Heat Controller Tgrg Series For R 410A Quick Start Guide 92 21916 34 Rev. 02 TGRG**C 13 And TGRG**D 14 Seer Gas/Electric Package Unit Installation Instructions

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INSTALLATION INSTRUCTIONS
PACKAGE GAS ELECTRIC

FEATURING EARTH-FRIENDLY R-410A REFRIGERANT
TGRG**C/TGRG**E (2-5 TONS)
TGRG**D- 14 SEER (2-5 TONS)

refrigerant

Seasonal Energy Efficiency Ratio (SEER)

10.6 —

RRNL

RRPL

13.0

14.0

Uses least energy ➞ 16.05

Annual Fuel Utilization Efficiency - AFUE
THIS MODEL

80.0%

MID
78%

HIGH

82%

88%

97%

(14 SEER &
ABOVE)

ISO 9001:2008

U.L. recognized fuel gas and CO (carbon monoxide) detectors are recommended in all
applications, and their installation should be in accordance with the manufacturer’s
recommendations and/or local laws, rules, regulations, or customs.

92-21916-34-02
SUPERSEDES 92-21916-34-01

TABLE OF CONTENTS
I.
II.
III.
IV.

V.
VI.

VII.

VIII.

IX.

X.

XI.
XII.
XIII.
XIV.
XV.
XVI.

2

Safety Information .................................................................................................3
Introduction............................................................................................................6
Checking Product Received ..................................................................................6
Specifications ........................................................................................................6
A. General .............................................................................................................6
B. Major Components............................................................................................6
C. R-410A Refrigerant ...........................................................................................6
Unit Dimensions ....................................................................................................8
Installation ...........................................................................................................10
A. General ...........................................................................................................10
1. Pre-Installation Check ................................................................................10
2. Location Considerations.............................................................................10
B. Outside Installation..........................................................................................10
C. Attaching Exhaust and Combustion Air Inlet Hoods .......................................11
D. Cover Panel Installation/Conversion Procedure .............................................12
1. Horizontal to Downflow ...............................................................................12
2. Downflow to Horizontal ...............................................................................12
E. Clearances ......................................................................................................12
F. Rooftop Installation .........................................................................................14
G. Ductwork .........................................................................................................14
H. Return Air ........................................................................................................16
I. Filters ..............................................................................................................17
Gas Supply, Condensate Drain and Piping .........................................................19
A. Gas Connection ..............................................................................................19
B. LP Conversion.................................................................................................20
C. NOx Models ....................................................................................................21
D. Adjusting or Checking Furnace Input ..............................................................21
E. Condensate Drain ...........................................................................................22
Wiring ..................................................................................................................22
A. Power Supply ..................................................................................................22
B. Hook Up ..........................................................................................................24
C. Internal Wiring .................................................................................................24
D. Thermostat ......................................................................................................24
Furnace Section Controls and Ignition System ...................................................25
A. Normal Furnace Operating Sequence ............................................................25
B. Operating Instructions .....................................................................................26
C. Burners............................................................................................................27
D. Manual Reset Overtemperature Control .........................................................27
E. Pressure Switch ..............................................................................................27
F. Limit Control ....................................................................................................27
System Operating Information.............................................................................27
A. Advise the Customer.......................................................................................27
B. Furnace Section Maintenance ........................................................................28
C. Lubrication.......................................................................................................29
D. Cooling Section Maintenance .........................................................................29
E. Replacement Parts..........................................................................................30
F. Charging..........................................................................................................30
G. Blower Motor Speed Adjustments...................................................................30
General Data ..................................................................................................33-38
Miscellaneous.................................................................................................39-42
Airflow Performance Data ..............................................................................43-46
Wiring Diagrams.............................................................................................47-51
Charge Charts ................................................................................................52-59
Troubleshooting..............................................................................................60-61

I. SAFETY INFORMATION
! WARNING
PROPOSITION 65: THIS FURNACE CONTAINS FIBERGLASS INSULATION.
RESPIRABLE PARTICLES OF FIBERGLASS ARE KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER. EXHAUST GAS FROM THIS FURNACE
CONTAINS CHEMICALS, INCLUDING CARBON MONOXIDE, KNOWN TO THE
STATE OF CALIFORNIA TO CAUSE BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.

! WARNING
THE MANUFACTURER’S WARRANTY DOES NOT COVER ANY DAMAGE OR
DEFECT TO THE AIR CONDITIONER CAUSED BY THE ATTACHMENT OR USE
OF ANY COMPONENTS, ACCESSORIES OR DEVICES (OTHER THAN THOSE
AUTHORIZED BY THE MANUFACTURER) INTO, ONTO OR IN CONJUNCTION
WITH THE AIR CONDITIONER. YOU SHOULD BE AWARE THAT THE USE OF
UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES MAY
ADVERSELY AFFECT THE OPERATION OF THE AIR CONDITIONER AND MAY
ALSO ENDANGER LIFE AND PROPERTY. THE MANUFACTURER DISCLAIMS
ANY RESPONSIBILITY FOR SUCH LOSS OR INJURY RESULTING FROM THE
USE OF SUCH UNAUTHORIZED COMPONENTS, ACCESSORIES OR DEVICES.

! WARNING
UNITS ARE NOT DESIGN CERTIFIED TO BE INSTALLED INSIDE THE STRUCTURE. DOING SO CAN CAUSE INADEQUATE UNIT PERFORMANCE AS WELL
AS PROPERTY DAMAGE AND CARBON MONOXIDE POISONING RESULTING
IN PERSONAL INJURY OR DEATH.

! WARNING
DISCONNECT ALL POWER TO UNIT BEFORE STARTING MAINTENANCE.
FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.

! WARNING
THESE UNITS ARE DESIGNED CERTIFIED FOR OUTDOOR INSTALLATION
ONLY. INSTALLATION INSIDE ANY PART OF A STRUCTURE CAN RESULT IN
INADEQUATE UNIT PERFORMANCE AS WELL AS PROPERTY DAMAGE.
INSTALLATION INSIDE CAN ALSO CAUSE RECIRCULATION OF FLUE PRODUCTS INTO THE CONDITIONED SPACE RESULTING IN PERSONAL INJURY
OR DEATH.

! WARNING
THIS UNIT MUST NOT BE INSTALLED DIRECTLY ON WOOD FLOORING, CLASS
A, CLASS B OR CLASS C ROOF COVERING MATERIALS, OR ANY OTHER COMBUSTIBLE STRUCTURE EXCEPT AS SPECIFIED IN FIGURE 13. FAILURE TO
ADHERE TO THIS WARNING CAN CAUSE A FIRE OR EXPLOSION RESULTING
IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

! WARNING
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO
ANY OTHER HEAT PRODUCING DEVICE SUCH AS FIREPLACE INSERT,
STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE,
CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL INJURY, OR
PROPERTY DAMAGE.

3

! WARNING
NEVER ALLOW PRODUCTS OF COMBUSTION OR THE FLUE PRODUCTS TO
ENTER THE RETURN AIR DUCTWORK, OR THE CIRCULATING AIR SUPPLY.
ALL RETURN DUCTWORK MUST BE ADEQUATELY SEALED AND SECURED
TO THE FURNACE WITH SHEET METAL SCREWS, AND JOINTS TAPED. ALL
OTHER DUCT JOINTS MUST BE SECURED WITH APPROVED CONNECTIONS
AND SEALED AIRTIGHT.
FAILURE TO PREVENT PRODUCTS OF COMBUSTION FROM BEING CIRCULATED INTO THE LIVING SPACE CAN CREATE POTENTIALLY HAZARDOUS
CONDITIONS, INCLUDING CAROBON MONOXIDE POISONING THAT COULD
RESULT IN PERSONAL INJURY OR DEATH.

! WARNING
DO NOT USE AN OPEN FLAME TO CHECK FOR LEAKS. THE USE OF AN OPEN
FLAME CAN RESULT IN FIRE, EXPLOSION, PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.

! WARNING
THIS UNIT IS EQUIPPED AT THE FACTORY FOR USE ON NATURAL GAS ONLY.
CONVERSION TO LP GAS REQUIRES A SPECIAL KIT SUPPLIED BY THE DISTRIBUTOR OR MANUFACTURER. MAILING ADDRESSES ARE LISTED ON THE
FURNACE RATING PLATE, PARTS LIST AND WARRANTY. FAILURE TO USE
THE PROPER CONVERSION KIT CAN CAUSE FIRE, CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL INJURY, PROPERTY DAMAGE OR DEATH.

! WARNING
TURN OFF THE MAIN ELECTRICAL POWER AT THE BRANCH CIRCUIT DISCONNECT CLOSEST TO THE UNIT BEFORE ATTEMPTING ANY WIRING. FAILURE
TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL
INJURY OR DEATH.

! WARNING
DO NOT ATTEMPT TO MANUALLY LIGHT THIS FURNACE WITH A MATCH OR
ANY OPEN FLAME. ATTEMPTING TO DO SO CAN CAUSE AN EXPLOSION OR
FIRE RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

! WARNING
IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.

! WARNING
THE SPARK IGNITOR AND IGNITION LEAD FROM THE IGNITION CONTROL
ARE HIGH VOLTAGE. KEEP HANDS OR TOOLS AWAY TO PREVENT ELECTRICAL SHOCK. SHUT OFF ELECTRICAL POWER BEFORE SERVICING ANY
OF THE CONTROLS. FAILURE TO ADHERE TO THIS WARNING CAN RESULT
IN PERSONAL INJURY OR DEATH.

! WARNING
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF,
SHUT OFF THE MANUAL GAS VALVE TO THE APPLIANCE BEFORE SHUTTING OFF THE ELECTRICAL SUPPLY. FAILURE TO DO SO CAN RESULT IN
AN EXPLOSION OR FIRE CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH!
4

! WARNING
DO NOT JUMPER THIS DEVICE! DO NOT reset the overtemperature control
without taking corrective action to assure that an adequate supply of combustion air is maintained under all conditions of operation. Failure to do so can
result in carbon monoxide poisoning or death. Replace this control only with
the identical replacement part.

! WARNING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

! WARNING
HOLES IN THE EXHAUST TRANSITION OR HEAT EXCHANGER CAN CAUSE
TOXIC FUMES TO ENTER THE HOME. THE EXHAUST TRANSITION OR HEAT
EXCHANGER MUST BE REPLACED IF THEY HAVE HOLES OR CRACKS IN
THEM. FAILURE TO DO SO CAN CAUSE CARBON MONOXIDE POISONING
RESULTING IN PERSONAL NJURY OR DEATH.

! WARNING
DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING MAINTENANCE. FAILURE TO DO SO MAY RESULT IN ELECTRICAL
SHOCK OR SEVERE PERSONAL INJURY OR DEATH.

! WARNING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING THE UNIT.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION
RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, SEVERE
PERSONAL INJURY OR DEATH.

! WARNING
DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING TO CHANGE BLOWER SPEEDS. FAILURE TO DO SO MAY RESULT IN
ELECTRICAL SHOCK OR SEVERE PERSONAL INJURY OR DEATH.

! WARNING
DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY
BREAK ONLY ONE SIDE. FAILURE TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.

