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2

REPLACEMENT PARTS

O

RDERING

 P

ARTS

When reporting shortages or damages, or ordering repair
parts, give the complete unit model and serial numbers as
stamped on the unit’s nameplate.

Replacement parts for this appliance are available through
your contractor or local distributor. For the location of your
nearest distributor, consult the white business pages, the
yellow page section of the local telephone book or contact:

CONSUMER AFFAIRS

DAIKIN NORTH AMERICA LLC

7401 SECURITY WAY

HOUSTON, TEXAS 77040

855-770-5678

SAFETY INSTRUCTIONS

T

O

 T

HE

 I

NSTALLER

Before installing this unit, please read this manual to
familiarize  yourself on the specific items which must be
adhered to, including maximum external static pressure to
unit, air temperature rise, minimum or maximum CFM and
motor speed connections.

Keep this literature in a safe place for future reference.

I

F

 

THE

 

INFORMATION

 

IN

 

THESE

 

INSTRUCTIONS

 

IS

 

NOT

 

FOLLOWED

 

EXACTLY

A

 

FIRE

 

OR

 

EXPLOSION

 

MAY

 

RESULT

 

CAUSING

 

PROPERTY

DAMAGE

PERSONAL

 

INJURY

 

OR

 

LOSS

 

OF

 

LIFE

.

D

O

 

NOT

 

STORE

 

OR

 

USE

 

GASOLINE

 

OR

 

OTHER

 

FLAMMABLE

 

VAPORS

 

AND

 

LIQUIDS

 

IN

 

THE

 

VICINITY

 

OF

 

THIS

 

OR

 

ANY

 

OTHER

 

APPLIANCE

.

D

O

 

NOT

 

TRY

 

TO

 

LIGHT

 

ANY

 

APPLIANCE

.

D

O

 

NOT

 

TOUCH

 

ANY

 

ELECTRICAL

 

SWITCH

DO

 

NOT

 

USE

 

ANY

 

PHONE

 

IN

 

YOUR

 

BUILDING

.

I

MMEDIATELY

 

CALL

 

YOUR

 

GAS

 

SUPPLIER

 

FROM

 

A

 

NEIGHBOR

S

 

PHONE

. F

OLLOW

 

THE

 

GAS

 

SUPPLIER

S

 

INSTRUCTIONS

.

I

F

 

YOU

 

CANNOT

 

REACH

 

YOUR

 

GAS

 

SUPPLIER

CALL

 

THE

 

FIRE

 

DEPARTMENT

.

I

NSTALLATION

 

AND

 

SERVICE

 

MUST

 

BE

 

PERFORMED

 

BY

 

A

 

QUALIFIED

 

INSTALLER

SERVICE

 

AGENCY

 

OR

 

THE

 

GAS

 

SUPPLIER

.

WHAT TO DO IF YOU SMELL GAS:

WARNING

S

HOULD

 

OVERHEATING

 

OCCUR

 

OR

 

THE

 

GAS

 

SUPPLY

 

FAIL

 

TO

 

SHUT

 

OFF

TURN

 

OFF

 

THE

 

MANUAL

 

GAS

 

SHUTOFF

 

VALVE

 

EXTERNAL

 

TO

 

THE

FURNACE

 

BEFORE

 

TURNING

 

OFF

 

THE

 

ELECTRICAL

 

SUPPLY

.

WARNING

S

HEET

 

METAL

 

PARTS

SCREWS

CLIPS

 

AND

 

SIMILAR

 

ITEMS

 

INHERENTLY

 

HAVE

 

SHARP

 

EDGES

AND

 

IT

 

IS

 

NECESSARY

 

THAT

 

THE

 

INSTALLER

 

AND

 

SERVICE

 

PERSONNEL

 

EXERCISE

 

CAUTION

.

CAUTION

D

O

 

NOT

 

CONNECT

 

TO

 

OR

 

USE

 

ANY

 

DEVICE

 

THAT

 

IS

 

NOT

 

DESIGN

 

CERTIFIED

 

BY

 D

AIKIN

 

FOR

 

USE

 

WITH

 

THIS

 

UNIT

. S

ERIOUS

 

PROPERTY

 

DAMAGE

PERSONAL

 

INJURY

REDUCED

 

UNIT

 

PERFORMANCE

 

AND

/

OR

 

HAZARDOUS

 

CONDITIONS

 

MAY

 

RESULT

 

FROM

 

THE

 

USE

 

OF

 

SUCH

 

NON

-

APPROVED

 

DEVICES

.

