Page 5
Rigging Unit For Lifting
Rig unit for lifting by attaching four cables to holes in unit
base rail. See figure 2.
1- Detach wooden base protection before rigging.
2- Connect rigging to the unit base using both holes in
each corner.
3- All panels must be in place for rigging.
4- Place field‐provided H‐style pick in place just above
top edge of unit. Frame must be of adequate
strength and length. (H-style pick prevents damage
to unit.)
5-
All Units -
Partially lift unit and remove five (5) L-brackets which
secure the protective base board. See figure 2.
Important - Protective wooden base board
must be removed before setting unit.
6-
New roof curbs (89-3/8” in length) -
Remove the three alignment brackets shown in figure 3.
7-
Existing roof curbs (81-3/4” in length) -
Set unit on roof curb positioning alignment brackets
as shown in figure 3.
FIGURE 2
CAUTION - Do not
walk on unit.
IMPORTANT - ALL
PANELS MUST BE IN
PLACE FOR RIGGING.
RIGGING - ALL UNITS
LIFTING POINT SHOULD
BE DIRECTLY ABOVE
CENTER OF GRAVITY
*Maximum weight with all avail
able installed accessories.
1270
ZH
576
Unit
*Weight
Lbs.
Kg.
REMOVE FIVE (5)
L-BRACKETS AND BASE
PROTECTION BOARD
FIGURE 3
UNIT ALIGNMENT BRACKETS
THREE (3) UNIT
ALIGNMENT
BRACKETS
ROOF CURB
NEW ROOF CURBS (89-3/8” IN LENGTH):
Remove all three brackets.
EXISTING ROOF CURBS (81-3/4” LONG):
Set unit on roof curb positioning alignment brackets as shown.
Condensate Drains
Make drain connection to the 1” N.P.T. drain coupling
provided on unit.
Note - The drain pan is made with a glass reinforced
engineered plastic capable of withstanding typical joint
torque but can be damaged with excessive force. Tighten
pipe nipple hand tight and turn an additional quarter turn.
A trap must be installed between drain connection and an
open vent for proper condensate removal. See figure 4. It
is sometimes acceptable to drain condensate onto the
roof or grade; however, a tee should be fitted to the trap to
direct condensate downward. The condensate line must
be vented. Check local codes concerning condensate
disposal. Refer to page 2 for condensate drain location.
Units are shipped with the drain coupling facing the right
side of the unit. The unit can be installed in either
downflow or horizontal air discharge regardless of
condensate drain location.
FIGURE 4
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UNIT
Minimum Pitch
1” (25 mm) per
10' (3 m) of line
MOUNTING
FRAME
OPEN VENT
CONDENSATE DRAIN CONNECTION
CAULK AROUND CONDENSATE COUPLING
