Table 3 — accessories – Carrier 38EC User Manual
Page 3
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Table 3 — Accessories
PART NO
DESCRIPTION
MODEL
38EC
HH01AD040
HH93AZ040
Low-Voltage Control Honeywell Deluxe Thermostat
Thermostat Subbase
HH07AT170
&
HH07AT174
HH93AZ176
Low-Voltage Control
Honeywell Thermostat
Thermostat Subbase
HH01AD042
HH93AZ042
Low-Voltage
Control
Honeywell
Thermostat
Thermostat Subbase
All
HH01YA192
HH93YZ194
Low-Voltage
Control
Grayson
Thermostat
Thermostat Subbase
38GS900102
Indoor Fan Relay (Six HN61KJ210)
38GS900212
Low-Voltage Transformer (Six 38GS900091)
28VQ900011
Twelve 3/4- x 1-1/8 in Connection Adapters
048, 060
09WQ036.060
Refrigerant-to-Water Heat Exchanger for Chilled Water Systems
All
TUBING
PACKAGES
TUBING
*
MODEL
38EC
Length
(ft)
Liquid
Suctionf
OD
(in.)
Tube End
OD (in.)
OD
(in )
Tube End
OD (in.)
Evap
Cond
38LS958151
15
3/8
3/8
5/8
3/4t
5/8
38LS958201
20
3/8
3/8
5/8
3/4t
5/8
38LS958251
25
3/8
3/8
5/8
3/4t
5/8
38LS958301
30
5/16
3/8
5/8
3/4t
5/8
018, 024
38LS958351
35
5/16
3/8
5/8
3/4t
5/8
38LS958401
40
5/16
3/8
5/8
3/4t
5/8
38LS958501
50
1/4
3/8
5/8
3/4t
5/8
38LS934151
15
3/8
3/8
3/4
3/4
3/4
38LS934201
20
3/8
3/8
3/4
3/4
3/4
38LS934251
25
3/8
3/8
3/4
3/4
3/4
38LS934301
30
3/8
3/8
3/4
3/4
3/4
030, 036
38LS934351
35
3/8
3/8
3/4
3/4
3/4
38LS934401
40
3/8
3/8
3/4
3/4
3/4
38LS934501
50
3/8
3/8
3/4
3/4
3/4
38LS978151
15
3/8
3/8
7/8
3/4
3/4
38LS978201
20
3/8
3/8
7/8
3/4
3/4
38LS978251
25
3/8
3/8
7/8
3/4
3/4
38LS978301
30
3/8
3/8
7/8
3/4
3/4
38LS978351
35
3/8
3/8
7/8
3/4
3/4
38LS978401
40
3/8
3/8
7/8
3/4
3/4
38LS978501
50
3/8
3/8
7/8
3/4
3/4
‘For maximum capacities, use suction line sizes recommended in
Table 1 Use of accessory tubing packages smaller than recom
mended may result in slight capacity loss (see Note 2)
tSuction line is insulated and has a 90 degree bend at one end
JFor 5/8-in evaporator connection, cut off 3/4-in end
NOTES
1
Do not cut 3/8-in OD liquid lines to a length shorter than 10
feet Do not cut 5/1 6-or 1/4-in liquid line Do not cut 7/8-in
OD suction lines
2
Field-supplied
1-1/8
in
suction
line
is
recommended
on
38EC048 and 060 If accessory tubing package is used, a
capacity reduction can result
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Isolate interconnecting tubing from framing and
ductwork or where tubing runs thru stud spaces, en
closed ceilings or pipe chases. Use isolation type
hanger (Fig. 3) since rigid fastening transmits pulsa
tions to structure, creating objectionable sound.
For maximum capacity on 38EC048 and 060 sys
tems use 1-1/8 in. suction line. A capacity reduction
results if Carrier accessory tubing is used on these
systems. (Example: When a 25-ft accessory tubing
package is used on a 38EC048 system, the smaller
suction line results in a 3% capacity reduction.)
Length of interconnecting tubing may necessitate
refrigerant charge adjustment. Follow special re
quirements
described
in
Start-Up,
Refrigerant
Charging, page 6. Do not use less than 10 ft of inter
connecting tubing. On Carrier accessory tubing
packages, do not cut 5/ 16-in. or 1/4-in. liquid line or
7/8-in. suction line. These tubing packages have
swaged ends that, if cut, will not fit into refrigerant
line fittings. Bend or coil excess tubing to fit.
Do not use damaged, undersized or contaminated
tubing. Always evacuate or purge evaporator coil
and tubing system. When purging, use field-supplied
refrigerant, not unit holding charge refrigerant.