! CAUTION
R-410A systems operate at higher pressures than R-22 systems. Do not use
R-22 service equipment or components on R-410A equipment.

5

! WARNING
IMPORTANT: ALL MANUFACTURER PRODUCTS MEET CURRENT
FEDERAL OSHA GUIDELINES FOR
SAFETY. CALIFORNIA
PROPOSITION 65 WARNINGS ARE
REQUIRED FOR CERTAIN PRODUCTS, WHICH ARE NOT COVERED
BY THE OSHA STANDARDS.
CALIFORNIA'S PROPOSITION 65
REQUIRES WARNINGS FOR PRODUCTS SOLD IN CALIFORNIA THAT
CONTAIN, OR PRODUCE, ANY OF
OVER 600 LISTED CHEMICALS
KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER
OR BIRTH DEFECTS SUCH AS
FIBERGLASS INSULATION, LEAD
IN BRASS, AND COMBUSTION
PRODUCTS FROM NATURAL GAS.
ALL “NEW EQUIPMENT” SHIPPED
FOR SALE IN CALIFORNIA WILL
HAVE LABELS STATING THAT THE
PRODUCT CONTAINS AND/OR
PRODUCES PROPOSITION 65
CHEMICALS. ALTHOUGH WE HAVE
NOT CHANGED OUR PROCESSES,
HAVING THE SAME LABEL ON ALL
OUR PRODUCTS FACILITATES
MANUFACTURING AND SHIPPING.
WE CANNOT ALWAYS KNOW
“WHEN, OR IF” PRODUCTS WILL
BE SOLD IN THE CALIFORNIA
MARKET.
YOU MAY RECEIVE INQUIRIES
FROM CUSTOMERS ABOUT CHEMICALS FOUND IN, OR PRODUCED
BY, SOME OF OUR HEATING AND
AIR-CONDITIONING EQUIPMENT,
OR FOUND IN NATURAL GAS USED
WITH SOME OF OUR PRODUCTS.
LISTED BELOW ARE THOSE CHEMICALS AND SUBSTANCES COMMONLY ASSOCIATED WITH SIMILAR EQUIPMENT IN OUR INDUSTRY AND OTHER MANUFACTURERS.
• GLASS WOOL (FIBERGLASS)
INSULATION
• CARBON MONOXIDE (CO)
• FORMALDEHYDE
• BENZENE
MORE DETAILS ARE AVAILABLE
AT THE WEBSITES FOR OSHA
(OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION), AT
WWW.OSHA.GOV AND THE STATE
OF CALIFORNIA'S OEHHA (OFFICE
OF ENVIRONMENTAL HEALTH
HAZARD ASSESSMENT), AT
WWW.OEHHA.ORG. CONSUMER
EDUCATION IS IMPORTANT SINCE
THE CHEMICALS AND SUBSTANCES ON THE LIST ARE
FOUND IN OUR DAILY LIVES. MOST
CONSUMERS ARE AWARE THAT
PRODUCTS PRESENT SAFETY AND
HEALTH RISKS, WHEN IMPROPERLY USED, HANDLED AND MAINTAINED.

6

II. INTRODUCTION
This booklet contains the installation and operating instructions for your combination gas
heating/electric cooling unit. There are some precautions that should be taken to derive
maximum satisfaction from it. Improper installation can result in unsatisfactory operation
or dangerous conditions.
Read this booklet and any instructions packaged with separate equipment required to
make up the system prior to installation. Give this booklet to the owner and explain its
provisions. The owner should retain this booklet for future reference.

III. CHECKING PRODUCT RECEIVED
Upon receiving the unit, inspect it for any damage from shipment. Claims for damage,
either shipping or concealed, should be filed immediately with the shipping company.
IMPORTANT: Check the unit model number, heating size, electrical characteristics, and
accessories to determine if they are correct.

IV. SPECIFICATIONS
A. GENERAL
The Combination Gas Heating/Electric Cooling Rooftop is available in 40,60, 80 and 100
BTU/Hr. heating inputs and cooling capacities of 2, 21⁄2, 3, 31⁄2 , 4 and 5 nominal tons of
cooling. Units are convertible from end supply and return to bottom supply and return by
relocation of supply and return air access panels. See cover installation detail.
The units are weatherized for mounting outside of the building.

! WARNING
UNITS ARE NOT DESIGN CERTIFIED TO BE INSTALLED INSIDE THE STRUCTURE. DOING SO CAN CAUSE INADEQUATE UNIT PERFORMANCE AS WELL
AS PROPERTY DAMAGE AND CARBON MONOXIDE POISONING RESULTING
IN PERSONAL INJURY OR DEATH.
The information on the rating plate is in compliance with the FTC and DOE rating for single phase units. The following information is for three phase units which are not covered
under the DOE certification program.
1. The energy consumption of the ignition system used with this unit is 9 watts.
2. The efficiency rating of this unit is a product thermal efficiency rating determined
under continuous operating conditions independent of any installed system.

B. MAJOR COMPONENTS
The unit includes a hermetically-sealed refrigerating system (consisting of a compressor,
condenser coil, evaporator coil with thermostatic expansion valve), a circulation air blower, a condenser fan, a heat exchanger assembly, gas burner and control assembly,
combustion air motor and fan, and all necessary internal electrical wiring. The cooling
system of these units is factory-evacuated, charged with R-410A refrigerant and performance tested. Refrigerant amount is indicated on rating plate.

C. R410A REFRIGERANT
All units are factory charged with R-410A refrigerant.

1. Specification of R-410A:
Application: R-410A is not a drop-in replacement for R-22; equipment designs must
accommodate its higher pressures. It cannot be retrofitted into R-22 units.
Pressure: The pressure of R-410A is approximately 60% (1.6 times) greater than R22. Recovery and recycle equipment, pumps, hoses and the like need to have design
pressure ratings appropriate for R-410A. Manifold sets need to range up to 800 psig
high-side and 250 psig low-side with a 550 psig low-side retard. Hoses need to have a
service pressure rating of 800 psig. Recovery cylinders need to have a 400 psig service
pressure rating. DOT 4BA400 or DOT BW400.
Combustibility: At pressures above 1 atmosphere, mixture of R-410A and air can
become combustible. R-410A and air should never be mixed in tanks or supply
lines, or be allowed to accumulate in storage tanks. Leak checking should never
be done with a mixture of R-410A and air. Leak checking can be performed safely
with nitrogen or a mixture of R-410A and nitrogen.

2. Quick Reference Guide For R-410A
• R-410A refrigerant operates at approximately 60% higher pressure (1.6 times) than R22. Ensure that servicing equipment is designed to operate with R-410A.
• R-410A refrigerant cylinders are pink.
• R-410A, as with other HFC’s is only compatible with POE oils.
• Vacuum pumps will not remove moisture from POE oil.
• R-410A systems are to be charged with liquid refrigerants. Prior to March 1999, R410A refrigerant cylinders had a dip tube. These cylinders should be kept upright for
equipment charging. Post March 1999 cylinders do not have a dip tube and should
be inverted to ensure liquid charging of the equipment.
• Do not install a suction line filter drier in the liquid line.
• A liquid line filter drier is standard on every unit.
• Desiccant (drying agent) must be compatible for POE oils and R-410A

3. Evaporator Coil / TXV
The thermostatic expansion valve is specifically designed to operate with R-410A. DO
NOT use an R-22 TXV. The existing evaporator must be replaced with the factory
specified TXV evaporator specifically designed for R-410A.

4. Tools Required For Installing & Servicing R-410A Models
Manifold Sets:
-Up to 800 PSIG High side
-Up to 250 PSIG Low Side
-550 PSIG Low Side Retard
Manifold Hoses:
-Service Pressure Rating of 800 PSIG
Recovery Cylinders:
-400 PSIG Pressure Rating
-Dept. of Transportation 4BA400 or BW400

! CAUTION
R-410A systems operate at higher pressures than R-22 systems. Do not use
R-22 service equipment or components on R-410A equipment.

7

V. UNIT DIMENSIONS
FOR CLEARANCES
SEE FIGURE 9.

FIGURE 1

30% ± 2%
OUTDOOR FAN GRILLE
AND COMPRESSOR ACCESS

OUTDOOR COIL
PROTECTIVE GRILLE

FLUE
EXHAUST
21% ± 2%
29% ± 2%
SIDE
RETURN
DUCT
OPENING

20% ± 2%

FIELD POWER
WIRE ENTRANCE

THREADED
PVC CONDENSATE
DRAIN CONNECTION
(3/4 NPT)

FLUE EXHAUST
HOOD

SUCTION PRESSURE
SERVICE PORT

FIELD CONTROL
WIRE ENTRANCE

BLOWER/EVAPORATOR
ACCESS PANEL

COMBUSTION AIR
INLET HOOD

LIQUID PRESSURE
SERVICE PORT

SIDE SUPPLY DUCT
OPENING

CORNER WEIGHTS
% OF TOTAL UNIT
WEIGHT

TOP VIEW

BOTTOM VIEW
451⁄16”
INSIDE 13⁄16”
TYP.

479⁄16”

5013⁄16”

BOTTOM
RETURN
DUCT
OPENING

11⁄2”
TYP.
153⁄8”

191⁄2”

497⁄16”
INSIDE
BOTTOM
SUPPLY
DUCT
OPENING

141⁄4”
TYP.

OUTDOOR FAN
GRILLE & COMPRESSOR
ACCESS

8

33⁄16”

313⁄16”
49⁄10”

FIGURE 1 (CONTINUED)

BACK VIEW

FRONT VIEW
SIDE
SUPPLY
DUCT
OPENING

207⁄8”

39⁄16”

191⁄8”

15”
227⁄8”

75⁄16”

131⁄4”
21⁄2”

2211⁄16”

042, 048,
060, 060

133⁄4”
TYP.

1315⁄16”

47⁄16”

471⁄2”

MODELS
TGRG**C/
TGRG**E
024, 030,
036

47⁄8”

3515⁄16”

81⁄2”

143⁄16”

TYP.

TYP.

SIDE
RETURN
DUCT
OPENING

SHOWN WITH DUCT COVERS REMOVED.

MODEL
TGRG**D

“A”
HEIGHT

024

3515⁄16”

036, 048,
060

41

SIDE VIEW

SIDE VIEW
FLUE
EXHAUST
HOOD
GAS
SUPPLY
ENTRANCE

1015⁄16”

527⁄16”
FILTER ACCESS PANEL
(FOR UNIT MOUNTED FILTER
ACCESSORY)

OUTDOOR
COIL PROTECTIVE
GRILLE

111⁄16”
BLOWER/
EVAPORATOR
ACCESS PANEL

9

VI. INSTALLATION
A. GENERAL
1. PRE-INSTALLATION CHECK-POINTS — Before attempting any installation, carefully consider the following points:
Structural strength of supporting members
(Rooftop Installation)
Clearances and provision for servicing
Power supply and wiring
Gas supply and piping
Air duct connections and sizing
Drain facilities and connections
Location for minimum noise and vibration
2. LOCATION CONSIDERATIONS (CORROSIVE ENVIRONMENT)
The metal parts of this unit may be subject to rust or deterioration if exposed to a
corrosive environment. This oxidation could shorten the equipment’s useful life.
Corrosive elements include, but are not limited to, salt spray, fog or mist in seacoast
areas, sulphur or chlorine from lawn watering systems, and various chemical contaminants from industries such as paper mills and petroleum refineries.
If the unit is to be installed in an area where contaminants are likely to be a
problem, give special attention to the equipment location and exposure.
1. Avoid having lawn sprinkler heads spray directly on the unit cabinet.
2. In coastal areas locate the unit on the side of the building away from the waterfront.
3. Shielding by a fence or shrubs may give some protection.

