Static Resistances; Power Exhaust Performance; Blower Motor And Drive Data - York SUNLINE 2000 B1CH180 Installation Instructions Manual

TABLE 8 - STATIC RESISTANCES
DESCRIPTION
WET INDOOR COIL
ELECTRIC HEAT OPTIONS
ECONOMIZER OPTION
HORIZONTAL DUCT CONNECTIONS
1
Deduct these resistance values from the available external static pressures shown in the respective Blower Performance Table. (See Note 2 for exception.)
2
Since the resistance to air flow will be less for horizontal duct connections than for bottom duct connections, add these pressures to the ESP values on the
respective unit's blower performance table.
TABLE 9 - 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 10 - 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
1
All 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
1
EXTERNAL STATIC PRESSURE DROP
18 KW
36 KW
54 KW
72 KW
2
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
0.1 0.2 0.3
0.2 0.3 0.4
0.2 0.4 0.6
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 9400
0.1 0.1
0.1 0.1
0.1 0.2
0.2 0.3
0.2 0.4
0.1 0.1
0.2 0.3
0.5 0.6
KW CFM
0.93 3000 0.99
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 BX80
511.06-N3Y
0.1
0.1
0.3
0.4
0.6
0.1
0.5
KW
-
-
BELT
(NOTCHED)
PITCH
LENGTH QTY.
(IN.)
71.8 1
69.8 1
84.8 1
81.8 1
13