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11
Fig. 6 — Rigging Details
POSITIONING ON CURB
For full perimeter curbs CRRFCURB074A00 and 075A00,the
clearance between the roof curb and the front and rear base
rails should be
1
/
4
-in. (6.4 mm). The clearance between the
curb and the end base rails should be
1
/
2
-in. (13 mm). For retro-
fit applications with curbs CRRFCURB003A01 and 4A01, the
unit should be position as shown in Fig. 7. Maintain the
15
1
/
2
-in. (394 mm) and 8
5
/
8
-in. (220 mm) clearances and allow
the 22
5
/
16
-in. (567 mm) dimension to float if necessary.
Fig. 7 — Retrofit Installation Dimensions
If the alternative condensate drain location through the bottom
of the unit is used in conjunction with a retrofit curb, the hole
in the curb must be moved 12
1
/
2
-in. (320 mm) towards the end
of the unit. (See Fig. 8.)
Although unit is weatherproof, guard against water from higher
level runoff and overhangs.
Remove all shipping materials and top skid. Remove extra cen-
ter post from the condenser end of the unit so that the condens-
er end of the unit matches Fig. 29 and 30. Recycle or dispose of
all shipping materials.
Fig. 8 — Alternative Condensate Drain Hole Positions
NOTE: If gas and/or electrical connections are not going to occur
at this time, tape or otherwise cover the fittings so that moisture
does not get into the building or conduit in the interim.
Step 7 — Convert to Horizontal and Connect
Ductwork (When Required)
Unit is shipped in the vertical duct configuration. Unit without
factory-installed economizer or return-air smoke detector op-
tion may be field-converted to horizontal ducted configuration.
To convert to horizontal configuration, remove screws from
NOTES:
1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not
used.
2. Dimensions in ( ) are in millimeters.
3. Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base
rails are centered around the unit center of gravity. Use wooden top to prevent rigging
straps from damaging unit.
UNIT
MAX
WEIGHT
DIMENSIONS
A
B
C
lb
kg
in.
mm
in.
mm
in.
mm
48HC**14
2215
1009
116.0
2945
62.5
1590
59.5
1510
DETAIL “A
”
PLACE ALL
S
EAL
S
TRIP IN PLACE BEFORE PLACING
UNIT ON ROOF CURB.
DUCT END
S
EE DETAIL “A
”
“B
”
“A
”
“C
”
36"-54"
(914-1371)
IMPORTANT: If the unit has the factory-installed Thru-the-
Base option, make sure to complete installation of the option
before placing the unit on the roof curb. See the following sec-
tions:
• Factory-Option Thru-Base Connections (Gas Connec-
tion) on page 15
• Factory-Option Thru-Base Connections (Electrical Con-
nections) on page 23
Original
Position
New Position
(moved 12.5-in.)
Summary of Contents for WeatherMaster 48HC14
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing 14 Size Unit cont ...
Page 9: ...9 Fig 4 Roof Curb Details ...
Page 25: ...25 Fig 48 48HC 14 Controls Wiring Diagram 208 230 v 460 v 575 v ...
Page 26: ...26 Fig 49 48HC 14 Power Wiring Diagram 208 230 v 460 v ...
Page 27: ...27 Fig 50 48HC 14 Power Wiring Diagram 575 v ...
Page 29: ...29 Fig 53 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 44: ...44 Fig 62 48HC14 ComfortLink Control Wiring Diagram ...
Page 45: ...45 Fig 63 48HC14 ComfortLink Power Wiring Diagram ...
Page 46: ...46 Fig 64 48HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...