WARNING

T

HIS

 

PRODUCT

 

CONTAINS

 

OR

 

PRODUCES

 

A

 

CHEMICAL

 

OR

 

CHEMICALS

 

WHICH

 

MAY

 

CAUSE

 

SERIOUS

 

ILLNESS

 

OR

 

DEATH

 

AND

 

WHICH

 

ARE

KNOWN

 

TO

 

THE

 S

TATE

 

OF

 C

ALIFORNIA

 

TO

 

CAUSE

 

CANCER

BIRTH

 

DEFECTS

 

OR

 

OTHER

 

REPRODUCTIVE

 

HARM

.

WARNING

T

O

 

AVOID

 

PROPERTY

 

DAMAGE

PERSONAL

 

INJURY

 

OR

 

DEATH

DO

 

NOT

 

USE

 

THIS

 

UNIT

 

IF

 

ANY

 

PART

 

HAS

 

BEEN

 

UNDER

 

WATER

. I

MMEDIATELY

 

CALL

 

A

 

QUALIFIED

 

SERVICE

 

TECHNICIAN

 

TO

 

INSPECT

 

THE

 

FURNACE

 

AND

TO

 

REPLACE

 

ANY

 

PART

 

OF

 

THE

 

CONTROL

 

SYSTEM

 

AND

 

ANY

 

GAS

CONTROL

 

HAVING

 

BEEN

 

UNDER

 

WATER

.

WARNING

T

HIS

 

UNIT

 

MUST

 

NOT

 

BE

 

USED

 

AS

 

A

 “

CONSTRUCTION

 

HEATER

” 

DURING

 

THE

 

FINISHING

 

PHASES

 

OF

 

CONSTRUCTION

 

ON

 

A

 

NEW

 

STRUCTURE

. T

HIS

 

TYPE

 

OF

 

USE

 

MAY

 

RESULT

 

IN

 

PREMATURE

 

FAILURE

 

OF

 

THE

 

UNIT

 

DUE

 

TO

EXTREMELY

 

LOW

 

RETURN

 

AIR

 

TEMPERATURES

 

AND

 

EXPOSURE

 

TO

CORROSIVE

 

OR

 

VERY

 

DIRTY

 

ATMOSPHERES

.

WARNING

HIGH VOLTAGE !

D

ISCONNECT

 

ALL

 

POWER

 

BEFORE

 

SERVICING

 

OR

 

INSTALLING

 

THIS

 

UNIT

. M

ULTIPLE

 

POWER

 

SOURCES

 

MAY

 

BE

 

PRESENT

. F

AILURE

 

TO

 

DO

 

SO

 

MAY

 

CAUSE

 

PROPERTY

 

DAMAGE

PERSONAL

 

INJURY

 

OR

 

DEATH

.

WARNING

T

O

 

PREVENT

 

THE

 

RISK

 

OF

 

PROPERTY

 

DAMAGE

PERSONAL

 

INJURY

 

OR

 

DEATH

DO

 

NOT

 

STORE

 

COMBUSTIBLE

 

MATERIALS

 

OR

 

USE

 

GASOLINE

 

OR

 

OTHER

 

FLAMMABLE

 

LIQUIDS

 

OR

 

VAPORS

 

IN

 

THE

 

VICINITY

 

OF

 

THIS

APPLIANCE

.

WARNING

HIGH VOLTAGE!

I

NSTALLATION

 

AND

 

REPAIR

 

OF

 

THIS

 

UNIT

 

SHOULD

 

BE

 

PERFORMED

 ONLY 

BY

 

INDIVIDUALS

 

MEETING

 (

AT

 

A

  

MINIMUM

THE

 

REQUIREMENTS

 

OF

 

AN

 “E

NTRY

 L

EVEL

 

T

ECHNICIAN

” 

AS

 

SPECIFIED

 

BY

 

THE

 A

IR

 C

ONDITIONING

H

EATING

AND

 R

EFRIGERATION

 I

NSTITUTE

 (AHRI). 

A

TTEMPTING

 

TO

 

INSTALL

 

OR

 

REPAIR

 

THIS

 

UNIT

 

WITHOUT

 

SUCH

 

BACKGROUND

 

MAY

 

RESULT

 

IN

 

PRODUCT

 

DAMAGE

PERSONAL

 

INJURY

 

OR

 

DEATH

.

