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13
Fig. 10 — Horizontal Duct Panels In Place
Step 8 — Install Outside Air Hood
ECONOMIZER HOOD REMOVAL AND SETUP
(FACTORY OPTION)
The hood is shipped in knock-down form and located in the re-
turn air compartment. It is attached to the economizer using
two plastic tie-wraps.
1. To gain access to the hood, remove the filter access panel.
(See Fig. 11.)
2. Locate and cut the (2) plastic tie-wraps, being careful not
to damage any wiring. (See Fig. 12.)
3. Carefully lift the hood assembly through the filter access
opening and assemble per the steps outlined in Econo-
mizer Hood and Two–Position Hood Assembly on
page 14.
Fig. 11 — Typical Access Panel Locations
Fig. 12 — Economizer Wiring
TWO-POSITION DAMPER HOOD REMOVAL AND
SETUP (FACTORY OPTION)
The hood is shipped in knock-down form and assembled to a
metal support tray using plastic stretch wrap. Located in the re-
turn air compartment, the assembly’s metal tray is attached to
the basepan and also attached to the damper using two plastic
tie-wraps.
1. To gain access to the hood, remove the filter access panel.
(See Fig. 11.)
2. Locate the (2) screws holding the metal tray to the basepan
and remove. Locate and cut the (2) plastic tie-wraps secur-
ing the assembly to the damper. (See Fig. 13.) Be careful
not to damage any wiring or cut tie-wraps securing any
wiring.
3. Carefully lift the hood assembly (with metal tray) through
the filter access opening and assemble per the steps out-
lined in Economizer Hood and Two–Position Hood
Assembly on page 14.
Fig. 13 — Damper Assembly
SCREWS
DUCT COVERS
SHEET METAL
FACE UP
BASEPAN
FILTER ACCESS PANEL
OUTDOOR-AIR OPENING AND
INDOOR COIL ACCESS PANEL
COMPRESSOR
ACCESS PANEL
ECONOMIZER
CUT PLA
S
TIC TIE
S
(2) PLACE
S
REMOVE HOOD PART
S
HOOD PARTS
PLASTIC TIE WRAP
QTY (2)
SCREWS FOR
METAL TRAY
QTY (2)
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: ......