Carrier 50HQ User Manual
Page 2
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f. 50HQ units include a susjjension package for
ceiling installation. T^'atwliOT'ha'nging brackets,
install 4 bolts (5/16 - 18-3/8 in. Ig) thru bracket
into the 4 weld nuts located on bottom of unit.
Insert the threaded rod thru rubber grommet
located in hanging bracket and attach with flat
washer and double nut. See Fig. 3.
Step 2 — Connect Supply Ductwork — Supply
air duct flange is shipped inside unit. Remove flange
from shipping location and install on unit supply
air opening. Connect supply air ductwork to unit
supply air duct connection flange. Refer to Fig. 1
and 2 and Table 1 and 2 for connection size and
location. If necessary, refer to Carrier System
Design Manual, Part 2, for system air duct design.
a.
b.
c.
When designing and installing ductwork, consider
the following:
Size duct for 350 to 450 cfm per ton of cooling
capacity.
Avoid abrupt duct size increases and reductions.
Use flexible connectors between ductwork and
unit to prevent transmission of vibration.
Ducts passing thru an unconditioned space must
be insulated and covered with vapor barrier in
accordance with the latest issue of SMACNA
(Sheet Metal and Air Conditioning Contractor’s
National Association) and NESCA (National
Environmental Systems Contractor’s Associa
tion) minimum installation standards for resi
dential heating and air conditioning systems.
Table 1 — Installation Data — 50VQ (See Fig. 1.)
MODEL 50VQ
014
018
022
027
033
042
048
060
OPER WT (lb)
220
240
260
270
. ,„290 ^
320
—
—
DIMENSIONS (ft-in.)
A
1 -10-1 /8 (Includes Filter Section)
2- 0
B
1-9 -1/8
1-10
C
3- 2-5/16
3- 2-5/16
3- 2-5/16
3- 2-5/16
3- 2-5/16
3- 2-5/16
4- 0
D
0- 1-1/2
0- 1-1/2
0- 1-1/2
0- 1-1/2
0- 1-1/2
0-3
—
E
0- 1-5/8
0- 1-5/8
0- 7-5/8
0- 7-5/8 1 0- 7-5/8
0- 5-7/8
—
SUPPLY DUCT CONN.
(ft-in.) F
0-11-1/4
0-11-1/4
0-11-1/4
0-11-1/4
0-11-1/4
0-10-1/4
—
—
G
0-10-1/4
0-10-1/4
0-11-7/8
0-11-7/8
0-11-7/8
1- 1-5/8
1-0-7/16 1-1-1/16
FILTER (1)
Disposable , 1 -in thick
—
Size (in.)
16 X 20
16 X 20
16 X 20
20 X 20
20 X 20
20 X 20
—
080
0-11-15/16