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5567611-BIM-B-1218
Table 21: RPM selection
Size
Model Airflow option
(tons)
Standard
-06
ZV
(6.5)
High static
-07
Standard
ZV
(7.5)
High static
-08
Standard
ZV
(8.5)
High static
Standard
-10
ZV
(10)
High static
Standard
-12
ZV
(12.5)
High static
Table 22: Indoor blower specifications
Size
Model
(tons)
HP
Standard
-06
ZV
(6.5)
High static
-07
Standard
ZV
(7.5)
High static
-08
Standard
ZV
(8.5)
High static
-10
Standard
ZV
(10)
High static
Standard
-12
ZV
(12.5)
High static
Table 23: Power exhaust specifications
Model
Voltage
2PE04704706
208/230-1-60
2PE04704746
460-1-60
2PE04704758
575-1-60
1. Motors are multi-tapped and factory wired for high speed.
Air balance
Start the supply air blower motor. Adjust the resistances in both
the supply and the return air duct systems to balance the air
distribution throughout the conditioned space. The job
specifications may require that this balancing be done by
someone other than the equipment installer.
You must adjust the belt drive blower systems to the
specific static and CFM requirements for the application.
The belt drive blowers are not set at the factory for any
specific static or CFM. You must adjust the blower speed
and belt tension.
Verify proper sheave alignment. Tighten the blower
pulley and motor sheave set screws after these
adjustments. Re-check the set screws after 10-12 hours
of run time.
56
Max
Motor
Blower
HP
BHP
sheave
sheave
1.5
1.725
1VL40
2
2.3
1VM50
1.5
1.725
1VL40
3
3.45
1VM50
2
2.3
1VM50
3
3.45
1VM50
2
2.3
1VM50
3
3.45
1VM50
3
3.45
1VM50
5
5.75
1VP56
Motor
RPM
Eff.
SF
Frame
1-1/2
1725
0.8
1.15
2
1725
0.8
1.15
1-1/2
1725
0.8
1.15
3
1725
0.8
1.15
2
1725
0.8
1.15
3
1725
0.8
1.15
2
1725
0.8
1.15
3
1725
0.8
1.15
3
1725
0.8
1.15
5
1725
0.87
1.15
Motor
1
HP
RPM
QTY
3/4
1075
1
3/4
1075
1
3/4
1050
1
6 turns
5 turns
open
open
AK74
N/A
663
AK74
N/A
884
AK69
N/A
714
AK69
N/A
952
AK89
N/A
737
AK74
N/A
903
AK84
N/A
781
AK74
N/A
903
AK74
N/A
908
BK77
1104
1102
Motor sheave
Datum dia.
Bore (in.) Model
(in.)
56
2.6 - 3.6
7/8
56
3.6 - 4.6
7/8
56
2.6 - 3.6
7/8
56
3.6 - 4.6
7/8
56
3.4 - 4.4
7/8
56
3.4 - 4.4
7/8
56
3.4 - 4.4
7/8
56
3.4 - 4.4
7/8
56
3.4 - 4.4
7/8
184T
4.3 - 5.3
1-1/8
Unit (per circuit)
LRA
FLA
24.9
5
N/A
2.2
N/A
1.5
Checking air quantity
Method one
1.
Remove the dot plugs from the duct panel.
2.
Insert eight-inches of 1/4 inch metal tubing into the airflow
on both sides of the indoor coil.
Note: You must insert the tubes and hold them in a position
perpendicular to the air flow so that velocity pressure
does not affect the static pressure readings.
3.
Use an inclined manometer or Magnehelic® to determine
the pressure drop across a dry evaporator coil. The
moisture on an evaporator coil can vary greatly, measuring
the pressure drop across a wet coil under field conditions
could be inaccurate. To ensure that the coil is dry, de-
activate the compressors de-activated while the test is
being run.
Note: De-energize the compressors before you take any test
measurements to ensure that the evaporator coil is dry.
4 turns
3 turns
2 turns
open
open
open
713
759
803
927
977
1025
761
799
852
1002
1043
1104
775
812
851
943
985
1028
819
859
897
943
985
1028
955
1003
1049
1157
1200
1246
Blower sheave
Datum dia.
Bore (in.) Model
(in.)
1VL40
7.0
1VM50
6.0
1VL40
7.0
1VM50
5.7
1VM50
9.0
1VM50
7.0
1VM50
8.0
1VM50
7.0
1VM50
7.0
1VP56
6.7
Fuse size
MCA
6.3
10
2.8
5
1.9
4
Johnson Controls Ducted Systems
1 turn
Fully
open
closed
840
882
1074
1121
905
955
1140
1202
889
926
1071
1113
932
969
1076
1113
1094
1142
1282
1328
Belt
1
AK74
1
AK74
1
AK69
1
AK69
1
AK89
1
AK74
1
AK84
1
AK74
1
AK74
1
BK77
CFM @ 0.1 ESP
4800
4800
4800
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