74 81 86 MBh 58 7 59...

Страница 21: ...ature drop T Low and high side pressures and power will not change 2 As indoor CFM decreases a slight increase will occur in indoor temperature drop T A slight decrease will occur in low and high side...

Страница 22: ...VT 18 BU 23 USE COPPER CONDUCTORS ONLY 75 C MIN COMMON HI MED HI MED LOW LOW 3 2 1 6 5 9 8 7 4 VIEW A A G W O Y R C ALTERNATE UNIT POWER REFRIGERANT LEADS MAY BE USED WITH ELECTRIC HEATER ACCESSORIES...

Страница 23: ...Y R ELECTRIC HEAT RELAY 24V COMMON CAP L2 START CAP 5 2 1 START RELAY HI MED LO CAP 2 4 1 3 COOLING TAP 5 HEAT TAP ACB 230 VOLT COOLING SWITCH RELAY 230 208 TO HEATER KIT ELECTRIC HEAT RELAY W2 HEATE...

Отзывы: