York D1NA018, D2NA060 User Manual

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J

CHAMPION®

SERIES

 

SINGLE PACKAGE AIR CONDITIONERS

 

GAS/ELECTRIC, AIR-COOLED

INSTALLATION INSTRUCTION

Supersedes: 035-18265-000-A-0801

035-18265-001-A-0202

MODELS D1NA018 THRU 048 AND MODEL D2NA060

1-1/2 THRU 5 TON

(10 SEER)

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Extinguish any open flames.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

If you cannot reach your gas supplier, call the fire department.

GENERAL

YORK Model D1NA and D2NA units are cooling/heating air conditioners designed for outdoor installation. Only gas piping, electric power and duct connections are required at the point of installation.

The gas-fired heaters have hot surface to pilot ignition. The tubular heat exchangers are aluminized steel.

This appliance is not to be used for temporary heating of buildings or structures under construction.

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.

REPLACEMENT PARTS

Refer to Replacement Parts, Form 530.46-RP1Y, RP2Y, RP3Y, RP4Y and RP5Y for Key Replacement Parts.

All forms referenced in this instruction may be ordered from:

Standard Register

Norman, OK 73069

Toll Free: Tel. 877-318-9675/Fax. 877-379-7920

APPROVALS

Design certified by CGA and AGA listed as follows:

1.For use as a forced air furnace with cooling unit.

2.For outdoor installation only.

3.For installation directly on combustible flooring or, in U.S., on wood flooring or Class A; B; C roof covering material.

4.For installation on combustible material.

5.For use with natural gas and/or propane (LP) gas.

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 O R PRO PERT Y DAM AG E.

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.

035-18265-001-A-0202

TABLE OF CONTENTS

General............................................................................

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLESHOOTING

 

Inspection

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting Chart

 

 

 

15

Replacement Parts

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Approvals.........................................................................

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLES

 

 

 

 

Nomenclature ..................................................................

 

 

 

 

 

 

 

 

2

 

 

 

 

No.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

INSTALLATION

 

 

 

 

 

Page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Limitations........................................................................

 

 

 

 

 

 

 

 

3

 

 

1

 

 

 

 

Units Application Data

 

 

 

3

Location

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

Natural Gas Application Data

5

Rigging and Handling

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

LP Gas Application Data

 

 

 

5

Clearances ......................................................................

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

Ductwork..........................................................................

 

 

 

 

 

 

 

 

3

 

 

4

 

 

 

 

Natural Gas Pipe Sizing ..............................

 

 

 

5

Roof Curb ........................................................................

 

 

 

 

 

 

 

 

4

 

 

5

 

 

 

 

LP Gas Pipe Sizing

 

 

 

5

Filters

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

Physical Data

 

 

 

6

Condensate Drain

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

Unit Weights

 

 

 

7

Service Access ................................................................

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

Thermostat.......................................................................

 

 

 

 

 

 

 

 

4

 

 

8

 

 

 

 

Electrical Data .............................................

 

 

 

7

Power and Control Wiring................................................

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compressors ...................................................................

 

 

 

 

 

 

 

 

4

 

 

9

 

 

 

 

Gas Rate - Cubic Feet Per Hour

11

Combustion Discharge

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

Superheat Charging Table, 018

13

Gas Piping .......................................................................

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

Gas Connection ...............................................................

 

 

 

 

 

 

 

 

5

 

 

11

 

 

 

 

Superheat Charging Table, 024...................

13

Flue Vent Hoods ..............................................................

 

 

 

 

 

 

 

 

6

 

 

12

 

 

 

 

Superheat Charging Table, 030

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEQUENCE OF OPERATION

 

 

 

 

 

13

 

 

 

 

Superheat Charging Table, 036...................

13

Heating ............................................................................

 

 

 

 

 

 

 

 

9

 

 

14

 

 

 

 

Superheat Charging Table, 042...................

14

Cooling ............................................................................

 

 

 

 

 

 

 

 

9

 

 

15

 

 

 

 

Superheat Charging Table, 048

14

Circulating Fan

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

Superheat Charging Table, 060

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START-UP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURES

 

 

 

 

Pre-start Check List .........................................................

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Instructions......................................................

 

 

 

 

 

 

 

 

9

 

 

 

 

No.

 

 

 

 

 

 

 

 

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To Turn Off Gas To Unit ...................................................

 

 

 

 

 

 

 

 

9

 

 

Page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Post-Start Check List (Gas) .............................................

 

 

 

 

 

 

 

 

9

 

 

1

 

 

 

 

Field Wiring Diagram

 

 

 

4

Manifold Gas Pressure Adjustment

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

External Supply Connection

5

Burner Instructions

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Flue Vent Hood

 

 

 

6

Hot Surface Pilot Instructions ..........................................

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

Adjustment of Temperature Rise .....................................

 

 

 

 

 

 

 

 

11

 

 

4

 

 

 

 

Center of Gravity .........................................

 

 

 

7

Checking Gas Input .........................................................

 

 

 

 

 

 

 

 

11

 

 

5

 

 

 

 

Dimensions and Clearances

8

Secure Owner's Approval

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

Gas Valves

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAINTENANCE

 

 

 

 

 

7

 

 

 

 

Proper Flame Adjustment............................

 

 

 

10

Normal Maintenance........................................................

 

 

 

 

 

 

 

 

12

 

 

8

 

 

 

 

Ignitor and Flame Sensor Assembly

10

Cleaning Flue Passages and Heating Elements

12

 

 

 

 

 

 

 

 

9

 

 

 

 

Typical Wiring Diagram, (208/230-1-60)

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

Typical Wiring Diagram, (208/230-3-60)......

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

Typical Wiring Diagram, (460-3-60).............

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOMENCLATURE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

 

1

 

N

A

 

0

2

 

4

 

N

 

0

3

6

 

 

0

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRODUCT CATEGORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE CODE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D = Single Package

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

06 = 208/230-1-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air Conditioner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25 = 208/230-3-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOMINAL COOLING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46 = 460-3-60

 

 

PRODUCT GENERATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAPACITY (MBH)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

58 = 575-3-60

 

 

1 = 1st Generation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

018 = 18,000 BTUH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 = 2nd Generation

 

 

 

 

 

 

 

 

FACTORY

 

 

 

 

 

 

 

 

NOMINAL GAS HEATING

 

 

 

 

 

 

024 = 24,000 BTUH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

030 = 30,000 BTUH

 

 

INSTALLED

 

 

 

 

 

 

 

 

 

OUTPUT CAPACITY

 

 

PRODUCT IDENTIFIER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036 = 36,000 BTUH

 

 

 

GAS HEAT

 

 

 

 

 

036 = 36,000 BTUH

065 = 65,000 BTUH

 

NA = 10 SEER

 

 

 

 

 

 

 

 

 

 

 

 

 

042 = 42,000 BTUH

 

 

N = Natural Gas

 

 

056 = 56,000 BTUH

090 = 90,000 BTUH

 

Gas Heat / Electric Cool

 

 

048 = 48,000 BTUH

 

 

 

072 = 72,000 BTUH

110 = 110,000 BTUH

 

 

 

 

 

 

 

Heat Installed

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

060 = 60,000 BTUH

 

 

 

 

 

 

 

 

 

 

 

 

Unitary Products Group

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

035-18265-001-A-0202

INSTALLATION

Not suitable for use with conventional venting systems.

LIMITATIONS

These units must be installed in accordance with the following national and local safety codes.

1.National Electrical Code ANSI/NFPS No. 70 or Canadian Electrical Code Part 1, C22.1 (latest editions).

