York DH 180 - User Manual

262260-YTG-E-1008
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
SINGLE PACKAGE GAS/ELECTRIC UNITS
AND SINGLE PACKAGE
AIR CONDITIONERS
DH 180, 210, 240 & 300
15, 17.5, 20 & 25 NOMINAL TONS
10.8 EER (15 TONS), 10.2 EER (17.5 TONS), 9.7 EER (20
TONS) AND 9.6 EER (25 TONS)
®
TECHNICAL GUIDE
DESCRIPTION
YORK Sunline Ultra™ units are convertible single package
high efficiency rooftops. All models have independent 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.
All units include:
• Powder Paint finish that meets ASTM-B-117 1000 hour
salt spray standards
• Two-stage cooling provided by dual independent refriger-
ation circuits with expansion valves, filter-driers, high and
low pressure/loss of charge switches and freezestats
• Hermetically sealed scroll compressors with crankcase
heaters
• Two-stage heating provided by dual independent heat
exchangers with aluminized steel tubes, redundant gas
valves, spark ignition with induced draft logic
• Permanently lubricated motors
• Bottom or side air discharge configuration capability
(field convertible)
• Belt drive blower motor with high static drive options
• Constant supply air volume (CV) with optional variable
air volume (VAV)
• 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
• Hinged filter access and tool free latched doors optional
• Hinged tool free blower, blower motor, filters and electri-
cal panel access optional
• 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.
• Ten-year parts warranty on the gas-fired heat
exchangers.

Summary

Description

Warranty

Product Nomenclature

Features

Low Ambient Operation

Allows operation in cooling mode down to 0°F outdoor ambient.

Safety Monitoring

Monitors high/low pressure switches, freezestats, and limit switches.

Factory-Installed Options

Electronic Enthalpy Economizers

Controls outdoor air intake for free cooling based on enthalpy.

Variable Air Volume (VAV)

Uses VFD to maintain constant supply duct static pressure.

Field-Installed Accessories

Roof Curbs

Provides a watertight seal between the unit and the finished roof.

Propane Conversion Kit

Contains parts to convert natural gas furnace to propane.

Altitude and Temperature Corrections

Altitude Correction Factors

Factors to adjust blower performance for altitude and temperature.

Control Wiring

Typical Field Wiring Diagram

Illustrates thermostat and unit control board wiring connections.

Power Wiring

Details on sizing power wiring, fuses, and disconnect switches.

Guide Specifications

General

Outlines unit construction, testing, and warranty standards.

Unit Cabinet

Describes cabinet material, insulation, and accessibility features.

Gas Heating Section

Details combustion, heat exchanger, and burner specifications.

Electric Heating

Covers heating elements, staging, and safety controls.

Electrical Requirements

Specifications for unit power entry and wiring.

York DH 180 Specifications