Johnson Controls R-410A, DNQ024, DNQ030, DNQ036, DNQ042 Installation Manual

...

Download

R-410A AFFINITY™ SERIES

DNQ024-060 2-5 Ton

TABLE OF CONTENTS

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Rigging And Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Ductwork. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Condensate Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power And Control Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 10

Compressors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Phasing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Gas Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Flue Vent Hood. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Blower Speed Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Heating Sequence Of Operation. . . . . . . . . . . . . . . . . . . . 25

Cooling Sequence Of Operations . . . . . . . . . . . . . . . . . . . 27

Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Adjustment of Temperature Rise . . . . . . . . . . . . . . . . . . . 30

Checking Gas Heat Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Natural Gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Typical Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

LIST OF TABLES

1 Unit Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Unit Accessory Weights . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Unit Dimensions Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 Single Stage Physical Data . . . . . . . . . . . . . . . . . . . . . . . 13

8 Two Stage Physical Data . . . . . . . . . . . . . . . . . . . . . . . . 14

9 Natural Gas Pipe Sizing Chart . . . . . . . . . . . . . . . . . . . . 16

10 Propane (LP) Gas Pipe Sizing Chart . . . . . . . . . . . . . . . 16

11 Natural Gas Application Data-Single Stage . . . . . . . . . . 17

12 Natural Gas Application Data-Two Stage . . . . . . . . . . . . 17

13 Propane (LP) Gas Application Data-Single St ag e . . . . . 17

14 Propane (LP) Gas Application Data-Two Stage . . . . . . . 17

15 Side Duct Application . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

16 Bottom Duct Application . . . . . . . . . . . . . . . . . . . . . . . . . 21

17 Additional Static Resistance . . . . . . . . . . . . . . . . . . . . . . 24

18 Indoor Blower Specifications . . . . . . . . . . . . . . . . . . . . . . 25

19 Delay Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

20 Ignition Control Board Flash Co de s . . . . . . . . . . . . . . . . 27

21 Gas Rate Cubic Feet Per Hour . . . . . . . . . . . . . . . . . . . . 30

LIST OF FIGURES

1 Component Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Dimensions Front and Bottom . . . . . . . . . . . . . . . . . . . . . 8

5 Dimensions Back and Bottom . . . . . . . . . . . . . . . . . . . . . 8

6 Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7 Typical Field Control Wiring Diagram Single Stage

Thermostat-Single Stage Gas Heat . . . . . . . . . . . . . . . . 11

8 Typical Field Control Wiring Diagram Single Stage

Thermostat-Two Stage Gas Heat . . . . . . . . . . . . . . . . . 11

9 Typical Field Control Wiring Diagram Two Stage

Thermostat-Two Stage Gas Heat . . . . . . . . . . . . . . . . . 12

General

YORK® Affinity Model DNQ 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 single or two stage gas-fired heaters have spark to pilot ignition. The tubular heat exchangers are aluminized steel.

The refrigerant system is fully charged with R-410A Refrigerant, and is tested and factory sealed.

10 Typical Field Power Wiring Diag r am . . . . . . . . . . . . . . . 12

11 External Supply Connection External Shut-Off . . . . . . . 15

12 Flue Vent Outlet Air Hood . . . . . . . . . . . . . . . . . . . . . . . 16

13 Control Board Speed Tap Location . . . . . . . . . . . . . . . . 25

14 Single Stage Gas Valve Front . . . . . . . . . . . . . . . . . . . . 29

15 Two Stage Gas Valve Front . . . . . . . . . . . . . . . . . . . . . . 29

16 Single Stage Gas Valve Rear . . . . . . . . . . . . . . . . . . . . 29

17 Two Stage Gas Valve Rear . . . . . . . . . . . . . . . . . . . . . . 29

18 Proper Flame Adjustment . . . . . . . . . . . . . . . . . . . . . . . 29

19 R-410A Quick Reference Guide . . . . . . . . . . . . . . . . . . 43

Safety Considerations

This is a safety alert symbol . When you see this symbol on labels or in manuals, be alert to the potential for personal injury.

