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York DM 300 User Manual

Technical guide, Description

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262259-YTG-E-1008

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

TECHNICAL GUIDE

SINGLE PACKAGE GAS/ELECTRIC UNITS

AND SINGLE PACKAGE AIR

CONDITIONERS

DM 180, 240 & 300

15, 20 & 25 NOMINAL TONS

®

DESCRIPTION

YORK Sunline 2000™ 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
refrigeration circuits with expansion valves, filter-driers,
high and low pressure/loss of charge switches and
freezestats

Scroll compressors (25T model only)

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 option

Constant supply air volume (CV) with optional variable
air volume (VAV)

Manufactured under the quality standards of ISO9001

Simplicity® Control Board

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

One-year parts warranty

A Five-year parts warranty on the compressors and
electric heat elements

Ten-year parts warranty on the gas-fired heat
exchangers

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