Carrier 48P2 Electric Heater User Manual


 
7
Table 1C — Physical Data 48P2,P3,P4,P5075-100 (cont)
LEGEND *See Table 3 — High-Capacity Power Exhaust Data for more information. See
Table 7 — Power Exhaust Fan Drive Data on page 9 for more information.
Table 2 — Optional Return Fan Physical Data (48P075-100 Only)
Table 3 — Optional High-Capacity Power Exhaust Physical Data (48P075-100 Only)
Table 4 — Optional Humidi-MiZer
®
Coil Data
BASE UNIT 48P2,P3,P4,P5075 48P2,P3,P4,P5090 48P2,P3,P4,P5100
OPTIONAL POWER EXHAUST* Centrifugal, 18 x 15 in. (Any motor available on any unit.)
Quantity...Motor Hp 2...5 2...7.5 2...10
Motor Frame Size 184T 213T 215T
Efficiency at Full Load (%)
High Efficiency 87.5 88.5 89.5
Premium Efficiency 89.5 91.7 91.7
Fan Pulley Pitch Diameter (in.) 10.6 10.6 10.6
Motor Pulley Pitch Diameter (in.) 4.5 5.0 5.6
Shaft Diameter at Pulley (in.) 1
7
/
16
1
7
/
16
1
7
/
16
Resulting Fan Rpm 740 820 920
Maximum Allowable Rpm 1000 1000 1000
FILTERS
Standard Efficiency Throwaway
(Standard)
Quantity...Size (in.) 12...20 x 25 x 2, 12...20 x 20 x 2 12...20 x 25 x 2, 12...20 x 20 x 2 12...20 x 25 x 2, 12...20 x 20 x 2
30% and 65% Pleated (Optional)
Quantity...Size (in.) 12...20 x 25 x 2, 12...20 x 20 x 2 12...20 x 25 x 2, 12...20 x 20 x 2 12...20 x 25 x 2, 12...20 x 20 x 2
OUTSIDE AIR SCREENS
Standard Hood (25%) Quantity...Size (in.) 4...25 x 16 x 1, 2...20 x 16 x 1 4...25 x 16 x 1, 2...20 x 16 x 1 4...25 x 16 x 1, 2...20 x 16 x 1
OPTIONAL ECONOMIZER FILTER Aluminum Frame, Permanent
Quantity...Size (in.) 12...16 x 25 x 1, 2...16 x 20 x 1 12...16 x 25 x 1, 2...16 x 20 x 1 12...16 x 25 x 1, 2...16 x 20 x 1
MBtuh — Btuh in Thousands
TXV Thermostatic Expansion Valve
BASE UNIT 48P2,P3,P4,P5075-100
RETURN FAN Plenum Fan, 47.13 in. (Any motor available on any unit.)
Quantity...Motor Hp 1...20 1...25 1...30 1...40
Motor Frame Size 256T 284T 286T 324T
Efficiency at Full Load (%) High/Premium 91.0/93.6 91.7/93.6 92.4/93.6 93.0/93.8
Fan Pulley Pitch Diameter (in.) 8.5 9.8 8.5 8.5
Motor Pulley Pitch Diameter (in.) 5.3 6.7 6.1 6.7
Shaft Diameter at Pulley (in.) 2
15
/
16
2
15
/
16
2
15
/
16
2
15
/
16
Resulting Fan Rpm 1104 1209 1271 1396
Maximum Allowable Rpm 1447 1447 1447 1447
BASE UNIT 48P2,P3,P4,P5075-100
POWER EXHAUST Centrifugal, 22 x 20 in., 1
11
/
16
in. shaft diameter (Any motor available on any unit)
Total Hp 20 30 40 50 60
Quantity...Motor Hp 2...10 2...15 2...20 2...25 2...30
Motor Frame Size S215T D254T S256T S284T S286T
Efficiency at Full Load (%)
High Efficiency 89.5 91 91 91.7 92.4
Premium Efficiency 91.7 93 93.6 93.6 93.6
Fan Sheave Pitch Diameter (in.) 12.4 12.4 11.1 11.1 11.1
Motor Sheave Pitch Diameter (in.) 4.8 5.8 5.9 6.5 6.9
Resulting Fan Rpm 714 841 928 1020 1094
Maximum Allowable Rpm 1175 1175 1175 1175 1175
Belts — Quantity...Type 2...BX93 2...BX93 2...5VX950 2...5VX950 2...5VX950
UNIT SIZE 48/50P 030-075 090,100
Humidi-MiZer Coil Construction Aluminum Novation
®
Coil
Quantity 11
Face Area (sq ft) 26.7 33.3