! WARNING
DISCONNECT ALL POWER TO UNIT BEFORE STARTING MAINTENANCE.
FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.
1. Frequent washing of the cabinet, fan blade and coil with fresh water will remove
most of the salt or other contaminants that build up on the unit.
2. Regular cleaning and waxing of the cabinet with a good automobile polish will provide some protection.
3. Use a good liquid cleaner several times a year to remove matter that will not wash
off with water.
Several different types of protective coatings are offered in some areas. These coatings
may provide some benefit, but the effectiveness of such coating materials cannot be verified by the equipment manufacturer.
The best protection is frequent cleaning, maintenance and minimal exposure to
contaminants.

B. OUTSIDE INSTALLATION

! WARNING
THESE UNITS ARE DESIGNED CERTIFIED FOR OUTDOOR INSTALLATION
ONLY. INSTALLATION INSIDE ANY PART OF A STRUCTURE CAN RESULT IN
INADEQUATE UNIT PERFORMANCE AS WELL AS PROPERTY DAMAGE.
INSTALLATION INSIDE CAN ALSO CAUSE RECIRCULATION OF FLUE PRODUCTS INTO THE CONDITIONED SPACE RESULTING IN PERSONAL INJURY
OR DEATH.
(Typical outdoor slab installation is shown in Figure 2.)
1. Select a location where external water drainage cannot collect around unit.

10

FIGURE 2
OUTSIDE SLAB INSTALLATION. CLOSET DISTRIBUTION SYSTEM. SLAB FLOOR
CONSTRUCTION

2. Provide a slab sufficiently high enough above grade to prevent surface water from
entering the unit. Where snowfall is anticipated, mount the unit above the anticipated maximum snow depth for your area. Do not locate unit in an area where excessive snow drifting may block combustion air inlet.
3. Pitch the slab approximately 1⁄2” so that the unit will be pitched toward the drain. See
Figure 3.
4. The location of the unit should be such as to provide proper access for inspection
and servicing as shown in Figure 9.
5. Locate unit where operating sounds will not disturb owner or neighbors. The slab
should be isolated from the foundation wall.
6. Locate unit so roof runoff water does not pour directly on the unit. Provide gutter or
other shielding at roof level.

C. ATTACHING EXHAUST AND COMBUSTION AIR INLET HOODS
IMPORTANT: Do not operate this unit without the exhaust and combustion air inlet
hood properly installed. These hoods are shipped in a carton in the return air compartment inside the unit and must be attached when the unit is installed. See Figure 4.
To attach exhaust and combustion air inlet hood:
1. Remove 3 screws securing filter access panel and remove filter access panel. For location of filter access panel, see Figure 1.
2. Remove both exhaust and combustion air inlet hoods from their carton, located inside
the return air compartment.
3. Attach filter access panel.
4. Attach the combustion air inlet hood and the exhaust hood each with 4 screws as shown
in Figure 4. Screws are in parts bag shipped in the burner compartment.
5. Vent the unit using the flue exhaust hood, as supplied from the factory, without alteration
or addition. The only exception is with factory approved additions. Consult your local utility or other authority having jurisdiction for accepted venting techniques.

11

FIGURE 4
COMBUSTION AIR INLET HOOD & EXHAUST HOOD
INSTALLATION

FIGURE 3
PITCHING UNIT TO INSURE PROPER CONDENSATE DRAINAGE.

COMBUSTION
AIR INLET
HOOD W/(4)
SCREWS

EXHAUST
HOOD W/(4)
SCREWS

I655

D. COVER PANEL INSTALLATION/CONVERSION PROCEDURE
1. HORIZONTAL TO DOWNFLOW
a. Remove screws and covers from the supply and return bottom sections. NOTE:
Rotate the supply cover 90° and remove.
b. Install gasket (supplied with parts bag) around perimeter of cover on the insulated
side. See Figure 6.
c. Secure covers to the side of the unit using existing screws and those supplied in
the parts bag.
2. DOWNFLOW TO HORIZONTAL
a. Remove screws and covers from the supply and return bottom sections.
b. Install gasket (supplied with parts bag) around perimeter of cover as illustrated in
Figure 5.
c. Install covers in the unit bottom with the insulated side up. NOTE: Supply cover
must be inserted through supply opening with narrow side toward unit. Once
cover is through opening, rotate 90° and slip back flange of cover under tab at the
back of bottom duct opening. See Figure 8.
d. Secure supply cover to base of unit with 2 screws, engaging prepunched holes in
raised duct opening flange.
e. Secure return covers to base of unit with screws engaging prepunched holes in
raised duct opening flange.

! WARNING
THIS UNIT MUST NOT BE INSTALLED DIRECTLY ON WOOD FLOORING, CLASS
A, CLASS B OR CLASS C ROOF COVERING MATERIALS, OR ANY OTHER COMBUSTIBLE STRUCTURE EXCEPT AS SPECIFIED IN FIGURE 13. FAILURE TO
ADHERE TO THIS WARNING CAN CAUSE A FIRE OR EXPLOSION RESULTING
IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

E. CLEARANCES
The following minimum clearances must be observed for proper unit performance and
serviceability. See Figure 9.
1. Provide 48” minimum clearance at front of the unit. Provide 24” minimum clearance
on right side of unit. If economizer is used, a 24” minimum clearance is required on

12

FIGURE
FIGURE 55
FOR UNITS
UNITSSHIPPED
SHIPPEDFOR
FORDOWNFLOW
DOWNFLOW
COVER
COVER GASKET
GASKET DETAIL
DETAIL FOR
CONVERTEDTO
TOSIDE
SIDEDISCHARGE
DISCHARGE
APPLICATION
APPLICATION BEING
BEING CONVERTED

SUPPLY/RETURN
AIR COVER

FIGURE
FIGURE 66

TAPE
AROUND FLANGE

COVER GASKET
GASKET DETAIL FOR
COVER
FOR UNITS
UNITSSHIPPED
SHIPPEDFOR
FORSIDE
SIDEDISCHARGE
DISCHARGE
APPLICATION
CONVERTED TO
TODOWNFLOW
DOWNFLOW
APPLICATION BEING CONVERTED

SUPPLY/RETURN
AIR COVER

I

FIGURE
FIGURE 77
DUCT
SIDE MOUNTING
MOUNTING
DUCTCOVER
COVERINSTALLATION
INSTALLATION SIDE

TAPE
AROUND FLANGE
I654

RETURN
DUCT COVER
(ATTACH WITH 6 SCREWS)

FIGURE
FIGURE 88
DUCT
BASEPAN
PANMOUNTING
MOUNTING
DUCT COVER
COVER INSTALLATION
INSTALLATION BASE

SUPPLY
DUCT COVER
(ATTACH WITH 6 SCREWS)
I264

BASE PAN
LANCE AT BACK OF BOTTOM
SUPPLY DUCT OPENING

SUPPLY DUCT
COVER *
(INSULATION
SIDE UP),
ATTACH WITH
TWO SCREWS.

RETURN
DUCT
COVER
(INSULATION
SIDE UP,
ATTACH
WITH 4
SCREWS)

* ROTATE SUPPLY COVER 90° AFTER IT IS INSERTED

SUPPLY DUCT
COVER

THROUGH OPENING. SLIP FLANGE OF COVER
UNDER LANCE AT BACK OF BOTTOM SUPPLY DUCT
OPENING. SEE DETAIL AT LEFT. THEN SECURE
COVER BY INSTALLING 2 SCREWS USING HOLE
NEAREST THE OUTSIDE OF UNIT.

I265

13

FIGURE 9
CLEARANCES

left side of unit. (See Figure 9.) If no economizer is required, then a 12” clearance
is required on left side of unit.
2. Provide 60” minimum clearance between top of unit and maximum 3 foot overhang.
3. Unit is design certified for 2” minimum clearance between supply duct and a combustible structure for the first 3 feet of duct. 0” clearance is allowed after 3 feet.

F. ROOFTOP INSTALLATION
1. Before locating the unit on the roof, make sure that the roof structure is adequate to
support the weight involved. (See electrical & physical tables in this book for weight
of unit.) THIS IS VERY IMPORTANT AND THE INSTALLER’S RESPONSIBILITY.
2. For rigging and roofcurb details, see Figures 14, 15, and 16.
3. The location of the unit on the roof should be such as to provide proper access for
inspection and servicing.
IMPORTANT: If unit will not be put into service immediately, block off supply and return
air openings to prevent excessive condensation.

G. DUCTWORK
The installing contractor should fabricate ductwork in accordance with local codes. Use
industry manuals as a guide when sizing and designing the duct system. Contact Air
Conditioning Contractors of America, 1513 16th St. N.W., Washington, D.C. 20036.

! WARNING
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO
ANY OTHER HEAT PRODUCING DEVICE SUCH AS FIREPLACE INSERT,
STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE,
CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL INJURY, OR
PROPERTY DAMAGE.

14

FIGURE
FIGURE 10
10
EXCEPTION
TO NON-COMBUSTIBLE
NON-COMBUSTIBLE FLOORING
FLOORING REQUIREMENT
REQUIREMENT
EXCEPTION TO

SIDEFLOW
SUPPLY
PLENUM
CONNECTION
NOMINAL
4 x 4 TIMBER
(SIDES ONLY)

SIDEFLOW
RETURN PLENUM
CONNECTION

BOTH ENDS
MUST BE
OPEN FOR
DOWNFLOW
OR SIDEFLOW
DUCTWORK
TO PROVIDE
VENTILATION

3-1/2” MIN.

1” MIN.

COMBUSTIBLE
STRUCTURE
SUPPLY
PLENUM
(DOWNFLOW)

RETURN PLENUM
(DOWNFLOW)
I458

FIGURE 11
FLAT ROOFTOP INSTALLATION, ATTIC OR DROP CEILING DISTRIBUTING SYSTEM. MOUNTED ON
ROOFCURB, PITCH UNIT TOWARD DRAIN.

FIGURE 12
PITCHED ROOFTOP INSTALLATION, ON ANGLE-IRON STAND, SIDE FLOW DUCTWORK,
ATTIC OR DROP CEILING
DISTRIBUTING SYSTEM.
PITCH UNIT TOWARD DRAIN.

15

FIGURE 13
PITCHED ROOFTOP INSTALLATION, ON ROOFJACK, DOWNFLOW DUCTWORK, ATTIC OR
DROP CEILING DISTRIBUTING SYSTEM. PITCH UNIT TOWARD DRAIN.