Understand and pay particular attention the signal words

DANGER, WARNING or CAUTION. DANGER indicates an imminently hazardous situation, which,

if not avoided, will result in death or serious injury WARNING indicates a potentially hazardous situation, which,

if not avoided, could result in death or serious injury CAUTION indicates a potentially hazardous situation, which, if

not avoided may result in minor or moderate injury used to alert against unsafe practices and hazards involving only property damage.

ISO 9001

Certified Quality

Management System

. It is also

437758-YIM-A-0409

Improper installation may create a condition where the operation of the product could cause personal injury or property damage. Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for assistance or for additional information, consult a qualified contractor, installer or service agency.

This product must be installed in strict compliance with the installation instructions and any applicable local, state and national codes including, but not limited to building, electrical, and mechanical codes.

Before performing service or maintenance operations on unit, turn off main power switch to unit. Electrical shock could cause personal injury. Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier.

This system uses R-410A Refrigerant which operates at higher pressures than R-22. No other refrigerant may be used in this system. Gage sets, hoses, refrigerant containers and recovery systems must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer. Failure to use R-410A compatible servicing equipment may result in property damage or injury.

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, or service this equipment. Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters.

Observe all precautions in the literature, labels, and tags accompanying the equipment whenever working on air conditioning equipment. Be sure to follow all other applicable safety precautions and codes including ANSI Z223.1 or CSAB149.1- latest edition.

Wear safety glasses and work gloves. Use quenching cloth and have a fire extinguisher available during brazing operations.

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.

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.

The furnace and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing at pressures in excess of 1/2 PSIG.

Pressures greater than 1/2 PSIG will cause gas valve damage resulting in a hazardous condition. If it is subjected to a pressure greater than 1/2 PSIG, the gas valve must be replaced.

The furnace must be isolated 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

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: a. Do not try to light any appliance. b. Do not touch any electrical switch; do not use any

phone in your building.

c. Immediately call your gas supplier from a neighbor’s

phone. Follow the gas supplier’s instructions.

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

department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

2 Johnson Controls Unitary Products

Reference

Additional information is available in the following reference forms:

• Technical Guide - DNQ024-060, 333491

• General Installation - DNQ024-060, 437758

Renewal Parts

Contact your local York

parts distribution center for authorized

replacement parts.

Approvals

Design certified by CSA as follows:

1. For use as a cooling only unit, cooling unit wi th supplemental electric heat or a forced air furnace.

2. For outdoor installation only.

3. For installation on combustible material and may be installed directly on combustible flooring or, in the U.S., on wood flooring or Class A, Class B or Class C roof covering materials.

4. For use with natural gas (convertible to LP with kit).

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.

Nomenclature

437758-YIM-A-0409

Improper installation may create a condition where the operation of the product could cause personal injury or property damage.

This system uses R-410A Refrigerant which operates at higher pressures than R-22. No other refrigerant may be used in this system.

Product Category

D = Single Package Air Conditioner

Product Generation

1 = 1st Generation 2 = 2nd Generation

NQ = R-410A 14 SEER, 12 EER

D 1 036 036 06

Product Identifier

Gas Heat/Electric

Factory Installed Gas Heat

N = Single Stage D = Two Stage

Nominal Cooling Capacity (MBH)

024 = 24,000 BTUH 030 = 30,000 BTUH 036 = 36,000 BTUH

Installation

Installation Safety Information

Read these instructions before continuing this appliance installation. This is an outdoor combination heating and cooling unit. The installer must assure that these instructions are made available to the consumer and with instructions to retain them for future reference.

1. Refer to the unit rating plate for the approved type of gas for this product.

2. Install this unit only in a location and position as specified on Page 5 of these instructions.

3. Never test for gas leaks with an open flame. Use commercially available soap solution made specifically for the detection of leaks when checking all connections, as specified on Pages 3 and 16 of these instructions.

4. Always install furnace to operate within the furnace's intended temperature-rise range with the duct system and within the allowable external static pressure range, as specified on the unit name/rating plate, specified on Page 17 of these instructions.

