Carrier 38QH - Manual (Page 3)

HEATING A COOLING
38QH
Heat Pumps — Outdoor Section
Table 2 — AccuRater™ Selection Charts
OUTDOOR INDOOR INDOOR OUTDOOR INDOOR INDOOR
UNIT 38QH UNIT PISTON UNIT 38Qh UNIT PISTON
28AC015 49‘ 28AC.AU042 80*
28AC.AU018 49’ 28AC242 80*
28HQ.VQ024 49* 28AC.AU048 82*
015 40AQ018 46 28AC248 82*
(35)t 40AQ024 49* 28AM048 82
40DQ014 46*
842
(73)t
28HQ.VQ042 76
40DQ018 46* 28HQ.VQ048 80*
40DQ024 49 28HQ.VQ060
28SL042
82*
76*
28AC.AU018 52*
28AC. au ,AM024
28HQ.VQ024
55*
52*
28SL060 82*
018
(42)t
28HQ.VQ030
40AQ018
40AQ024
55*
49*
52
40QB.QH048 82
28AC.AU048 84
40AQ030 55* 28AC248 84
40DQ018 49* 28AC.AU060 86*
40DQ024 52* 28AC260 86*
40DQ030 55* 28AM048 84*
024
(52)t
28AC,AU,AM024
28AC.AU030
28AM036
28HQ.VQ024
28HQ.VQ030
28HQ.VQ036
40AQ024
40AQ030
61*
63*
63*
59*
61*
63*
59*
61’
048
(73)t
28HQ.VQ048
28HQ.VQ060
28SL048
28SL060
40QB048
40QB.QH060
40QB.QH062
82*
84*
82
84*
84*
86*
86*
28AC.AU060 101*
40AQ036 63* 28AC260 101*
40DQ024 59 060331 28HQ.VQ060 98*
40DQ030 61* (78)t 28SL060 98*
28AC.AU030
28AC.AU036
28AC236
70*
73
40QB,QH060
40QB.QH062
101*
101*
73 28AC.AU060 93*
28AM036 70* 28AC260 93*
28HQ.VQ030 67* 060341 28HQ.VQ060 90*
030
(59)t
28HQ.VQ036 70* (78)t 28SL060 90*
28HQ.VQ042 73* 40QB.QH060 93
28SL030
28SL036 67*
70* 40QB.QH062 93
28SL042 73*
40AQ030 67*
40AQ036 70*
40DQ030 67*
28AC.AU036 73
28AC236 73
28AC.AU042 73’
28AC242 73*
28AM036 70*
036
(61 )t
28HQ.VQ036 70*
28HQ.VQ042 73*
28HQ.VQ048 73*
28SL036 70*
28SL042 73*
28SL048 73*
40AQ036 70*
40QB042 73’
'Replace factory-installed piston with this piston size
fRequired outdoor piston size
Step 4 — Make Electrical Connections — Be
sure field wiring complies with local and national fire,
safety and electrical codes, and voltage to system is within
limits shown in Table 3. Contact local power company
for correction of improper line voltage.
NOTE: Operation of unit on improper line voltage con­
stitutes abuse and could affect Carrier warranty. See
COMPATIBLE FITTING
Table 3. Do not install unit in system where voltage may
fluctuate above or below permissible limits.
See Table 3 for recommended fuse sizes. When making
electrical connections, provide clearance at unit for refrig­
erant piping connections.
INSTALL BRANCH CIRCUIT DISCONNECT PER
NEC of adequate size to handle unit starting current.
Locate disconnect within sight from and readily access­
ible from unit, per Section 440-14 of National Electrical
Code (NEC).
ROUTE LINE POWER LEADS — Extend leads from
disconnect through power wiring hole provided (see
Fig. 1) and into unit splice area. Remove control box
cover to gain access to unit wiring.
CONNECT GROUND LEAD AND POWER WIRING
— Connect ground lead to ground connection in control
box for safety. Then connect power wiring. See Fig. 4.
Splice line power leads to yellow and black pigtails. Use
wire nuts and tape at each connection. Connect unit
wiring to copper power wiring only.
CONNECT CONTROL POWER WIRING — Route
24-v control wires through control wiring hole and
channel and eonnect leads to control wiring terminal
board. See Fig. 1 and 5.
Use furnace or fan coil transformer as 24-v (40-va
minimum) supply for system as shown in Fig. 5, or use
accessory transformer (refer to Service data).
I-PHASE
CONN. TO
DISCONNECT
PER NEC
-------- GROUND LEAD- -IU grounding lug
_---------------------------------- — YEL
1- PHASE
UNIT
Fig. 3 — Compatible Fitting
^ Splice Connections
_________ Field Wiring
---------------- Factory Wiring
Fig. 4 — Line Power Connections
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations.
Book|1 14 PC101 Catalog No 533-808 Printed in U.S A Form38QH-2SI Pg 3 7-85 Replaces: 38QH-1 SI
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