Place the unit as close to the conditioned space as possible allowing clearances as indicated. Run ducts as directly as possible to supply and return outlets. Use of non-flammable weatherproof flexible connectors on both supply and return connections at unit to
reduce noise transmission is recommended.
On ductwork exposed to outside temperature and humidity, use a minimum of 2” of
insulation and a vapor barrier. Distribution system in attic, furred space or crawl space
should be insulated with at least 2” of insulation. 1⁄2” to 1” thick insulation is usually sufficient for ductwork inside the air conditioned space.
Provide balancing dampers for each branch duct in the supply system. Properly support
ductwork from the structure.
IMPORTANT: In the event that the return air ducts must be run through an “unconfined”
space containing other fuel burning equipment, it is imperative that the user/homeowner
must be informed against future changes in construction which might change this to a
“confined space.” Also, caution the user/homeowner against any future installation of
additional equipment (such as power ventilators, clothes dryers, etc., within the existing
unconfined and/or confined space which might create a negative pressure within the
vicinity of other solid, liquid, or gas fueled appliances.

H. RETURN AIR

! WARNING
NEVER ALLOW PRODUCTS OF COMBUSTION OR THE FLUE PRODUCTS TO
ENTER THE RETURN AIR DUCTWORK, OR THE CIRCULATING AIR SUPPLY.
ALL RETURN DUCTWORK MUST BE ADEQUATELY SEALED AND SECURED
TO THE FURNACE WITH SHEET METAL SCREWS, AND JOINTS TAPED. ALL
OTHER DUCT JOINTS MUST BE SECURED WITH APPROVED CONNECTIONS
AND SEALED AIRTIGHT.
FAILURE TO PREVENT PRODUCTS OF COMBUSTION FROM BEING CIRCULATED INTO THE LIVING SPACE CAN CREATE POTENTIALLY HAZARDOUS
CONDITIONS, INCLUDING CAROBON MONOXIDE POISONING THAT COULD
RESULT IN PERSONAL INJURY OR DEATH.

16

FIGURE 14
LIFTING DETAIL.

I. FILTERS

The installer must install field supplied filters in the return air duct. A field installed filter
grille is recommended for easy and convenient access to the filters for periodic inspection and cleaning. Filters must have adequate face area for the rated air quantity of the
unit. See air delivery tables for recommended filter size. A field installed internal filter kit
RXRY-B01 is available.

17

FIGURE
FIGURE 15
15
ROOFCURB
ROOFCURB

FIGURE 16

RETURN PLENUM

ROOFCURB

16 /2
MAX.
1

INSULATION
PANELS

201/2 MAX.

GASKET

SUPPLY
PLENUM

ROOFTOP UNIT
TIE DOWN SCREW *

163/8 MAX.
NAILING STRIP

DUCT
FLANGE
(NOT TO
EXCEED 1()

** DUCT *
ROOF FLASHING *
INSULATION *

NAILING
STRIP

ROOFCURB

ROOFING *
CANT STRIP *

ROOFCURB

CAULK ALL
JOINTS
WATERTIGHT

INSULATION *

I342

ROOF DECK *

**BY CONTRACTOR
**FOR INSTALLATION OF DUCT AS SHOWN, USE RECOMMENDED
DUCT SIZES FROM ROOFCURB INSTALLATION INSTRUCTIONS. FOR
DUCT FLANGE ATTACHMENT TO UNIT, SEE UNIT INSTALLATION
INSTRUCTIONS (FIGURE 1) FOR SIZE OF DUCT OPENINGS.

FIGURE 17
DUCTWORK COVER INSTALLATION DETAIL

FIGURE 18
RESIDENTIAL ROOFTOP DUCTWORK INSTALLATION DETAIL.

I

18

I255

VII. GAS SUPPLY, CONDENSATE DRAIN AND
VII. PIPING
A. GAS CONNECTION
IMPORTANT: Connect this unit only to gas supplied by a commercial utility.
1. Install gas piping in accordance with local codes and regulations of the local utility
company. In the absence of local codes, the installation must conform to the specifications of the National Fuel Gas Code, ANSI Z223.1 - latest edition.
NOTE: The use of flexible gas connectors is not permitted.
NOTE: The Commonwealth of Massachusetts requires the gas shut-off valve to be
a T-handle gas cock.
2. Connect the gas line to the gas pipe inlet opening provided into the 1/2” inlet valve.
See Figure 2 for typical piping.
3. Size the gas line to the furnace adequate enough to prevent undue pressure drop
and never less than 1/2”.
4. Install a drip leg or sediment trap in the gas supply line as close to the unit as possible.
5. Install an outside ground joint union to connect the gas supply to the control assembly at the burner tray.
6. Gas valves have been factory installed. Install a manual gas valve where local codes
specify a shut-off valve outside the unit casing. (See Figure 19.)
7. Make sure piping is tight. A pipe compound resistant to the action of liquefied
petroleum gases must be used at all threaded pipe connections.
8. IMPORTANT: Any additions, changes or conversions required for the furnace to satisfactorily meet the application should be made by a qualified installer, service
agency or the gas supplier, using factory-specified or approved parts. In the commonwealth of Massachusetts, installation must be performed by a licensed plumber
or gas fitter for appropriate fuel.
IMPORTANT: Disconnect the furnace and its individual shutoff valve from the gas supply piping during any pressure testing of that system at test pressures in excess of 1/2
psig or isolate the system from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of this gas supply system at pressures
equal to or less than 1/2 PSIG.

FIGURE
FIGURE19
19
SUGGESTED
SUGGESTEDGAS
GASPIPING
PIPING

ROOF OR GROUND LEVEL INSTALLATION
FROM GAS
METER

UNIT GAS SUPPLY
CONNECTION

*

MANUAL GAS
SHUT-OFF
VALVE

*Factory supplied grommet must be utilized.

TABLE 1
GAS PIPE CAPACITY TABLE (CU. FT./HR.)

Nominal
Iron Pipe
Size,
Inches
1
/2
3
/4
1
11/4
11/2

Equivalent Length of Pipe, Feet
10

20

132
92
278 190
520 350
1,050 730
1,600 1,100

30

40

50

60

70

80

73
152
285
590
890

63
130
245
500
760

56
115
215
440
670

50
105
195
400
610

46
96
180
370
560

43
90
170
350
530

19

TO CHECK FOR GAS LEAKS, USE A SOAP AND WATER SOLUTION OR OTHER
APPROVED METHOD. DO NOT USE AN OPEN FLAME.

! WARNING
DO NOT USE AN OPEN FLAME TO CHECK FOR LEAKS. THE USE OF AN OPEN
FLAME CAN RESULT IN FIRE, EXPLOSION, PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
IMPORTANT: Check the rating plate to make certain the appliance is equipped to burn
the type of gas supplied. Care should be taken after installation of this equipment that
the gas control valve not be subjected to high gas supply line pressure.
In making gas connections, avoid strains as they may cause noise and damage the controls. A backup wrench is required to be used on the valve to avoid damage.
The capacities of gas pipe of different diameters and lengths in cu. ft. per hr. with pressure drop of 0.5 in. and specific gravity of 0.60 (natural gas) are shown in Table 2.
After determining the pipe length, select the pipe size which will provide the minimum
cubic feet per hour required for the gas input rating of the furnace. By formula:
Gas Input of Furnace
(BTU/HR)
Cu. Ft. Per Hr. Required =
Heating Value of Gas
(BTU/FT3)
The gas input of the furnace is marked on the furnace rating plate. The heating value of
the gas (BTU/FT3) may be determined by consulting the local natural gas utility or the
L.P. gas supplier.

B. LP CONVERSION

! WARNING
THIS UNIT IS EQUIPPED AT THE FACTORY FOR USE ON NATURAL GAS ONLY.
CONVERSION TO LP GAS REQUIRES A SPECIAL KIT SUPPLIED BY THE DISTRIBUTOR OR MANUFACTURER. MAILING ADDRESSES ARE LISTED ON THE
FURNACE RATING PLATE, PARTS LIST AND WARRANTY. FAILURE TO USE
THE PROPER CONVERSION KIT CAN CAUSE FIRE, CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL INJURY, PROPERTY DAMAGE OR DEATH.
Convert the valve to use liquefied petroleum (LP) gas by replacing the pressure regulator
spring with the conversion kit spring. This LP kit spring allows the regulator to maintain the
proper manifold pressure for LP gas. The correct burner LP orifices are included in the kit.
See Figure 20.
NOTE: Order the correct LP conversion kit from the furnace manufacturer. See
Conversion Kit Index shipped with unit for proper LP kit number. Furnace conversion to LP gas must be performed by a qualified technician.

FIGURE
FIGURE20
20

20

C. NOx MODELS
When converting units equipped with NOx inserts to LP gas, the stainless steel mesh
inserts in the entrance of the tubular exchangers are not required to meet SCAQMD NOx
emission levels. Carefully remove these inserts before firing this furnace on LP gas. This
furnace is not designed to operate on LP gas with the NOx inserts in place.
Step by step instructions on removing the NOx inserts and retaining rod are included in the
Conversion Kit Installation Instructions.

TABLE 2
LP GAS PIPE CAPACITY TABLE (CU. FT./HR.)
Maximum capacity of pipe in thousands of BTU per hour of undiluted liquefied petroleum
gases (at 11 inches water column inlet pressure).
(Based on a Pressure Drop of 0.5 Inch Water Column)
Nominal
Length of Pipe, Feet
Iron Pipe
10 20
30
40
50 60
70
80 90 100 125 150
Size, Inches
1/2
275 189 152 129 114 103
96
89
83
78
69 63
3/4
567 393 315 267 237 217 196 182 173 162 146 132
1
1,071 732 590 504 448 409 378 346 322 307 275 252
1-1/4
2,205 1,496 1,212 1,039 913 834 771 724 677 630 567 511
1-1/2
3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 866 787
2
6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811 1,606 1,496
Example (LP): Input BTU requirement of unit, 150,000
Equivalent length of pipe, 60 ft. = 3/4” IPS required.

