251933-YTG-J-1009
52
Johnson Controls Unitary Products
Belt Drive RPM Selection
Size
(Tons)
Model
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)
ZF/ZR
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)
ZF/ZR
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)
ZF/ZR
1.5
1.73
1VL44
AK56
930
995
1060
1130
1195
1260
2
2.3
1VP56
AK56
1325
1395
1460
1525
1590
1660
036
(3)
XP
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)
XP
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)
XP
1.5
1.73
1VL44
AK56
930
995
1060
1130
1195
1260
2
2.3
1VP56
AK56
1325
1395
1460
1525
1590
1660
Additional Static Resistance
Size
(Tons)
CFM
Cooling Only
1
1. Add these values to the available static resistance in the respective Blower Performance
Tables (ZF, ZR Only).
Economizer
2
3
2. Deduct these values from the available external static pressure shown in the respective
Blower Performance Tables.
3. The pressure drop through the economizer is greater for 100% outdoor air than for 100%
return air. If the resistance of the return air duct is less than 0.25 IWG, the unit will deliver
less CFM during full economizer operation.
Electric Heat kW
2
7 - 15
20 - 30
036 (3.0)
048 (4.0)
060 (5.0)
1000
0.08
0.07
0.04
0.06
1200
0.10
0.08
0.05
0.07
1400
0.12
0.09
0.06
0.08
1600
0.14
0.11
0.07
0.09
1800
0.16
0.13
0.08
0.11
2000
0.18
0.15
0.10
0.13
2200
0.20
0.17
0.12
0.15
2400
0.23
0.20
0.14
0.17
2600
0.26
0.23
0.16
0.20
2800
0.29
0.26
0.19
0.23
3000
0.32
0.30
0.22
0.26