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NumberOne
AirConditbning
M^er
Division of
Carrier Corporation
CaTiier Parkway • Syracuse N Y 13221
Single-Package Cooling Units
SAFETY CONSIDERATIONS
The 50BA,BB Single-Package Cooling Units are designed to provide safe and reliable service when operated within design specifications. However, due to system pressures, electrical components and equipment location, some aspects of installation, start-up and servicing of this equipment can be hazardous.
Only trained, qualified installers and service mechanics should install, start up and service this equipment.
When working on the equipment, observe all pre cautions on tags or labels attached to the unit, safety notes in the literature and any other safety precautions that apply.
•Follow all safety codes.
•Wear safety glasses and work gloves.
•Use care in handling, rigging and placing bulky equipment.
A DANGER
NEVER reach into unit while fan is running.
LOCK OPEN AND TAG fan motor power dis connect before working on a fan. Remove the fuses and take them with you after noting this on tag.
A WARNING
CHECK assembly and component weights to be sure rigging equipment can handle them safely. Note also any specific rigging instructions.
WHEN STEAM CLEANING COILS, be sure area is clear of personnel.
CONTENTS
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Page |
SAFETY CONSIDERATIONS.................................... |
1 |
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INSTALLATION ....................................................... |
1-18 |
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General |
...................................................................... 1 |
— Receive and inspect unit |
1 |
Step ................... |
I |
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Step ............... |
2 |
— Protect units from damage |
1 |
Step .......................... |
3 |
— Provide unit support |
4 |
Step .............................. |
4 |
— Rig and place unit |
4 |
Step |
5 — Install accessory plenum, |
7 |
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Step ....................................... |
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if supplied |
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6 — Position fan section as desired . |
..7,8 |
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Step .................................. |
7 — Install fan motor |
9 |
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Step .......... |
8 — Align fan shaft and wheel |
10,11 |
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Step |
9 — Install heating coil, if supplied . |
..11 |
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Step 10 |
— Install supply air (evaporator) |
11 |
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........................................ |
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ductwork |
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Page |
Step 11 — Install return air ductwork |
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(004-012 units).................................... |
II |
Step 12 — Check return-air filters....................... |
11 |
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Step 13 — Check compressor spring |
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mounts.............................................. |
11 |
Step 14 — Make condenser |
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connections..................................... |
11,14 |
Step 15 |
Install unit drain line........................ |
15 |
Step 16 |
Make electrical connections. ... |
16-18 |
START-UP............................................... |
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......... 18 |
Unit Size 50BA,BB004 and 006 ... |
......... 18 |
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Unit Size 50BA,BB008 thru 064 ... |
......... 18 |
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Service Valves........................................ |
......... 18 |
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Capacity Control Valve Adjustment |
......... 18 |
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SERVICE................................................. |
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......... 19 |
Indoor Air Fan Adjustment |
......... 19 |
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Lubrication............................................................. |
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20 |
Return-Air Filters................................................... |
20 |
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Condensate Drains ................................................. |
20 |
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Evaporator Coil...................................................... |
20 |
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Water-Cooled Condenser...................................... |
20 |
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Air-Cooled Condenser........................................... |
20 |
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Charging the System.......................................... |
20,21 |
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Return-Air Grille Removal ..................................... |
21 |
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Access Panel Removal.......................................... |
22 |
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Indoor-Air Fan Motor Removal............................. |
22 |
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Pressure Relief Devices........................................ |
22 |
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Crankcase Heaters................................................ |
22 |
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High and Low Pressurestats................................ |
22 |
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Time Guard® Control Circuit................................ |
22 |
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INSTALLATION
General — The 50BA,BB004 thru 024 units are selfcontained units arranged for vertical air discharge and wired and piped at the factory.
Size 50BA,BB028 thru 064 units are selfcontained units consisting of a base section, fan section, fan motor and fan drive package, each shipped separately and field assembled. The base section consists of factory-wired compressor/ evaporator coil unit. The fan section can be mounted for vertical or horizontal air discharge (Fig. 1).
^Step 1 — Receive and inspect unit.
Check unit against shipping order. Inspect care fully for concealed shipping damage. If shipment is damaged or incomplete, file claim with transporta tion company and advise Carrier immediately.