D. ADJUSTING OR CHECKING FURNACE INPUT
– Natural Gas Line Pressure 5” - 10.5” W.C.
– LP Gas Line Pressure 11” - 13” W.C.
– Natural Gas Manifold Pressure 3.5” W.C
– LP Gas Manifold Pressure - 10” W.C.
Supply and manifold pressure taps are located on the gas valve body 1/8” N.P.T.
Use a properly calibrated manometer gauge for accurate gas pressure readings.
Only small variations in the gas flow should be made by means of the pressure regulator
adjustment. Furnaces functioning on LP gas must be set by means of the tank or branch
supply regulators. The furnace manifold pressure should be set at 10” W.C. at the gas control valve.
To adjust the pressure regulator, remove the regulator cap and turn the adjustment screw
clockwise to increase pressure or counterclockwise to decrease pressure. Then replace
the regulator cap securely.
Any necessary major changes in the gas flow rate should be made by changing the size of
the burner orifices. To change orifice spuds, shut off the manual main gas valve and
remove the gas manifold.
For elevations up to 2,000 feet, rating plate input ratings apply. For high altitudes (elevations
over 2,000 ft.), see conversion kit index 92-21519-XX for derating and orifice spud sizes.
Check of input is important to prevent over-firing of the furnace beyond its designrated input. NEVER SET INPUT ABOVE THAT SHOWN ON THE RATING PLATE. Use
the following table or formula to determine input rate.
Heating Value of Gas
(BTU/Cu. Ft.) x 3600
Cu. Ft. Per Hr. Required =
Time in Seconds
(for 1 Cu. Ft.) of Gas

21

TABLE 3
METER TIME IN MINUTES AND SECONDS FOR NORMAL
INPUT RATING OF FURNACES EQUIPPED FOR NATURAL
OR LP GAS
INPUT
BTU/HR
40,000
60,000
80,000
100,000

METER
HEATING VALUE OF GAS BTU PER CU. FT.
SIZE
900
1000
1040
1100
2500
CU. FT. MIN. SEC. MIN. SEC. MIN. SEC. MIN. SEC. MIN. SEC.
ONE
1 21
1 30
1 34
1 39
3 45
TEN
13 30 15
0 15 36 16 30 37 30
ONE
0 54
1
0
1
3
1
6
2 30
TEN
9
0 10
0 10 24 11
0 25
0
ONE
0 41
0 45
0 47
0 50
1 53
TEN
6 45
7 30
7 48
8 15 18 45
ONE
0 33
0 36
0 38
0 40
1 30
TEN
5 24
6
0
6 15
6 36 15
0

Start the furnace and measure the time required to burn one cubic foot of gas. Prior to
checking the furnace input, make certain that all other gas appliances are shut off, with
the exception of pilot burners. Time the meter with only the furnace in operation.
IMPORTANT NOTE FOR ALTITUDES ABOVE 2,000 FEET (610 METERS): The main
burner orifices in your furnace and in these kits are sized for the nameplate input and
intended for installations at elevations up to 2,000 feet in the USA or Canada, or for elevations of 2,000 - 4,500 feet (610 -1,373 meters) in Canada if the unit has been derated
at the factory. For elevations above 2,000 feet (610 meters) IN THE USA ONLY (see
ANSI-Z223.1), the burner orifices must be sized to reduce the input 4% for each 1,000
feet (305 meters) above sea level.
NOTICE: DERATING OF THE HEATING INPUT FOR HIGH ALTITUDE IN THE FIELD
IS UNLAWFUL IN CANADA (REFER TO CAN/CGA 2.17). UNITS INSTALLED IN
ALTITUDES GREATER THAN 2,000 FEET (610 METERS) MUST BE SHIPPED FROM
THE FACTORY OR FROM A FACTORY AUTHORIZED CONVERSION STATION
WITH THE HEATING INPUT DERATED BY 10% SO AS TO OPERATE PROPERLY IN
ALTITUDES FROM 2,000 - 4,500 FEET (610 - 1,373 METERS).

E. CONDENSATE DRAIN
The evaporator coil condensate drain ends with a threaded 3/4” nominal PVC stub. A
trap is built in for proper condensate drainage and to prevent debris from being drawn
into the unit. Do not connect the drain to a closed sewer line. Connection to a vented
sewer line is allowed. It is recommended that a PVC cement not be used so that the
drain line can be easily cleaned in the future.
IMPORTANT: DO NOT INSTALL AN EXTERNAL TRAP. DOING SO CAN CAUSE
IMPROPER DRAINAGE OF THE CONDENSATE AND RESULT IN FLOODING WITHIN THE UNIT.

VIII.WIRING
A. POWER SUPPLY

! WARNING
TURN OFF THE MAIN ELECTRICAL POWER AT THE BRANCH CIRCUIT DISCONNECT CLOSEST TO THE UNIT BEFORE ATTEMPTING ANY WIRING. FAILURE
TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL
INJURY OR DEATH.

22

1. All wiring should be made in accordance with the National Electrical Code.
Consult the local power company to determine the availability of sufficient power to
operate the unit. Check the voltage at power supply to make sure it corresponds to
the unit’s RATED VOLTAGE REQUIREMENT. Install a branch circuit disconnect
near the rooftop, in accordance with the N.E.C., C.E.C. or local codes.
2. It is important that proper electrical power is available at the unit. Voltage should not
vary more than 10% from that stamped on the unit nameplate. On three phase units,
phases must be balanced within 3%.
3. For branch circuit wiring (main power supply to unit disconnect), the minimum wire size
for the length of run can be determined from Table 4 using the circuit ampacity found on
the unit rating plate. Use the smallest wire size allowable in Table 4 from the unit disconnect to unit. The disconnect must be in sight and readily accessible of the unit.
TABLE 4
BRANCH CIRCUIT COPPER WIRE SIZE
(BASED ON 1% VOLTAGE DROP)*

200

6

SUPPLY WIRE 150 8
LENGTH-FEET 100 10
50

14
15

4
6
8
12
20

4
6
8
10
25

4
4
6
10
30

3
4
6
8
35

3
4
6
8
40

2
2
3
3
4
4
6
6
45 50

BRANCH CIRCUIT AMPACITY
*Taken from National Electric Code
NOTES:
1. Wire size based on 60°C rated wire insulation and 30°C Ambient Temp. (86°F).
2. For more than 3 conductors in a raceway or cable, see the N.E.C. for derating the
ampacity of each conductor.
When installed, the unit must be electrically grounded in accordance with local
codes or, in the absence of local codes, with the National Electrical Code,
ANSI/NFPA 70, if an external electrical source is utilized.
IMPORTANT: THIS UNIT IS APPROVED FOR USE WITH COPPER CONDUCTORS
ONLY CONNECTED TO UNIT CONTACTOR.
WARRANTY MAY BE JEOPARDIZED IF ALUMINUM WIRE IS CONNECTED TO
UNIT CONTACTOR.
Special instructions apply for power wiring with aluminum conductors: Warranty
is void if connections are not made per instructions.
Attach a length (6” or more) of recommended size copper wire to the unit contactor terminals L1 and L3 for single phase, L1, L2 and L3 for three phase.
Select the equivalent aluminum wire size from the tabulation below:
Splice copper wire pigtails to aluminum wire with U.L. recognized connectors for copperaluminum splices. Please exercise the following instructions very carefully to obtain a
positive and lasting connection:
1. Strip insulation from aluminum conductor.
2. Coat the stripped end of the aluminum wire with the recommended inhibitor, and
wire brush the aluminum surface through inhibitor. INHIBITORS: Brundy-Pentex “A”;
Alcoa-No. 2EJC; T & B-KPOR Shield.
3. Clean and recoat aluminum conductor with inhibitor.
4. Make the splice using the above listed wire nuts or split bolt connectors.
5. Coat the entire connection with inhibitor and wrap with electrical insulating tape.

TABLE 5
AWG Copper
Wire Size
#12
#10
# 8
# 6
# 4

AWG Aluminum
Wire Size
#10
# 8
# 6
# 4
# 2

Connector Type and Size
(or equivalent)
T & B Wire Nut
PT2
T & B Wire Nut
PT3
Sherman Split Bolt
TSP6
Sherman Split Bolt
TSP4
Sherman Split Bolt
TSP2

23

B. HOOK-UP
To wire unit, refer to the following hook-up diagram (see Figure 21).
Refer to Figure 1 for location of wiring entrances.
Wiring to be done in the field between the unit and devices not attached to the unit, or
between separate devices which are field installed and located, shall conform with the
temperature limitation for Type T wire [63°F rise (35°C)] when installed in accordance
with the manufacturer’s instructions.
FIGURE 21
WIRE HOOK-UP DIAGRAM

FOR INTERNAL WIRING SEE WIRING LABEL ATTACHED TO UNIT
CHASSIS GROUND
T1
T2
T3

L1
CONTACTOR

L2

LOW VOLTAGE
WIRE LEADS
Y

G

R

W

C

Y2

L

ODD

Y

G

R

W

C

Y2

L

ODD

*

L3

HIGH VOLTAGE
DISCONNECT
SWITCH

THERMOSTAT

*L2 connection 3Phase only

Y - COOLING (LOW STAGE IN 2 STAGE SYSTEMS)
G - FAN ONLY
R - 24V
W - HEATING
C - COMMON
Y2 - HIGH STAGE COOLING (TWO STAGE ONLY)
L - ALERT CODES (OPTIONAL WITH COMFORT ALERT
L - AND COMPATIBLE THERMOSTAT)
ODD - ON-DEMAND DEHUMIDIFICATION

C. INTERNAL WIRING
IMPORTANT: Some single phase units are equipped with a single pole contactor.
Caution must be exercised when servicing as only one leg of the power supply is broken
with the contactor.
A diagram of the internal wiring of this unit is located under the electrical box cover and
in this manual. If any of the original wire as supplied with the appliance must be
replaced, the wire gauge and insulation must be same as original wiring.
Transformer is factory wired for 230 volts on 208/230 volt models and must be changed
for 208 volt applications. See unit wiring diagram for 208 volt wiring.

D. THERMOSTAT
The room thermostat must be compatible with the spark ignition control on the unit.
Generally, all thermostats that are not of the “current robbing” type are compatible with
the integrated furnace control. Two stage units (5 ton) require use of a thermostat capable of 2 stages of cooling. (See Section IV.) See chart below for recommendations. The
low voltage wiring should be sized as shown in Table 6.
Install the room thermostat in accordance with the instruction sheet packed in the box
with the thermostat. Never install the thermostat on an outside wall or where it will be
influenced by drafts, concealed hot or cold water pipes or ducts, lighting fixtures, radiation from fireplace, sun rays, lamps, televisions, radios or air streams from registers.
Refer to instructions packed with the thermostat for “heater” selection or adjustment.

24

TABLE
TABLE 6
Thermostat Load - Amps

FIELD WIRE SIZE FOR 24 VOLT THERMOSTAT CIRCUITS
SOLID COPPER WIRE - AWG.
3.0
2.5
2.0

16
16
18

14
14
16

12
12
14

10
12
12

10
12
12

10
10
10

50

100
150
200
250
Length of Run – Feet (1)

300

(1) The total wire length is the distance from the furnace to the
thermostat and back to the furnace.
NOTE: DO NOT USE CONTROL WIRING SMALLER THAN NO. 18
AWG.

IX. FURNACE SECTION CONTROLS AND
IGNITION SYSTEM
A. NORMAL FURNACE OPERATING SEQUENCE
This unit is equipped with an integrated direct spark ignition control.
1. The thermostat calls for heat.
2. The control board will run a self check to verify that the limit control and manual reset
overtemperature control are closed and that the pressure switch is open. If so, the
induced draft blower (inducer) begins a prepurge cycle.
3. The air proving negative pressure switch closes.
4. 15 seconds after the pressure switch closes, the gas valve opens and the spark is
initiated for a 7 second trial for ignition.
5. Burners ignite and flame sensor proves all burners have lit.
6. The circulating air blower is energized after 30 seconds.
7. The control board enters a normal operation loop in which all safety controls are monitored continuously.
8. Thermostat is satisfied and opens.
9. The gas valve is de-energized and closes, shutting down the burner flame.
10. The control board will de-energize the inducer after a five second post purge.
11. The circulating air blower is de-energized after 90 seconds.
• The integrated control board has a three ignition system.
• After a total of three trials for ignition without sensing main burner flame, the system
goes into a 100% lockout mode.
• After one hour, the ignition control repeats the prepurge and ignition cycles for 3 tries
and then goes into 100% lockout mode again.
• It continues this sequence of cycles and lockout each hour until ignition is successful or
power is interrupted.
• During the lockout mode, neither the spark ignition control or gas valve will be energized
until the system is reset by turning the thermostat to the “OFF” position or interrupting
the electrical power to the unit for 3 seconds or longer.
• The induced draft blower and main burner will shut off when the thermostat is satisfied.
• The circulating air blower will start and run on the heating speed if the thermostat fan
switch is in the “ON” position.
The integrated furnace control is equipped with diagnostic LED. The LED is lit continuously
when there is power to the control, with or without a call for heat. If the LED is not lit, there
is either no power to the control or there is an internal component failure within the control,
and the control should be replaced.

