York Sunline 2000 D3CG090 - User Manual

SAFETY CONSIDERATIONS
Due to system pressure, moving parts and electrical
components, installation and servicing of air conditioning
equipment can be hazardous. Only qualified, trained, service
personnel should install, repair, maintain or service this
equipment.
Observe all precautions in the literature, on labels and tags
accompanying the equipment whenever working on air
conditioning equipment. Be sure to follow all other safety
precautions that apply.
Wear safety glasses and work gloves, and follow all safety
codes. Use a quenching cloth and have a fire extinguisher
available for all brazing operations.
GENERAL
YORK Model DCG units are single package air conditioners
with gas heat designed for outdoor installation on a rooftop or
a slab.
The units are completely assembled on rigid, permanently
attached base rails. All piping, refrigerant charge, and electrical
wiring is factory installed and tested. The units require only
electric power and duct connections at the point of installation.
The gas-fired heaters have aluminized steel tubular heat
exchangers and spark ignition with proven pilot.
INSPECTION
As soon as a unit is received, it should be inspected for possible
damage during transit. If damage is evident, the extent of the
damage should be noted on the carrier’s freight bill. A separate
request for inspection by the carrier’s agent should be made in
writing. Refer to Form 50.15-NM for additional information.
REFERENCE
Additional information on the design, installation, operation and
service of this equipment is available in the following reference
forms:
•
55.70-N1 - General Installation
•
55.70-N2 - Pre-start & Post-start Check List
•
530.18-N3.2V - Economizer Accessory
•
530.18-N3.8V - Motorized Outdoor Air Damper Accy.
•
530.18-N3.9V - Manual Outdoor Air Damper 0-35%
•
530.18-3.10V - Manual Outdoor Air Damper 0-100%
•
530.18-N8.4V - Gas Piping Accessory
•
530.18-N10.5V - Propane Conversion Accessory (USA)
•
530.18-N10.6V - High Altitude Accessory (Nat. Gas)
•
530.18-N10.7V - High Altitude Accessory (Propane)
•
690.15-N28V - Low Ambient Accessory
Renewal Parts:
•
Refer to the Renewal Parts Manual for complete listing of
replacement parts on this equipment.
All forms referenced in this instruction may be ordered from:
Publications Distribution Center
Unitary Products Group
P.O. Box 1592, York, Pa. 17405
APPROVALS
Design certified by U.L. & CGA as follows:
1. For use as a forced air furnace with cooling unit.
2. For outdoor installation only.
3. For installation on combustible material.
4. For use with natural gas or propane gas.
®
SUNLINE 2000
GAS / ELECTRIC
SINGLE PACKAGE AIR CONDITIONERS
INSTALLATION INSTRUCTION
Supersedes: 530.18-N10Y (995) 530.18-N10Y (398)
MODELS D3CG090, 102, 120
& D4CG090, 120, 150
035-16012
208/230/575 VOLT
MODELS ONLY
208/230/460 VOLT
MODELS ONLY
Installer should pay particular attention to the words: NOTE, CAUTION and WARNING . Notes are intended to clarify or make
the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury
and/or equipment damage may result if installation procedure is not handled properly.
CAUTION
THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE
WITH THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY
APPLICABLE LOCAL, STATE, AND NATIONAL CODES
INCLUDING, BUT NOT LIMITED TO, BUILDING, ELECTRICAL,
AND MECHANICAL CODES.
WARNING
INCORRECT INSTALLATION MAY CREATE A CONDITION
WHERE THE OPERATION OF THE PRODUCT COULD CAUSE
PERSONAL INJURY OR PROPERTY DAMAGE
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance
.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don’t touch electrical switches; do not use
any phones in the area of the gas leak.
3. Extinguish any open flame.
4. Immediately call your gas supplier from another
location. Follow your gas supplier’s
instructions.
5. If you cannot reach your gas supplier, call the
fire department.

Summary

Safety Considerations

General Unit Description

York Model DCG units are single package air conditioners with gas heat designed for outdoor installation.

Installation Procedures

Limitations and Codes

Units must be installed according to national and local safety codes, including electrical and fuel gas codes.

Location Selection

Guidelines for selecting a suitable outdoor installation location, considering air supply and contaminants.

Ductwork Installation

Power and Control Wiring

Requirements for field wiring, grounding, and fused disconnect switch compliance with codes.

Gas Piping

Sizing and installation of gas piping according to national and local codes for safe operation.

L.P. Gas Units, Tanks and Piping

Unit Operation

Cooling System Overview

Cooling Sequence of Operation

Safety Controls

Details safety devices like freezestat, high pressure cutout, and low pressure switch for system protection.

Heating Sequence of Operation

Describes the operation of the gas heat section for continuous and intermittent blower modes.

Heat Anticipator Setpoints

Guidelines for setting anticipators for proper heating cycle length and temperature control.

Unit Start-Up Procedures

Operating Instructions

Instructions for lighting the pilot and main burners and shutting down the unit.

Post-Start Check List (Gas)

Manifold Gas Pressure Adjustment

Procedure for adjusting the gas pressure regulator for correct high-fire gas flow.

Pilot Checkout

Pre-Start Checklist

Burner Air Shutter Adjustment

Checking Supply Air CFM

Performance Adjustments

Temperature Rise Adjustment

Checking Gas Input

Methods to measure and verify gas input rate against furnace rating.

Maintenance Procedures

Normal Maintenance

Troubleshooting

Draft Motor Operates, Blower Does Not

Diagnosing issues when the draft motor runs but the supply air blower does not.

Draft Motor Runs, Furnace Fails to Light

Troubleshooting steps for when the draft motor runs but the furnace does not ignite.

Pilot Ignites, Sparker Continues to Spark

Pilot Ignites, Main Burners Do Not Light

Pilot Ignites, Gas Odor Detected

Main Burners Light, Erratic Flame

Replacement Parts

York Sunline 2000 D3CG090 Specifications

General

Brand	York
Model	Sunline 2000 D3CG090
Category	Air Conditioner
Language	English