WARNING

Summary of Contents for DCG Series

Page 1: ...Installation and Maintenance Manual IM 1213 Group Applied Air Systems Part Number IM 1213 Date January 2014 Light Commercial Packaged Gas Units DCG Series 15 20 Tons...

Page 2: ...ngle package heating and cooling units See the Specification Sheet applicable to your model for information regarding accessories NOTE Please contact your distributor or our website for the applicable...

Page 3: ...11 Circulating Air and Filters 12 Venting 12 Condensate Drain Connection 12 Startup Adjustments and Checks 13 Air flow Adjustments 14 Motor Sheave Adjustments 15 Gas System Check 15 Normal Sequence O...

Page 4: ...S SCREWS CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION CAUTION DO NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIG...

Page 5: ...ity to install the product in accordance with National Codes and or prevailing local codes and regulations The heating and cooling capacities of the unit should be greater than or equal to the design...

Page 6: ...ine Common sources of such compounds include swimming pool chemicals and chlorine bleaches paint stripper adhesives paints varnishes sealers waxes which are not yet dried and solvents used during cons...

Page 7: ...to protect the unit from damage while lifting with forks The shipping brace is located under the unit under compressor Also remove the fork hole brackets as shown in the following figure 2 Locate and...

Page 8: ...r unit operation A total clearance of75 aroundthisunitisrecommendedto facilitatepossibleblower assembly shaft wheel replacement coil heat exchanger electric heat and gas furnace removal This unit must...

Page 9: ...Installation Instructions Refer to the Roof Curb Installation Instructions for proper curb installation Curbing must be installed in compliance with the Na tional Roofing Contractors Association Manu...

Page 10: ...data plate NOTE If supply voltage is 208V all leads on primary of transformer TRANS1 must be moved from the 230V to the 208V tap Main power wiring should be sized for the minimum wire ampacity shown...

Page 11: ...ing runs not exceeding 75feet Use 16 AWG wire for 24V control wiring runs not exceeding 125 feet Use 14 AWG wire for 24V control wiring runs not exceeding 200 feet Low voltage wiring may be National E...

Page 12: ...ting Value of Gas BTU Cubic Foot CFH BTUH Furnace Input Refer to the Proper Piping Practice drawing for the general layout at the unit The following rules apply 1 Use black iron pipe and fittings for...

Page 13: ...DEVICE WARNING IMPORTANT NOTE Propane gas conversion kits must be installed to convert units to propane gas All propane gas equipment must conform to the safety standards of the National Board of Fir...

Page 14: ...ering side of the gas valve for test gauge connection to measure supply main gas pressure Another 1 8 tap is provided on the side of the manifold for checking manifold pressure THIS UNIT AND ITS INDIV...

Page 15: ...oils fans and motors for unacceptable levels of construction dust and dirt and install new filters CONTRACTOR RESPONSIBILITY The installing contractor must be certain that All supply and return air du...

Page 16: ...unit perfor mance is possible EVAPORATOR FAN ROTATION CHECK Check that fan rotates clockwise when viewed from the drive side of unit and in accordance with rotation arrow shown on blower housing If it...

Page 17: ...are in place and the set screws tight before starting drive Recheck set screws and belt tension after 24 hours service NOTE Future adjustments should be made by loosening the belt tension and increasi...

Page 18: ...ane gas Check the location of the ignition electrode and the flame sensor for correct gap setting Flame Sensor Ignitor NATURAL PROPANE LP 350 000 7 50 000 30 48 400 000 8 50 000 30 48 GASORIFICES MAXI...

Page 19: ...put rate by varying the adjustment of the gas pressure regulator on the gas valve All adjustments must be made with furnace operating at high fire and at normal operating tempera ture A manometer shou...

Page 20: ...s a three 3 try spark ignition sequence 6 When the burners are ignited a minimum four 4 micro amp DC current will flow through the flame between the sensor electrode and the grounded burner 7 When the...

Page 21: ...the highest position stopping the unit The indoor blower will continue to run for 65 seconds 9 Turn the thermostat system switch to OFF and disconnect all power when servicing the unit START UP PROCED...

Page 22: ...le off and IIC pin 12 will initiate its time delay cycle The compressor and the supply fan will cycle off 10 After a time delay of approximately 3 minutes the compressor control circuits will be ready...

Page 23: ...ster This is especially important in in stallations with extended periods of direct sunlight CONDENSER AND INDUCED DRAFT MOTORS Bearings on the condenser fan motors and the combustion fan motor are pe...

Page 24: ...rable combustion cannot be established within three 3 consecutive ignition attempts If flame is not established within the seven 7 second trial for ignition the gas valve is deenergized 15 second inte...

