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036-21060-004-A-1102
Unitary Products Group
15
TABLE 6: STATIC RESISTANCES
1
- EXTERNAL STATIC PRESSURE DROP
DESCRIPTION
RESISTANCE, Pa / iwg
m
3
/s / CFM
3.78/ 8,000
4.25 / 9,000
4.72 / 10,000
WET COIL
25 / 0.1
25 / 0.1
25 / 0.1
GAS HEAT
25 / 0.1
25 / 0.1
25 / 0.1
ELECTRIC HEAT OPTIONS
18 KW
25 / 0.1
25 / 0.1
25 / 0.1
36 KW
25 / 0.1
50 / 0.2
75 / 0.3
54 KW
50 / 0.2
75 / 0.3
100 / 0.4
72 KW
50 / 0.2
100 / 0.4
150 / 0.6
ECONOMIZER OPTION
25 / 0.1
25 / 0.1
25 / 0.1
HORIZONTAL DUCT CONNECTIONS
50 / 0.2
75 / 0.3
125 / 0.5
1.Deduct these resistance values from the available unit ESP values listed in the respective blower performance table except for Horizontal Duct Connections
Add these values due to less airflow resistance.
TABLE 7: BLOWER MOTOR AND DRIVE DATA
MODEL
SIZE
BLOWER
RANGE
(RPM)
MOTOR
1
ADJUSTABLE
MOTOR PULLEY
2
FIXED BLOWER PULLEY
(NOTCHED)
kW / HP
FRAME
EFF. (%)
DESIG-
NATION
DIA. mm
(IN.)
PITCH
BORE
DESIG-
NATION
PITCH
DIA.
BORE
DESIG-
NATION
PITCH
LENGTH
QTY
300
950 /1130
7.5 / 10
254T
89
1LVP58
B70A
157-188
6.2-7.4)
A2
BUSHING
1B5V94
241 (9.5)
B
BUSHING
5VX840
2134
(84)
1
1. All motors have a nominal speed of 1450 RPM, a 1.15 service factor and a solid base. They can operate to the limit of their service factor because
they are located in the moving air, upstream of any heating service.
2. Do NOT close this pulley below one turn.