2.National Fuel Gas Code Z223.1 or CAN/CGA B149.1 or .2 Installation Code.

3.Local gas utility requirements.

4.Local plumbing and waste water codes and other applicable local codes.

Refer to Table 1 for unit application data and to Table 2 for gas heat application data.

If components are to be added to a unit to meet local codes, they are to be installed at the dealer's and/or the customer's expense.

Size of unit for proposed installation should be based on heat

TABLE 1 - UNIT APPLICATION DATA

Voltage Variation

 

208/230V3

187 / 2533

 

460V

414

/ 504

Min. / Max.1

 

 

575V

518

/ 630

 

 

Wet Bulb Temperature (° F) of Air on

57

/ 72

Evaporator Coil,

Min. / Max.

 

 

Dry Bulb Temperature (° F) of Air on

45 / 120

Condenser Coil,

Min.2 / Max.

1 Rated in accordance with ARI Standard 110, utilization"A".

2 A low ambient accessory is available for operation down to 0° F

3“T1" transformer primary tap must be moved from the 230 volt connection to the 208 volt connection for low voltage applications of 208 volt and below.

loss/heat gain calculations made in accordance with industry recognized procedures identified by the Air Conditioning Contractors of America.

LOCATION

Use the following guidelines to select a suitable location for these units.

1.Unit is designed for outdoor installation only.

2.Condenser must have an unlimited supply of air. Where a choice of location is possible, position unit on either north or east side of building.

WARNING: Excessive exposure of this furnace to contaminated combustion air may result equipment damage or personal injury. Typical contaminates include: permanent wave solutions, chlorinated waxes and cleaners, chlorine based swimming pool chemicals, water softening chemicals, carbon tetrachloride, Halogen type refrigerants, cleaning solvents (e.g. perchloroethylene), printing inks, paint removers, varnishes, hydrochloric acid, cements and glues, antistatic fabric softeners for clothes dryers, masonry acid washing materials.

3.For ground level installation, a level pad or slab should be used. The thickness and size of the pad or slab used should meet local codes and unit weight. Do not tie the slab to the building foundation.

4.For roof top installation, be sure the structure will support the weight of the unit plus any field installed components. Unit must be installed on a level roof curb or appropriate an-

gle iron frame providing adequate support under the compressor/condenser section.

5. Maintain level tolerance of unit to 1/8" maximum.

RIGGING OR HANDLING

Care must be exercised when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig unit with slings placed under the unit. Spreader bars of sufficient length should be used across the top of the unit.

BEFORE LIFTING A UNIT, MAKE SURE THAT ITS WEIGHT IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT WILL LIFT EVENLY.

Units may also be moved or lifted with a fork-lift. Slotted openings in the skid are provided for this purpose. Forks must pass completely through the base.

Refer to Table 7 for unit weights and to Figure 4 for approximate center of gravity.

CLEARANCES

All units require certain clearances for proper operation and service. Refer to Figure 5 for the clearances required for combustion, construction, servicing and proper unit operation.

WARNING: Do not permit overhanging structures or shrubs to obstruct the condenser air discharge, combustion air inlet or vent outlet.

DUCT WORK

These units are adaptable to downflow use as well as rear supply and return air duct openings. To convert to downflow, use the following steps:

1.Remove the duct covers found in the bottom return and supply air duct openings. There are four (4) screws securing each duct cover (save these screws to use later).

2.Install the duct covers, removed in step one, to the rear supply and return air duct openings. Secure with the four

(4) screws used in step one.

3.Seal the duct covers with silicone caulk.

Duct work should be designed and sized according to the methods of the Air Conditioning Contractors of America (ACCA), as set forth in their Manual D.

A closed return duct system shall be used. This shall not preclude use of economizers or ventilation air intake. Flexible joints may be used in the supply and return duct work to minimize the transmission of noise.

CAUTION: When fastening duct work to the side duct flanges on the unit, insert the screws through the duct flanges only. DO NOT insert the screws through the casing. Outdoor duct work must be insulated and waterproofed.

NOTE: Be sure to note supply and return openings.

Unitary Products Group

3

035-18265-001-A-0202

Refer to Figure 5 for information concerning rear and bottom supply and return air duct openings.

ROOF CURB

On applications when a roof curb is used, the unit must be positioned on the curb so the front of the unit is tight against the curb.

FILTERS

Single phase units are shipped without a filter and is the responsibility of the installer to secure a filter in the return air ductwork or install a Filter/Frame Kit (1FF0110 for the D1NA018 thru D1NA042 and 1FF0112 for the D1NA048 and D2NA060).

A filter rack and filters are standard on three phase units.

NOTE: Filters on the D1NA048 and D2NA060 units require the use of a 516" nut driver for removal.

Filters must always be used and must be kept clean. When filters become dirt laden, insufficient air will be delivered by the blower, decreasing your units efficiency and increasing operating costs and wear-and-tear on the unit and controls.

Filters should be checked monthly especially since this unit is used for both heating and cooling.

CONDENSATE DRAIN

A condensate trap is recommended to be installed in the condensate drain. The plumbing must conform to local codes. Use a sealing compound on male pipe threads. Install the condensate drain line (34“ NPTF) to spill into an open drain.

SERVICE ACCESS

Access to all serviceable components is provided by the following removable panels:

Blower compartment

Gas control/electrical service access

Refer to Figure 5 for location of these access panels and minimum clearances.

THERMOSTAT

The room thermostat should be located on an inside wall approximately 56" above the floor where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances. Follow manufacturer's instructions enclosed with the thermostat for general installation procedure. Four color coded insulated wires (minimum #18 AWG) should be used to connect thermostat to unit. See Figure 1.

POWER AND CONTROL WIRING

Field wiring to the unit must conform to provisions of the current N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordinances. The unit must be electrically grounded in accordance with local codes or, in their absence, with the N.E.C./C.E.C. Voltage tolerances which must be maintained at the compressor terminals during starting and running conditions are indicated on the unit Rating Plate and Table 8.

The wiring entering the cabinet must be provided with mechanical strain relief.

A fused disconnect switch should be field provided for the unit. If any of the wire supplied with the unit must be replaced, replacement wire must be of the type shown on the wiring diagram.

Electrical line must be sized properly to carry the load. Each unit must be wired with a separate branch circuit fed directly from the meter panel and properly fused.

Refer to Figure 1 for typical field wiring and to the appropriate unit wiring diagram for control circuit and power wiring information.

COMPRESSORS

Units are shipped with compressor mountings factory-adjusted for shipping. CAUTION: Loosen compressor mounting bolts half turn before operating unit.

THERMOSTAT

CONTROL WIRING

** = Minimum wire size of 18 AWG

R

R

wire shuold be used for all field

 

 

installed 24 volt wire.

G

G

 

PROGRAMABLE

Y

Y

THERMOSTAT ONLY

 

 

 

W

W

 

 

NOTE:

 

 

 

HEAT ANTICIPATOR

 

 

 

SHOULD BE SET AT 0.35

 

 

 

AMPS FOR ALL MODELS.

 

 

 

 

 

 

CAUTION: Label all wires prior

 

 

to disconnection when

 

24 VOLT

servicing controls.

 

 

 

Wiring errors can cause

 

TRANSFORMER

improper and dangerous

operation. Verify proper operation after servicing.