>■ Step 2 — Protect units from damage.
To maintain warranty, protect unit against ad verse weather, theft or vandalism on jobsite.
Carrier Corporation 1981
VIEW A-A
-- M ----
-v^
ALT REAR INLET
UNITS 50BA,BB004,006,008 AND 012«
DIMENSIONS (ft-in )
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UNIT |
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004 |
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006 |
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008, |
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i |
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50BA.BB |
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012 |
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A |
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3- 2-5/16 |
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4-0 |
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B |
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1-10-7/8 |
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2- 6-1/8 |
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C |
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1 5- 3-7/8 |
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6-5 |
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D |
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See Note 2 |
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1-0 |
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E |
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2-0 |
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F |
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1-1-13/16 |
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1- 4-7/16 |
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1- 7-3/8 |
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G |
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1-1-1/8 |
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1-3 |
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1- 5-1/4 |
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H |
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— |
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0 3/4 |
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0- 1-1/4 |
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J |
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1-0-1/2 |
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0-10-5/8 |
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0-11-7/8 |
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K |
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1- 9 |
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1/8 |
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1-11-1/4 |
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L |
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2- 9-5/8 |
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2- 5-3/8 |
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M |
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2- 7-7/8 |
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3-6 |
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N |
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0- |
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2 |
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0-3 |
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P |
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0-10 |
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1- 0-1/2 |
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Q |
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1- 3-9/16 |
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1-4 |
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NOTES |
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1 |
Certified |
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dimension |
drawings |
available |
upon request |
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2 |
Minimum required |
clearance |
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at |
back |
and right |
side |
of |
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unit is |
zero Clearance above |
and at |
left |
of |
unit |
depends |
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on space required for accessory plenum, ductwork, con |
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denser |
piping, accessory heater |
piping, condensate |
drain |
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line power wiring, and access to unit |
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control |
center |
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Clearance required at front of |
unit for |
service |
access |
and |
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free return airflow is 2 feet |
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Water and refrigerant connections for Unit |
Sizes |
50BA, |
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BB004 |
thru 01 2 are located |
on |
the |
left |
side |
of |
unit |
See |
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Fig 1 6 for connection details |
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-v^
ELOOR
ACCESS AREA
0AIRFLOW
*ALTERNATE RETURN AIR OR OUTDOOR AIR INLET
UNITS 50BA,BB016 AND 024
OPTIONAL TOP HORIZONTAL DISCHARGE
‘For optional top-mounted horizontal discharge, use accessory filler panel package as shown See instal lation instructions in filler panel package
■Fig. 1 — Unit Dimensions
(D
2
UNITS 50BA,BB028,034 AND 044
NOTES |
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1 |
Certified |
dimension drawings |
available |
on |
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request |
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2 Water and |
refrigerant connections for Unit Sizes |
|||
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50BA,BB016 thru 064 are located |
on right side |
of |
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unit See Fig 1 6 for connection details |
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UNITS 50BA,BB054 AND 064
ACCESS AREA
[) AIRFLOW
DIMENSIONS (ft-in
UNIT |
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— ..— |
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'■ —— |
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- —- |
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. .. ... |
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016,024 |
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028,034 |
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044 |
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054 |
064 |
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50BA.BB |
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1_- |
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A |
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" 6-8 |
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7- 9-1/4 |
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^10- g^3/g' |
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"lol el/s' |
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B |
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2- 5-1/4 |
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2-11-1/4 |
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3-10-1/4 |
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3-10-1/4 |
3-10-1/4 |
C |
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6-10-1/2 |
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8- 0-1/8 |
