Carrier 50BA - Manual (Page 2)

Table 1 — Physical Data
UNIT 50
BA BB BB BA BB BA BB
■
BA BB BA BB BA BB
BA.
BB BA BB
008 012 016 024 028 034 044 0S4 064
OPER WEIGHT (lb) 770* 710* 950* 890* 1414* 1221* 1894- 1464* 2491 2327 2598 2430 3800 3100 4100 3300 4404 3550
OPER CHARGE (lb) R efrigerant 22t
Sys 1 10 7 10 8 24 15 17 7 24 15 24 15 24 15 29 15 52 25
Sys 2 - - - - - 17 7 17 12 24 15 24 15 29 15 52 25
Sys 3 - - - - - - - - - - - 17 11 29 15 - -
COMPRESSOR 1750 rprn at 60-Hz {Note 1)
06- R DA DB DD DA DA DA DA DA EAt
Sys 1 249 818 724 824 337 537 724 824 337 537 337 537 337 537 337 537 175 275
Sys 2 _ - - - - - 724 824 724 824 337 537 337 537 337 537 175 275
Sys 3 - - - - - - - - - - - - 724 824 337 537 - -
Unloading Cylinder 0 0 2 2 2 2 0 0 0 0 0 0 0 0 0 0 4 4
Capacity Steps 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 2 or 4
Oil Capacity (Pfs) s 7 10 10 10 ea 10 ea 10 ea 10 eo 10 eo 17 ea
CONDENSER, Type Tf _ TT - SC - SC - SC - SC - SC SC _ ST -
Number 1 - 1 - 1 -
2
-
2
”
2 - 3 - 3 -- 2 -
EVAPORATOR FAN 1725 Rpm; Belt-Driven ^ _entriugn 1
Nominal Cfm 3000 4000 6000 8000 10,000 12,000 16,000 20,000 24,000
2250- 3000- 4500- 6000- 7,500- 9,000- 12,000- 15,000- 20,000-
Range Cim
3750 5000 7500 10000 12,500 15,000 20,000 25,000 25,000
Nominal Motor Hp 1 0 2 0 2 0 3 0 5 0 5 0 7 5 10 0 15 0
Frame (NEMA) 56 145T 145T 182T 184T 184T 213T 256 U 284 U
Motor PDR (Note 2) 2 4 -3 4 2 4 -3 4 3 7 -4 7 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
Fan PPD 8 5 7 0 1 4 10 0 12 4 1 0 15 4 15 4 15 4
Belt No. ... Length 1 35 1 35 1 49 2 45 2 88 2 88 2 63 2 100 2 98 8
FSR (Rpm) (Note 2) 495 --700 600 -850 568 -720 700 -875 605 -750 685 -845 627,672,717 650,695,762 785,828,895
Speed Change per Vi
turn of Pulley 18 22 14 5 17 5 14 5 16 0 - - -
Flange (Rpm)
Moveable Pulley —
Max full turns from 5K. 5K> 6 5 6 6 - - -
Closed Position
PRESSURESTAT Setting s (psig)
, Cutout BA-280 BB -375
High _ , .
® Cut-in BA -180 BB-275
, Cutout 27 29
Low _ .
Cut-in 60 63
EVAPORATOR COILS
Rows 3 3 3 4 4 4 4 4 4
Fins/ln. 13 13 13 1 1 11 11 11 13
Face (sq ft) 7 31 8 54 16 90 18 04 22 6 26 9 36 5 46 3 46 3
FILTERS, Low Vel**
3 16x25x2 6 25x20x2 6 25x20x2 10 20x25x2 10 20x25x2
No. ..Size (in.) 4 16x20x1 4 16x20x1
3 20x25x2 3 .20x25x2 2 16x20x2 2 16x20x2 5 16x25x2 5 16x25x2
t
FSR -
PDR -
PPD -
SC
ST
TT
Fan Speed Range
Pitch Diameter Range
Pulley Pitch Diameter
Shell and Coil
Shell and Tube
Tube in Tube
Add 140 lb for plenum
Does not include charge for matching air-cooled condenser or
connecting
piping used with 50BB units All 50BB units are
shipped with holding charge
4O6EE on System 2
**Filters shown are supplied with unit Field-supplied 2-in filters
will fit 008 and 01 2 units
NOTES:
1 Compressor rprn on 50BA008 is 3450
2 Fan motor pulleys on 50BA.BB044, 054 and 064 are fixed
pitch
3 Maximum fan speed for all units is 11 00 rpm
Rigging and Unit Placement — Inspect unit for
shipping damage. File any claim with trans­
portation agency. Provide space around unit for
service, filter access, and clearance for plenum, if
used. Move and store unit in upright position. 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. However,
if additional dampening is desired, place sponge
rubber, rubber mat or fiberglass roof insulation
between floor and base of unit or install vibration
isolators.
Units 50BA,BB008 thru 024 are shipped for
vertical discharge. If horizontal discharge is desired
on 008 and 012 units, a field-fabricated elbow
must be installed. On 016 and 024 units for top
mounted horizontal discharge, accessory filler
panels must be field installed (see Fig. 2).
I