York Sunline 2000 - Belt Drive Blower Motor and Drive; Static Resistances; Belt Drive Rpm Selection

362242-YIM-B-0109
34 Johnson Controls Unitary Products
1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.
2. The pressure through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct system is less than
0.25 IWG, the unit will deliver less CFM during full economizer operation.
TABLE 26: BELT DRIVE RPM SELECTION
Size
(Tons)
HP
Max
BHP
Motor
Sheave
Blower
Sheave
5 Turns
Open
4 Turns
Open
3 Turns
Open
2 Turns
Open
1 Turn
Open
Fully
Closed
036
(3)
1.5 1.73 1VL44 AK64 805 865 920 980 1035 1095
1.5 1.73 1VP56 AK66 1115 1170 1225 1280 1335 1390
048
(4)
1.5 1.73 1VL44 AK56 930 995 1060 1130 1195 1260
1.5 1.73 1VP56 AK61 1210 1270 1330 1390 1455 1515
060
(5)
1.5 1.73 1VL44 AK56 930 995 1060 1130 1195 1260
2 2.3 1VP56 AK56 1325 1395 1460 1525 1590 1660
072
(6)
1.5 1.73 1VL44 AK56 930 995 1060 1130 1195 1260
3 3.45 1VP56 AK56 1325 1395 1460 1525 1590 1660
TABLE 27: BELT DRIVE BLOWER MOTOR AND DRIVE DATA
Size
(Tons)
Motor Motor Sheave Blower Sheave
Belt
HP RPM Eff. SF Frame
Datum Dia.
(in.)
Bore (in.) Model
Datum Dia.
(in.)
Bore (in.) Model
036
(3.0)
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 6.0 1 AK64 A37
1-1/2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 6.2 1 AK66 A39
048
(4.0)
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 5.2 1 AK56 A36
1-1/2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 5.7 1 AK61 A38
060
(5.0)
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 5.2 1 AK56 A36
2 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 5.2 1 AK56 A38
072
(6.0)
1-1/2 1725 0.8 1.15 56 2.8 - 3.8 7/8 1VL44 5.2 1 AK56 A36
3 1725 0.8 1.15 56 4.0 - 5.0 7/8 1VP56 5.2 1 AK56 A38
TABLE 28:STATIC RESISTANCES
DESCRIPTION
RESISTANCE, IWG
CFM
1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000
ECONOMIZER
1,2
0.07 0.08 0.09 0.11 0.13 0.15 0.17 0.20 0.23 0.26 0.30
ELECTRIC
HEATERS
1
7-15KW0.040.050.060.070.080.100.120.140.160.190.22
20-30KW 0.06 0.07 0.08 0.09 0.11 0.13 0.15 0.17 0.20 0.23 0.26
BOTTOM DUCT CONNECTIONS
1
0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.14 0.16 0.19 0.22