York Sunline 2000 D4CG090 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.

York Sunline 2000 D4CG090 Specifications

General

Model Number	D4CG090
Category	Air Conditioner
Series	Sunline 2000
Cooling Capacity	9000 BTU/h
Power Supply	220-240V, 50Hz
Refrigerant	R410A

Summary

Safety Considerations

General Safety Precautions

Wear safety glasses and work gloves, follow safety codes, and have fire extinguisher ready for brazing.

Gas Leak Safety

Immediate actions for gas leak: open windows, avoid electrical switches/phones, extinguish flames, call gas supplier or fire dept.

Flammable Liquids Safety

Do not store or use flammable vapors or liquids near the appliance to prevent fire hazards.

Installation Guidelines

Installation Limitations

Install units in accordance with National Electrical Code, National Fuel Gas Code, and local codes.

Unit Location Selection

Position unit for outdoor installation, ensuring adequate air supply and proper clearances from obstructions.

Power and Control Wiring

Electrical Compliance and Grounding

Field wiring must comply with NEC, CEC, and local codes. Ensure proper electrical grounding.

Voltage Tolerances and Wiring Practices

Adhere to voltage tolerances. Use waterproof connectors. Wire must be sized properly and connected to a separate branch circuit.

Gas Piping and Connection

Gas Line Sizing and Material

Size gas piping according to code and gas utility. Use wrought iron or steel pipe with appropriate compounds.

Enthalpy Setpoint Adjustment

Adjusting Enthalpy Setpoint

Carefully turn the set point adjusting screw to achieve the desired enthalpy setpoint for damper control.

Damper Blade Smoothness Check

Supply Air Blower Performance

Blower Performance Tables (7-10 Ton)

Supply Air Blower Performance (12-1/2 Ton)

Blower Performance Data (12-1/2 Ton)

Electrical Data

Unit Electrical Specifications Table

Lists FLA, LRA, motor HP, ampacity, fuse, and breaker sizes for all models and voltages.

Cooling System Operation

Cooling System Operation and Safety

Heating Sequence Operation

Heating Sequence Description

Safety Controls

Various Safety Control Functions

Details operation of Limit Control, Centrifugal Switch, Redundant Gas Valve, Flame Sensor, Auxiliary Limit, and Rollout Switch.

Heat Anticipator Setpoints

Anticipator Setting Importance

Start-Up Procedures

Pilot and Main Burner Ignition

Step-by-step guide for lighting the pilot and main burners; emphasizes not manually lighting the pilot.

Post-Start Check List (Gas)

Gas Leak and Pressure Verification

Check for gas leaks and verify manifold/supply gas pressures against unit specifications.

Manifold Gas Pressure Adjustment

Adjusting High-Fire Gas Pressure

Pilot Checkout and Adjustment

Pilot Flame Adjustment

Pre-Start Check List

Gas Type and Hood Installation Verification

Checking Supply Air CFM

Determining Blower RPM

Airflow Measurement Procedure

Temperature Rise Adjustment

Calculating CFM from Temperature Rise

Checking Gas Input

Natural Gas Input Measurement

Measure gas consumption per hour by timing meter dial revolutions and using gas rate tables.

Gas Input Verification and Adjustment

Compare actual input to furnace rating. Adjust orifices if input deviates more than 5% from the rating.

Normal Maintenance Procedures

Routine Maintenance Tasks

Cleaning Flue Passages and Heating Elements

Heat Exchanger and Flue Cleaning

Troubleshooting Guide

Draft Motor Malfunctions

Diagnose draft motor issues by checking for voltage, relay operation, and inherent protection.

Blower Motor Start Failures

Troubleshoot blower motor not starting by verifying power, contactor, capacitor, and wiring.

Furnace Ignition and Spark Issues

Address furnace ignition problems by checking 24V circuits, limit switches, ignitor control, and wiring connections.

Pilot Flame Ignition Failures

Troubleshoot pilot ignition issues: verify gas supply, pressure, pilot orifice, wiring, and ignitor control.