York BQ240 User Manual

036-21489-001-C-1004
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
TECHNICAL GUIDE
SUNLINE 2000™
SINGLE PACKAGE
AIR-TO-AIR
HEAT PUMPS
MODEL BQ240
20 NOMINAL TONS
8.8 EER
®
DESCRIPTION
York
®
Sunline 2000™ Heat Pumps are convertible single package
units. All models have dual refrigerant circuits for efficient part load
operation. Although the units are primarily designed for curb
mounting on a roof, they can also be slab-mounted at ground level
or set on steel beams above a finished roof.
These heat pumps utilize a unique ambient compensated time-
temperature defrost system. The defrost module automatically
increases the time interval between defrost cycles as the outdoor
ambient temperature decreases. This helps to eliminate unneces-
sary and costly defrosts.
All units include:
• Powder Paint finish that meets ASTM-B-117 1000 hour salt
spray standards
• Two-stage cooling provided by dual independent refrigeration
circuits with expansion valves, filter-driers, high and low pres-
sure/loss of charge switches and freezestats
• Hermetically sealed compressors with crankcase heaters
• Permanently lubricated motors
• Bottom or side air discharge configuration capability (field con-
vertible)
• Belt Drive Blower Motor
• Manufactured under the quality standards of ISO9001
• Twenty-four volt control circuit with compressor lock-out
• Zero-25% fixed air damper with hood
• Copper tube/aluminum fin coils
• Easy access to all components
• Rigging holes in base rails for lifting
• Single point power connection
• Complete factory package - tested, charged and wired
• CSA agency approvals on all units
WARRANTY
• Factory Limited Parts Warranty
• One-year parts warranty
• A Five-year parts warranty on the compressor and
electric heat elements.

York BQ240 Specifications

Power

voltage	208/230 V, 460 V, 575 V

Refrigerant Components

transformers capacity	75 VA
refrigerant circuits	dual
circuit breakers	24 V

Summary

YORK Sunline 2000™ Heat Pumps

Product Description

General overview of the YORK Sunline 2000™ heat pumps, their design, and key features.

YORK Heat Pump Warranty

Details the warranty coverage for YORK Sunline 2000™ heat pump units and components.

YORK Sunline 2000™ Model Nomenclature

Model Number Decoding

Explanation of how to interpret the YORK Sunline 2000™ heat pump model number.

YORK Sunline 2000™ Heat Pump Features

YORK Sunline 2000™ Configuration Options

Factory-Installed Options

List of options that can be pre-installed on YORK Sunline 2000™ heat pumps.

Field-Installed Accessories

Accessories available for field installation on YORK Sunline 2000™ heat pumps.

YORK Sunline 2000™ Performance Adjustments

Altitude & Temperature Correction Factors

Correction factors for applying performance data at varying altitudes and temperatures.

YORK Sunline 2000™ Physical Specifications

Unit Dimensions and Clearances

Physical dimensions and required installation clearances for the heat pump unit.

Utilities Entry Locations

Specifies the points for electrical and control wiring entry into the unit.

YORK Sunline 2000™ Installation and Application

Roof Curb Installation Details

Information on roof curb dimensions, benefits, and application.

Typical Installation Scenarios

Illustrations of common roof-top and ground-level installation methods.

YORK Sunline 2000™ Control System

Simplicity® Control Wiring Diagram

Detailed wiring diagram for the Simplicity® control system on the heat pump.

YORK Sunline 2000™ Guide Specifications

General Unit Construction

Manufacturing standards, materials, and overall design of the heat pump.

Unit Cabinet and Description

Details on the unit's cabinet, housing, and a descriptive overview of its components.

Internal Systems: Fan, Refrigeration, Heating

Specifications for the indoor fan assembly, refrigerant circuit, and electric heating sections.

Electrical Requirements & Limited Warranties

Power supply needs, electrical connections, and summary of unit warranty coverage.