Carrier 50HX024-060- User Manual

Carrier 50HX024-060

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Table of Contents:

  • Page 7 – Fig. 6 — Roof Curb Dimensions
  • Page 8 – Fig. 7 — Unit Leveling Tolerances; REAR SIDE OF UNIT
  • Page 9 – Step 4 — Rig and Place Unit —; Use spreader bars; NOTICE TO RIGGERS; CHART ‘‘A’’ — UNITS WITH OPTIONAL BASE RAIL
  • Page 10 – Table 1 — Physical Data; Step 5 — Select and Install Ductwork —; Fig. 11 — Area Not to Be Drilled
  • Page 11 – UNIT SIZE 50HX; Fig. 12 — Typical Installation
  • Page 14 – Fig. 22 — Filler Bracket and Blower Shelf; Fig. 23 — Housing Placed for Vertical Airflow
  • Page 15 – Fig. 25 — Drain Tubing Connections; Fig. 24 — Duct Flange Kit — Locating Holes
  • Page 16 – Table 3 — Electrical Data
  • Page 18 – NEC — National Electrical Code; Fig. 28 — Line Power Connections
  • Page 19 – Fig. 31 — 208/230-V Integrated Control Motor Wiring Schematic
  • Page 21 – Table 4A — Superheat Charging Table, 50HX024
  • Page 22 – Table 4B — Superheat Charging Table, 50HX030; Table 4C — Superheat Charging Table, 50HX036; Table 4D — Superheat Charging Table, 50HX042
  • Page 23 – Table 4E — Superheat Charging Table, 50HX048; Table 4F — Superheat Charging Table, 50HX060
  • Page 24 – SUPERHEAT; INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS
  • Page 25 – Fig. 32 — Easy Select Interface Board
  • Page 27 – Check Valves; LCS — Loss of Charge Switch; COOLING CYCLE; Fig. 33 — Typical Heat Pump Operation, Cooling Mode
  • Page 28 – HEATING CYCLE; Fig. 34 — Typical Heat Pump Operation, Heating Mode
  • Page 30 – Table 8 — Wet Coil Pressure Drop
  • Page 32 – Fig. 35 — Fan Blade Clearance
  • Page 33 – COOLING AND HEATING TROUBLESHOOTING CHART; SYMPTOM
  • Page 34 – COOLING AND HEATING TROUBLESHOOTING CHART (cont)
  • Page 36 – I. PRELIMINARY INFORMATION; ELECTRICAL
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Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . 1,2

General

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

RECEIVING AND INSTALLATION

. . . . . . . . . . . . . . . 2-19

Step 1 — Check Equipment

. . . . . . . . . . . . . . . . . . . . . 2

•

IDENTIFY UNIT

•

INSPECT SHIPMENT

Step 2 — Provide Unit Support

. . . . . . . . . . . . . . . . . . 2

•

ROOF CURB

•

SLAB MOUNT

Step 3 — Provide Clearances

. . . . . . . . . . . . . . . . . . . 2

Step 4 — Rig and Place Unit

. . . . . . . . . . . . . . . . . . . . 9

•

UNITS WITHOUT BASE RAILS

•

UNITS WITH OPTIONAL BASE RAILS

Step 5 — Select and Install Ductwork

. . . . . . . . . . . . 10

•

CONVERTING HORIZONTAL DISCHARGE UNITS TO
DOWNFLOW (Vertical) DISCHARGE — NON-ICM
(Integrated Control Motor) UNITS

•

CONVERTING HORIZONTAL DISCHARGE UNITS TO
DOWNFLOW (Vertical) DISCHARGE — ICM
(Integrated Control Motor) UNITS

•

ACCESSORY DUCT FLANGE KIT INSTALLATION

Step 6 — Provide for Condensate Disposal

. . . . . . . 15

Step 7 — Install Electrical Connections

. . . . . . . . . . 15

•

HIGH-VOLTAGE CONNECTIONS

•

ROUTING POWER LEADS INTO UNIT

•

CONNECTING GROUND LEAD TO GROUND LUG

•

ROUTING CONTROL POWER WIRES — NON-ICM
UNITS (24 v)

