Carrier 38AQS008 User Manual

Copyright 1999 Carrier Corporation Form 38AQS-4PD
Heat Pump
Heat Pump Systems that Save
Energy and Provide Outstanding
Heating and Cooling All Year
• All-season comfort in any climate
• High energy savings capability
• Suitable for new construction or
replacement
Features/Benefits
System indoor and outdoor
sections offer outstanding
performance in either the
cooling or heating mode
Heat pump system energy
savings opportunity
Electrical energy consumption is
always a prime concern when selecting
an air-conditioning system for a com-
mercial application. An easy, effective
way to save energy is to install a heat
pump. Should your building plans call
for one, consider a matched Carrier
38AQS/40RMQ heat pump system.
These systems not only provide highly
efficient cooling, they also double as a
clean, safe, efficient source of heat. In
fact, they are capable of delivering
approximately 3 units of heat energy
for each unit of electrical power
consumed.
Heat pump uniqueness
The outstanding performance of these
heat pump systems is due to the heat
pump’s ability to absorb and transfer
heat — from outdoors to indoors for
heating, and from indoors to outdoors
for cooling. System indoor and out-
door sections operate as evaporators
or condensers, depending on whether
heating or cooling is required. The
heating cycle always starts with the
outdoor coil absorbing heat from the
38AQS/40RMQ
Heat Pump Systems
Nominal Heating: 83,000 to 164,000 Btuh
Nominal Cooling: 7
1
/
2
to 15 Tons
Product
Data
38AQS008
38AQS012,016
40RMQ

Carrier 38AQS008 Specifications

General

Model	38AQS008
Type	Heat Pump
HSPF Rating	Up to 10
Refrigerant	R-410A
Voltage	208/230V
Phase	1

Summary

Features/Benefits

Heat pump system energy savings opportunity

Explains how heat pumps offer energy savings opportunities.

Heat pump uniqueness

Variable refrigeration circuiting (VRC) — 38AQS units

VRC provides improved heat transfer and three key benefits.

Innovative Carrier 40RMQ Indoor Units

Custom Matching for Superior System Performance

Model Number Nomenclature

38AQS Model Number Breakdown

40RMQ Model Number Breakdown

ARI* Capacities

Cooling Capacities

Presents cooling capacities based on ARI standards.

Heating Capacities

Presents heating capacities based on ARI standards.

Options and Accessories

Dimensions — Outdoor Units

Dimension Chart and Service Valve Connections

Dimensions — Indoor Units

Indoor Unit Dimensions and Weights

Selection Procedure (with example)

Determine cooling and heating load requirements

Steps to determine cooling and heating load requirements for system selection.

Select system that satisfies requirements

Process for selecting a heat pump system based on cooling load.

Determine the heating capacity of selected system

Method to determine heating capacity and supplemental heat needs.

Determine fan rpm and bhp (brake horsepower)

Determine motor and drive

Performance Data

Nominal Capacities

Lists nominal cooling and heating capacities for system combinations.

Integrated Heating Capacities

Presents integrated heating capacities at various outdoor temperatures.

Combination Ratings

Gross Capacities - Cooling

Displays gross cooling capacities for various operating conditions.

Combination Ratings (cont) - Net Capacities Heating

Shows net heating capacities for various operating conditions.

Indoor Unit Fan Performance Data 0.0-1.2 ESP

Fan Performance Data (0.0-1.2 ESP)

Typical Piping and Wiring

38AQS008 and 40RMQ008 Piping and Wiring

Illustrates typical piping and wiring for the 38AQS008/40RMQ008 system.

38AQS012,016 and 40RMQ012,016 Piping and Wiring

Illustrates typical piping and wiring for the 38AQS012,016/40RMQ012,016 system.

Electrical Data

Outdoor Unit Electrical Data

Provides electrical data including voltage, amps, and protection for outdoor units.

Indoor Unit Standard Motor Electrical Data

Indoor Unit Alternate Motor Electrical Data

Electric Heater Data - Indoor Units

Controls

Sequence of operation — 38AQS008 outdoor unit

Describes the cooling, heating, and defrost sequences for the 38AQS008/40RMQ008.

Sequence of operation — 38AQS012,016 outdoor unit

Explains cooling, heating, defrost, and emergency heat cycles for 38AQS012,016/40RMQ012,016.

Typical Control Wiring Schematic

38AQS008 Control Wiring Schematic

Shows the typical control wiring schematic for the 38AQS008 unit.

38AQS012,016 Control Wiring Schematic

Illustrates the control wiring schematic for the 38AQS012,016 unit.

Standard Drive Data — Indoor Units

Standard Drive Data

Guide Specifications — 38AQS008 Outdoor Unit

Guide Specifications — 38AQS008 Outdoor Unit (cont)

Guide Specifications — 38AQS012,016 Outdoor Units

Guide Specifications — 38AQS012,016 Outdoor Units (cont)

Controls and Safeties

Special Features

Guide Specifications — Indoor Units

Part 1 - General

Outlines general requirements for the indoor units.

Part 2 - Products

Details the equipment specifications for the indoor units.