CC

P O W E R

WIRING

REFER TO ELECTRICAL

DATA TABLES TO SIZE THE

DISCONNECT SWITCH,

WIRING & OVERCURRENT

FIG. 1 - TYPICAL FIELD WIRING DIAGRAM

REFER TO ELECTRICAL DATA TABLES TO SIZE THE DISCONNECT SWITCH, WIRING & OVERCURRENT

4

Unitary Products Group

Scroll compressors operate in one direction only. If a three phase scroll compressor is experiencing:

Low amperage draw

Similar discharge and suction pressures

Increased noise level

then the compressor is operating in reverse. To correct this condition, switch any two (2) line voltage leads at the contactor. Please note, single phase scroll compressor will start and run in one direction only. The reverse operation is not a concern.

COMBUSTION DISCHARGE

TABLE 2 - NATURAL GAS APPLICATION DATA

Input

Output

Available

Gas

Number

Temp. Rise ° F

Capacity

Capacity

On

Rate1

of

At Full Input2

(Mbh)3

(Mbh)

Models

Ft.3/Hr.

Burners

Min.

Max.

45

36

11 , 2, 2 12, 3 &

42

2

25

55

2 3 12 TON

70

56

2 & 2 12

TON

65

3

30

60

3 & 3 12

TON

65

3

25

55

 

 

90

72

3 & 3 12

TON

84

4

30

60

80

64

4 & 5 TON

74

3

25

55

108

86

4 & 5 TON

100

4

30

60

135

108

4 & 5 TON

126

5

35

65

1 Based on 1075 BTU/Ft.3.

2 The air flow must be adjusted to obtain a temperature rise within the range shown. Continuous return air temperatures should not be below 55°F.

3 Heating capacity valid for elevations up to 2000 feet above sea level. For elevations above 2000 feet, rated capacity should be reduced by 4% for each 1000 feet above sea level.

TABLE 3 - PROPANE (LP) GAS APPLICATION DATA

Input

Output

Available

Gas

Number

Temp. Rise ° F

Capacity

Capacity

On

Rate1

of

At Full Input2

(Mbh)3

(Mbh)

Models

Ft.3/Hr.

Burners

Min.

Max.

45

36

11 , 2, 2 12, 3 &

18

2

25

55

2 3 12 TON

70

56

2 & 2 12

TON

28

3

30

60

3 & 3 12

TON

28

3

25

55

 

 

90

72

3 & 3 12

TON

36

4

30

60

80

64

4 & 5 TON

32

3

25

55

108

86

4 & 5 TON

43

4

30

60

135

108

4 & 5 TON

54

5

35

65

1 Based on 2500 BTU/Ft.3.

2 The air flow must be adjusted to obtain a temperature rise within the range shown. Continuous return air temperatures should not be below 55°F.

3 Heating capacity valid for elevations up to 2000 feet above sea level. For elevations above 2000 feet, rated capacity should be reduced by 4% for each 1000 feet above sea level.

4 Propane applications are accomplished by field installation of a Propane Conversion Accessory, Model 1NP0805 for 1.5 thru 3.5 ton units and Model 1NP0806 for 4 and 5 ton units.

TABLE 4 - NATURAL GAS PIPE SIZING CHART

Length

 

Nominal Inches Iron Pipe Size

 

in

1/2 in.

 

3/4 in.

1 in.

 

1-1/4 in.

Feet

 

 

 

 

 

 

 

 

10

132

 

278

520

 

1,050

20

92

 

190

350

 

730

30

73

 

152

285

 

590

40

63

 

130

245

 

500

50

56

 

115

215

 

440

60

50

 

105

195

 

400

70

46

 

96

180

 

370

80

43

 

90

170

 

350

90

40

 

84

160

 

320

100

38

 

79

150

 

305

Maximum Capacity of Pipe in Cubic Feet of Gas Per Hour (Based Upon A Pressure Drop of 0.3 Inch Water Column and 0.6 Specific Gravity Gas).

035-18265-001-A-0202

GAS PIPING

Proper sizing of gas piping depends on the cubic feet per hour of gas flow required, specific gravity of the gas and the length of run. “National Fuel Gas Code” Z223.1 or CAN/CGA B149.1 or

.2 should be followed in all cases unless superseded by local codes or gas company requirements. Refer to Tables 4 and 5.

The heating value of the gas may differ with locality. The value should be checked with the local gas utility.

NOTE: There may be a local gas utility requirement specifying a minimum diameter for gas piping. All units require a 1/2 inch pipe connection at the gas valve.

GAS CONNECTION

The gas supply line can be routed through the hole located on the left side of the unit. Refer to Figure 5 to locate these access openings. Typical supply piping arrangements are shown in Figure 2.

AUTOMATIC

GAS VALVE

12 x 12 UNION

12 x 12 GAS COCK

12 - 14 NPT

DRIP LEG

FIG. 2 - EXTERNAL SUPPLY CONNECTION

EXTERNAL SHUT-OFF

Gas piping recommendations:

1.A drip leg and a ground joint union must be installed in the gas piping.

2.When required by local codes, a manual shut-off valve may have to be installed outside of the unit.

TABLE 5 - PROPANE (LP) GAS PIPE SIZING CHART

Length

 

Nominal Inches Iron Pipe Size

 

in

1/2 in.

 

3/4 in.

1 in.

 

1-1/4 in.

Feet

 

 

 

 

 

 

 

 

10

275

 

567

1,071

 

2,205

20

189

 

393

732

 

1,496

30

152

 

315

590

 

1,212

40

129

 

267

504

 

1,039

50

114

 

237

448

 

913

60

103

 

217

409

 

834

70

96

 

196

378

 

771

80

89

 

185

346

 

724

90

83

 

173

322

 

677

100

78

 

162

307

 

630

Maximum Capacity of Pipe in Thousands of BTU Per Hour (Based Upon A Pressure Drop of 0.5 Inch Water Column).

Unitary Products Group

5

035-18265-001-A-0202

3.Use wrought iron or steel pipe for all gas lines. Pipe dope should be applied sparingly to male threads only.

CAUTION: If flexible stainless steel tubing is allowed by the authority having jurisdiction, wrought iron or steel pipe must be installed at the gas valve and extend a minimum of two (2) inches outside of the unit casing.

WARNING: Natural gas may contain some propane. Propane, being an excellent solvent, will quickly dissolve white lead or most standard commercial compounds. Therefore, a special pipe dope must be applied when wrought iron or steel pipe is used. Shellac base compounds such as Gaskolac or Stalastic, and compounds such as Rectorseal #5, Clyde's or John Crane may be used.

4.All piping should be cleaned of dirt and scale by hammering on the outside of the pipe and blowing out the loose dirt and scale. Before initial start-up, be sure that all of the gas lines external to the unit have been purged of air.

5.The gas supply should be a separate line and installed in accordance with all safety codes as prescribed under “Limitations”. After the gas connections have been completed, open the main shut-off valve admitting normal gas pressure to the mains. Check all joints for leaks with soap solution or other material suitable for the purpose. NEVER USE A FLAME.

6.The furnace and its individual manual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.48 kPa).

The furnace must be isoulated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.48 kPa).

FLUE VENT HOOD

The flue vent hood with screen is not shipped attached. This hood must be installed to assure proper unit operation. The hood must be fastened to the outside of the side gas control/electrical compartment with the screws provided in the bag attached to the inside of the gas control/electrical compartment, see Figure 3.

The unit is controlled by a conventional four wire heating/cooling thermostat common to this class of equipment.

WARNING: FLUE HOOD SURFACES

MAY BE HOT.

V E N T O U T L E T S C R E E N

F L U E V E N T O U T

A I R H O O D

FIG. 3 - FLUE VENT OUTLET AIR HOOD

CAUTION

The flue exhaust hood must be properly installed and within the recommended clearances. Further communications and action must be given to the home or building owner(s) to eleiminate any unauthorized humon contact around this area during the heating cycle. Flue hood surface and immediate area is designed to operate at high temperatures during the heating cycle.

