Table 3 — accessories, Step 3 — make piping connections, Ve va – Carrier 38QF User Manual
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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.