Disconnect Switch Bracket For Optional Belt-Drive; Gas Piping; Pipe Sizing; Typical Field Wiring - York SUNLINE PLUS D2EG 048 Installation Instruction

035-14832-003-A-0204
COOLING / HEATING (24 VOLT THERMOSTAT)
REFER TO THE ELECTRICAL
DATA TO SIZE THE DISCONNECT
SWITCH, THE WIRING AND THE
OVERCURRENT PROTECTION
FIG. 3 - TYPICAL FIELD WIRING
DISCONNECT SWITCH BRACKET FOR UNITS
WITH OPTIONAL BELT-DRIVE BRACKET
A special bracket for mounting a field-supplied disconnect
switch is provided in each unit ordered with an optional belt-
drive supply air blower. The bracket is shipped inside the
blower compartment taped to the top of the blower housing.
Install the bracket on the left hand side of the unit as shown in
Figure 9. Several existing screws at the top of the unit and one
approximately midway down from the top will be used for
mounting the bracket. Screws should be loosened only - NOT
REMOVED. Mounting holes in the bracket have elongated
keyways allowing easy installation. Re-tighten screws after
bracket is in place to ensure panels will remain leak tight.

GAS PIPING

Proper sizing of gas piping depends on the cubic feet per hour
of gas flow required, specific gravity of the gas and the length of
run. "National Fuel Gas Code" Z223.1 should be followed in all
cases unless superseded by local codes or gas company
requirements. Refer to Table 3.
Unitary Products Group
CONTROL WIRING
COOLING / HEATING (ELECTRONIC THERMOSTAT)
POWER WIRING
REFER TO THE ELECTRICAL
DATA TO SIZE THE DISCONNECT
SWITCH, THE WIRING AND THE
OVERCURRENT PROTECTION
The heating value of the gas may differ with locality. The value
should be checked with the local gas utility.
NOTE: There may be a local gas utility requirement specifying
a minimum diameter for gas piping. All units require a
1/2 inch pipe connection at the entrance fitting.
TABLE 3 - PIPE SIZING
Length in Feet
1/2 in.
10 132
20
30
40
50
60
70
80
90
100
Maximum capacity of pipe in cubic feet of gas per hour. (Based upon a pressure drop of 0.3 inch
water column and 0.6 specific gravity gas).
2
3
Nominal Iron Pipe Size
1 in.
3/4 in.
278 520
92 190 350
73 152 285
63 130 245
56 115 215
50 105 195
46 96 180
43 90 170
40 84 160
38 79 150
1-1/4 in.
1,050
730
590
500
440
400
370
350
320
305
5