TABLE 6 - PHYSICAL DATA

 

MODELS

 

 

 

DNA

 

 

 

 

018

024

030

036

042

048

060

 

 

EVAPORATOR

CENTRIFUGAL BLOWER (Dia. x Wd. in.)

10 X 8

10 X 8

10 X 8

11 x 10

11 x 10

12 x 11

12 x 11

BLOWER

FAN MOTOR HP (Three Speed)

12

12

12

34

34

1.0

1.0

EVAPORATOR

ROWS DEEP

2

2

2

2

3

3

3

FINS PER INCH

14

13

13

15

13

13

13

COIL

FACE AREA (Sq. Ft.)

2.25

3.5

3.5

3.5

3.5

4.5

4.5

 

CONDENSER

PROPELLER DIA. (in.)

22

22

22

22

22

22

22

FAN MOTOR HP

14

14

14

14

14

14

14

FAN

NOM. CFM TOTAL

1,800

2,200

2,400

2,400

2,400

3,000

3,000

 

CONDENSER

ROWS DEEP

1

1

1

1

1

1

1

FINS PER INCH

13

13

16

20

20

20

20

COIL

FACE AREA (Sq. Ft.)

8.3

8.3

11.7

11.7

11.7

14.8

14.8

 

CHARGE

REFRIGERANT 22 (lbs./oz.)

3 / 2

3 / 6

4 / 12

4 / 3

4 / 12

6 / 0

5 / 4

FILTER*

FACE AREA (Sq. Ft.) / SIZE (NOMINAL)

2.6/20x20

2.6/20x20

2.6/20x20

2.6/20x20

2.6/20x20

3.3/20x12

3.3/20x12

 

NATURAL GAS BURNER ORIFICE NO.

43

43

43

43

43

40

40

 

(Qty./Drill size)

FURNACE

 

 

 

 

 

 

 

PROPANE BURNER ORIFICE NO.

55

55

55

55

55

53

53

SECTION

(Qty./Drill size)

 

 

 

 

 

 

 

 

 

GAS CONNECTION SIZE

12 NPTI

12 NPTI

12 NPTI

12 NPTI

12 NPTI

12 NPTI

12 NPTI

COMPRESSOR

HERMETICALLY SEALED

R

R

R

R

R

S

S

TYPE

(R = RECIPROCATING, S = Scroll)

 

 

 

 

 

 

 

*= Three phase 018 thru 042 size units are supplied with one (1) filter and on three phase 048 and 060 size units two (2) filters are supplied. Single phase units are shipped without filters. See “FILTERS” on page 4.

6

Unitary Products Group

035-18265-001-A-0202

TABLE 7 - UNIT WEIGHTS

 

UNIT

UNIT

CORNER OPERATING WEIGHTS

 

MODEL

SHIPPING

OPERATING

(lbs., location, see Figure 4)

DNA

WEIGHT

WEIGHT

 

 

 

 

 

 

“A”

“B”

“C”

 

“D”

 

(lbs.)

(lbs.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

018

365

360

91

88

89

 

92

 

 

 

 

 

 

 

 

 

 

024

365

360

91

88

89

 

92

 

 

 

 

 

 

 

 

 

 

030

395

390

98

95

96

 

99

 

 

 

 

 

 

 

 

 

 

036

400

395

100

96

98

 

101

 

 

 

 

 

 

 

 

 

 

042

405

410

104

100

101

 

105

 

 

 

 

 

 

 

 

 

 

048

475

470

119

115

116

 

120

 

 

 

 

 

 

 

 

 

 

060

480

475

120

116

117

 

122

 

 

 

 

 

 

 

 

 

 

CORNER “D”

CENTER OF GRAVITY

 

 

CORNER “C”

CORNER “A”

 

FRONT

OF

UNIT

24

47 14

49 18

25

FIG. 4 - CENTER OF GRAVITY

CORNER “B”

TABLE 8 - ELECTRICAL DATA

 

 

VOLTAGE

 

 

COND.

SUPPLY

 

MAX.

MAX.

 

 

 

POWER SUP-

LIMITATIONS

COMPRESSOR

AIR

MINIMUM

FUSE

HACR

UNIT

TRANSFORMER

MODEL

FAN

 

1

 

 

BLOWER

CIRCUIT

SIZE,

BREAKER

POWER

SIZE (VA)

DNA

PLY

 

 

 

 

 

MOTOR,

 

 

 

 

 

MOTOR,

AMPACITY

AMPS

SIZE,

FACTOR

3

MIN.

 

MAX.

RLA

LRA

 

 

 

FLA

FLA

 

2

AMPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

018

208/230-1-60

187

 

253

9.0

48.0

1.1

2.2

14.5

20

20

.96

40

024

208/230-1-60

187

 

253

11.5

60.0

1.1

2.2

17.7

25

25

.96

40

030

208/230-1-60

187

 

253

14.7

73.0

1.1

2.2

21.7

30

30

.96

40

036

208/230-1-60

187

 

253

17.3

94.0

1.1

3.5

26.2

35

35

.96

40

042

208/230-1-60

187

 

253

20.5

120.0

1.1

3.5

30.2

40

40

.96

40

048

208/230-1-60

187

 

253

24.4

140.0

1.3

7.0

38.8

50

50

.96

40

060

208/230-1-60

187

 

253

28.9

175.0

1.3

7.0

44.4

60

60

.96

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036

208/230-3-60

187

 

253

10.9

78.0

1.1

3.5

18.2

25

25

.96

75

042

208/230-3-60

187

 

253

14.1

110.0

1.1

3.5

22.2

30

30

.96

75

048

208/230-3-60

187

 

253

14.1

105

1.3

7.0

25.9

35

35

.96

75

060

208/230-3-60

187

 

253

15.5

125

1.3

7.0

29.5

40

40

.96

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036

460-3-60

414

 

504

5.8

40.0

0.6

1.8

9.6

15

15

.96

75

042

460-3-60

414

 

504

7.1

54.0

0.6

1.8

11.2

15

15

.96

75

048

460-3-60

414

 

504

7.1

55.0

0.7

3.5

13.1

20

20

.96

75

060

460-3-60

414

 

504

8.8

66.5

0.7

3.5

15.4

20

20

.96

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036

575-3-60

518

 

630

4.5

32.0

0.4

1.5

7.5

15

15

.96

75

042

575-3-60

518

 

630

5.8

44.0

0.4

1.5

9.1

15

15

.96

75

048

575-3-60

518

 

630

5.7

45.0

0.6

2.8

10.5

15

15

.96

75

060

575-3-60

518

 

630

7.1

50.0

0.6

2.8

12.3

15

15

.96

75

Note; Electrical data based on 104°F outdoor air ambient temperature.

 

1

= Rated in accordance with ARI Standard 110, utilization range “A”.

2 = Dual element, time delay type.

3

= If economizer or motorized damper are to be used, 75 VA is required. Refer to price pages for future details.

Unitary Products Group

7

035-18265-001-A-0202

 

UNIT

DIMENSION

 

SIZE

“A”

“B”

 

 

VENT AIR OUTLET HOOD

018 THRU 042

33 12

18 14

 

 

 

BLOWER

048 AND 060

4112

2338

SERVICE ACCESS

 

 

 

COMPARTMENT PANEL

CONDENSER COIL

GAS SUPPLY 114“ DIA. HOLE

 

 

 

(12“ NPTI CONNECTION)

 

 

 

UNIT CONDENSATE CONNECTION 34“ NPTI B (TRAP RECOMMENDED)

 

 

 

33

4

 

 

 

 

HIGH VOLTAGE CONN.