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8-10 |
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9-9 |
10-1 |
D |
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2-0 |
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2-0 |
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2- 0 |
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3-0 |
3-0 |
E ~ |
. 3_Q |
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1-0 |
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3-0 |
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1-0 |
3 -0 ” |
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F |
1- 7-1/4 |
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1- 8-7/8 |
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1- 8-7/8 |
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1- 8-7/8 |
1- 8-7/8 |
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G |
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1- 5-1/4 |
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1- 8-7/8 |
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1- 8-7/8 |
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1- 8-7/8 |
1- 8-7/8 |
H |
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1- 4-1/8 |
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1- 7-7/8 |
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2- 7-1/2 |
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1- 5-5/8 |
1- 5-5/8 |
J |
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0- 1-5/8 |
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0- 2-3/a |
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'”o-3 |
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^ 0 -3 "^ |
0-3 |
K |
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1-7 |
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1-4 |
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2- 2-5/8 |
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1- 2-1/4 |
1- 2-1/4 |
L |
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— |
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3- 2-1/4 |
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3-10 |
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4-9 |
4-9 |
M |
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1-8 |
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2- 1-1/8 |
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2- 2-1/2 |
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2- 2-1/2 |
2- 6-1/8 |
N |
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— |
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7- 4-1/4 |
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10- 0 |
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io-0 |
^To-0 |
P |
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4- 4-5/8 |
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5- 4-1/8 |
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6- 4-5/8 |
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6- 4-5/8 |
6- 4 -5 / 8 |
Q |
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4-1 1-1/2 |
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5- 7-1/4 |
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6- 3-5/8 |
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7- 7-1/4 |
7 - 7 -1 / 4 |
■Fig. 1 — Unit Dinrensions (cont)
3
Table 1 — Physical Data
MODEL 50 |
BA |
BB |
|
BA |
BB |
BA |
|
BB |
|
BA |
BB |
|
BA |
|
BB |
|
004 |
|
006 |
008 |
|
012 |
|
016 |
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OPERATING WEIGHT (lbs) |
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890 |
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1414 |
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Base Unit |
390 |
330 |
|
427 |
360 |
770 |
710 |
|
950 |
|
1221 |
|
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Discharge Plenum |
25 |
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25 |
140 |
|
140 |
|
140 |
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OPERATING CHARGE (lbs) |
|
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Refrigerant 22 |
8 |
|
24 |
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System 1 |
3 5 |
2 |
|
46 |
2 5 |
10 |
7 |
|
10 |
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15 |
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System 2 |
— |
— |
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— |
__ |
— |
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— |
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— |
— |
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— |
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— - |
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System 3 |
— |
— |
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— |
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— |
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— |
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— |
— |
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— |
- |
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COMPRESSOR — TYPE 06 |
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Welded Hermetic, 3450 Rpm |
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Serviceable Hermetic, 1750 Rpm |
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System 1 |
M34 |
M34 |
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P53 |
P67 |
P77 |
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DA818 |
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DB724 |
DB824 |
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DD337 |
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DD537 |
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System 2 |
— |
— |
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— |
— |
— |
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— |
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— |
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— |
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System 3 |
— |
— |
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— |
__ |
— |
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— |
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— |
2 |
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— |
2 |
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No of Unloading Cylinders |
|
0 |
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0 |
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0 |
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No of Capacity Steps |
|
1 |
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1 |
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2 |
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2 |
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CONDENSER (BA Only) |
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1 |
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TT |
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1 |
TT |
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1 |
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SC |
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No. . Type |
1 |
TT |
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1 |
TT |
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INDOOR FAN |
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Adjustable, Belt-Driven Centrifugal; 1750 Rpm Motor |
|
6000 |
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|||||||||
Nominal Cfm |
1200 |
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2000 |