25

If the control detects the following failures, the LED will flash on for approximately 1/4 second, then off for 3/4 second for designated failure detections.
1 Flash: Failed to detect flame within the three tries for ignition.
2 Flash: Pressure switch or induced draft blower problem detected.
3 Flash: High limit or auxiliary limit open.
4 Flash: Flame sensed and gas valve not energized or flame sensed with no “W” signal.
5 Flash: Overtemperature switch open.

B. OPERATING INSTRUCTIONS
This appliance is equipped with a direct spark intermittent ignition device. This device
lights the main burners each time the room thermostat (closes) calls for heat. See operating instructions on the back of the furnace/controls access panel.

! WARNING
DO NOT ATTEMPT TO MANUALLY LIGHT THIS FURNACE WITH A MATCH OR
ANY OPEN FLAME. ATTEMPTING TO DO SO CAN CAUSE AN EXPLOSION OR
FIRE RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
TO START THE FURNACE
1. STOP! Read the safety information on the Operating Instructions Label located on this
appliance.

! WARNING
IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
2. Set the thermostat to its lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do NOT try to light the burner by hand.
5. Remove control door/access panel.
6. Move switch to the “OFF” position.
7. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor.
If you smell gas, STOP!
• Do not try to light any appliance.
• Do not touch any electric 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.
If you don’t smell gas, go to the next step.
8. Move the switch from “OFF” position to “ON” position.
9. Replace the control door.
10. Turn on all electric power to the appliance.
11. Set the thermostat to the desired setting.
12. If the appliance will not operate, follow the instructions below on how to shut down the
furnace.

26

! WARNING
THE SPARK IGNITOR AND IGNITION LEAD FROM THE IGNITION CONTROL
ARE HIGH VOLTAGE. KEEP HANDS OR TOOLS AWAY TO PREVENT ELECTRICAL SHOCK. SHUT OFF ELECTRICAL POWER BEFORE SERVICING ANY
OF THE CONTROLS. FAILURE TO ADHERE TO THIS WARNING CAN RESULT
IN PERSONAL INJURY OR DEATH.
The initial start-up on a new installation may require the control system to be energized for
some time until any air has bled through the system and fuel gas is available at the burners.
TO SHUT DOWN FURNACE
1. Set the thermostat to the lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Remove control door.
4. Move switch to the “OFF” position.
5. Replace control door.

! WARNING
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF,
SHUT OFF THE MANUAL GAS VALVE TO THE APPLIANCE BEFORE SHUTTING OFF THE ELECTRICAL SUPPLY. FAILURE TO DO SO CAN RESULT IN
AN EXPLOSION OR FIRE CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH!

C. BURNERS
Burners for these units have been designed so that field adjustment is not required.
Burners are tray-mounted and accessible for easy cleaning when required.

D. MANUAL RESET OVERTEMPERATURE CONTROL
A manual reset overtemperature control is located on the burner shield. This device senses blockage in the heat exchanger or insufficient combustion air. This shuts off the main
burners if excessive temperatures occur in the burner compartment.
Operation of this control indicates an abnormal condition. Therefore, the unit should be
examined by a qualified installer, service agency, or the gas supplier before being placed
back into operation.

! WARNING
DO NOT JUMPER THIS DEVICE! DO NOT reset the overtemperature control
without taking corrective action to assure that an adequate supply of combustion air is maintained under all conditions of operation. Failure to do so can
result in carbon monoxide poisoning or death. Replace this control only with
the identical replacement part.

E. PRESSURE SWITCH
This furnace has a pressure switch for sensing a blocked exhaust or a failed induced draft
blower. It is normally open and closes when the induced draft blower starts, indicating air
flow through the combustion chamber.

F. LIMIT CONTROL
The supply air high temperature limit cut-off is set at the factory and cannot be adjusted. It
is calibrated to prevent the air temperature leaving the furnace from exceeding the maximum outlet air temperature. WARNING: DO NOT JUMPER THIS DEVICE! Replace
this control only with the identical replacement part.

X. SYSTEM OPERATING INFORMATION
A. ADVISE THE CUSTOMER
1. Keep the air filters clean. The heating system operates better, more efficiently and
more economically.
2. Arrange the furniture and drapes so that the supply air registers and the return air
grilles are unobstructed.
3. Close doors and windows. This reduces the heating load on the system.
27

4. Avoid excessive use of exhaust fans.
5. Do not permit the heat generated by television, lamps or radios to influence the thermostat operation.
6. Except for the mounting platform, keep all combustible articles three feet from the unit
and exhaust system.
7. IMPORTANT: Replace all blower doors and compartment cover after servicing the
unit. Do not operate the unit without all panels and doors securely in place.
8. Do not allow snow or other debris to accumulate in the vicinity of the appliance.

B. FURNACE SECTION MAINTENANCE
The unit’s furnace should operate for many years without excessive scale build-up in flue
passageways; however, it is recommended that a qualified installer, service agency, or the
gas supplier annually inspect the flue passageways, the exhaust system and the burners
for continued safe operation, paying particular attention to deterioration from corrosion or
other sources.
If during inspection the flue passageways and exhaust system are determined to require
cleaning, the following procedures should be followed (by a qualified installer, service
agency, or gas supplier):
1. Turn off the electrical power to the unit and set the thermostat to the lowest temperature.
2. Shut off the gas supply to the unit either at the meter or at manual valve in the
supply piping.

! WARNING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
3. Remove the furnace controls access panel and the control box cover.
4. Disconnect the gas supply piping from the gas valve.
5. Disconnect the wiring to the induced draft blower motor, gas valve, flame sensor, and
flame roll-out control, and ignitor cable. Mark all wires disconnected for proper
reconnection.
6. Remove the screws (4) connecting the burner tray to the heat exchanger mounting
panel.
7. Remove the burner tray and the manifold assembly from the unit.
8. Remove the screws (4) connecting the induced draft blower to the collector box and
screws (16) connecting the collector box to the heat exchanger mounting panel.
Remove the induced draft blower and the collector box from the unit.
9. Remove the turbulators from inside the heat exchangers by inserting the blade of a
screwdriver under the locking tabs. Pop the tabs out of the expanded grooves of the
heat exchanger. Slide the turbulators out of the heat exchangers.
10. Direct a water hose into the outlet of the heat exchanger top. Flush the inside of each
heat exchanger tube with water. Blow out each tube with air to remove excessive
moisture.
11. Reassemble (steps 1 through 10 in reverse order). Be careful not to strip out the
screw holes used to mount the collector box and inducer blower. Replace inducer blower gasket and collector box gasket with factory replacements if damaged.

! WARNING
HOLES IN THE EXHAUST TRANSITION OR HEAT EXCHANGER CAN CAUSE
TOXIC FUMES TO ENTER THE HOME. THE EXHAUST TRANSITION OR HEAT
EXCHANGER MUST BE REPLACED IF THEY HAVE HOLES OR CRACKS IN
THEM. FAILURE TO DO SO CAN CAUSE CARBON MONOXIDE POISONING
RESULTING IN PERSONAL NJURY OR DEATH.
The manufacturer recommends that a qualified installer, service agency or the gas supplier visually inspect the burner flames for the desired flame appearance at the beginning of
the heating season and approximately midway in heating season.
The manufacturer also recommends that a qualified installer, service agency or the gas
supplier clean the flame sensor with steel wool at the beginning of the heating season.

28

! WARNING
DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING MAINTENANCE. FAILURE TO DO SO MAY RESULT IN ELECTRICAL
SHOCK OR SEVERE PERSONAL INJURY OR DEATH.

C. LUBRICATION
IMPORTANT: DO NOT attempt to lubricate the bearings on the blower motor or the
induced draft blower motor. Addition of lubricants can reduce the motor life and void the
warranty.
The blower motor and induced draft blower motor are prelubricated by the manufacturer
and do not require further attention.
A qualified installer, service agency or the gas supplier must periodically clean the
motors to prevent the possibility of overheating due to an accumulation of dust and dirt
on the windings or on the motor exterior. And, as suggested elsewhere in these instructions, the air filters should be kept clean because dirty filters can restrict air flow and the
motor depends upon sufficient air flowing across and through it to prevent overheating.

D. COOLING SECTION MAINTENANCE

! WARNING
DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING MAINTENANCE. FAILURE TO DO SO MAY RESULT IN ELECTRICAL
SHOCK OR SEVERE PERSONAL INJURY OR DEATH.
It is recommended that at the beginning of each cooling season a qualified installer or
service agency inspect and clean the cooling section of this unit. The following areas
should be addressed: evaporator coil, condenser coil, condenser fan motor and venturi
area.
To inspect the evaporator coil:
1. Remove the filter access panel and the blower/evaporator coil access panel.

! WARNING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING THE UNIT.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION
RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, SEVERE
PERSONAL INJURY OR DEATH.
2. Unplug the wires from the circulating air blower and the limit control. Remove the
two screws and slide the blower out of the unit sideways.
3. Shine a flashlight on the evaporator coil (both sides) and inspect for accumulation of
lint, insulation, etc.
4. If coil requires cleaning, follow the steps shown below.
Cleaning Evaporator Coil
1. Remove screws from condenser fan grille assembly and lay grille over on the unit
top panel.
2. Remove the controls access panel and the control box cover.
3. Disconnect the outdoor fan motor wiring from the compressor contactor and capacitor. Remove the strain relief in the bulkhead and pull the fan motor wires through.
Set grille assembly to the side.
4. Remove the screws that secure the unit top to the unit. Remove the top and set the
unit top to the side.
5. The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum it with a soft brush attachment. Be careful not to bend the coil fins.
6. If the coil is coated with oil or grease, clean it with a mild detergent-and-water solution. Rinse the coil thoroughly with water. IMPORTANT: Do not use excessive water
pressure. Excessive water pressure can bend the fins and tubing of the coil and lead
to inadequate unit performance. Be careful not to splash water excessively into unit.
7. Go to next section for cleaning the condenser coil.
Cleaning Condenser Coil, Drain Pan, Condensate Drain, Condenser Fan,
Circulation Air Blower and Venturi
1. Remove the screws from the condenser coil protective grille and remove the grille
from the unit. Ensure the filter access panel is still removed to access all of the
screws securing the grille.
2. The coil should be cleaned when it is dry. If the coil is coated with dirt or lint, vacuum
it with a soft brush attachment. Be careful not to bend the coil fins.
29

3. If the coil is coated with oil or grease, clean it with a mild detergent-and-water solution. Rinse the coil thoroughly with water. IMPORTANT: Do not use excessive water
pressure. Excessive water pressure can bend the fins and tubing of the coil and lead
to inadequate unit performance. Be careful not to splash water excessively into unit.
4. Inspect the drain pan and condensate drain at the same time the condenser coil is
checked. Clean the drain pan by flushing with water and removing any matters of
obstructions which may be present.
5. Flush the drain tube with water. If the drain tube is blocked, it can usually be cleared
wth high pressure water.
6. Inspect the circulating air blower wheel and motor for accumulation of lint, dirt or
other obstruction and clean if necessary. Inspect the blower motor mounts and the
blower housing for loose mounts or other damage. Repair or replace if necessary.
Re-assembly
1. Place the condenser coil protective grille back on unit and replace all screws.
2. Place top panel back on unit and replace all screws.
3. Set condenser fan grille assembly on top of the unit with the fan on top and the
motor wires on the venturi side. Run the fan motor wires through the bulkhead and
pull wires through the hole on the bottom of the control box on the left side and into
the control box. Reconnect fan motor wires per the wiring diagram attached to the
back of the control box cover.
4. Replace wire strain relief in bulkhead after the slack is pulled out of the wires on the
fan side. This will assure wires will not be damaged by the fan during unit operation.
5. Turn the condenser fan grille assembly over and into the recess in the unit top.
Secure the grille to the unit with the four screws removed earlier.
6. Replace the circulating air blower, making sure that all wires are properly reconnected per the unit wiring diagram.
7. Replace the filter and blower/evaporator coil access panels.
8. Replace the control box cover and controls access panel.
9. Restore electrical power to the unit and check for proper operation, especially the
condenser fan motor.