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

Voltage Code

06 = 208/230-1-60 25 = 208/230-3-60 46 = 460-3-60

Nominal Gas Heating Output Capacity

(Nominal Low Gas Heat Output Capacity)

036 = 36,000 BTUH 056 = 56,000 BTUH (36,400 BTUH) 065 = 65,000 BTUH 072 = 72,000 BTUH (46,800 BTUH) 090 = 90,000 BTUH (56,160 BTUH)

042 = 42,000 BTUH 048 = 48,000 BTUH 060 = 60,000 BTUH

FIRE OR EXPLOSION HAZARD Failure to follow the safety warning exactly could result

in serious injury, death or property damage. Never test for gas leaks with an open flame. use a

commercially available soap solution made specifically for the detection of leaks to check all connections. A fire or explosion may result causing property damage, personal injury or loss of life.

Limitations

These units must be installed in accordance with the following: In U.S.A.:

1. National Electrical Code, ANSI/NFPA No. 70 - Latest Edition

2. National Fuel Gas Code, ANSI Z223.1 - Latest Edition

3. Gas-Fired Central Furnace Standard, ANSI Z21.47a. Latest Edition

4. Local building codes, and

5. Local gas utility requirements

110 = 110,000 BTUH (70,200 BTUH)

Johnson Controls Unitary Products 3

437758-YIM-A-0409

In Canada:

1. Canadian Electrical Code, CSA C22.1

2. Installation Codes, CSA - B149.1.

3. Local plumbing and waste water codes, and

4. Other applicable local codes. Refer to unit application data found in this document. After installation, gas fired units must be adjusted to obtain a

temperature rise within the range specified on the unit rating plate.

Blow-Through Design With

Reliable Aluminized Steel Tubular Heat Exchangers

Long Lasting Powder

Paint Finish

Rear and Bottom Return Air

and Supply Airduct Openings

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

Size of unit for proposed installation should be based on heat loss/heat gain calculation made according to the methods of Air Conditioning Contractors of America (ACCA).

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

Direct Drive

Condenser Fan Motor

Highly Efficient Enhanced Copper

Tube/Aluminum Fin Evaporator Coil

Highly Efficient Enhanced Copper Tube/Enhanced Aluminum Fin

OR Micro-Channel Aluminum Tube/Aluminum Fin Condenser

Decorative Louvered Coil Guard

(Except 5 Ton which ships with a

“Wire Form” Coil Guard)

High Efficiency

Compressor Rigidly

Mounted

Heavy Gauge

Removable Base Rails

Direct Drive Blower Motor With

Slide-Out Blower Assembly

Figure 1: Component Location Table 1: Unit Limitations

Size

(Tons)

024

(2.0)

030

(2.5)

036

(3.0)

042

(3.5)

048

(4.0)

060

(5.0)

Unit Voltage

208/230-1-60 187 252 125 208/230-1-60 187 252 115

208/230-3-60 187 252 115

460-3-60 432 504 115 208/230-1-60 187 252 115 208/230-3-60 187 252 115

460-3-60 432 504 115 208/230-1-60 187 252 125 208/230-3-60 187 252 125

460-3-60 432 504 125 208/230-1-60 187 252 115 208/230-3-60 187 252 115

460-3-60 432 504 115 208/230-1-60 187 252 125 208/230-3-60 187 252 125

460-3-60 432 504 125

Power Draft Motor

Pilot Assembly

High Grade Aluminized In-Shot Burners

Low Voltage Terminal Block

Self-Diagnostic Controls

Automatic Gas Valve (1/2" - NPTF)

High Voltage

Terminal Block

Unit Limitations

Applied Voltage Outdoor DB Temp

Min Max Max (°F)

4 Johnson Controls Unitary Products

437758-YIM-A-0409

Location

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

1. Unit is designed for outdoor installation only.

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

3. Suitable for mounting on roof curb.

4. 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.

5. Roof structures must be able to support the weight of the unit and its options/accessories. Unit must be installed on a solid, level roof curb or appropriate angle iron frame.

6. Maintain level tolerance to 1/8” across the entire width and length of unit.

Excessive exposure of this furnace to contaminated combustion air may result in equipment damage or personal injury. Typical contaminates include: permanent wave solution, 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.

codes. Refer to Table 5 for clearances required for combustible construction, servicing, and proper unit operation.

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

Rigging And Handling

Exercise care when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig the unit by attaching chain or cable slings to the lifting holes provided in the base rails. Spreader bars, whose length exceeds the largest dimension across the unit, MUST be used across the top of the unit.