3000 |
|
4000 |
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Standard Fan Speed Range (Rpm) |
512-782 |
|
647-915 |
495-700 |
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600-850 |
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568-720 |
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Maximum Allowable Rpm |
1100 |
|
1100 |
1100 |
|
1100 |
|
1100 |
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No. of Belts . Fan Pulley PD (in ) |
1 |
64 |
|
1 |
64 |
1 |
8 5 |
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1 |
70 |
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1 |
11 4 |
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Motor Pulley PDR (in ) |
1 9-2 9 |
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2 4-3 4 |
2 4-3 4 |
|
2 4-3 4 |
|
3 7-4 7 |
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Nom Hp Std...Frame Size |
1/3 48 |
|
3/4 56 |
1 |
56 |
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2 |
45T |
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2 |
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145T |
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Alt...Frame Size |
3/4 56 |
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1 |
56 |
2 |
145T |
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3 182T |
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3 |
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182T |
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Alt.. Frame Size |
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3 |
182T |
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5 |
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184T |
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INDOOR COIL |
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Copper Tubes, Aluminum Fins |
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3 |
106 |
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No of Rows . Fins/in |
2 |
13 9 |
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3 |
13 9 |
3 |
12 1 |
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3 |
12 1 |
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Total Face Area (sq ft) |
50 |
|
50 |
7 3 |
|
8 5 |
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16 9 |
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RETURN AIR FILTERS |
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Factory-Supplied Throwaway Type |
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3 16x25x2 |
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No. ...Size (in.) |
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2 16x25x1 |
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4 16x20x1 |
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....... i |
....... |
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(See Note 4) |
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3 20x25x2 |
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CONDENSER CONNECTIONS (BA Only) |
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Size (in ) . Type |
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FPT |
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Water Inlet — Manifolded |
1/2 |
FPT |
|
3/4 |
FPT |
1 |
|
FPT |
1 |
FPT |
2 |
|
i |
|||
Water Outlet — Manifolded |
1/2 |
FPT |
|
3/4 |
FPT |
1 |
|
FPT |
|
.... .J... |
FPT |
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|
FPT |
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REFRIGERANT CONNECTIONS (BB Only) |
1/2 FI |
|
1/2 FI |
Size (in.)...Type |
ODF |
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„ ^ - Hot Gas Line |
|
3/4 |
|
ODF |
|
3/4 |
|
1-1/8 ODM |
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System 1 Liquid Line |
1/2 FI |
|
1/2 FI |
5/8 |
|
ODF |
|
5/8 |
ODF |
|
5/8 |
|
ODM |
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_ _ Hot Gas Line |
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_ |
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System 2 Liquid Line |
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— |
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_ ^ _ Hot Gas Line |
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_ |
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— |
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Systems Liquid Line |
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— |
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CONDENSATE CONNECTION |
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Size (in ) Type |
FPT |
|
1 |
|
FPT |
|
||||
Condensate Drain |
3/4 |
FPT |
|
3/4 |
FPT |
3/4 FPT |
|
3/4 |
|
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ACCESSORY HEATING COIL |
1 |
1~5 |
|
1 |
1 5 |
|
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2 |
14 |
|
2 |
|
11 3 |
|
Rows ..Fins/in |
|
2 |
14 |
|
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|
||||||||||
Hot Water T , r- A / |
5 0 |
|
50 |
|
60 |
|
|
60 |
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|
15 7 |
|
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Total Face Area (sq ft) |
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|
— |
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|||||
„ Rows...Fins/in |
|
— |
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|
1 |
14 |
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1 |
14 |
|
1 |
14 |
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|||
Total Face Area (sq ft) |
|
— |
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|
— |
|
6 9 |
|
6 9 |
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|
144 |
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HEATING COILS CONNECTIONS |
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No |
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Size (in.) |
MPT |
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1-1/2 |
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Inlet |
1 |
7/8 |
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1 |
7/8 |
1 |
1-1/4 |
|
1 |
1-1/4 |
|
2 |
|
|||
Hot Water r\ ^ |
1 |
7/8 |
|
1 |
7/8 |
1 |
1-1/4 |
|
1 |
1-1/4 |
|
2 |
1-1/2 |
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Outlet |
|
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||||||||||||
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1 |
7/8 |
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1 |
7/8 |
1 |
1-1/4 |
|
1 |
1-1/4 |
|
1 |
1-1/4 |
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||
Outlet |
1 |
7/8 |
|
1 |
7/8 |
1 |
1-1/4 |
|
1 |
1-1/4 |
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1 |
1-1/4 |
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Step 3 — Provide unit support.
Refer to Fig. I — Dimensions, and Table 1 — Physical Data for unit size and weight.
Construct a stand or frame of I-beams or angle iron that supports unit adequately, if desired. The floor and floor joists of existing buildings may require reinforcement; follow applicable codes.
Step 4 — Rig and place unit.
Provide space around unit for service, filter access and overhead clearance as indicated in Fig. 1.
Move and store unit in upright position.
50BA,BB004 AND 006 — Use rollers under ship ping rails. Unit may be moved by hand truck on any side. Do not remove shipping rails until unit is in final position.
50BA008 THRU 064 — Use slings with spacer under base skid to prevent panel damage when using hoist. Raise base skid on blocks and remove bolts. On 028 thru 064 units, unbolt fan section from skid.
