Carrier 38AD034 User Manual

Carrier
and Service Instructions
38AB.AD
024thro 084
Air-Cooled Condensing Units
Table 1 — Dimensions
UNIT
38AD 38AD
024 028
38AD
034
38AD
044
38AB
054
38AB
064
38AB
084
DIMENSIONS (Ft—in
i.)
Length
A
o
1
CO
12-10%
24- -4
24-4
Width
B
3-11%
4-10%
6- 0‘/ 4
3-11%
4-10%
6- 0%
Height w/o Legs
C
2- 4%
3- r/ 8
3- 2
2- 4%
3- r/ 8
3- 1%
Leg Height
D
1-0 or 2-0
1 —6 or 2—2
1- 8
1 -4 or 2-0
1-6 or 2-2
1 _8 or 2—
Mtg Holes
< J
O
1
sC
o
1
0- 1% 2—%
0- 1%«
0- 1%6
0- 1%
Corner Legs
Ik
3- 8% 3- 8%
4- 7%
5- 7%
00
1
CO
4- 7%
5- 9%
o
i
o
o
1
o
o
1
o
2-%
o
1
o
o
I
o
o
I
o
Middle Legs
Ik
3-10 1 3-10
00
1
xr
5- 7%
CO
1
o
CO
1
XT
5~ioy 2
L
3-3%
3- 7% 6
9-4%
M
9-4%
00
o
5-3%
N
|
1 -
-
9-5%
CONNECTIONS (in
.)
Suction (ODM)
l-%
2-%
2-V
Liquid (ODM)
%
7 /s
1 —%
OPENINGS (in.)
Suction
E
2-%
4
5
(2)5
Liquid
F
1- % I 1- %
1 i- %
2
2-%
3
7/
Control (4 holes)
G
%
1 — 5 4
1
k
Power
H
3-%
5
s-%
(2)3%
*Unit 38AB084 has two suction connections
AIR FLOW
GUSSET -pf
REMOVABLE , n o . HINGED CONTROL
TOP COVER BOX DOOR
\oNLY) 2 NI t Y) REQUIRED OVERHEAD
FL0W*\Ef/ F / E Al 5 ff ACE
38AD024
028, 034
A ^tt
w
i Ckii
mm
'4-0 (BOTH SIDES)
4-0 *.,
(BOTH SIDES)"
-REMOVABLE
END PANELS
HINGED ACCESS DOOR- REQUIRED OVERHEAD
CONTROL BOXi ~ AIR SPACE
AIR FLOW
GUSSET P"
A>
;_HINGED POWER
: BOX DOOR
‘ 4-0"(BOTH SIDES)
38AD044
4 1 - o"——
(BOTH SIDES)
REMOVABLE
END PANELS
AIR FLOW
BOTTOM PANELREMOVABLE REAR
OPENINGPANEL
f Px^Removable top requi
Ilf( COVER OVER!
FLOW AIR SI
HINGED AIR
control V
box covers
/^REMOVABLE TOP REQUIRED
/ COVER OVERHEAD
^^ • AIR FLOW AIR SPACE
38AB054,
064, 084
O' I? \i
4-0 X;
(BOTH SIDES)
'X 4 - 0 "
(BOTH SIDES)
AIR FLOW THRU
CONDENSER
11 SPACE FOR SERVICE
AND AIR FLOW
Certified dimension drawings are available on request
Fig. 1 — Dimensions
©Carrier Corporation 1972
Form 38AD-6SI

Carrier 38AD034 Specifications

General

Brand	Carrier
Model	38AD034
Category	Heat Pump
Language	English

Summary

Unit Rigging and Installation Setup

Rigging Procedures and Safety

Unit Erection and Integration

Refrigerant Piping and System Components

Refrigerant Piping Size Recommendations

Guidelines for selecting appropriate refrigerant line sizes.

Piping Procedures and Oxide Prevention

Expansion Valve and Suction Piping Details

Thermostatic Expansion Valve Installation

Suction Piping and Bulb Location Best Practices

Recommendations for suction piping and TXV bulb placement.

Electrical Specifications and Wiring

Unit Electrical Data Summary

Table detailing electrical specifications for various units.

Power Supply and Voltage Compliance

Power Wiring Installation Guidelines

Instructions for installing power wiring and disconnect switches.

Control Circuit Wiring Instructions

Unit Start-Up Procedures

Remote Control Wiring Diagrams

Pre-Start-Up Checklist

Essential checks before operating the unit.

Refrigerant Charging and Capacity Control

Refrigerant Charging Method

Steps for charging the refrigerant system.

Refrigerant Charging Data

Capacity Control Valve Adjustment

How to adjust cylinder unloaders for capacity control.

Physical Data and Time Guard Circuit Functions

Unit Physical Data Summary

Time Guard Circuit Operation

Explains the basic functions of the time guard circuit.

Control Circuit Protection and Winter Start

Control Circuit Reset Procedures

How to reset control circuits after a lockout.

Compressor Motor Overheating Protection

Details on motor temperature sensors and protection modules.

Winter Start Control Implementation