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5
62--10458--00
UNIT
004 006 008,012
A
B
C
36.19(919)
21.88(556)
59.12(1501)
48(1219)
29.62(752)
69.50(1765)
D SEE NOTE 2
E 24(610)
F
G
H
J
13.81(351)
13.13(333)
0.75(19)
12.5(318)
16.44(418)
15(381)
0.75(19)
10.62(270)
19.38(492)
17.25(438)
1.31(33)
11.44(291)
K
L
M
N
P
Q
R
17.06(433)
20.50(521)
17(432)
31.88(810)
2.06(52)
10(254)
15.56(395)
23.25(591)
25.37(644)
17(432)
42.62(1083)
3(76)
12.50(318)
16(406)
NOTES:
1. Certified dimension drawings available upon request
2. Minimum required clearance at back of unit is zero.
Clearanceaboveandatright(90MA008,012only)andatleftof
unit depends on space required for accessory plenum,
ductwork, condenser piping, accessory heater piping,
condensate drain line and power wiring
3. Waterconnectionsare locatedon leftside ofunit(Referto
“Make Condenser Connections”, Condensate drain
connections are located on left side of unit for 004 & 006, and
on both sides of unit for 008 & 012.
Figure 2 Unit Dimensions
b. Attach a one--inch (2.5 cm) flange or attach a flanged,
flexible duct connection directly to unit.
If an outdoor makeup air damper is to be installed, at-
tach it directly to unit back panel and install flexible
connection between damper and remaining duct-
work. Use accepted ductwork installation proce-
dures. F ollow all applicable codes.
c. Completely blank off the standard return--airopening
with a field--fabricated fillerpanel. Thepanel must be
removable for service access. Refer to paragraph 5.1.
3.9 Check Return--Air Filters
Ensure filters shipped with unit are in place. Never
operate unit without return air filters in place.
DIMENSION “D” MUST BE EQUAL A LL AROUND
Figure 3 Horizontal Wheel Centering
3.10 Align Fan Shaft and Wheel
HORIZONTAL WHEEL CENTERING -- Allwheelsmustbe
horizontally centered between the inside edges of their
fan scroll ventures (Figure 3). Adjust as follows:
a. Loosen set screws holding wheel to shaft.
b. Center the wheel by sliding it horizontally.
c. Re--tighten set screws.
CONCENTRIC ALIGNMENT -- Shaft and wheels must be
concentrically centered with the venturi (Figure 4).
Shaft bearings are supported by bearing supports. If
shaft and wheels a re concentrically misaligned fro m
shipping shock,it is possible to re--bend bearing support
arms to original positions. Replace the bearing support
if it has been extensively damaged during shipping.
Figure 4 Concentric Wheel Alignment