Carrier 38QF - Manual (Page 3)

ON THE ROOF; MOUNT UNIT ON A LEVEL
PLATFORM OR FRAME: Proper precaution
must be taken for support of unit in roof design.
Elevate unit for proper clearance as described under
ground installation above. Plan roof design and
water drainage to prevent unit from setting in water.
Flash all roof openings to prevent leaks.
Roof mounted unit exposed to winds above 5 mph
may require protective wind baffles (field fabricated)
to achieve adequate defrost.
Step 3 — Make Piping Connections — Heat
pumps may be connected to indoor sections using
Carrier accessory tubing package (Table 3) or field-
supplied tubing of refrigerant grade, correct size and
condition (Table 2). For requirements beyond
50 ft obtain information from local Carrier
distributor.
Table 2 — Installation Data (Fig. 1)
UNIT 38QF 018 024 030 036 042 048 060
OPER WT(lb) 160 163 181 189 209 265 298
DIMEN (ft-in.)
DIam (A)
Height (B)
Mtg Pad
(Diam X Thick)*
(C)
(D)
2-
53/32
2-2'V32 j
2
-
8
Y
32
[3-13/4
2-6 X 0-6
1-1
1-10/2
3-23/33
2-83/61 3-2’/e
3-3 X 0-6
1 -5%
2-7
REFRIG CONN (in.)
Suction (ODF)
Liquid (ODF)
34
3/s
REFRIG LINES (in.)
Suction (ODF)
Liquid (ODF)
% 1 1 Vaf
3/8
“■Mounting pad is fieid suppiied,
fMay use Vs-'m. accessory tubing package (slight capacity loss). See Tabie 3.
-> Table 3 — Accessories
PART NO. DESCRIPTION MODEL 38QF
99TZ90040106
99TZ90041106
Low-Voltage Control — Honeywell Thermostat HH07AT171 and Thermostat
Subbase HH93AZ173 — Automatic Changeover (Six 99TZ900401)
Low-Voltage Control —
Subbase HH93AZ175 ■
Honeywell Thermostat HH07AT171 and Thermostat
Manual Changeover (Six 99TZ900411)
All
38QB90002106 Service Sentry — Standard on 38QF060 (Six HN65CT004)
Twelve M x IVs-in. connection adapters
018-048
28VQ900011 030-060
38RQ90008106
HN61KL704
380890004106
38CQ900172
38RQ90009106
Bi-Flow Heat Pump Filter Drier — Ref KH45LD077 (Six 38RQ900081)
Supplemental Heat Relay ■
(Six 38RQ900001) ■ Required with 2 outdoor thermostats.
Outdoor Thermostat (Six 38QB900041)
Optimizer Control Outdoor Thermostat — Ref HH22AG110 (Six 38CQ900161)
Optimizer II Control Assembly — Use with HH22AG110 outdoor thermostat.
(Six 38RQ900091)
All
38QB90001106 Heat Pump Rack (Six) 018-042
38QF90000106
38QB90003106
Heat Pump Rack (Six)
Solid-State Time Guard
I
24 volt (Six 38QB900031)
048,060
38QF90001106t Liquid Line Solenoid (Six 38QF900011) All
HC95DE088* Start Capacitor 018
HC95DD121* Start Capacitor 024
HC95DD121“ Start Capacitor 030
HC95DE070* Start Capacitor 036,042
HN61KA054* Start Relay 018
HN61HB515* Start Relay 024
HN61HB510* Start Relay 030
HN61HB505* Start Relay 036
HN61HB504* Start Relay 042
38EB660002* Wire Bundle for Start Capacitor and Relay All
TUBING
PACKAGE
LENGTH
(ft)
TUBING
Liquid
OD
(in.)
Tube End OD
(in.
Suction^
OD
(in.)
Tube End OD
Evap
(in.)
Cond
(in.)
MODEL
38QF
38LS978151
38LS978201
38LS978251
38LS978301
38LS978351
38LS978401
38LS978501
15
20
25
30
35
40
50
Ve
Va
%
Ye
Ys
Ya
Ya
Ya
Ya
Ya
Ya
Ya
Ya
Ya**
Ya**
Ya**
Ya**
Ya**
Ya**
Ya** %
3/4
3/4
34
3/4
3/4
Y a
Y a
3/4
3/4
Y a
Y a
3/4
3/4
All
■“Available thru Carrier Service Parts.
fStart capacitor and relay are required when using liquid line solenoid valve.
{Suction line is insulated and has 90° bend.
“■“Capacity reduction may occur when %-in. accessory tubing is used on 38QF042.