Units as shipped are adequately dampened against vibration. If additional dampening is de sired, place sponge rubber, rubber mat or fiberglass roof insulation between floor and base of unit or install vibration isolators.
Table 1 — Physical Data (cont)
MODEL 50 |
BA 1 BB |
BA |
|
BB |
|
BA |
|
BB |
BA 1 BB |
BA |
|
BB |
BA |
|
BB |
||||
|
|
024 |
028 |
|
034 |
|
044 |
054 |
|
064 |
|||||||||
OPERATING WEIGHTlibir~~~~~ |
|
i |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Base Unit |
|
2491 |
|
2397 |
|
2598 |
|
2430 |
3800 |
|
3100 |
4100 |
|
3300 |
4404 |
|
3550 |
||
Discharge Plenum |
1894 i 1464 |
|
|
|
|
|
|
||||||||||||
140 |
|
|
|
|
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|||
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|
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||
OPERATING CHARGE (lbs) |
|
|
|
|
|
|
|
|
Refrige |
rant 22 |
|
|
|
|
|
|
|
|
|
System 1 |
17 1 7 |
24 1 15 |
|
|
|
|
15 |
29 |
|
15 |
52 1 25 |
||||||||
System 2 |
|
24 1 15 |
24 |
|
|
||||||||||||||
17 1 7 |
17 112 |
|
24 1 15 |
24 |
|
15 |
29 |
|
15 |
52 1 25 |
|||||||||
System 3 |
|
|
|
||||||||||||||||
|
|
|
|
|
|
|
|
|
17 |
|
11 |
29 |
|
15 |
|
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||
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DUMPHESSOR — TYPE 06 |
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Serviceable Herr |
netic, 1750 Rpm |
|
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|
|||||
System 1 |
DA724I DA824 |
|
|
|
|
|
|
|
|
|
|
||||||||
DA3371DA537 |
|
DA337I DA537 |
DA3371DA537 |
DA337 |
|
DA537 |
EA275!EA275 |
||||||||||||
System 2 |
|
|
|||||||||||||||||
System 3 |
DA724I DA824 |
DA7241DA824 |
|
DA337I DA537 |
DA337 DA537 |
DA337 |
|
DA537 |
E5275i E5275 |
||||||||||
|
|
|
|
|
|
|
|
|
DA7241 DA824 |
DA337 |
|
DA537 |
|
|
|
||||
No. of Unloading Cylinders |
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||
|
0 |
|
0 |
|
|
0 |
|
0 |
|
|
) |
|
4 |
||||||
No of Capacity Steps |
|
|
|
|
|
|
|
|
|||||||||||
|
2 |
|
2 |
|
|
2 |
|
3 |
|
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6 |
||||||
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CONDENSER (BA Onl^ |
|
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|
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No. . Type |
2 SC |
2 SC |
|
2 SC |
|
2 SC |
2 SC |
|
2 ST |
||||||||||
llML/<^UK hAN "................................................... |
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|
||||||||||||||||
|
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Adjustable |
|
;, Belt-Driven Ce |
ntrifugal; 1750 R |
pm Motor |
|
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|
||||||||||
Nominal Cfm |
|
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|
|
|
|
|||||||||||||
8000 |
10,000 |
|
12,000 |
16,000 |
20,000 |
24,000 |
|||||||||||||
Standard Fan Speed Range (Rpm) |
|
||||||||||||||||||
700-875 |
605-750 |
|
685-845 |
627,672,717 |
650,695,762 |
785,828,895 |
|||||||||||||
Maximum Allowable Rpm |
|
||||||||||||||||||
1100 |
1100 |
|
1100 |
|
1100 |
1100 |
|
1100 |
|||||||||||
No of Belts...Fan Pulley PD (in ) |
|
|
|
||||||||||||||||
2 100 |
2 12 4 |
|
2 11 0 |
|
2 154 |
2 154 |
|
2 154 |
|||||||||||
Motor Pulley PDR (in.) |
|
|
|
||||||||||||||||
4 0-5 0 |
4 3-5 3 |
|
4 3-5 3 |
5 6,6 0,6 4 |
5 8,6 2,6 8 |
7 0,7 4,8 0 |
|||||||||||||
Norn HP Std...Frame Size |
|
||||||||||||||||||
