Carrier 48HJE007 User Manual

Copyright 1999 Carrier Corporation Form 48HJ-11PD
Carrier has designed the Weather-
master series based on customer
needs and requests to be the most
efficient and reliable rooftop unit ever
made.
Features/Benefits
• Most efficient rooftop line for
cooling using scroll compressor
technology
• Most efficient rooftop line for
heating using dimpled heat
exchangers on all units
• High reliability — non-corrosive
condensate pans, prepainted
cabinets and primed interior
panels, and all units are fully
protected by internal safeties
• Quietest operation — all
compressors mounted on
independent vibration isolators.
Standard, belt-driven evaporator
fan motors on all units
• Ease of maintenance achieved by
self diagnostics on the Integrated
Gas Controller (IGC), optional
direct digital controls, standard
size filters, tool-less filter access,
simple compressor access,
permanently lubricated fan
motors, optional disconnect
switch, optional 115-v
convenience outlet, and optional
hinged access panels
• Exclusive MoistureMiser
dehumidification package — a
result of recent advances by
Carrier in controlling comfort
levels. This factory-installed
option significantly improves the
dehumidification capability of the
rooftop unit and helps control
humidity levels in the building.
48HJD/HJE/HJF
Single-Package Rooftop Units
High-Efficiency Electric Cooling/
Gas Heating
3 to 12
1
/
2
Nominal Tons
Product
Data
48HJ004-007
48HJ008-014

Carrier 48HJE007 Specifications

General

Brand	Carrier
Model	48HJE007
Category	Heat Pump
Language	English

Summary

Product Data and Features

Features and Benefits Overview

Unit Features and Design

Ease of Maintenance and Installation

Describes features simplifying installation, conversion, and access.

Unit Features and Design (Continued)

Quiet, Efficient, and Dependable Operation

Highlights scroll compressors, fan design, and coil enhancements for performance.

Performance Specifications

Cooling Capacities (ARI Ratings)

Presents unit cooling performance data based on ARI standards.

Heating Capacities and Efficiencies

Details unit heating input, output, AFUE, and efficiency ratings.

Physical Data

Unit Dimensions and Component Sizes

Options and Accessories

Low Ambient Controls and Economizers

Base Unit Dimensions

48HJ004-007 Dimension Drawings

Base Unit Dimensions (Continued)

48HJ008-014 Dimension Drawings

Selection Procedure

Unit Selection Example and Steps

Guides users through selecting a unit based on load and conditions.

Performance Data

Cooling Capacities (Standard Units)

Tables detailing cooling capacity (TC, SHC) at various conditions.

Performance Data (Continued)

Fan Performance (Vertical Discharge)

Fan Performance (Horizontal Discharge)

Performance Data (Continued)

Evaporator-Fan Motor Specifications

Electrical Data

Standard Motor Units (Without Convenience Outlet)

Electrical specifications for standard motor units without a convenience outlet.

Electrical Data (Continued)

Standard Motor Units (With Convenience Outlet)

Electrical specifications for standard motor units with a convenience outlet.

High-Static Motor Units (Without Convenience Outlet)

Electrical specs for high-static motor units without a convenience outlet.

High-Static Motor Units (With Convenience Outlet)

Electrical specs for high-static motor units with a convenience outlet.

Typical Piping and Wiring

MoistureMiser Refrigerant Circuit Diagram

Typical Piping and Wiring (Continued)

Unit Airflow Path Diagrams

Controls

Operating Sequences: 48HJ004-007 Units

Explains the unit's operational sequences for cooling and heating modes.

Controls (Continued)

Operating Sequences: 48HJ008-014 Units

Details operational sequences for cooling, heating, and MoistureMiser for larger units.

MoistureMiser Dehumidification Control Logic

Controls (Continued)

Advanced Control Systems: TEMP & VVT

Application Data (Continued)

MoistureMiser Dehumidification Benefits

Typical Wiring Schematic

48HJ008-014 Wiring Diagram Example

Guide Specifications

Part 1 - General System Description

Guide Specifications (Continued)

Part 2 - Equipment: Heating, Coils, Motors, Controls

Part 2 - Equipment: Economizers, Dampers, and Controls