Field Wiring Diagram Control Wiring; Power Wiring Field Diagram; Additional Static Pressure Resistance 3-1/2 - 5 Ton (Dnh042 - 060) - York DNH018 Technical Manual

036-21233-002-A-0903
TABLE 15: ADDITIONAL STATIC PRESSURE RESISTANCE 3-1/2 - 5 TON (DNH042 - 060)
DESCRIPTION
WET EVAPORATOR COIL
2
ECONOMIZER
FILTER FRAME KIT
1.
Deduct these resistance values from the available external static pressure shown in Table 10, 11, 12, and 13
2.
The pressure through the economizer is greater for 100% outdoor air then for 100% return air. If the resistance of the return air
duct system is less then 0.25 IWG, the unit will deliver less CFM during full economizer operation.
FIGURE 2 - FIELD WIRING DIAGRAM CONTROL WIRING
C O N T A C T O R
G R O U N D R E F E R T O E L E C T R I C A L
L U G D A T A T A B L E S T O
T H E D I S C O N N E C T
FIGURE 3 - POWER WIRING FIELD DIAGRAM
Unitary Products Group
1,100 1,200 1,300
.02 .03 .04
.02 .02 .02
.04 .04 .05
F I E L D - S U P P L I E D
D I S C O N N E C T
S I N G L E
P H A S E
P O W E R
S U P P L Y
S I Z E
RESISTANCE, IWG
CFM
1,400 1,500 1,600
.05 .06 .07
.03 .03 .04
.05 .06 .07
C O N T A C T O R
G R O U N D
R E F E R T O
L U G
D A T A T A B L E S T O
T H E D I S C O N N E C T
1
1,700 1,800 1,900
.07 .08 .09
.04 .04 .05
.08 .09 .10
F I E L D - S U P P L I E D
D I S C O N N E C T
E L E C T R I C A L
S I Z E
2,000
.09
.05
.11
T H R E E
P H A S E
P O W E R
S U P P L Y
19