E. REPLACEMENT PARTS
Contact your local distributor for a complete parts list.

F. CHARGING
Refer to the appropriate charge chart included in this manual.

G. TGRG**C/TGRG**D/TGRG**E BLOWER MOTOR SPEED ADJUSTMENTS

! WARNING
DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING TO CHANGE BLOWER SPEEDS. FAILURE TO DO SO MAY RESULT IN
ELECTRICAL SHOCK OR SEVERE PERSONAL INJURY OR DEATH.
Note: These instructions to be used in conjunction with airflow data tables.
After determining necessary CFM and speed tap, follow the steps below to change
speeds.
Units with PSC Blower Motors:
1. Remove the furnace/control access panel.
2. Remove the control box cover. See Figure 22 for location of the furnace control
board.
3. Reference Figure 23 for the proper location of the wires on the speed tap block and
on the furnace control board to obtain the speed tap you have chosen.
Note: 460V units have dedicated heating and cooling speeds and should not be
adjusted.
4. After adjusting the wires accordingly, attach the control box cover, furnace control
access panel and the blower access panel to the unit.
Units with X-13 Motors
1. Remove blower access panel.
2. Locate wire terminals on the motor. Numbered terminals are 24V blower taps (See
airflow tables for corresponding speed). The C terminal is 24V common. L, N, and G
terminals are high voltage and must remain unchanged.

30

FIGURE 22
21
INTEGRATED
INTEGRATED FURNACE CONTROL BOARD

FIGURE 23
208/230 Volt X-13 Motor

208/230 Volt PSC Motor

2, 2.5, 3, 3.5, 4 TON MODELS

BL

COOL

R

HEAT

COOLING SPEED MAY BE ADJUSTED TO LOW
COOL BY MOVING BLUE WIRE TO TAP 2.
HEAT SPEED IS DEDICATED AND SHOULD
NOT BE ADJUSTED.

5 TON MODELS
Y/BL

2ND STAGE COOL

BL
R

1ST STAGE COOL
HEAT

SECOND STAGE COOLING SPEED MAY BE
ADJUSTED TO LOW COOL BY MOVING YELLOW
WITH BLUE STRIPE WIRE TO TAP 3. FIRST
STAGE COOLING SPEED IS DEDICATED AND
SHOULD NOT BE ADJUSTED. HEAT SPEED IS
DEDICATED AND SHOULD NOT BE ADJUSTED

NOTE: 460 Volt motors have dedicated speeds and are not adjustable.

31

FIGURE 24
FACTORY SET BLOWER SPEEDS

MODEL

PSC MOTOR

X-13 MOTOR

COOL

HEAT

2.0 TON W/40K HEAT
2.0 TON W/60K HEAT
2.0 TON W/80K HEAT
2.5 TON ALL HEAT INPUTS
3.0 TON ALL HEAT INPUTS
3.5 TON ALL HEAT INPUTS
4.0 TON ALL HEAT INPUTS

HIGH
HIGH
HIGH
LOW
MED
HIGH
HIGH

LOW
HEAT
HEAT
LOW
LOW
LOW
LOW

5.0 TON ALL HEAT INPUTS

N/A

N/A

COOL
HIGH (Tap 3)
HIGH (Tap 3)
HIGH (Tap 3)
HIGH (Tap 3)
HIGH (Tap 3)
HIGH (Tap 3)
HIGH (Tap 3)
1st Stage - DEDICATED (Tap 2)
2nd Stage - HIGH (Tap 4)

HEAT
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)
DEDICATED (Tap 1)

*460 volt units: Do not adjust from factory speed.

3. Cooling speeds can be adjusted as noted in Figure 23 by moving appropriate wire
between taps at the blower (Do not connect wires to unspecified speed taps).
Note: Heat speed is dedicated and should not be changed. The first stage cooling
speed on 5-ton models is dedicated and should not be changed.
4. Replace blower access panel.

32

XI. GENERAL DATA - TGRG**C/TGRG**E MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G24C-1K-40

G24C-1K-60

G24C-1K-80

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

24,400 [7.15]
11.1/13
787/800 [371/378]
23,600 [6.91]
17,340 [5.08]
6,260 [1.83]
2.12

24,400 [7.15]
11.1/13
787/800 [371/378]
23,600 [6.91]
17,340 [5.08]
6,260 [1.83]
2.12

24,400 [7.15]
11.1/13
787/800 [371/378]
23,600 [6.91]
17,340 [5.08]
6,260 [1.83]
2.12

G30C-1K-60
Continued ->
29,800 [8.73]
11.1/13
953/1000 [450/472]
28,600 [8.38]
20,810 [6.1]
7,790 [2.28]
2.58

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

40,000 [11.72]
31,000 [9.08]
30-60 [16.7/33.3]
80
81
2
1
0.5 [12.7]

60,000 [17.58]
47,000 [13.77]
40-70 [22.2/38.9]
80
81
3
1
0.5 [12.7]

80,000 [23.44]
62,000 [18.17]
55-85 [30.6/47.2]
80
81
4
1
0.5 [12.7]

60,000 [17.58]
47,000 [13.77]
30-60 [16.7/33.3]
80
81
3
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

76

76

76

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/4
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/4
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/4
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

381 [173]
421 [191]

385 [175]
425 [193]

390 [177]
430 [195]

404 [183]
444 [201]

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

33

GENERAL DATA - TGRG**C/TGRG**E MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G30C-1K-80

G30C-1K-100

G36C-1K-80

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

29,800 [8.73]
11.1/13
953/1000 [450/472]
28,600 [8.38]
20,810 [6.1]
7,790 [2.28]
2.58

29,800 [8.73]
11.1/13
953/1000 [450/472]
28,600 [8.38]
20,810 [6.1]
7,790 [2.28]
2.58

37,000 [10.84]
11.1/13
1187/1200 [560/566]
35,600 [10.43]
26,390 [7.73]
9,210 [2.7]
3.15

G36C-1K-100
Continued ->
37,000 [10.84]
11.1/13
1187/1200 [560/566]
35,600 [10.43]
26,390 [7.73]
9,210 [2.7]
3.15

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

80,000 [23.44]
62,000 [18.17]
40-70 [22.2/38.9]
80
81
4
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

80,000 [23.44]
62,000 [18.17]
40-70 [22.2/38.9]
80
81
4
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

76

76

76

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

Louvered
Rifled
0.375 [9.5]
14.8 [1.37]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2700 [1274]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
92.8 [2631]

Louvered
Rifled
0.375 [9.5]
14.8 [1.37]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2700 [1274]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
92.8 [2631]

409 [186]
449 [204]

414 [188]
454 [206]

422 [191]
462 [210]

426 [193]
466 [211]

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

34

GENERAL DATA - TGRG**C/TGRG**E MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G42C-1K-100

G48C-1K-100

G60E-1K-100

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

44,000 [12.89]
11.2/13
1400/1400 [661/661]
42,000 [12.31]
30,510 [8.94]
11,490 [3.37]
3.73

50,000 [14.65]
11.2/13
1600/1600 [755/755]
48,000 [14.06]
33,990 [9.96]
14.010 [4.1]
4.28

59,500 [17.43]
10.5/13
1900/1850 [897/873]
57,500 [16.85]
40,460 [11.85]
17,040 [4.99]
5.48

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

78

78

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
16.65 [1.55]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3500 [1652]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
112 [3175]

Louvered
Rifled
0.375 [9.5]
16.23 [1.51]
2 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3300 [1557]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
3/4
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
161.2 [4570]

Louvered
Rifled
0.375 [9.5]
16.23 [1.51]
2 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3300 [1557]
1 at 1/3 HP
1075
FC Centrifugal
1/12x9 [305x229]
Direct/3
1
1
1075
48
Field Supplied
No
(1)1x24x30 [25x610x762]
172.8 [4899]

437 [198]
477 [216]

471 [214]
511 [262]

532 [241]
577 [262]

Continued ->

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

35

GENERAL DATA - TGRG**D MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G24D-1K-40

G24D-1K-60

G24D-1K-80

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

24,400 [7.15]
12/14
800/800 [378/378]
24,000 [7.03]
17,790 [5.21]
6,210 [1.82]
2.01

24,400 [7.15]
12/14
800/800 [378/378]
24,000 [7.03]
17,790 [5.21]
6,210 [1.82]
2.01

24,400 [7.15]
12/14
800/800 [378/378]
24,000 [7.03]
17,790 [5.21]
6,210 [1.82]
2.01

G30D-1K-60
Continued ->
29,600 [8.67]
12/14
967/1000 [456/472]
29,200 [8.56]
21,700 [6.36]
7,500 [2.2]
2.43

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

40,000 [11.72]
31,000 [9.08]
30-60 [16.7/33.3]
80
81
2
1
0.5 [12.7]

60,000 [17.58]
47,000 [13.77]
40-70 [22.2/38.9]
80
81
3
1
0.5 [12.7]

80,000 [23.44]
62,000 [18.17]
55-85 [30.6/47.2]
80
81
4
1
0.5 [12.7]

60,000 [17.58]
47,000 [13.77]
30-60 [16.7/33.3]
80
81
3
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

76

76

76

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/3
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7 ]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/3
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/9x7 [229x178]
Direct/2
1
1/3
1075
48
Field Supplied
No
(1)1x20x20 [25x508x508]
77.8 [2206]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

381 [173]
421 [191]

385 [175]
425 [193]

390 [177]
430 [195]

404 [183]
444 [201]

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

36

GENERAL DATA - TGRG**D MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G30D-1K-80