Page 25: ...excessive supply air temperatures This can be caused by a dirty filter excessive duct static insuffi cient air flow or a faulty limit Check filters total external duct static blower motor blower moto...

Page 26: ...0 6 6903 3 32 6405 2 83 5923 2 41 5434 2 02 4949 1 68 0 8 6717 3 42 6198 2 92 5668 2 45 5152 2 05 1 0 5975 2 99 5418 2 51 1 2 5147 2 55 CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP 0 2 9359...

Page 27: ...SPEED ID FAN MOTOR ELECTRICAL DATA 20 TON ID MOTOR APPL COMPRESSOR ea OD FAN MOTORS ea ID FAN MOTOR VOLTAGE LIMITATIONS VOLTAGE NAMEPLATE MODELS MIN MAX Qty RLA LRA Qty HP RLA HP FLA HP FLA 208 230 60...

Page 28: ...26 APPENDIX C UNIT DIMENSIONS VERTICAL DISCHARGE TOP VIEW 21 60 7 48 22 B C D A Model A B C D 15 Ton 20 Ton 133 1 2 88 7 32 50 9 32 5 5 32...

Page 29: ...27 APPENDIX D WIRING DIAGRAMS...

Page 30: ...2 CC T2 BC EM COMP 2 CM3 CM1 CM2 FC2 FC3 TB2 F C F C F VM 1 2 3 24V 3 2 1 9 6 8 7 4 5 ALS PS GRND LPS1 RD YL RD RD BK PU YL BL 3 1 VMR 4 6 4 2 1 6 YL BL CCH1 CCHR2 PU BK RD OR CC 2 T2 T1 1 L2 L1 T3 L...

Page 31: ...OR EQUIPMENT STATUS PRESSURE SWITCH CHECK BAD SWITCH MAIN LIMIT OPEN STICKING GAS VALVE ANTI CYCLE TIMER 3 MIN COMP PRESSURE SWITCH CHECK GAS PRESSURE FLAME ROLLOUT AUX LIMIT OPEN FLAME SENSOR BAD SWI...

Page 32: ...575 3 ph 60 Hz BL OR OR RD BK RD RD BR BR PU PU RD C F C F FC3 FC2 BK C F FC1 BR BR PU PU PU NOTE 6 BK OR VM 24V 3 1 L2 UNUSED COOL HEAT DI L1 4 5 6 2 3 1 ECON 11 8 12 9 7 10 3 2 1 9 6 8 7 4 5 GV ALS...

Page 33: ...E PLUG TO THE ECONOMIZER COMPARTMENT REMOVE MALE PLUG AND TO BLOWER HOUSING IN RETURN AIR 2 ACCESSORY ECONOMIZER PLUG ADJACENT 4 USE COPPER CONDUCTORSO NLY USE NEC CLASS 2 WIRE 4 3 L1 AND L2 ON IIC CO...

Page 34: ...S2 G WH SEE NOTE 5 S1 RD W1 W2 O YL POWER SUPPLY SEE NOTE 4 208V 240V 3 ph 60Hz SEE NOTE 7 TO THERMOSTAT LOW SPEED CB2 L2 T3 L1 T2 L3 T1 HIGH SPEED CB1 L 2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY B...

Page 35: ...LVE A NTI CYCLE TIMER 3 MIN COMP PRES SURE SW ITCH CH ECK GA S PRESSUR E FLAME ROLLOUT AUX LIM IT O PEN FLAM E SENSO R B AD SW ITCH GAS VALVE GA S FLOW REPLACE CONTRO L CHECK FUSE ON CO NTROL CH ECK I...

Page 36: ...S1 RD W1 W2 O YL POWER SUPPLY SEE NOTE 4 460V 575V 3 ph 60Hz SEE NOTE 7 TO THERMOSTAT LOW SPEED CB2 L2 T3 L1 T2 L3 T1 HIGH SPEED CB1 L2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY BK RD OR L 3 T3 L 2 CC...

Page 37: ...T REM OVE M ALE PL UG AND TO BLOWE R HOUSING IN RETURN AIR 2 AC CESSORY ECONOMIZER PLU G A DJACENT 4 US E C OPPER CONDU CTORS ONLY USE NEC CLASS 2 W IRE 4 3 L1 AND L2 ON IIC CONTROL IS 24V INPUT 0140...

Page 38: ...o its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied Representative for warranty details To find your local Daikin Applied Representative go...

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