If a unit is to be installed on a roof curb other than a York® roof curb, gasketing must be applied to all surfaces that come in contact with the unit underside.

Before lifting, make sure the unit weight is distributed equally on the rigging cables so it will lift evenly.

Units may be moved or lifted with a forklift. Slotted openings in the base rails are provided for this purpose.

Clearances

All units require particular clearances for proper operation and service. Installer must make provisions for adequate combustion and ventilation air in accordance with section 5.3 of Air for Combustion and Ventilation of the National Fuel Gas Code, ANSI Z223.1 – Latest Edition (in U.S.A.), or Sections 7.2,

7.3, or 7.4 of Gas Installation Codes, CSA-B149.1 (in Canada) -

Latest Edition, and/or applicable provisions of the local building

Johnson Controls Unitary Products 5

All panels must be secured in place when the unit is lifted.

The condenser coils should be protected from rigging cable damage with plywood or other suitable material.

437758-YIM-A-0409

"D"

FRONT

UNIT

"A"

49-1/8

Figure 2: Unit 4 Point Load Weight Table 2: Weights and Dimensions

Size

(Tons)

024

(2.0)

030

(2.5)

036

(3.0)

042

(3.5)

048

(4.0)

060

(5.0)

Weight (lbs.) Center of Gravity 4 Point Load Location (lbs.)

ShippingOperatingX YABCD

395 390 20 24.5 113 81 82 114

430 425 20 24.25 122 88 90 125

435 430 20 24.25 123 89 91 127

490 485 20 24 138 99 104 144

495 490 20 24 139 100 105 146

535 530 20 24 150 108 114 158

CENTER OF

GRAVITY

"C"

"B"

47-1/4

Table 3: Unit Accessory Weights

Unit Accessory Model

Add Economizer All 45 40

Shipping Operating

Weight (lbs.)

6 Johnson Controls Unitary Products

GAS SUPPLY

1-1/4" DIAMETER HOLE

(1/2" NPTF CONNECTION)

UNIT CONDENSATE CONNECTION 3/4" NPTF (TRAP RECOMMENDED)

HIGH VOLTAGE

CONN. 1-3/8" DIA.

KNOCKOUT

GAS SUPPLY

1-1/4" DIA. KNOCKOUT

1/2" NPTF CONNECTION)

LOW VOLTAGE

CONN.1-3/8" DIA.

KNOCKOUT x 7/8" HOLE

VENT AIR OUTLET HOOD

BLOWER SERVICE ACCESS

COMPARTMENT PANEL

3-3/4

2-1/2

47-1/4

(OVERALL)

1-1/2

3-1/3

5-3/8

2-5/8

CONDENSER COIL

12-3/4

49-1/8

(OVERALL)

437758-YIM-A-0409

2-3/8

REFRIGERANT

CONNECTIONS

COMBUSTION AIR

INLET LOUVERS

FRONT

GAS/ELECTRIC CONTROL

SERVICE ACCESS

COMPARTMENT PANEL

Figure 3: Unit Dimensions Table 4: Unit Dimensions Front

Unit Size

024, 030, 036 33-1/2 18-1/4 042, 048, 060 41-1/2 23-1/8

Table 5: Unit Clearances1

Direction

Top Front 36 Left 24 Rear 0 Bottom

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

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

3. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet.

4. Units may be installed on combustable floors made from wood or class A, B or C roof covering materials.

“A” “B”

Distance

(in.)

36 Right 12

Dimensions

Direction

Distance

(in.)

Johnson Controls Unitary Products 7

437758-YIM-A-0409

HIGH VOLTAGE

CONN. 1-3/32"

DIA. KNOCKOUT

8-7/8

11-7/8

19-1/4

FRONT

GAS SUPPLY 1-5/8"

DIA. KNOCKOUT (1/2"

NPTF CONNECTION)

LOW VOLTAGE

CONN. 7/8" DIA.