3 182T |
5 |
184T |
|
5 |
184T |
7-1/2 213T |
10 215T |
15 254T |
|||||||||||
|
Alt .Frame Size |
|
|||||||||||||||||
|
5 |
182T |
7-1/2 213T |
|
7-1/2 213T |
10 215T |
15 254T |
|
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|
|||||||||
|
Alt. .Frame Size |
|
|
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||||||||||||||
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|
10 215T |
|
10 ..215T |
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|||||
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INDOOR COIL |
|
|
|
|
|
Copper Tubes — Aluminum Fins |
|
|
|
|
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|
|||||||
No. of Rows. .Fins/in. |
|
|
|
|
|
|
|
|
|
|
|
||||||||
4 106 |
4 89 |
|
|
|
|
|
489 j 490 j 490 | 4 10 6 |
|
|
|
|||||||||
Total Face Area (sq ft) |
|
|
|
|
|
|
|
|
|||||||||||
180 |
22 6 |
|
|
|
|
|
26.9 36 5 46.3 46.3 |
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||||||||
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|
|||||||||
RETURN AIR FILTERS |
|
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|
|
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Factory-Supplied Throwaway Type |
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|
||||||
No. ...Size (in ) |
3 16x25x2 1 6 25x20x2 1 1 1 oc on 9 |
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||||||||||||
1 20x25x2 |
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||||||||||
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3 20x25x2 I 2 16x20x2 1 '' | 5.16x25x2 |
|
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CONDENSER CONNECTIONS (B^Onlv) |
|
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Size (in ) ..Type |
|
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|
||||
Water Inlet - Manifolded |
2-1/2 |
FPT |
|
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|
|||||
1-1/2, 2 FPTI 2,2 FPT I 3 FPT 1 3 FPT |
|
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3 FPT |
||||||||||||
Water Outlet — Manifolded |
|
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|
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|||||||||||||
2-1/2 FPT |
1-1/2, 2 FPT 2,2 FPT 3 FPT 3 FPT |
|
|
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3 MPT |
|||||||||||
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REFRIGERANT CONNECTIONsTBB^iii^ |
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Size (in |
.)...Type |
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|
|||
System 1 Line |
7/8 |
ODM |
1-1/8 |
|
ODS |
|
1-1/8 ODS |
1-1/8 ODM |
1-1/8 ODM |
1-3/8 ODM |
|||||||||
|
Liquid Line |
5/8 |
ODM |
5/8 |
|
ODS |
|
|
5/8 ODS |
|
5/8 ODM |
|
5/8 ODM |
|
7/8 ODM |
||||
System 2 Line |
|
|
|
|
|
|
|||||||||||||
7/8 |
ODM |
7/8 |
|
ODS |
|
1-1/8 ODS |
1-1/8 ODM |
1-1/8 ODM |
1-3/8 ODM |
||||||||||
|
Liquid Line |
5/8 ODM |
5/8 ODS |
|
|
5/8 ODS |
|
5/8 ODM |
|
5/8 ODM |
|
7/8 ODM |
|||||||
System 3 Line |
|
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||||||||||||||
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7/8 ODM |
1-1/8 ODM |
|
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|
|||||
|
Liquid Line |
|
|
|
|
|
|
|
|
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|
5/8 ODM |
|
5/8 ODM |
|
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|
||
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|
||||
CONDENSATE CONNECTION ~~~ ~- |
|
|
|
