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2. Instruction in any special operation or precaution.
3. Condition of the load as it relates to operation of the
lifting kit, such as balance, temperature, etc.
Follow all applicable safety codes. Wear safety shoes and work
gloves.
A
B
A-B
1/4
(6.35)
Figure 6 - - Unit Leveling Tolerances
INSPECTION
Prior to initial use, and at monthly intervals, all rigging shackles,
clevis pins, and straps should be visually inspected for any
damage, evidence of wear, structural deformation, or cracks.
Particular attention should be paid to excessive wear at hoist
hooking points and load support areas. Materials showing any
kind of wear in these areas must not be used and should be
discarded.
WARNING
!
UNIT FALLING HAZARD
Failure to follow this warning could result in personal
injury or death.
Never stand beneath rigged units or lift over people.
1. Leave top shipping skid on the unit for use as a spreader
bar to prevent the rigging straps from damaging the unit.
If the skid is not available, use a spreader bar of
sufficient length to protect the unit from damage.
WARNING
!
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal
injury.
When straps are taut, the clevis should be a minimum
of 36 in. (914 mm) above the unit top cover.
Rigging/Lifting of Unit (See Figure 5)
WARNING
!
UNIT FALLING HAZARD
Failure to follow this warning could result in personal
injury or death.
Large base units must be secured to common curb
before allowing full weight of unit to rest on curb.
Install screws through curb into unit base rails while
rigging crane is still supporting unit.
Lifting holes are provided in base rails as shown.
1. Attach shackles, clevis pins, and straps to the base rails
of the unit. Be sure materials are rated to hold the weight
of the unit (See Figure 5).
51901190402
C
MAXIMUM ALLOWABLE
DIFFERENCE in. (mm)
B-C
A-C
(6.35)
(6.35)
1/4
1/4
A07925
2. Attach a clevis of sufficient strength in the middle of the
straps. Adjust the clevis location to ensure unit is lifted
level with the ground.
After the unit is placed on the roof curb or mounting pad,
remove the top skid.
OPTIONAL
RETURN
AIR
OPENING
2˝
(50.8mm)
EVAP. COIL
Figure 7 - - Slab Mounting Detail
Step 6 — Connect Condensate Drain
NOTE: When installing condensate drain connection be sure
to comply with local codes and restrictions.
Model PAR5 disposes of condensate water through a 3/4 in.
NPT fitting which exits through the base on the evaporator coil
access side. See Figure 2 and Figure 3 for location.
Condensate water can be drained directly onto the roof in
rooftop installations (where permitted) or onto a gravel apron in
ground level installations. Install a field--supplied 2--in. (51 mm)
condensate trap at end of condensate connection to ensure
proper drainage. Make sure that the outlet of the trap is at least
1 in. (25 mm) lower than the drain pan condensate connection
to prevent the pan from overflowing (See Figure 8). When
using a gravel apron, make sure it slopes away from the unit.
Connect a drain tube using a minimum of 3/4 --in. PVC or 3/4
--in. copper pipe (all field--supplied) at the outlet end of the 2--in.
(51 mm) trap. Do not undersize the tube. Pitch the drain tube
downward at a slope of at least 1--in. (25 mm) for every 10 ft
(3.1 m) of horizontal run. Be sure to check the drain tube for
leaks. Prime trap at the beginning of the cooling season
start--up.
1-in. (25 mm) min.
Figure 8 - - Condensate Trap
Step 7 — Install Duct Connections
The design and installation of the duct system must be in
accordance with the standards of the NFPA for installation of
non--residence type air conditioning and ventilating systems,
NFPA 90A or residence type, NFPA 90B and/or local codes
and ordinances.
Select and size ductwork, supply--air registers, and return air
grilles according to ASHRAE (American Society of Heating,
Refrigeration,
and
Air
recommendations. The unit has duct flanges on the supply--
and return--air openings on the side of the unit.
When designing and installing ductwork, consider the following:
OPTIONAL
SUPPLY
AIR
OPENING
COND. COIL
TRAP
OUTLET
2-in. (51 mm) min.
Conditioning
Engineers)
A07926
A09052
7
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