2 12

 

 

 

 

 

 

 

 

 

 

 

138

DIA. KNOCKOUT

 

 

 

 

 

 

HIGH VOLTAGE CONN.

 

112

5

38

11

 

78

DIA. KNOCKOUT

 

258

 

 

3

GAS SUPPLY 114“ DIA. KNOCKOUT

 

3 12

 

 

12

4

 

 

 

 

 

(12“ NPTI CONNECTION)

 

47 14

 

 

 

 

 

LOW VOLTAGE CONN.

(OVERALL)

 

 

 

 

 

138“ DIA. KNOCKOUT x78“ HOLE

 

 

 

 

HIGH VOLTAGE

87

19 14

 

FRONT

 

 

 

 

CONN. 1332“ DIA.

8

 

 

 

 

 

 

117

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

KNOCKOUT

GAS SUPPLY 158“ DIA. KNOCKOUT

(12“ NPTI CONNECTION)

LOW VOLTAGE CONN. 78“ DIA. KNOCKOUT

A

238 (OVERALL)

REFRIGERANT

CONNECTIONS

COMBUSTION AIR

INLET LOUVERS

49 18

(OVERALL) FRONT

GAS/ELECTRIC CONTROL

SERVICE ACCESS

COMPARTMENT PANEL

All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.

SIDE SUPPLY

 

AIR OPENING

15

 

 

 

458

 

 

 

 

263

4

 

 

14 12

REAR

 

6

CONDENSER

 

 

2838

 

 

 

 

 

 

 

 

COIL

 

 

14 12

 

 

CONDENSATE

BOTTOM SUPPLY

 

 

338

SIDE RETURN

 

 

 

 

 

 

 

 

AIR OPENING

 

DRAIN 34“ NPTI

AIR OPENING

 

 

 

 

 

 

 

 

 

CLEARANCES

 

 

 

 

 

 

(Minimum)

 

 

23

8

 

Front

36"

134

 

 

14

12

 

 

 

 

Back

0"

 

 

 

 

 

Left Side (Filter Access) 24"

15

 

 

15

3 12

Right Side

12"

 

 

 

 

 

 

 

4

 

Below Unit 1

0"

 

28916

 

 

Above Unit 2

36" (For Condenser

12

 

 

3

134

 

 

Air Discharge)

 

 

 

 

1 Units may be installed on combustible floors made from wood or class

 

134

 

 

A, B or C roof covering material.

 

 

 

BOTTOM RETURN

2 Units must be installed outdoors. Overhanging structures or shrubs

 

 

should not obstruct condenser air discharge outlet.

 

 

 

AIR OPENING

NOTE:

A 1" clearance must be provided between any combustible material and the supply air ductwork.

The products of combustion must not be allowed to accumulate within a confined space and recirculate.

FIG. 5 - DIMENSIONS AND CLEARANCES

8

Unitary Products Group

035-18265-001-A-0202

SEQUENCE OF OPERATION

HEATING

When the thermostat calls for “HEAT”, the thermostat terminal “W” is energized, energizing the combustion air blower.

After airflow is established, the air proving switch closes, the hot surface ignitor is energized and the pilot valve opens igniting the pilot flame. The system will try to light the pilot for 90 seconds. After 90 seconds, the pilot valve will close and the system will retry in 5 minutes.

The flame rod senses a flame and de-energizes the ignitor opening the main gas valve and the main burners light.

30 seconds after the main burners light the circulating fan is energized at the heating speed.

When the thermostat is satisfied, terminal “W” is de-energized, de-energizing the ignition system closing the gas valve.

After a 5 second postpurge timing period, the combustion air blower is de-energized and the heat fan off timing begins.

When this field selected heat fan off timing is completed the circulating fan is de-energized.

If the primary, rollout or auxiliary limit switches open, the thermostat and ignition system is de-energized and the gas valve closes. The combustion blower and the circulating fan, at heat speed, are energized.

The combustion blower remains energized for the 5 second postpurge timing period if the primary, rollout or auxiliary limit switches remake the contact (the rollout and auxiliary limit

switches must be manually reset). The circulating fan remains energized for the selected heat delay off timing.

Normal operation of the system resumes.

COOLING

When the thermostat calls for “COOL”, the thermostat terminals “G” and “Y” are energized signaling the compressor and outdoor fan to run.

After a cool fan on delay timing of 2 seconds, the circulating fan is energized at cooling speed.

When the thermostat is satisfied, terminals “G” and “Y” are deenergized, de-energizing the compressor and outdoor fan.

After a cool fan off delay timing of 30 seconds the circulating fan is de-energized.

CIRCULATING FAN

When the thermostat calls for “FAN”, the thermostat terminal “G” is energized signaling the circulating fan to run at the heat speed 2 seconds after the “G” terminal is energized.

If a call for “HEAT” occurs, the circulating fan continues to run at the heat speed.

If a call for “COOL” occurs, the circulating fan switches to cool speed after a 4 second delay.

When the thermostat ends the call for “FAN”, the thermostat terminal “G” is de-energized, de-energizing the circulating fan.

START-UP

PRE-START CHECK LIST

Complete the following checks before starting the unit.

1.Check the type of gas being supplied. Be sure that it is the same as listed on the unit nameplate.

2.Make sure that the vent outlet air hoods has been properly installed.

OPERATING INSTRUCTIONS

1.STOP! Read the information on the unit safety label.

2.Set the thermostat to the “OFF” position.

3.Turn off all electrical power to the unit.

4.DO NOT try to light the burners by hand. This appliance is equipped with an ignition device which automatically lights the burners.

5.Remove the access panel.

6.Turn the gas valve switch to the “OFF” position.

7.Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow “B” in the information on the unit safety label. If you don't smell gas, go to the next step.

8.Turn the gas valve switch to the “ON” position.

9.Replace the control access panel.

10.Turn on all electric power to the unit.

11.Set the thermostat to the desired setting.

12.If the unit will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier.

TO TURN OFF GAS TO UNIT

1.Set the thermostat to the “OFF” position.

2.Turn off all electric power to the appliance if service is to be performed.

3.Remove the control access panel.

4.Turn the gas valve switch to the “OFF” positionDO. NOT

FORCE.

5.Replace the control access panel.

POST-START CHECK LIST (GAS)

After the entire control circuit has been energized and the heating section is operating, make the following checks:

1.Check for gas leaks in the unit piping as well as the supply piping.

Unitary Products Group

9

2. Remove the two (2) #8 screws holding the hot surface pilot assembly in place.
3. Remove the hot surface pilot assembly.
To remove the hot surface ignitor and flame sensor assembly:
1. Remove the clip attaching the ignitor and sensor assembly as shown in Figure 8.
FIG. 8 - IGNITOR AND FLAME SENSOR ASSEMBLY
2. Lift the pilot and sensor from the assembly. Care must be taken not to damage the pilot or sensor when removing this assembly.
Unitary Products Group

035-18265-001-A-0202

2.Check for correct manifold gas pressures. See “Checking Gas Input”.

3.Check the supply gas pressure. It must be within the limits shown on rating nameplate. Supply pressure should be checked with all gas appliances in the building at full fire. At no time should the standby gas line pressure exceed 10.5", nor the operating pressure drop below 4.5" for natural gas units. If gas pressure is outside these limits, contact the local gas utility for corrective action.

MANIFOLD GAS PRESSURE ADJUSTMENT

Small adjustments to the gas flow may be made by turning the pressure regulator adjusting screw on the automatic gas valve. Refer to Figure 6.

2.Remove the burner assembly from the manifold assembly by moving the burner assembly forward, turn at an angle and pull back.

