Carrier 48HJE008 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 48HJE008 Specifications

General

HSPF Rating	Up to 9.0
Voltage	208/230V
Phase	1
Coefficient of Performance (COP)	Up to 3.8
Refrigerant Type	R410A

Summary

Features/Benefits

Features/Benefits (cont)

Easy maintenance and installation

Quiet, efficient operation and dependable performance

Discusses scroll compressors, fan motors, bearings, and coil enhancements for quiet, reliable operation.

Serviceability

Model number nomenclature

Explains the coding system used for model numbers, including options and configurations.

Carrier controls add reliability, efficiency, and simplification

Highlights Apollo controls, IGC, and Cycle-LOC for enhanced system management and protection.

ARI* capacities

HEATING CAPACITIES AND EFFICIENCIES

Physical data

Physical data (cont)

Base unit dimensions — 48HJ004-007

Base unit dimensions - 48HJ008-014

Selection procedure (with 48HJ006 example)

Performance data

COOLING CAPACITIES, STANDARD UNITS

Tabulated cooling performance data for 48HJ004 and 48HJ005 units.

Performance data (cont)

COOLING CAPACITIES, STANDARD UNITS (cont)

Details cooling performance data for 48HJ012 and 48HJ014 units.

COOLING CAPACITIES, UNITS WITH MOISTUREMISER OPTION

Tabulated cooling performance data for 48HJ004 and 48HJ005 units with the MoistureMiser option.

COOLING CAPACITIES, UNITS WITH MOISTUREMISER OPTION (cont)

Details cooling performance data for 48HJ012 and 48HJ014 units with the MoistureMiser option.

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS

Fan performance curves for 48HJ004 (3 Tons) standard motor, vertical discharge.

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

Fan performance curves for 48HJ009 (8.5 Tons) standard and high-static motors, vertical discharge.

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS

Fan performance curves for 48HJ004 (3 Tons) standard motor, horizontal discharge.

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

Fan performance curves for 48HJ007 (6 Tons) standard and high-static motors, horizontal discharge.

FAN RPM AT MOTOR PULLEY SETTING

EVAPORATOR-FAN MOTOR DATA — STANDARD MOTOR

EVAPORATOR-FAN MOTOR DATA — HIGH-STATIC MOTOR

Electrical data

STANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET

Electrical data for standard motor units, detailing circuit breaker and disconnect sizes.

Electrical data (cont)

STANDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET

Electrical data for standard motor units with convenience outlets, showing voltage and amp draw.

HIGH-STATIC MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET

Electrical data for high-static motor units, detailing circuit breaker and disconnect sizes.

HIGH-STATIC MOTOR UNITS WITH ELECTRICAL CONVENIENCE OUTLET

Controls

Operating sequence for 48HJ004-007 units

Details cooling and heating control sequences for 48HJ004-007 units with different economizer configurations.

Controls (cont)

Operating sequence for 48HJ008-014 units

Explains control sequences for 48HJ008-014 units, covering cooling with various economizers and heating.

Operating sequence Units with Moisture Miser dehumidification package

Details the operation of the MoistureMiser package, including its control via a humidistat.

TEMP systems

Variable Volume/Variable Temperature VVT® systems

Guide specifications

Part 1 - General

Part 2 - Products

Guide specifications (cont)

M. Special Features:

3. Integrated Economizers:

20. MoistureMiser Dehumidification Package:

27. Energy$Recycler:

32. Indoor Air Quality (CO2) Sensor: