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Table 1E — Physical Data (48ZT,ZW075-105) (cont)
LEGEND
Table 2 — Operating Weights of Options and Accessories (lb)
*Includes hood.
BASE UNIT 48ZT,ZW075 48ZT,ZW090 48ZT,ZW105
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
FILTERS
Standard Efficiency Throwaway (Standard) 12...20 x 25 x 2 12...20 x 25 x 2 12...20 x 25 x 2
Quantity...Size (in.) 12...20 x 20 x 2 12...20 x 20 x 2 12...20 x 20 x 2
30% and 65% Pleated (Optional) 12...20 x 25 x 2 12...20 x 25 x 2 12...20 x 25 x 2
Quantity...Size (in.) 12...20 x 20 x 2 12...20 x 20 x 2 12...20 x 20 x 2
OUTSIDE AIR SCREENS
Standard Hood (25%) Quantity...Size (in.)
8...25 x 16 x 1
2...20 x 16 x 1
8...25 x 16 x 1
2...20 x 16 x 1
8...25 x 16 x 1
2...20 x 16 x 1
CV — Constant Volume
HGBP — Hot Gas Bypass
MBtuh— Btuh in Thousands
TXV — Thermostatic Expansion Valve
VAV — Variable Air Volume
OPTION OR ACCESSORY
UNIT SIZE
030,035 040,050 055 060 070 075 090 105
Roof Curb 450 480 515 515 515 560 560 560
Condenser Section Roof Curb — — 540 540 625 625 625 625
Economizer* 300 300 530 530 530 530 530 530
Power Exhaust* 600 600 710 710 710 710 710 710
Barometric Relief 200 200 200 200 200 200 200 200
Return Exhaust Fan* — — — — — 1470 1470 1470
High-Efficiency Filters 20 20 20 20 20 — — —
Bag Filters 35 35 40 40 40 — — —
Hail Guard 120 150 145 145 210 210 210 210
Copper Condenser Coil Fins 180 235 235 235 420 420 420 420
Inlet Guide Vanes 95 95 115 115 115 115 115 115
Variable Frequency Drive
7.5 hp
10 hp
15 hp
20 hp
25 hp
30 hp
40 hp
50 hp
60 hp
75 hp
65
65
110
111
190
—
—
—
—
—
65
65
110
111
190
190
—
—
—
—
—
—
110
111
190
190
190
—
—
—
—
—
110
111
190
190
190
—
—
—
—
—
110
111
190
190
190
—
—
—
—
—
—
—
—
152
155
263
266
266
—
—
—
—
—
152
155
263
266
266
—
—
—
—
—
152
155
263
266
266
High-Capacity Evaporator Coil — 300 300 300 300 300 300 300