3.Burners are now accessible for service.

HOT SURFACE PILOT INSTRUCTIONS

To check, adjust or remove the hot surface pilot assembly, CLOSE THE MAIN MANUAL SHUT-OFF VALVE AND SHUT OFF ALL POWER TO THE UNIT.

The pilot flame should envelope 3 8 inch of the end of the flame sensor and not contain any yellow color, see Figure 7.

I G N I T O R E L E C T R I C A L M A N U A L G A S C O N N E C T I O N

S W I T C H

( S H O W N I N " O F F P O S I T I O N )

M A N I F O L D

P R E S S U R E T A P

C O N T R O L

E L E C T R I C A L

C O N N E C T I O N G R O U N D

T E R M I N A L

3

8

3 / 8

1 / 2 - 1 4 N P T

( O U T L E T ) FIG. 7 - PROPER FLAME ADJUSTMENT

 

To adjust the pilot flame:

P I L O T G A S

1. Remove the pilot adjustment cover screw.

C O N N E C T I O N

P I L O T

A D J U S T M E N T

L I N E P R E S S U R E

2.Adjust the pilot adjustment screw to achieve the proper pilot flame.

T A P 3. Replace the pilot adjustment cover screw after the pilot flame is set.

To remove the hot surface pilot assembly:

1. Disconnect the wiring from the gas valve to the hot surface

M A N I F O L D P R E S S U RpilotE assembly. A D J U S T M E N T

( R E M O V E C A P )

1 / 2 - 1 4 N P T ( I N L E T )

V E N T P R E S S U R E L I M I T E R

FIG. 6 - GAS VALVE

Adjust as follows:

1.Remove the cap from the valve body. See Figure 6 for location.

2.To decrease the gas pressure, turn the adjusting screw counterclockwise.

3.To increase the gas pressure, turn the adjusting screw clockwise.

NOTE: The correct manifold pressure for natural gas furnaces is 3.5 IWG 0.2. The correct manifold pressure for propane (LP) is 10.0 IWG 0.2.

BURNER INSTRUCTIONS

To check or change the burners, CLOSE THE MAIN MANUAL

SHUT-OFF VALVE AND SHUT OFF ALLPOWER TO THE UNIT.

1. Remove the two (2) #8 screws holding each burner in place.

10

3.After maintenance of the pilot assembly, always measure the resistance across the ignitor. If the resistance is greater than 10 ohms, discard the ignitor and replace it with a new ignitor.

ADJUSTMENT OF TEMPERATURE RISE

° F Temp. Rise =

BTUH Output

(OR) CFM =

BTUH Output

1.08 x CFM

1.08 x ° F Temp. Rise

 

 

The temperature rise (or temperature difference between the return air and the heated air from the furnace) must lie within the range shown on the rating plate and the data in Tables 2 and 3.

After the temperature rise has been determined, the CFM can be calculated as follows:

After about 20 minutes of operation, determine the furnace temperature rise. Take readings of both the return air and the heated air in the ducts about six feet from the furnace where they will not be affected by radiant heat. Increase the blower CFM to decrease the temperature rise; decrease the blower CFM to increase the rise.

DIRECT DRIVE BLOWER

All units have direct drive multi-speed blower motors. Refer to the unit wiring diagram and connect the blower motor for the desired CFM.

CHECKING GAS INPUT

NATURAL GAS

1.Turn off all other gas appliances connected to the gas meter.

2.With the furnace turned on, measure the time needed for one revolution of the hand on the smallest dial on the meter. Atypical gas meter usually has a 1/2 or a 1 cubic foot test dial.

3.Using the number of seconds for each revolution and the size of the test dial increment, find the cubic feet of gas consumed per hour from Table 9.

If the actual input is not within 5% of the furnace rating with allowance being made for the permissible range of the regulator setting, replace the orifice spuds with spuds of the proper size.

NOTE: To find the BTU input, multiply the number of cubic feet of gas consumed per hour by the BTU content of the gas in your particular locality. (Contact your gas company for this information since it varies widely from city to city.)

SECURE OWNER'S APPROVAL

When the system is functioning properly, secure the owner's approval. Show him the location of all disconnect switches and the thermostat. Teach him how to start and stop the unit and how to adjust temperature settings within the limitations of the system. Advise him that the flue exhaust hood surface and the immediate area will experience high temperatures during the heating cycle. All unauthorized personnel and debris must be kept away from this area.

 

 

035-18265-001-A-0202

TABLE 9 - GAS RATECUBIC FEET PER HOUR

 

 

 

Seconds

Size of Test Dial

for One

1/2 cu. ft.

 

1 cu. ft.

Rev.

 

 

 

 

10

180

 

360

12

150

 

300

14

129

 

257

16

113

 

225

18

100

 

200

20

90

 

180

22

82

 

164

24

75

 

150

26

69

 

138

28

64

 

129

30

60

 

120

32

56

 

113

34

53

 

106

36

50

 

100

38

47

 

95

40

45

 

90

42

43

 

86

44

41

 

82

46

39

 

78

48

37

 

75

50

36

 

72

52

35

 

69

54

34

 

67

56

32

 

64

58

31

 

62

60

30

 

60

Example: By actual measurement, it takes 38 seconds for the hand on the 1-cubic foot dial to make a revolution with just a 100,000 BTUH furnace running. Using this information, locate 38 seconds in the first column of Table 9. Read across to the column headed “1 Cubic Foot,” where you will see that 95 cubic feet of gas per hour are consumed by the furnace at that rate. Multiply 95 x 1050 (the BTU rating of the gas obtained from the local gas company). The result is 99,750 BTUH, which is close to the100,000 BTUH rating of the furnace.

Unitary Products Group

11

035-18265-001-A-0202

MAINTENANCE

NORMAL MAINTENANCE

WARNING: Prior to any of the following maintenance procedures, shut off all power to the unit, to avoid personal injury.

Periodic maintenance consists of changing or cleaning filters. Under some conditions, the main burners should be cleaned.

FILTERS - Inspect once a month. Replace Disposable or clean Permanent Type as necessary. DO NOT replace Permanent Type with Disposable.

MOTORS - Indoor and outdoor fan motors, along with the combustion blower are permanently lubricated and require no maintenance.

OUTDOOR COIL - Dirt should not be allowed to accumulate on the outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep the coil clean. Use a brush, vacuum cleaner attachment, or other suitable means. If water is used to clean the coil, be sure that the power to the unit is shut off prior to cleaning.

CAUTION: Exercise care when cleaning the coil so that the coil fins are not damaged.

Do not permit the hot condenser air discharge to be obstructed by overhanging structures or shrubs.

BURNER - At the beginning of each heating season, make a visual check of the main burner flame. If it is not possible to adjust for the proper flame, the burners may need cleaning.

TO CLEAN BURNERS - Remove them from the furnace as explained in “Burner Instructions”. Clean burners with hot water applied along top of the burner.

COMBUSTION AIR DISCHARGE - Visually inspect discharge outlet periodically to insure soot and dirt buildup is not excessive. If necessary, clean to maintain adequate combustion air discharge.

The manufacture recommends that the furnace system be inspected once a year by a qualified service person.

CLEANING FLUE PASSAGES AND HEATING ELEMENTS

With proper combustion adjustment the heating element of a gas fired furnace will seldom need cleaning. If the element should become sooted, it can be cleaned as follows:

1.Remove the burner assembly as outlined in “BURNER INSTRUCTIONS”.

2.Remove the screws securing the restrictor plate to the tube sheet.

3.Using a wire brush on a flexible wand, brush out the inside of each heat exchanger from the burner inlet and flue outlet ends.

