Duct Connections; Service Connections; Long-Term Storage - Daikin SWP Series Installation Manual

Condensate Drain Connection
The condensate drain connection is 1 .25" NPT and is generally
located on the same end of the unit as the condenser water
connections . Run drain lines and traps full size from drain pan
connection . The trap depth and the distance must be twice the
static pressure in the drain pan section under normal operation
so the trap remains sealed . Pitch the condensate line away
from the unit with a minimum slope of 1/8" per foot (3 .2 mm/0 .3
meters) .
Keep drain pans and the drain trap clean by periodic cleaning .

Duct Connections

Refer to submittal drawings for duct connection dimensions .
Supply Air
To connect supply ductwork directly to the unit, first mount a
duct collar at the fan outlet . Fan discharge opening sizes are
indicated on the unit dimensional drawings . Daikin Applied
recommends a canvas type connecting collar .
Unit cannot be started until the ductwork is installed to avoid
injury
Return Air
Return air to the unit can be ducted or free, as follows .
Ducted return
Attach return ductwork to the 2" flange around the perimeter
of the unit's return air opening . Use a canvas-type duct
connecting collar . All ductwork connected to the unit must be
of adequate size and construction for the application . Also
use a canvas-type connector where the duct penetrates the
machine room wall(s) . This helps prevent vibration generated
by air movement in the duct from being transmitted out to the
occupied spaces .
Free return
Use the mechanical equipment room as a return plenum with
no hard connection at the unit .
NOTE: Some building codes do not allow using the
mechanical room as a return plenum . Check
applicable local codes for each installation .

Service Connections

Left-Hand—Right-Hand
Service connections are determined when facing the back
of the unit . Right-hand connections are standard; left-hand
connections are optional .
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WARNING

Long-term Storage

Project delays or site conditions can require the storage of
Daikin Applied Self-Contained Air Conditioning Units for an
extended period of time .
Location
The Daikin Applied Self-Contained Air Conditioning Unit is an
indoor unit . Care must be taken to store the unit indoors away
from weather conditions . While the area does not need to be
air conditioned, Daikin Applied recommends that the electronic
control equipment in the unit be stored in a 5% to 95% RH
(non-condensing) environment .
Shrink Wrap
Do not allow the shrink wrap to trap moisture on the outside
or inside surfaces of the unit . Shrink wrap must be removed
immediately after installation . Once the shrink wrap is removed
the unit(s) cannot be stored outdoors .
Preparation
Check that unit is set on a level surface and access panels are
properly secured .
Supply Fans
1 . Move the motor base to check and lubricate slides and
lead screws .
2 . Remove the drive belts and store them in the fan section .
3 . Pack fan and motor bearings (unless motor bearings
are sealed) with compatible grease with the shaft
stationary . After grease has been installed, rotate shaft
about 10 rotations .
4 . Isolate unit from shock and vibration .
5 . Once a month, rotate shaft a minimum of 10 revolutions .
Insure the stopped position is different than the original
position .
6 . Coat shafts with lubricant as needed to prevent corrosion .
7 . A descant bag may be hung in the interior of the unit to
minimize corrosion in humid storage environments .
8 . Do not clean galvanized steel surfaces with oil dissolving
chemicals . This may remove the protective coating and
accelerate corrosion .
9 . Adjustable sheaves should be opened as wide as
possible and the adjustment threads lubricated so they
do not corrode . Be careful not to put lubricant on the belt
running surface .
11 IM 1032-2 • Self-Contained Air Conditioning Systems
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