Table Of Contents; Features And Benefits; Durable, Dependable Construction; Easy Installation And Conversion - Carrier 50HJQ004-016 Product Data

TABLE OF CONTENTS

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Number Nomenclature
ARI Capacity Ratings
Options And Accessories
50TFQ
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . .
Accessory Dimensions
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Wiring Schematics
Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . .
50HJQ
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . .
Accessory Dimensions
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Wiring Schematics
Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guide Specifications . . . . . . . . . . . . . . . . . . . . .
50HEQ
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Dimensions
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Data . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Wiring Schematics
Guide Specifications . . . . . . . . . . . . . . . . . . . .
Accessory Performance Data ---All Models 173-175
Typical Piping and Wiring ---All Models
Controls
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Data . . . . . . . . . . . . . . . . . . . . . . .
Unit sizes 008-016 offer lower utility costs through part-load
operation using 2 stages of cooling.
Quiet and efficient operation is provided by belt-driven indoor
fans (standard on all units over 5 tons). The belt-driven indoor
fan is equipped with variable-pitch pulleys which allow
adjustment within the rpm ranges of the factory-supplied pulleys.
Increased operating efficiency
computer-designed coils featuring staggered internally enhanced
1---4
. . . . . . . . . . . . . . . 4---6
. . . . . . . . . . . . . . . . . . . . . . 7---9
. . . . . . . . . . . . . . . . . . 10-16
18
19,20
. . . . . . . . . . . . . . . . . . . . . 21,22
23
24-56
57-66
. . . . . . . . . . . . . . . . . . . . . . 67
68
69-72
73-75
76-78
. . . . . . . . . . . . . . . . . . . . . 79-83
84
85-122
123-130
. . . . . . . . . . . . . . . . . 131-132
133
134-142
143
144
. . . . . . . . . . . . . . . . . . . . . . . 145
84
146-162
163-166
. . . . . . . . . . . . . . . . . . . . . 167
168---172
. . . . 176-180
181-187
187-191
is achieved through
copper tubes. Fins are ripple-edged for strength, lanced, and
double waved for higher heat transfer.

Durable, dependable construction

Designed for durability in any climate, the weather-resistant
cabinets are constructed of galvanized steel and bonderized, and
all exterior panels are coated with a prepainted baked enamel
finish. The paint finish is non-chalking, and is capable of
withstanding ASTM (American Society for Testing and
Materials) B117 500-hour Salt Spray Test. All internal cabinet
panels are primed, permitting longer life and a more attractive
appearance for the entire unit.
In addition, all size 004-012 units are designed with a single,
continuous top piece to eliminate any possible leaks. Totally
enclosed outdoor-fan motors and permanently lubricated bearings
provide additional unit dependability.
Patented state-of-the-art Chronotemp™ defrost system uses
time and temperature to keep the outdoor coil frost-free for
economical, dependable operation. The Chronotemp defrost
board can be easily configured for defrost cycles every 30, 50, or
90 minutes.
Dependable 4-way valve operation safely and efficiently
accomplishes cycle reversals, defrost, and normal operation.

Easy installation and conversion

All units are shipped in the vertical duct configuration for fit-up
to standard roof curbs. (3 different curb sizes fit unit sizes
003-007, 008-012, and 014,016 respectively.) The contractor can
order and install the roof curb early in the construction stage,
before decisions on size requirements are made.
All units feature a base rail design with forklift slots and rigging
holes for easier maneuvering. Durable packaging protects all
units during shipment and storage.
The units can be easily converted from a vertical to a horizontal
duct configuration by relocating the panels supplied with the unit.
To convert 003-012 units from vertical to horizontal discharge,
simply relocate 2 panels. The same basic unit can be used for a
variety of applications and can be quickly modified at the jobsite.
To convert size 014 and 016 units from vertical to horizontal
discharge, use the optional horizontal supply/return adapter roof
curb.
Convenient duct openings in the unit basepans permit
side-by-side or concentric duct connections (see Application Data
section) without requiring internal unit modification (size 014,
016 only).
NOTE: On units using horizontal supply and return, the
accessory barometric relief or power exhaust MUST be installed
on the return ductwork.
Thru-the-bottom service connection capability comes standard
with the rooftop unit to allow power and control wiring to be
routed through the unit's basepan, thereby minimizing roof
penetrations (to prevent water leaks). Power and control
connections are made on the same side of the unit to simplify
installation.
The non-corrosive sloped condensate drain pan permits either
an external horizontal side condensate drain (outside the roof
curb) or an internal vertical bottom drain (inside the roof curb).
Both options require an external, field-supplied P-trap.
Standard 2-in. throwaway filters are easily accessed through a
removable panel located above the air intake hood. No tools are
required to change unit filters.
All 003-012 units are designed with a single, continuous top
piece to eliminate leaking at the seams or gasketing.
Belt-driven indoor-fan motors allow maximum on-site
flexibility without changing motors or drives.
Field-installed accessory electric heaters are available in a wide
range of capacities. An available single-point wiring kit makes
installation simple.
2