KNOCKOUT

CONDENSATE

DRAIN 3/4" NPTF

26-3/4

Figure 4: Dimensions Front and Bottom

CONDENSER

BOTTOM SUPPLY

AIR OPENING

COIL

SIDE SUPPLY

AIR OPENING

14-1/2

28-3/8

14-1/2

4-5/8

BACK

3-3/8

SIDE RETURN

AIR OPENING

1-3/4

Figure 5: Dimensions Back and Bottom

8 Johnson Controls Unitary Products

28-9/16

3-1/2

1-3/4

BOTTOM RETURN

1-3/4

AIR OPENING

14-1/2

4-1/4

42-2/3

40-3/4

17-5/8

RECOMMENDED

DUCT SIZE

17-1/2" x 16-3/4"

17-1/4

437758-YIM-A-0409

45-1/8

43-1/4

OPENING FOR

RETURN AIR DUCT

Figure 6: Roof Curb

3-1/2

Ductwork

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 in Step 2).

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 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.

NOTE: Be sure to note supply and return openings.

OPENING FOR

SUPPLY AIR DUCT

RECOMMENDED

DUCT SIZE

17-1/8" x 21-1/2"

Refer to Figures 4 and 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 or filter racks. It is the responsibility of the installer to secure a filter in the return air ductwork or install a Filter/Frame Kit (1FF0110, 1FF0112 or 1FF0114).

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

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; this is especially important since this unit is used for both heating and cooling.

1. 8” Roof Curb also available.

Johnson Controls Unitary Products 9

437758-YIM-A-0409

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 (3/4” NPTF) to spill into an open drain.

Hand tighten only.

Service Access

Access to all serviceable components is provided at the following locations:

• Blower compartment access panel

• Gas control/electrical access panel

• Refrigerant connections

Refer to Figure 3 for location of these access locations and minimum clearances in Table 5.

Wear safety glasses and gloves when handling refrigerants. Failure to follow this warning can cause serious personal injury.

Refer to Figure 19 for the R-410A Quick Reference Guide.

Thermostat

The room thermostat should be located on an inside wal l 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. Color coded insulated wires (minimum #18 AWG) should be used to connect thermostat to unit. See Figures 7 thru 10.

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 6.

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 Figures 7 thru 10 for typical field wiring and to the appropriate unit wiring diagram for control circuit and power wiring information.

10 Johnson Controls Unitary Products

** = Minimum wire size of 18 AWG wire should be used for all field installed 24 volt wire.

THERMOSTAT

UNIT CONTROL BOARD

TERMINAL STRIP

437758-YIM-A-0409

NOTE: HEAT ANTICIPATOR SHOULD BE SET AT 0.35 AMPS FOR ALL MODELS.

PROGRAMMABLE

THERMOSTAT ONLY

Figure 7: Typical Field Control Wiring Diagram Single Stage Thermostat-Single Stage Gas Heat

NOTE: HEAT ANTICIPATOR SHOULD BE SET AT 0.35 AMPS FOR ALL MODELS.

** = Minimum wire size of 18 AWG wire should be used for all field installed 24 volt wire.

THERMOSTAT

UNIT CONTROL BOARD

TERMINAL STRIP

* *

Y Y

24 VOLT

TRANSFORMER

24 VOLT

TRANSFORMER

PROGRAMMABLE

THERMOSTAT ONLY

Figure 8: Typical Field Control Wiring Diagram Single Stage Thermo stat-Two Stage Gas Heat

Johnson Controls Unitary Products 11

437758-YIM-A-0409

** = Minimum wire size of 18 AWG wire should be used for all field installed 24 volt wire.

THERMOSTAT

UNIT CONTROL BOARD

TERMINAL STRIP

* *

NOTE: HEAT ANTICIPATOR SHOULD BE SET AT 0.35 AMPS FOR ALL MODELS.

Y Y

PROGRAMMABLE

THERMOSTAT ONLY

Figure 9: Typical Field Control Wiring Diagram Two Stage Thermo stat-Two Stage Gas Heat

24 VOLT

TRANSFORMER

Figure 10: Typical Field Power Wiring Diagram Table 6: Electrical Data

Size

(Tons)

024

(2.0)

030

(2.5)

036

(3.0)

042

(3.5)

048

(4.0)

060

(5.0)

Volt

208/230-1-60 8.3 43 13 1.4 4.3 16.1 20 208/230-1-60 14.1 73 22 1.4 6.8 25.8 35

208/230-3-60 8.9 58 14 1.4 6.8 19.3 25

460-3-60 4.2 28 7 0.8 3.4 9.5 15 208/230-1-60 14.1 77 22 1.4 6.8 25.8 35 208/230-3-60 9.0 71 14 1.4 6.8 19.5 25

