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14
ECONOMIZER AND TWO-POSITION HOOD
ASSEMBLY
NOTE: If the power exhaust accessory is to be installed on the
unit, the hood shipped with the unit will not be used and must be
discarded. Save the aluminum filter for use in the power exhaust
hood assembly.
1. The indoor coil access panel will be used as the top of the
hood. Remove the screws along the sides and bottom of
the indoor coil access panel. See Fig. 14.
Fig. 14 — Indoor Coil Access Panel Relocation
2. Swing out indoor coil access panel and insert the hood
sides under the panel (hood top). Use the screws provided
to attach the hood sides to the hood top. Use screws pro-
vided to attach the hood sides to the unit. See Fig. 15.
Fig. 15 — Economizer Hood Construction
3. Remove the shipping tape holding the economizer baro-
metric relief damper in place (economizer only).
4. Insert the hood divider between the hood sides. See
Fig. 15 and 16. Secure hood divider with 2 screws on each
hood side. The hood divider is also used as the bottom fil-
ter rack for the aluminum filter.
5. Open the filter clips which are located underneath the
hood top. Insert the aluminum filter into the bottom filter
rack (hood divider). Push the filter into position past the
open filter clips. Close the filter clips to lock the filter into
place. See Fig. 16.
6. Caulk the ends of the joint between the unit top panel and
the hood top.
7. Replace the filter access panel.
Fig. 16 — Economizer Filter Installation
Step 9 — Units with Hinged Panels Only
Relocate latch shipped inside the compressor compartment be-
hind the hinged compressor door to location shown in Fig. 17
after unit installation.
If the unit does not have hinged panels, skip this step and con-
tinue at Step 10 below.
Fig. 17 — Compressor Door Latch Location
Step 10 — Install External Condensate Trap and
Line
The unit has one
3
/
4
-in. condensate drain connection on the end
of the condensate pan and an alternate connection on the bot-
tom. See Fig. 18. Unit airflow configuration does not deter-
mine which drain connection to use. Either drain connection
can be used with vertical or horizontal applications.
When using the standard side drain connection, ensure that the
red plug in the alternate bottom connection is tight. Do this be-
fore setting the unit in place. The red drain pan plug can be
tightened with a
1
/
2
-in. square socket drive extension.
To use the alternate bottom drain connection, remove the red
drain plug from the bottom connection (use a
1
/
2
-in. square sock-
et drive extension) and install it in the side drain connection.
The piping for the condensate drain and external trap can be
completed after the unit is in place. See Fig. 19.
TOP
PANEL
INDOOR
COIL
ACCESS
PANEL
INDOOR
COIL
ACCESS
PANEL
CAULK
HERE
TOP
PANEL
B
TOP
PANEL
INDOOR COIL
ACCESS PANEL
19 1/16”
SCREW
HOOD DIVIDER
LEFT
HOOD
SIDE
33 3/8”
(848mm)
(483mm)
DIVIDER
BAROMETRIC
RELIEF
CLEANABLE
ALUMINUM
FILTER
FILTER
HOOD
FILTER
CLIP
OUTSIDE
AIR
Summary of Contents for 50HCQD07
Page 4: ...4 Fig 2 Unit Dimensional Drawing 07 08 Size Units ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing 07 08 Size Units cont ...
Page 6: ...6 Fig 3 Unit Dimensional Drawing 09 Size Units ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing 09 Size Units cont ...
Page 24: ...24 Fig 37 Electro Mechanical Control Wiring 50HCQ A07 D07 208 230v 460v 575v ...
Page 25: ...25 Fig 38 Electro Mechanical Control Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...
Page 26: ...26 Fig 39 Electro Mechanical Control Wiring 50HCQ 08 09 208 230v 460v 575v ...
Page 27: ...27 Fig 40 Electro Mechanical Power Wiring 50HCQ A07 D07 208 230v 460v 575v ...
Page 28: ...28 Fig 41 Electro Mechanical Power Wiring 50HCQ D07 Tier 2 1 Compressor 208 230v 460v 575v ...
Page 29: ...29 Fig 42 Electro Mechanical Power Wiring 50HCQ 08 09 208 230v 460v 575v ...
Page 30: ...30 Fig 43 PremierLink Wiring Schematic 50HCQ07 09 208 230v 460v 575v ...
Page 31: ...31 Fig 44 RTU Open System Control Wiring ...
Page 49: ......