York EHK-05G, Руководство по установке

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3.0 DUCTWORK
NOTE
On ductwork exposed to outside air space, use at least 2” of insulation and
a vapor barrier. Flexible joint may be used to reduce noise.
4.0 CONDENSATE DRAIN CONNECTION
1. Use the provided female NPT threaded fitting for outside connection and
make sure that drain holes are not blocked.
2. Insulation may be needed for drain line to prevent sweating.
3. Drain pan has two drain connections on each side to provide flexibility of
connection and drainage. Make sure proper pitch and plugging if second
connection is not used.
4. Use a sealing compound on male pipe threads. Install the condensate
drain line (NPT) to spill into an open drain.
5.Ensure a trap is included in the condensate drain line.
A closed return duct system shall be used. This shall not preclude use of
economizers or ventilation air intake. Flexible joints may be used in the
supply and return duct work to minimize the transmission of noise.
When fastening duct work 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 duct work must be insulated and waterproofed.
CAUTION
NOTE
Be sure to note supply and return openings. Refer to Fig. 2-3 and 2-5
for information concerning supply and return air duct openings.
Consult local codes for special requirements.
To provide extra protection from water damage, install an additional drain pan,
provided by installer, under the entire unit with a separate drain line. Manufac-
turer will not be responsible for any damages due to the failure to follow these
requirements.
4.1 INSTALL DRAIN PIPE
Ductwork should be sized and installed by the installing contractor in accor-
dance with the Manual D from the Air Conditioning Contractors of America, and
all national, state and local codes.