4.Brush out the inside of the restrictor plate to the tube sheet.

5.If soot build-up is particularly bad, remove the vent motor and clean the wheel and housing.

6.After brushing is complete, blow all brushed areas with air or nitrogen. Vacuum as needed.

7.Replace parts in the order they were removed in steps 1 thru 3.

12

Unitary Products Group

Checking Supply Air CFM

To check the supply air CFM after the initial balancing has been completed:

1.Remove the two ¼ inch dot plugs in the duct panel.

2.Insert at least 8 inches of ¼ inch tubing into each of these holes for sufficient penetration into the airflow on both sides of the indoor coil.

3.Using an inclined manometer, determine the pressure drop across the dry evaporator coil. Since the moisture on an evaporator coil may vary greatly, measuring the pressure drop across a wet coil under field conditions would be inaccurate. To ensure

035-18265-001-A-0202

a dry coil, the compressors should be deactivated while the test is being run.

4.Knowing the pressure drop across a dry coil, the actual CFM through the unit can be determined from the curve in Coil Delta P vs. Supply Air CFM figure.

WARNING! Failure to properly adjust the total system air quantity can result in extensive system damage.

After readings have been obtained, remove the tubes and reinstall the two ¼ inch plugs removed in Step 1.

NOTE: De-energize the compressors before taking any test measurements to ensure a dry indoor coil.

D1NA Coil Delta P vs Airflow

 

 

 

D1NA018

 

D1NA024

 

D1NA042

 

D1NA048-60

 

 

 

 

 

 

 

 

 

 

 

0.9

 

 

 

 

 

 

 

 

 

 

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1NA036

 

0.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1NA024-30

 

0.6

 

 

 

 

 

 

 

 

D1NA036

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

D1NA042

 

 

 

 

 

 

 

 

 

 

Delta

0.5

 

 

 

 

 

 

 

 

D1NA048-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1NA018

Coil

 

 

 

 

 

 

 

 

 

Linear (D1NA024-30)

0.4

 

 

 

 

 

 

 

 

Linear (D1NA036)

 

 

 

 

 

 

 

 

 

ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear (D1NA042)

 

0.3

 

 

 

 

 

 

 

 

Linear (D1NA048-60)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear (D1NA018)

 

0.2

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

400

600

800

1000

1200

1400

1600

1800

2000

2200

Airflow (CFM)

Unitary Products Group

13

035-18265-001-A-0202

TABLE 10 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA018

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

75

 

65

17.1

19.5

21.9

24.4

26.8

29.3

31.7

32.7

33.7

34.6

35.6

70

13.6

16.2

18.8

21.5

24.1

26.8

29.4

30.6

31.8

33.1

34.3

75

10.1

12.9

15.7

18.6

21.4

24.3

27.1

28.6

30.0

31.5

32.9

80

6.6

9.6

12.7

15.7

18.7

21.8

24.8

26.5

28.2

29.9

31.6

85

-

6.3

9.6

12.8

16.0

19.3

22.5

24.4

26.4

28.3

30.2

90

-

-

6.8

9.9

13.0

16.1

19.3

21.6

24.0

26.4

28.8

95

-

-

-

7.1

10.0

13.0

16.0

18.8

21.7

24.5

27.4

100

-

-

-

-

7.1

9.6

12.0

15.4

18.8

22.3

25.7

105

-

-

-

-

-

6.1

8.0

12.0

16.0

20.0

24.0

110

-

-

-

-

-

-

-

8.6

13.1

17.7

22.2

115

-

-

-

-

-

-

-

5.1

10.3

15.4

20.5

TABLE 11 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA024

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

75

 

65

13.9

16.5

19.0

21.5

24.1

26.6

29.2

29.7

30.3

30.9

31.5

70

9.5

12.5

15.5

18.5

21.5

24.5

27.5

28.2

28.8

29.4

30.1

75

5.2

8.6

12.1

15.5

19.0

22.4

25.9

26.6

27.3

28.0

28.7

80

-

-

8.7

12.5

16.4

20.3

24.2

25.0

25.8

26.5

27.3

85

-

-

5.2

9.6

13.9

18.3

22.6

23.4

24.2

25.1

25.9

90

-

-

-

7.8

11.9

16.1

20.3

21.5

22.7

23.8

25.0

95

-

-

-

6.0

10.0

14.0

18.0

19.5

21.1

22.6

24.2

100

-

-

-

-

8.4

12.1

15.9

17.7

19.5

21.3

23.1

105

-

-

-

-

6.9

10.3

13.8

15.8

17.9

20.0

22.0

110

-

-

-

-

5.3

8.5

11.7

14.0

16.3

18.7

21.0

115

-

-

-

-

-

6.7

9.6

12.2

14.8

17.3

19.9

TABLE 12 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA030

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

75

 

65

13.7

16.9

20.1

23.3

26.6

29.8

33.0

33.5

34.0

34.5

35.0

70

10.8

14.2

17.7

21.1

24.5

28.0

31.4

32.1

32.8

33.5

34.2

75

7.8

11.5

15.2

18.8

22.5

26.2

29.8

30.7

31.6

32.6

33.5

80

-

8.8

12.7

16.6

20.5

24.4

28.2

29.4

30.5

31.6

32.7

85

-

6.1

10.2

14.3

18.4

22.6

26.7

28.0

29.3

30.6

32.0

90

-

-

7.3

11.5

15.7

19.9

24.1

25.9

27.7

29.5

31.3

95

-

-

-

8.6

13.0

17.3

21.6

23.8

26.1

28.3

30.6

100

-

-

-

6.9

10.7

14.5

18.3

21.2

24.0

26.9

29.7

105

-

-

-

5.1

8.4

11.8

15.1

18.5

22.0

25.4

28.9

110

-

-

-

-

6.2

9.0

11.8

15.9

19.9

24.0

28.0

115

-

-

-

-

-

6.2

8.5

13.2

17.9

22.5

27.2

TABLE 13 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA036

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

75

 

65

27.1

28.4

29.7

31.1

32.4

33.7

35.0

35.9

36.8

37.6

38.5

70

23.3

24.8

26.2

27.7

29.2

30.6

32.1

33.5

34.9

36.4

37.8

75

19.5

21.1

22.7

24.4

26.0

27.6

29.2

31.2

33.1

35.1

37.1

80

15.7

17.5

19.2

21.0

22.8

24.5

26.3

28.8

31.3

33.8

36.3

85

11.9

13.8

15.7

17.6

19.6

21.5

23.4

26.5

29.5

32.6

35.6

90

8.6

10.6

12.6

14.6

16.6

18.6

20.6

24.1

27.6

31.1

34.6

95

5.3

7.4

9.5

11.5

13.6

15.7

17.8

21.7

25.7

29.7

33.7

100

-

5.6

7.6

9.6

11.6

13.6

15.6

20.1

24.5

28.9

33.4

105

-

-

5.7

7.6

9.6

11.5

13.5

18.4

23.3

28.2

33.1

110

-

-

-

5.6

7.5

9.4

11.3

16.7

22.1

27.4

32.8

115

-

-

-

-

5.5

7.4

9.2

15.0

20.9

26.7

32.5

14

Unitary Products Group

 

 

 

 

 

 

 

 

 

 

 

035-18265-001-A-0202

TABLE 14 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA042

 

 

 

 

 

 

 

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

 

75

 

 

 

 

65

18.0

19.7

21.4

23.0

24.7

26.3

28.0

29.1

30.2

31.3

 

32.4

 

70

13.4

15.3

17.3

19.3

21.2

23.2

25.2

26.6

28.1

29.6

 