•

ROUTING CONTROL POWER WIRES — ICM UNITS
(24 v)

•

SPECIAL PROCEDURES FOR 208-V OPERATION

PRE-START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-30

Check for Refrigerant Leaks

. . . . . . . . . . . . . . . . . . . . 20

Unit Start-Up Adjustments

. . . . . . . . . . . . . . . . . . . . . 20

MAINTENANCE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31,32

Air Filter

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Unit Top Removal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Indoor Blower and Motor

. . . . . . . . . . . . . . . . . . . . . . 31

Outdoor Coil, Indoor Coil, and Condensate

Drain Pan

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Outdoor Fan

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Electrical Controls and Wiring

. . . . . . . . . . . . . . . . . . 32

Refrigerant Circuit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Indoor Airflow

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Metering Devices

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Liquid Line Strainers

. . . . . . . . . . . . . . . . . . . . . . . . . . 32

COOLING AND HEATING TROUBLESHOOTING
CHART

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33,34

START-UP CHECKLIST

. . . . . . . . . . . . . . . . . . . . . . . CL-1

NOTE TO INSTALLER — READ THESE INSTRUC-
TIONS CAREFULLY AND COMPLETELY before install-
ing this unit (Fig. 1). Also, make sure the Owner’s Manual
and Service Instructions are left with the unit after
installation.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment

can be hazardous due to system pressure and electrical com-
ponents. Only trained and qualified personnel should install,
repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance

functions of cleaning coils and filters. All other operations
should be performed by trained service personnel. When
working on air-conditioning equipment, observe precau-
tions in the literature, tags and labels attached to the unit,
and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves.

Use quenching cloth for unbrazing operations. Have fire ex-
tinguisher available for all brazing operations.

Improper installation, adjustment, alteration, service, main-
tenance, or use can cause explosion, fire, electric shock,
or other occurrences which may injure you or damage
your property. Consult a qualified installer or service
agency for information or assistance. The qualified in-
staller or agency must use only factory-authorized kits
or accessories when modifying this product.

Understand the signal words — DANGER, WARNING,

and CAUTION. Danger identifies the most serious hazards
which will result in severe personal injury or death. Warning
indicates a condition that could result in personal injury. Cau-
tion is used to identify unsafe practices which would result
in minor personal injury or product and property damage.

Fig. 1 — Model 50HX With Optional Base Rail Shown

50HX024-060

Single-Package Heat Pump Units

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1

4

Tab

5a 5a

PC 111

Catalog No. 565-056

Printed in U.S.A.

Form 50HX-3SI

Pg 1

4-97

Replaces: 50HX-2SI

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Summary

Page 7 - Fig. 6 — Roof Curb Dimensions

PART NUMBER ‘‘A’’ FLAT CPRFCURB001A00 8 9 [203] CPRFCURB002A00 11 9 [279] CPRFCURB003A00 14 9 [356] NOTES:1. Roof curb must be set up for unit being installed.2. Seal strip must be applied as required for unit being installed.3. Dimensions in [ ] are in millimeters.4. Roof curb is made of 16 gage st...

Page 8 - Fig. 7 — Unit Leveling Tolerances; REAR SIDE OF UNIT

MAXIMUM ALLOWABLE DIFFERENCE (in.) A-B B-C A-C 1 ⁄ 4 1 ⁄ 4 1 ⁄ 4 Fig. 7 — Unit Leveling Tolerances NOTES:1. Extend a 6-in. gravel apron around pad.2. Provide a 3-ft service clearance at front and rear sides of unit. Fig. 8 — Pad Dimensions NOTES:1. Material consists of angle iron — 31.8 mm (1 1 ⁄ 4 ...

Page 9 - Step 4 — Rig and Place Unit —; Use spreader bars; NOTICE TO RIGGERS; CHART ‘‘A’’ — UNITS WITH OPTIONAL BASE RAIL

Step 4 — Rig and Place Unit — Use spreader bars or crate top when rigging the unit. The units must be riggedfor lifting as shown in Fig. 10. Refer to Fig. 10 and Table 1for rigging weights and Fig. 2-5 for operating weights. Useextreme caution to prevent damage when moving the unit.Unit must remain ...

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