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Table 1C — Physical Data (48ZG,ZN075-105) (cont)
LEGEND
BASE UNIT 48ZG,ZN075 48ZG,ZN090 48ZG,ZN105
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)
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.)
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
CV — Constant Volume
HGBP — Hot Gas Bypass
MBtuh— Btuh in Thousands
TXV — Thermostatic Expansion Valve
VAV — Variable Air Volume