460-3-60 5.6 38 9 0.8 3.4 11.2 15 208/230-1-60 21.8 105 34 1.7 9.1 38.1 50 208/230-3-60 14.1 95 22 1.7 9.1 28.4 35

460-3-60 6.4 45 10 0.9 4.6 13.5 15 208/230-1-60 20.5 115 32 1.7 9.1 36.4 45 208/230-3-60 16.0 120 25 1.7 9.1 30.8 40

460-3-60 7.7 50 12 0.9 4.6 15.1 20 208/230-1-60 25.0 134 39 2.8 9.1 43.2 60 208/230-3-60 15.9 110 25 2.8 9.1 31.8 40

460-3-60 7.7 52 12 1.4 4.6 15.6 20

Compressors

(each)

RLA LRA MCC FLA FLA

OD Fan

Motors

(each)

1. Minimum Circuit Ampacity.

2. Maximum Over Current Protection per standard UL 1995.

3. Fuse or HACR circuit breaker size installed at factory or field installed.

Supply Blower

Motor

MCA

(Amps)

Max

Fuse

Breaker

Size

(Amps)

12 Johnson Controls Unitary Products

437758-YIM-A-0409

Table 7: Single Stage Physical Data

Component

Nominal Tonnage 2.0 2.5 3.0 3.5 4.0 5.0

ARI COOLING PERFORMANCE

Gross Capacity @ ARI A point (Btu) 24.0 29.8 35.7 43.5 49.6 56.8* ARI net capacity (Btu) 23.5 29.0 34.5 42.0 48.0 55.0* EER 12.0 12.0 12.0 12.0 12.0 12.0* SEER 14.0 14.0 14.0 14.0 14.0 14.0* Nominal CFM 800 900 1100 1400 1500 1550 System power (KW) 2.0 2.4 2.9 3.5 4.0 4.6 Refrigerant type R-410A R-410A R-410A R-410A R-410A R-410A Refrigerant charge (lb-oz) 3-8 3-15 4-4 5-4 5-0 6-5

ARI HEATING PERFORMANCE

Heating model N036 N056 N036 N056 N036 N056 N072 N065 N090 N065 N090 N110 N065 N090 N110 Heat input (K Btu) 45 70 45 70 45 70 90 80 108 80 108 135 80 108 135 Heat output (K Btu) 36 56 36 56 36 56 72 64 87 64 87 108 64 87 108 AFUE % 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 Steady state efficiency (%) 808080808080808080808080808080 No. burners 232323434345345 No. stages 111111111111111 Temperature Rise Range (ºF) 25-55 30-60 25-55 30-60 25-55 25-55 30-60 25-55 45-75 25-55 35-65 45-75 25-55 35-65 45-75 Gas Limit Setting (ºF) 140 160 140 160 140 160 160 140 160 150 175 160 150 175 160 Gas piping connection (in.) 1/2 1/2 1/2 1/2 1/2 1/2

DIMENSIONS (inches)

Length 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8 Width 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4 Height 33 1/2 33 1/2 33 1/2 41 1/2 41 1/2 41 1/2

OPERATING WT. (lbs.) 390 425 430 485 490 530

COMPRESSORS

Type Recip 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Quantity 1 1 1 1 1 1

CONDENSER COIL DATA

Face area (Sq. Ft.) 7.9 11.9 11.9 15 15 15 Rows 11111 1 Fins per inch 23 23 23 23 23 23 Tube diameter (in.) 0.71 / 18 0.71 / 18 0.71 / 18 0.71 / 18 0.71 / 18 0.98 / 25 Circuitry Type 2-pass 2-pass 2-pass 2-pass 2-pass 2-pass

EVAPORATOR COIL DATA

Face area (Sq. Ft.) 3.4 3.4 3.4 4.4 4.4 4.4 Rows 23333 4 Fins per inch 15 13 13 16 16 13 Tube diameter 3/8 3/8 3/8 3/8 3/8 3/8 Circuitry Type Interlaced Interlaced Interlaced Interlaced Interlaced Interlaced Refrigerant control TXV TXV TXV TXV TX V TXV

