Bottom Supply Air Blower Performance - 230 & 460 Volts; Additional Static Pressure Resistance 2-1/2 - 3 Ton (Dnh030 - 036); Ton (Dnh042 - 060) - York AFFINITY 291627-YTG-B-0807 Technical Manual

291627-YTG-B-0807
TABLE 13: 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 8, 9, 10, and 11
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.
** = Minimum wire size of 18 AWG
wire should be used for all
field installed 24 volt wire.
PROGRAMMABLE
THERMOSTAT ONLY
FIGURE 3 - TYPICAL FIELD CONTROL WIRING DIAGRAM
FIGURE 4 - TYPICAL FIELD POWER WIRING DIAGRAM
Unitary Products Group
1,100 1,200 1,300
.02 .03 .04
.02 .02 .02
.04 .04 .05
THERMOSTAT UNIT TERMINAL STRIP
R
G
Y
W
C
CONTACTOR
GROUND
REFER TO ELECTRICAL
LUG
DATA TABLES TO SIZE
THE DISCONNECT
RESISTANCE, IWG
CFM
1,400 1,500 1,600
.05 .06 .07
.03 .03 .04
.05 .06 .07
**
R
G
Y
W
C
FIELD-SUPPLIED
DISCONNECT
1
1,700 1,800 1,900
.07 .08 .09
.04 .04 .05
.08 .09 .10
NOTE:
HEAT ANTICIPATOR
SHOULD BE SET AT 0.35
AMPS FOR ALL MODELS.
24 VOLT
TRANSFORMER
THREE
PHASE
POWER
SUPPLY
2,000
.09
.05
.11
17