31.1

 

75

8.7

10.9

13.2

15.5

17.8

20.0

22.3

24.2

26.1

28.0

 

29.9

 

80

-

6.6

9.1

11.7

14.3

16.9

19.5

21.7

24.0

26.3

 

28.6

 

85

-

-

5.1

7.9

10.8

13.7

16.6

19.3

21.9

24.6

 

27.3

 

90

-

-

-

6.7

9.3

11.9

14.6

17.4

20.2

23.1

 

25.9

 

95

-

-

-

5.5

7.8

10.2

12.5

15.5

18.5

21.5

 

24.5

 

100

-

-

-

-

6.3

8.0

9.8

12.9

16.1

19.2

 

22.4

 

105

-

-

-

-

-

5.9

7.1

10.3

13.7

16.9

 

20.3

 

110

-

-

-

-

-

-

-

7.8

11.2

14.7

 

18.1

 

115

-

-

-

-

-

-

-

5.2

8.8

12.4

 

16.0

 

TABLE 15 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA048

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

 

75

 

 

 

 

65

20.9

21.8

22.7

23.6

24.4

25.3

26.2

27.4

28.6

29.8

 

31.0

 

70

17.6

18.7

19.7

20.7

21.7

22.7

23.7

25.2

26.6

28.1

 

29.6

 

75

14.4

15.5

16.6

17.8

18.9

20.0

21.2

22.9

24.7

26.4

 

28.2

 

80

11.1

12.4

13.6

14.9

16.1

17.4

18.6

20.7

22.7

24.8

 

26.8

 

85

7.8

9.2

10.6

12.0

13.3

14.7

16.1

18.4

20.8

23.1

 

25.4

 

90

5.8

7.0

8.2

9.3

10.5

11.7

12.9

15.7

18.6

21.5

 

24.4

 

95

-

-

5.8

6.7

7.7

8.6

9.6

13.0

16.5

19.9

 

23.3

 

100

-

-

5.4

6.0

6.7

7.4

8.0

11.6

15.2

18.7

 

22.3

 

105

-

-

-

5.3

5.7

6.1

6.5

10.2

13.9

17.6

 

21.3

 

110

-

-

-

-

-

-

-

8.7

12.6

16.4

 

20.3

 

115

-

-

-

-

-

-

-

7.3

11.3

15.3

 

19.3

 

TABLE 16 - SUPERHEAT CHARGING TABLE FOR MODEL D2NA060

 

 

 

 

 

 

 

OUTDOOR

 

 

SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON

 

 

 

 

TEMPERATURE

 

 

 

 

INDOOR WB TEMPERATURE (F)

 

 

 

 

 

 

(F)

55

57

59

61

63

65

67

69

71

73

 

75

 

 

 

 

65

7.0

9.2

11.4

13.6

15.9

18.1

20.3

21.8

23.2

24.7

 

26.1

 

70

6.1

8.4

10.7

13.0

15.2

17.5

19.8

21.2

22.7

24.1

 

25.6

 

75

5.3

7.6

9.9

12.3

14.6

16.9

19.3

20.7

22.2

23.6

 

25.0

 

80

-

6.8

9.2

11.6

14.0

16.3

18.7

20.2

21.6

23.1

 

24.5

 

85

-

6.0

8.4

10.9

13.3

15.8

18.2

19.6

21.1

22.5

 

23.9

 

90

-

-

6.5

8.7

10.8

12.9

15.1

17.1

19.1

21.1

 

23.1

 

95

-

-

-

6.5

8.3

10.1

11.9

14.5

17.1

19.7

 

22.3

 

100

-

-

-

5.9

7.3

8.6

10.0

12.9

15.8

18.7

 

21.6

 

105

-

-

-

5.3

6.2

7.1

8.0

11.3

14.5

17.7

 

20.9

 

110

-

-

-

-

5.2

5.6

6.1

9.6

13.2

16.7

 

20.2

 

115

-

-

-

-

-

-

-

8.0

11.8

15.7

 

19.6

 

Unitary Products Group

15

035-18265-001-A-0202

TROUBLESHOOTING

NOTE: Before troubleshooting, familiarize yourself with the startup and checkout procedure.

START

. Turn gas supply

 

 

 

Check

 

off

 

 

 

 

. Set thermostat to

 

 

 

. Line voltage power

 

 

 

 

 

. Low voltage

 

SV9501

 

 

 

 

 

NO

 

transformer

 

is powered

 

 

 

 

 

. Main limit

 

(24 VAC nominal)

 

 

 

 

 

 

 

(Auto reset)

 

 

 

 

 

 

 

 

 

 

. Rollout limit

 

 

 

 

 

(Manual reset)

 

 

 

 

 

. Auxilary limit

 

 

 

 

 

(Manual reset)

 

 

 

 

 

. Thermostat

 

 

 

 

 

. Wiring

 

 

 

 

 

. Air proving switch on

 

 

 

 

 

combustion air

 

 

 

 

 

blower system

 

 

 

 

 

. Vent damper (if used)

 

 

 

 

 

is open and end switch

 

 

 

 

 

made

 

 

 

 

 

 

INSET

HSI

TERMINALS

NO

Igniter warms up and glows red

Pilot valves opens

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn gas on.

 

NO

 

Pilot burner lights?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

Main valve opens?

 

NO

YES

System OK

Unplug pilot burner cable, measure voltage at SV9501 HSI

terminals (24 VAC nominal, see inset)

YES

Replace igniter/flame rod assembly

Replace SV9501

Measure voltage to SV9501. Voltage must be at least 19.5 VAC.

YES

Replace igniter/flame rod assembly

Replace igniter/flame rod assembly and retain.

Restart troubleshooting sequence.

Does main valve open?

YES

Discard old igniter/flame rod assembly

Replace

NO SV9501

Check transformer

NO line volt supply

Replace

SV9501 save old

NO igniter/ flame rod assembly for service

16

Unitary Products Group

035-18265-001-A-0202

(See page 18)

 

M1 - 2

SEE

 

DETAIL

 

 

L 2

T2

"A"

DETAIL "A"

OPTIONAL CCH

S / P CONFIGURATION

CCH BLK L1

BLK

T1

D / P CONFIGURATION

CCH BLK

L1

BLK

L 2

FIG. 9 - TYPICAL WIRING DIAGRAM (208/230-1-60 POWER SUPPLY)

FIG. 10 - TYPICAL WIRING DIAGRAM (208/230-3-60 POWER SUPPLY)

Unitary Products Group

17

035-18265-001-A-0202

B

(See page 18)

FIG. 11 - TYPICAL WIRING DIAGRAM (460-3-60 POWER SUPPLY)

B

(See page 18)

FIG. 12 - TYPICAL WIRING DIAGRAM (575-3-60 POWER SUPPLY)

18

Unitary Products Group

035-18265-001-A-0202

TYPICAL WIRING DIAGRAM NOTES (See pages 16 and 17)

TYPICAL WIRING DIAGRAM LEGEND (See pages 16 and 17)

(ALTERNATE)

(ALTERNATE)

FIG. 13 - WIRING DIAGRAM DETAIL “B”

(460 & 575-3-60 POWER SUPPLY) See page 17

Unitary Products Group

19

035-18265-001-A-0202

NOTES

20

Unitary Products Group

 

 

 

 

 

Unitary Products Group

 

 

 

 

 

 

 

 

5005 York Drive, Noman, Oklahoma 73069

 

 

 

 

Subject to change without notice. Printed in U.S.A.

 

035-18265-001-A-0202

Copyright by York International Corporation 2000 All Rights Reserved.

Supersedes: 035-18265-000-A-0801