CONDENSER FAN DATA

Quantity 1 1 1 1 1 1 Fan diameter (Inch) 22 22 22 22 22 22 Type Prop Prop Prop Prop Prop Prop Drive type Direct Direct Direct Direct Direct Direct No. speeds 1 1 1 1 1 1 Number of motors 1 1 1 1 1 1 Motor HP each 1/4 1/4 1/4 1/3 1/3 1/3 RPM 1100 1100 1100 1100 1100 1100 Nominal total CFM 2400 2400 2400 3200 3200 3200

DIRECT DRIVE EVAP FAN DATA

Quantity 1 1 1 1 1 1 Fan Size (Inch) 10 x 8 10 x 8 11 x 10 12 x 11 12 x 11 12 x 11 Type Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal Motor HP each 1/2 3/4 3/4 1 1 1 RPM Variable Variable Variable Variable Variable Variable Frame size 48 48 48 48 48 48

FILTERS

Quantity - Size 1 - 20 x 20 x 1 1 - 20 x 20 x 1 1 - 20 x 20 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1

DNQ024 DNQ030 DNQ036 DNQ042 DNQ048 DNQ060

Models

* Rating established with a “Wire Form” coil guard which ships as standard.

Johnson Controls Unitary Products 13

437758-YIM-A-0409

Table 8: Two Stage Physical Data

Component

Nominal Tonnage 2.0 2.5 3.0 3.5 4.0 5.0

ARI COOLING PERFORMANCE

ARI HEATING PERFORMANCE

Heating model D056 D056 D056 D072 D090 D090 D110 D090 D110 Heat input (K Btu) 70/45.5 70/45.5 70/45.5 90/58.5 108/70.2 108/70.2 135/87.8 108/70.2 135/87.8 Heat output (K Btu) 56/36.4 56/36.4 56/36.4 72/46.8 87/56.2 87/56.2 108/70.2 87/56.2 108/70.2 AFUE % 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 Steady state efficiency (%) 80 80 80 80 80 80 80 80 80 No. burners 3 3 3 4 4 4 5 4 5 No. stages 2 2 2 2 2 2 2 2 2 Temperature Rise Range (ºF) 30-60 30-60 25-55 30-60 45-75 35-65 45-75 35-65 45-75 Gas Limit Setting (ºF) 160 160 160 160 175 175 170 175 170 Gas piping connection (in.) 1/2 1/2 1/2 1/2 1/2 1/2

DIMENSIONS (inches)

Length 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8 Width 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4 Height 33 1/2 33 1/2 33 1/2 41 1/2 41 1/2 41 1/2

OPERATING WT. (lbs.) 390 425 430 485 490 530

COMPRESSORS

Type Recip 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Quantity 1 1 1 1 1 1

CONDENSER COIL DATA

Face area (Sq. Ft.) 7.9 11.9 11.9 15 15 15 Rows 1 1 1 1 1 1 Fins per inch 23 23 23 23 23 23 Tube diameter (in.) 0.71 / 18 0.71 / 18 0.71 / 18 0.71 / 18 0.71 / 18 0.98 / 25 Circuitry Type 2-pass 2-pass 2-pass 2-pass 2-pass 2-pass

EVAPORATOR COIL DATA

Face area (Sq. Ft.) 3.4 3.4 3.4 4.4 4.4 4.4 Rows 2 3 3 3 3 4 Fins per inch 15 13 13 16 16 13 Tube diameter 3/8 3/8 3/8 3/8 3/8 3/8 Circuitry Type Interlaced Interlaced Interlaced Interlaced Interlaced Interlaced Refrigerant control TXV TXV TXV TXV TXV TXV

CONDENSER FAN DATA

DIRECT DRIVE EVAP FAN DATA

FILTERS

Quantity - Size 1 - 20 x 20 x 1 1 - 20 x 20 x 1 1 - 20 x 20 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1

DNQ024 DNQ030 DNQ036 DNQ042 DNQ048 DNQ060

Models

* Rating established with a “Wire Form” coil guard which ships as standard.

14 Johnson Controls Unitary Products

+ 30 hidden pages

Johnson Controls R-410A, DNQ024, DNQ030, DNQ036, DNQ042 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual