![background image](http://html.mh-extra.com/html/carrier/weathermaker-50tc07-series/weathermaker-50tc07-series_installation-instructions-manual_2560324021.webp)
21
Before setting the unit onto the curb, recheck gasketing on
curb.
Rigging materials under unit (cardboard or wood to prevent
base pan damage) must be removed PRIOR to placing the unit
on the roof curb.
When using the standard side drain connection, ensure the red
plug in the alternate bottom connection is tight. Do this before
setting the unit in place. The red drain pan can be tightened
with a
1
/
2
-in. square socket drive extension. For further details
see “Step 9 — Install External Condensate Trap and Line” on
POSITIONING ON CURB (50TC 07-14)
Position unit on roof curb so that the following clearances are
maintained:
1
/
4
-in. (6.4 mm) clearance between the roof curb
and the base rail inside the front and back, 0.0-in. clearance be-
tween the roof curb and the base rail inside on the duct end of
the unit. This will result in the distance between the roof curb
and the base rail inside on the condenser end of the unit being
approximately
1
/
4
-in. (6.4 mm).
Although unit is weatherproof, guard against water from higher
level runoff and overhangs. After unit is in position, remove
rigging skids and shipping materials.
POSITIONING ON CURB (50TC 16)
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 positioned as shown in Fig. 16. 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. 16 — Retrofit Installation Dimensions (Size 16)
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 12.5-in. (320 mm) towards the duct
end of the unit. (See Fig. 17.)
Although unit is weatherproof, guard against water from higher
level runoff and overhangs.
Fig. 17 — Alternative Condensate Drain Hole
Positions (Size 16)
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. 58-60. Recycle or dispose of all
shipping materials.
Step 7 — Convert to Horizontal and Connect
Ductwork (when required)
50TC 07-14 UNITS
Unit is shipped in the vertical duct configuration. Unit without fac-
tory-installed economizer or return-air smoke detector option may
be field-converted to horizontal ducted configuration. To convert
to horizontal configuration, remove screws from side duct opening
covers (see Fig. 18) and remove covers. Use the screws to install
the covers on vertical duct openings with the insulation-side
down. The panels must be inserted into the notches on the basepan
to properly seal. The notches are covered by the tape used to se-
cure the insulation to the basepan and are not easily seen. See
Fig. 19 for position of the notches in the basepan. Seals around
duct openings must be tight. Secure with screws as shown in
Fig. 20. Cover seams with foil duct tape.
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
All panels must be in place when rigging. Unit is not designed
for handling by fork truck when packaging is removed.
If using top crate as spreader bar, once unit is set, carefully
lower wooden crate off building roof top to ground. Ensure
that no people or obstructions are below prior to lowering
the crate.
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 section:
• Factory-Option Thru-Base Connections
NOTE: If electrical connections is 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.
Original
Position
New Position
(moved 12.5 in.)
Summary of Contents for WeatherMaker 50TC07 Series
Page 4: ...4 Fig 2 Dimensional Drawing for Units Built on and After 4 15 19 Size 07 ...
Page 5: ...5 Fig 3 Dimensional Drawing for Units Built Prior to 4 15 19 Size 07 ...
Page 6: ...6 Fig 4 Corner Weights and Clearances Size 07 ...
Page 7: ...7 Fig 5 Base Rail Details Size 07 ...
Page 8: ...8 Fig 6 Thru the Base Charts Size 07 ...
Page 9: ...9 Fig 7 Unit Dimensional Drawing Size 08 09 12 ...
Page 10: ...10 Fig 7 Unit Dimensional Drawing Size 08 09 12 cont ...
Page 11: ...11 Fig 8 Unit Dimensional Drawing Size 14 ...
Page 12: ...12 Fig 8 Unit Dimensional Drawing Size 14 cont ...
Page 13: ...13 Fig 9 Unit Dimensional Drawing Size 16 Unit ...
Page 14: ...14 Fig 9 Unit Dimensional Drawing Size 16 Unit cont ...
Page 19: ...19 Fig 14 Roof Curb Details Size 16 Unit ...
Page 26: ...26 Fig 34 50TC 07 Control Wiring Diagram ...
Page 27: ...27 Fig 35 50TC 07 Power Wiring Diagram ...
Page 28: ...28 Fig 36 50TC M08 12 Control Wiring Diagram ...
Page 29: ...29 Fig 37 50TC D E Wiring Diagram 08 14 Size Units ...
Page 30: ...30 Fig 38 Single Stage Cooling without VFD Power Wiring Diagram Sizes 08 12 ...
Page 31: ...31 Fig 39 2 Stage Cooling with VFD Power Wiring Diagram Sizes 08 12 ...
Page 32: ...32 Fig 40 2 Stage Cooling with VFD Power Wiring Diagram Size 14 ...
Page 33: ...33 Fig 41 50TC 16 Wiring Diagram ...
Page 34: ...34 Fig 42 2 Stage Cooling with VFD Power Wiring Diagram Size 16 ...
Page 35: ...35 Fig 43 50TC 07 Units Wiring Diagram with Humidi MiZer System Option ...
Page 36: ...36 Fig 44 50TC 08 14 Units Wiring Diagram with Humidi MiZer System Option ...
Page 37: ...37 Fig 45 50TC 16 Wiring Diagram with Humidi MiZer System Option ...
Page 69: ...69 Fig 97 Typical PremierLink Control Wiring Diagram Size 07 Shown ...
Page 70: ...70 Fig 98 50TC M08 12 PremierLink Control Wiring Diagram ...
Page 71: ...71 Fig 99 Typical PremierLink Control Wiring Diagram Dual Compressor Sizes 08 12 shown ...
Page 72: ...72 Fig 100 Typical PremierLink Control Wiring Diagram with Humidi MiZer System Option ...
Page 73: ...73 Fig 101 Typical RTU Open Controller Wiring Diagram 50TC 07 Units ...
Page 74: ...74 Fig 102 50TC M08 12 RTU Open Controller Wiring Diagram ...
Page 75: ...75 Fig 103 Typical RTU Open Controller Wiring Diagram 50TC D E08 14 Units ...
Page 76: ...76 Fig 104 RTU Open Controller Wiring Diagram 50TC 16 Unit ...
Page 83: ...83 Fig 113 UltraTech Scroll Compressor ...
Page 84: ......
Page 85: ......