|
|
|
|
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Size (in |
.). .Type |
|
|
|
|
|
|
|||
Condensate Drain |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||
1 FPT |
1-1/4 MPT |
|
1-1/4 MPT |
1-1/4 MPT |
1-1/2 MPT |
|
1-1/2 MPT |
||||||||||||
|
|
|
|
||||||||||||||||
ACCESSORY HEATING COIL |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hot Water Fins/in. |
2 113 |
2 14 |
|
2 14 |
|
2 113 |
2 113 |
|
2 113 |
||||||||||
|
Total Face Area (sq ft) |
15 7 |
11 7 |
|
|
11 7 |
|
35 0 |
44 8 |
|
44 8 |
||||||||
Steam Flows. Fins/in. |
|
|
|
|
|||||||||||||||
1 14 |
I |
14 |
|
I |
14 |
|
1 10 |
1 10 |
|
1 10 |
|||||||||
_ Total Face Area (sq ft) |
14 4 |
II |
4 |
|
|
II 4 |
|
32 6 |
38 8 |
|
38 8 |
||||||||
|
|
|
|
|
|
||||||||||||||
HEAIING COIL CONNECTIONS |
|
|
|
|
|
|
No .. Siz |
s (in ) MPT |
|
|
|
|
|
|
|||||
Hot Water |
2 |
1-1/2 |
2 |
1-1/2 |
|
2 |
1-1/2 |
3 |
1-1/2 |
3 |
1-1/2 |
3 |
1-1/2 |
||||||
|
Outlet |
2 |
1-1/2 |
2 |
1-1/2 |
|
2 |
1-1/2 |
3 |
1-1/2 |
3 |
1-1/2 |
3 |
1-1/2 |
|||||
Steam |
|
||||||||||||||||||
1 |
1-1/4 |
2 |
1-1/2 |
|
2 |
1-1/2 |
2 |
2-1/2 |
2 |
2-1/2 |
2 |
2-1/2 |
|||||||
|
Outlet |
1 1-1/4 |
2 1-1/4 |
|
2 1-1/4 |
2 1-1/2 |
2 1-1/2 |
2 1-1/2 |
|||||||||||
|
|
|
|||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FPT |
— |
Female Pipe Thread |
|
Hp |
— |
Horsepower |
|
MPT |
|
— Male Pipe Thread |
|
PD |
|
— |
Pitch Diameter |
PDR |
|
||
|
— |
Pitch Diameter Range |
|
SC |
|
||
|
— |
Shell and Coil |
|
ST |
|
— |
Shell and Tube |
|
|||
|
|
— |
Tube in Tube |
NOTES |
|
|
1 50BB008 has serviceable hermetic 1750 rpm compressor |
|
|
2 Operating charge for 50BB units does not include charge |
for remote air |
|
cooled condenser or connecting pipe All 50BB units are |
shipped |
with a |
holding charge Operating charge values are approximate |
See |
installa |
tion instructions |
|
|
3Fan motor pulleys on 50BA,BB044,054 and 064 are fixed-pitch type
4Field-supplied 2-in filters will fit
5Motors and drives other than those furnished with unit must be purchased
locally Installation may require field modification Contact your local Carrier representative
isBKggggsas^iKssasìgagsasBgagaagMi
BASE UNIT GENERAL VIEW
1— Accessory Plenum
2— Selector Switch and Thermostat
3— Thermostatic Expansion Valve 4 — Indoor Air Fan
5— Indoor Air Fan Motor
6— Indoor Air Fan Motor Mounting Bracket
7— Evaporator
8— Thermostat Sensing Bulb
9— Return Air Filter
10— Refrigerant Filter-Drier
11— Water Regulating Valve Fitting on Refrigerant Liquid Line (50BA)
12— Low-Pressure Cutout Switch (50BA,BB006 only)
13— Suction Pressure Gage Connection
14— Compressor
15— Discharge Pressure Gage Connection (50BA)
16— Control Box
17— Service Valves, Suction and Discharge, with Gage connections (50BB)
18— Water-Cooled Condenser (50BA)
INDOOR AIR FAN DETAIL
SERVICE VALVE DETAILS (50BB)
COMPRESSOR COMPARTMENT
Fig. 2 — Base Unit Interior Details (50BA,BB004,006,008 and 012)
LEGEND FOR 50BA024 UNIT
1— Indoor Air Fan
2— Selector Switch
3“ Return Air Filters
4— Evaporator Coil
5— Control Box
6^ Compressor No 1
7— Compressor No 2
8— Condensers
[7J (81
Fig. 3 — Base Unit Interior Details (50BA024 Unit Shown)
Step 5 — Install accessory plenum if supplied.
On unit Sizes 004 thru 024, holes in the unit top panel match holes in plenum. Use screws (shipped in cloth bag taped inside plenum) to attach plenum to unit top. See Fig. 1 and 2.
