Static Resistances; Power Exhaust Performance; Blower Motor And Drive Data - York D2CG180 & 240 (STY. B) Installation Instructions Manual

TABLE 10 - STATIC RESISTANCES*
DESCRIPTION
WET COIL
ECONOMIZER OPTION
HORIZONTAL DUCT CONNECTIONS
*Deduct these resistance values from the available unit ESP values listed in the respective blower performance table except for Horizontal Duct Connections
(Shaded
TABLE 11 - POWER EXHAUST PERFORMANCE
MOTOR
SPEED
CFM
HIGH* 5250
MEDIUM 4900
LOW 4400
*Factory Setting
Power Exhaust motor is a 3/4 HP , PSC type with sleeve bearings, a 48 frame and inherent protection.
TABLE 12 - BLOWER MOTOR AND DRIVE DATA
BLOWER
MODEL
DRIVE RANGE
SIZE
(RPM)
HP FRAME
Stan-
850/1065
dard
15 TON
High
Speed 965/1190
Access
Stan-
870/1025
dard
20 TON 7.5
High
Speed 950/1120
Access
1All motors have a nominal speed of 1800 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 device.
2 Do NOT close this pulley below 1 turn open.
Unitary Products Group
EXTERNAL STATIC PRESSURE DROP
). Add these values due to less airflow resistance.
STATIC RESISTANCE OF RETURN DUCTWORK, IWG
0.2 0.3
KW CFM KW
0.83 4500 0.85
0.77 3900 0.79
0.72 3700 0.74
1
MOTOR ADJUSTABLE MOTOR PULLEY
OUTSIDE
EFF. DESIG-
(%) NATION
5 184T 83 1VP56
213T 89 1VP68
RESISTANCE, IWG
15 TON
4500 6000 7200
0.1 0.1 0.1
0.1 0.1 0.1
0.2 0.3 0.5
0.4
CFM KW CFM
4200 0.88 3750
3500 0.82 2900
3000 0.78
FIXED BLOWER PULLEY
PITCH
BORE DESIG-
DIA. DIA.
(IN.) NATION
(IN.) (IN.)
BK90
4.3-
5.35 1-1/8
2
5.3
BK80
BK120
5.5-
6.75 1-3/8
2
6.5
BK110
CFM
20 TON
6000 8000
0.1 0.1
0.1 0.1
0.2 0.3
0.5 0.6
KW CFM
0.93 3000
0.85 -
- - -
OUTSIDE PITCH
BORE DESIG-
DIA. DIA.
(IN.) NATION
(IN.) (IN.)
8.75 8.4 1 BX70
7.75 7.4 1 BX68
11.75 11.4 1-3/16 BX83
10.75 10.4 1-3/16 BX81
530.18-N6Y
9400
0.1
0.1
0.5
KW
0.99
-
-
BELT
(NOTCHED)
PITCH
LENGTH QTY.
(IN.)
71.8 1
69.8 1
84.8 1
81.8 1
15