York SUNLINE ULTRA D1HG 048, Инструкция по установке

Страница: 5 / 24

035-14841-000 Rev. A (0701)
Unitary Products Group 5
BEFORE LIFTING A UNIT, MAKE SURE THAT ITS
WEIGHT IS DISTRIBUTED EQUALLY ON THE CABLES
SO THAT IT WILL LIFT EVENLY.
Units may also be moved or lifted with a forklift. Slotted open-
ings in the base rails are provided for this purpose.
LENGTH OF FORKS MUST BE A MINIMUM OF 42".
Remove the nesting brackets from the four corners on top of
the unit. All screws that are removed when taking these
brackets off must be replaced on the unit.
Refer to Table 2 for unit weights and to Figure 1 for approxi-
mate center of gravity.
CLEARANCES
All units require certain clearances for proper operation and
service. Refer to Figure 5 for the clearances required for
combustible construction, servicing, and proper unit opera-
tion.
DUCTWORK
Ductwork should be designed and sized according to the
methods in the manuals of the Air Conditioning Contractors
of America (ACCA).
A closed return duct system shall be used. This shall not pre-
clude use of economizers or outdoor fresh air intake. The
supply and return air duct connections at the unit should be
made with flexible joints to minimize the transmission of
noise.
The supply and return air duct systems should be designed
for the CFM and static requirements of the job. They should
NOT be sized to match the dimensions of the duct connec-
tions on the unit.
Refer to Figure 5 for information concerning side and bottom
supply and return air duct openings.
FILTERS
1" filters are supplied with each unit. 2" replacement filters
may be used with no modification to the filter racks. Filters
must always be installed ahead of the evaporator coil and
must be kept clean or replaced with same size and type. Dirty
filters will reduce the capacity of the unit and will result in
frosted coils or safety shutdown. Minimum filter area and
required sizes are shown in Table 2.
CONDENSATE DRAIN
Plumbing must conform to local codes. Use a sealing com-
pound on male pipe threads. Install a condensate drain line
from the 3/4" PVC female connection on the unit to spill into
an open drain.
NOTE: The condensate drain line MUST be trapped to pro-
vide proper drainage. See Figure 2.
SERVICE ACCESS
Access to all serviceable components is provided by the fol-
lowing removable panels:
• Compressor compartment
• Heater compartment
• Blower compartment
• Main control box
• Filter compartment
• Motor Access (on units w/belt-drive option)
FIGURE 1 : CENTER OF GRAVITY
Do not permit overhanging structures or shrubs to
obstruct outdoor air discharge outlet.
Front
Approximate
Center of
Gravity
A
B
44-7/8"
82-1/4"
3, 4, 5 Ton
19-3/4"
40-3/4"
Dim.
A
B
When fastening ductwork to the side duct flanges
on the unit, insert the screws through the duct
flanges only. DO NOT insert the screws through
the casing.
Outdoor ductwork must be insulated and water-
proofed.
FIGURE 2 : RECOMMENDED DRAIN PIPING