Step 6 — Position fan section as desired.
UNIT SIZES 50BA,BB004 THRU 024 are shipped for vertical discharge. To set up these units for hori zontal discharge, separately purchased accessory filler panels must be field installed (see Fig. 1).
To set up unit Sizes 50BA,BB016 and 024 for backmounted horizontal discharge (Fig. 1), proceed as follows;
1.Remove;
a.Rear fan-section panel.
b.Upper rear coil-section panel.
c.Power connections from indoor fan motor.
d.Corner bolts holding fan section to coil section.
2.Remove fan section and rotate it 180° lengthwise so that motor is on left side of unit.
3.Place fan section on rear of coil section and refasten.
4.Replace indoor fan motor power connections.
5.Adjust the following items per Installation Step 8;
a.Shaft alignment.
b.Fan wheel position.
c.Pulleys.
d.Fan belt.
6.Replace panels as follows;
a.Upper rear coil-section panel on top of coil section and fasten.
b.Rear fan-section panel on top of fan section and fasten.
UNIT SIZES 50BA,BB028 THRU 064 are shipped in sections as noted previously. They can be field assembled for either vertical or horizontal discharge.
NOTE; Fan section panels may be removed for easier lifting and to facilitate motor installation.
To set up Sizes 50BA,BB028 thru 064 for horizon tal discharge (Fig. 4 and 5), proceed as follows;
1.Remove;
a.Upper rear and end panels of coil section.
b.End panels on fan section.
c.Fasteners holding lower rear edge of fan panel.
2.Lift and position fan section on rear of coil section (Fig. 4). Secure with fasteners provided.
3.Install the following per Installation Step 7:
a.Motor mounting frame angles.
b.Motor on plate assembly.
c.Motor-plate assembly on frame angles.
d.Balance of drive package components.
4.Adjust the following per Installation Step 8:
a.Shaft alignment.
b.Fan wheel position.
c.Pulleys.
d.Fan belts.
VERTICAL DISCH
TOP MOUNTED
Motor pulley on left side of unit — vertical discharge
Motor pulley on right side of unit — horizontal discharge
Fig. 4 — Fan and Motor Arrangements
50BA,BB028,034,044,054,064
REAR HORIZONTAL FAN AND VERTICAL FAN DISCHARGE SOBA.BB 028,034,044,054
MOTOR MOUNTING \ AND 064 BRACKETS (INSTALL
AFTER MOUNTING FAN SECTION)
FAN SECTION
NO MOTOR MOUNTING BRACKET USED WITH 044 SIZE UNIT
THREE FANS ON 054 AND 064 UNITS
REAR PANEL FAN SECTION
5.Replace panels as follows:
a. Rear coil section panel on top of coil section. Rear holes will overlap fan section top panel. Fasten, using hole vacated in Step Ic (see Fig. 5).
b. All end panels.
NOTE; On Size 044 units, motor mounting channels are factory installed and no angles, plates or fasteners are necessary. In this position, the fan motor is located on right side within fan section.
To set up Sizes 50BA,BB028 thru 064 for vertical air discharge (Fig. 4 and 5):
1.Remove:
a.Front, rear and end panels of fan section.
b.Upper-rear and end panels of coil section.
c.Filters from coil section.
d.Fasteners holding filter frame top. Push frame out and away from coil section frame (on 028 and 034 units only).
2.Lift up and position fan section on coil section (Fig. 5).
3.Fasten fan-section frame to coil-section frame with fasteners provided, then (on 028 and 034 units) reposition and fasten the filter frame
moved in Step Id.
4.Install the following per Installation Step 7;
a.Motor mounting frame angles.
b.Motor on motor-plate assembly.
c.Motor-plate assembly on frame angles.
d.Balance of drive package components.
MOTOR MOUNTING
ANGLES
FAN SECTION
FRAME
ADJUSTING
SCREW HOI
Fig. 6 — 028 and 034 |
Fig. 7 — 054 and 064 |
Horizontal Fan Motor |
Vertical Fan Motor |
Mounting Angles |
Mounting Angles |
I
Fig. 5 — Fan Section Mounting |
Fig. 8 — Fan Motor Mounting Detail |
(50BA,BB028-064) |
(50BA,BB054 and 064) |
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