Carrier 38YCC User Manual

Copyright 1997 Carrier Corporation Form 38YCC-C1PD
Product
Data
38YCC 50 Hz
Heat Pump
Sizes 024 thru 060
The 38YCC 50 Hertz Outdoor
Sections of Split-System Heat Pumps
are designed for quiet, reliable heating
during the winter and cooling during
the summer. With an EER up to 9.2,
these heat pump systems provide
economy of operation through energy
conservation when used with
components designated by Carrier.
They recover heat for indoor comfort
from outdoor air during the heating
season and, by automatically
reversing the refrigerant system,
remove indoor heat and excess
humidity during the cooling season.
FEATURES/BENEFITS
Electrical Range — Units are offered
in single phase 230v 50 Hz. Three-
phase units are available in sizes 036,
048, and 060 in 400v 50 Hz.
Size Range — The 38YCC is
available in nominal sizes 024, 036,
048 and 060 to meet the needs of
residential and light commercial
applications.
Compressor — Designed
specifically for heat pump duty, with
energy efficiency during heating and
cooling operation. The compressor is
hermetically sealed against
contamination to assure long life and
dependable performance, internally
sprung (units with reciprocating
compressor) and externally mounted
on rubber isolators for quiet operation.
Continuous compressor operation is
approved down to –30
° F (–34.4 ° C)
in the heating mode, and down to
55
° F (12.8 ° C) in the cooling mode.
(See heating and cooling performance
tables.)

Carrier 38YCC Specifications

General

Type	Heat Pump
Refrigerant	R-410A
Compressor Type	Scroll
Operating Sound Level	as low as 72 dB
Voltage	208/230V
Stages	Single-Stage
Cooling Capacity	24, 000 - 60, 000 BTU/h
Heating Capacity	24, 000 - 60, 000 BTU/h
Warranty	10-year parts limited warranty

Summary

Product Overview and Features

Product Description & Benefits

Describes the 38YCC 50 Hz outdoor units for heating/cooling and their benefits.

Key Features

Covers electrical range, size range, and compressor details.

Product Features, Quality, and Model

Internal Components and Design

Details reliable components, silencer, defrost control, cabinet, unit design, and service valves.

Safety, Quality Assurance, and Model ID

Covers safety compliance, quality certifications, and model number nomenclature.

Physical Data and Metering Device

Unit Physical Specifications

Covers weight, compressor, refrigerant, fan, coil, and tube dimensions.

Metering Device Information

Lists outdoor and indoor piston sizes.

Available Accessories

Control and Protection Accessories

Lists items like time-delay relays, low-ambient controllers, and cycle protectors.

Start Assist, Sound Hoods, and Thermostats

Details components for compressor start, sound, and thermostats/sensors.

Accessory Usage Guidelines

Accessory Application Matrix

Table showing accessory requirements for different application types.

Accessory Descriptions (A-L)

Detailed explanations for specific accessories like start assists and filters.

Accessory Description Details (M-W)

Low-Ambient Controller and Thermostatic TXV

Details controllers, thermostats, and expansion valves.

Unit Risers and Winter Start Control

Covers unit risers, time-delay relays, and winter start controls.

Electrical Data and Specifications

Unit Electrical Ratings

Details operating voltage, compressor, fan, MCA, wire size, and circuit breaker ratings.

Dimensional Data (S.I. Units)

Unit Dimensions and Clearances

Provides a diagram and table of unit dimensions in millimeters.

Dimensional Data (English Units)

Unit Dimensions and Clearances (Inches)

Provides a diagram and table of unit dimensions in inches.

Balance Point Worksheet (Metric)

Heating Capacity vs. Heat Loss Graph

Illustrates the relationship between building heat loss and unit heating capacity.

Balance Point Worksheet (Imperial)

Heating Capacity vs. Heat Loss (BTU/HR)

Graph showing building heat loss vs. unit heating capacity in BTU/HR.

Performance Summary

Cooling and Heating Ratings

Details capacity and power ratings for cooling and heating modes.

Sound Power Levels

Octave Band Frequency Analysis

Provides sound power levels across different octave bands.

Detailed Cooling Capacities (S.I.)

Cooling Capacity Data by Temperature (S.I.)

Presents detailed cooling capacities in kW for different air temperatures.

Detailed Cooling Capacities (S.I.) - Part 2

Extended Cooling Capacity Data (S.I.)

Continues the detailed cooling capacities table for various conditions.

Detailed Cooling Capacities (English)

Cooling Capacity Data by Temperature (English)

Details cooling capacities in MBtu/hr for different air temperatures.

Detailed Cooling Capacities (English) - Part 2

Extended Cooling Capacity Data (English)

Continues the English cooling capacities table.

Heat Pump Heating Performance (S.I.)

Heating Capacity Data (S.I. kW)

Presents detailed heating capacities in kW for various outdoor air temperatures.

Heat Pump Heating Performance (S.I.) - Part 2

Extended Heating Capacity Data (S.I.)

Continues the S.I. heating capacities table.

Heat Pump Heating Performance (English)

Heating Capacity Data (English Btuh)

Details heating capacities in Btuh for various outdoor air temperatures.

Heat Pump Heating Performance (English) - Part 2

Extended Heating Capacity Data (English)

Continues the English heating capacities table.

System Design Considerations

Installation and Operating Guidelines

Covers installation requirements, operating temperatures, and elevation limits.

Guide Specifications

General System Description and Quality

Outlines unit purpose, quality standards, and construction.

Product Components and Electrical

Describes components, electrical requirements, and special features.

Service Training Information

Training Program Options

Describes available packaged and classroom service training programs.