G30D-1K-100

G36D-1K-80

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

29,600 [8.67]
12/14
967/1000 [456/472]
29,200 [8.56]
21,700 [6.36]
7,500 [2.2]
2.43

29,600 [8.67]
12/14
967/1000 [456/472]
29,200 [8.56]
21,700 [6.36]
7,500 [2.2]
2.43

36,800 [10.78]
12/14
1200/1200 [566/566]
36,000 [10.55]
26,420 [7.74]
9,580 [2.81]
3

G36D-1K-100
Continued ->
36,800 [10.78]
12/14
1200/1200 [566/566]
36,000 [10.55]
26,420 [7.74]
9,580 [2.81]
3

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

80,000 [23.44]
62,000 [18.17]
40-70 [22.2/38.9]
80
81
4
1
0.5 [12.7]

80,000 [23.44]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

80,000 [23.44]
62,000 [18.17]
40-70 [22.2/38.9]
80
81
4
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

76

76

76

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

Louvered
Rifled
0.375 [9.5]
10.56 [0.98]
1 / 18 [7 ]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2500 [1180]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
76.8 [2177]

Louvered
Rifled
0.375 [9.5]
14.8 [1.37]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2700 [1274]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
92.8 [2631]

Louvered
Rifled
0.375 [9.5]
14.8 [1.37]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
5.54 [0.51]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
2700 [1274]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
92.8 [2631]

409 [186]
449 [204]

414 [188]
454 [206]

422 [191]
462 [210]

426 [193]
466 [211]

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

37

GENERAL DATA - TGRG**D MODELS
NOMINAL SIZES 2-5 TONS [7-15.8 kW]
Model TGR- Series

G42D-1K-100

G48D-1K-100

G48D-1K-100

Cooling Performance1
Gross Cooling Capacity Btu [kW]
EER, SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Net System Power kW

44,000 [12.89]
12/14
1400/1400 [661/661]
43,000 [12.6]
31,270 [9.16]
11,730 [3.44]
3.58

50,500 [14.8]
12/14
1600/1600 [755/755]
49,000 [14.36]
34,990 [10.25]
14,010 [4.1]
4.08

59,500 [17.43]
10.8/14
2000/1850 [944/873]
57,500 [16.85]
40,460 [11.85]
17,040 [4.99]
5.32

Heating Performance (Gas)4
Heating Input Btu [kW]
Heating Output Btu [kW]
Temperature Rise Range °F [°C]
AFUE %
Steady State Efficiency (%)
No. Burners
No. Stages
Gas Connection Pipe Size in. [mm]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

100,000 [29.3]
77,000 [22.56]
45-85 [25/47.2]
80
81
5
1
0.5 [12.7]

Compressor
No/Type

1/Scroll

1/Scroll

1/Scroll

Outdoor Sound Rating (dB)5

76

76

76

Outdoor Coil - Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Indoor Coil - Fin Type
Tube Type
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
Outdoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Indoor Fan - Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
Motor Frame Size
Filter - Type
Furnished
(NO.) Size Recommended in. [mm x mm x mm]
Refrigerant Charge Oz. [g]
Weights
Net Weight lbs. [kg]
Ship Weight lbs. [kg]

Louvered
Rifled
0.375 [9.5]
16.65 [1.55]
1 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3500 [1652]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1/2
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
112 [3175]

Louvered
Rifled
0.375 [9.5]
16.23 [1.51]
2 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3300 [1557]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
3/4
1075
48
Field Supplied
No
(1)1x24x24 [25x610x610]
161.2 [4570]

Louvered
Rifled
0.375 [9.5]
16.23 [1.51]
2 / 22 [9]
Louvered
Rifled
0.375 [9.5]
7.39 [0.69]
2 / 15 [6]
TX Valves
1/0.75 [19.05]
Propeller
1/22 [558.8]
Direct/1
3300 [1557]
1 at 1/3 HP
1075
FC Centrifugal
1/10x9 [254x229]
Direct/3
1
1
1075
48
Field Supplied
No
(1)1x24x30 [25x610x762]
172.8 [4899]

437 [198]
477 [216]

471 [214]
511 [232]

532 [241]
577 [262]

NOTES:
1. Cooling Performance is rated at 95°F ambient, 80°F entering dry bulb, 67°F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is
net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air Conditioner
Equipment certification program, which is based on ARI Standard 210/240 or 360.
2. EER and/or SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards.
Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
4. APUE is rated in accordance with DOE test procedures.
5. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270.

38

XII. MISCELLANEOUS

Evaporator Fan

Condenser Motor

Compressor Motor

Unit Information

ELECTRICAL DATA – TGRG**C/TGRG**E SERIES
G24C-1K-40

G24C-1K-60

G24C-1K-80

G30C-1K-60

G30C-1K-80

G30C-1K-100

G36C-1K-80

G36C-1K-100

G42C-1K-100

Unit Operating
Voltage Range

187-253

187-253

187-253

187-253

187-253

187-253

187-253

187-253

187-253

Minimum Circuit
Ampacity

19/19

19/19

19/19

22/22

22/22

22/22

25/25

25/25

27/27

Minimum Overcurrent
Protection Device Size

20/20

20/20

20/20

25/25

25/25

25/25

25/25

25/25

30/30

Maximum Overcurrent
Protection Device Size

30/30

30/30

30/30

35/35

35/35

35/35

40/40

40/40

40/40

No.

1

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

1

HP

2 1/6

2 1/6

2 1/6

2 2/3

2 2/3

2 2/3

3 1/3

3 1/3

3 1/2

RPM

3450

3450

3450

3450

3450

3450

3450

3450

3450

Amps (RLA)

12.8/12.8

12.8/12.8

12.8/12.8

14.1/14.1

14.1/14.1

14.1/14.1

16.7/16.7

16.7/16.7

17.9/17.9

Amps (LRA)

58.3/58.3

58.3/58.3

58.3/58.3

73/73

73/37

73/73

79/79

79/79

112/112

No.

1

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

1

HP

1/3

1/3

1/3

1/3

1/3

1/3

1/3

1/3

1/3

Amps (FLA)

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

2

Amps (LRA)

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

3.9

No.

1

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

1

HP

1/4

1/4

1/4

1/2

1/2

1/2

1/2

1/2

1/2

Amps (FLA)

1.3

1.3

1.3

2.4

2.4

2.4

2.4

2.4

2.4

Amps (LRA)

2.3

2.3

2.3

5.1

5.1

5.1

5.1

5.1

5.1

1. Horsepower per Compressor
2. Amp Draw Per Motor. Multiply Value by Number of Motors to Determine Total Amps.

39

Evaporator Fan

Condenser Motor

Compressor Motor

Unit Information

ELECTRICAL DATA – TGRG**C/TGRG**E SERIES
G48C-1K-100

G60E-1K-100

Unit Operating
Voltage Range

187-253

187-253

Minimum Circuit
Ampacity

34/34

43/43

Minimum Overcurrent
Protection Device Size

35/35

45/45

Maximum Overcurrent
Protection Device Size

50/50

60/60

No.

1

1

Volts

208/230

208/230

Phase

1

1

HP

4

5

RPM

3450

3450

Amps (RLA)

21.8/21.8

26.4/26.4

Amps (LRA)

117/117

134/134

No.

1

1

Volts

208/230

208/230

Phase

1

1

HP

1/3

1/3

Amps (FLA)

2

2

Amps (LRA)

3.9

3.9

No.

1

1

Volts

208/230

208/230

Phase

1

1

HP

3/4

1

Amps (FLA)

4.4

7.6

Amps (LRA)

9.5

0

1. Horsepower per Compressor
2. Amp Draw Per Motor. Multiply Value by Number of Motors to Determine Total Amps.

40

Evaporator Fan

Condenser Motor

Compressor Motor

Unit Information

ELECTRICAL DATA – TGRG**D SERIES
G24D-1K-40

G24D-1K-60

G24D-1K-80

G30D-1K-60

G30D-1K-80

G30D-1K-100

G36D-1K-80

G36D-1K-100

Unit Operating
Voltage Range

187-253

187-253

187-253

187-253

187-253

187-253

187-253

187-253

Minimum Circuit
Ampacity

21/21

21/21

21/21

24/24

24/24

24/24

27/27

27/27

Minimum Overcurrent
Protection Device Size

25/25

25/25

25/25

25/25

25/25

25/25

30/30

30/30

Maximum Overcurrent
Protection Device Size

30/30

30/30

30/30

35/35

35/35

35/35

40/40

40/40

No.

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

HP

2 1/6

2 1/6

2 1/6

2 2/3

2 2/3

2 2/3

3 1/3

3 1/3

RPM

3450

3450

3450

3450

3450

3450

3450

3450

Amps (RLA)

12.8/12.8

12.8/12.8

12.8/12.8

14.1/14.1

14.1/14.1

14.1/14.1

16.7/16.7

16.7/16.7

Amps (LRA)

58.3/58.3

58.3/58.3

58.3/58.3

73/73

73/73

73/73

79/79

79/79

No.

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

HP

1/3

1/3

1/3

1/3

1/3

1/3

1/3

1/3

Amps (FLA)

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

Amps (LRA)

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

No.

1

1

1

1

1

1

1

1

Volts

208/230

208/230

208/230

208/230

208/230

208/230

208/230

208/230

Phase

1

1

1

1

1

1

1

1

HP

1/3

1/3

1/3

1/2

1/2

1/2

1/2

1/2

Amps (FLA)

2.8

2.8

2.8

4.1

4.1

4.1

4.1

4.1

Amps (LRA)

0

0

0

0

0

0

0

0

1. Horsepower per Compressor
2. Amp Draw Per Motor. Multiply Value by Number of Motors to Determine Total Amps.

41

Evaporator Fan

Condenser Motor

Compressor Motor

Unit Information

ELECTRICAL DATA – TGRG**D SERIES
G42D-1K-100

G48D-1K-100

G48D-1K-100

Unit Operating
Voltage Range

187-253

187-253

187-253

Minimum Circuit
Ampacity

29/29

36/36

42/42

Minimum Overcurrent
Protection Device Size

30/30

40/40

45/45

Maximum Overcurrent
Protection Device Size

45/45

50/50

60/60

No.

1

1

1

Volts

208/230

208/230

208/230

Phase

1

1

1

HP

3 1/2

4

5

RPM

3450

3450

3450

Amps (RLA)

17.9/17.9

21.8/21.8

25.6/25.6

Amps (LRA)

112/112

117/117

118/118

No.

1

1

1

Volts

208/230

208/230

208/230

Phase

1

1

1

HP

1/3

1/3

1/3

Amps (FLA)

2

2

2

Amps (LRA)

3.9

3.9

3.9

No.

1

1

1

Volts

208/230

208/230

208/230
1

Phase

1

1

HP

1/2

3/4

1

Amps (FLA)

4.1

6

7.6

Amps (LRA)

0

0

0

1. Horsepower per Compressor
2. Amp Draw Per Motor. Multiply Value by Number of Motors to Determine Total Amps.

42

Heat
(See
(Tap 1)
Note
Below)

100,000 [29.31]

60,000 [17.58]
80,000 [23.45]
100,000 [29.31]

All
Inputs

40,000 [11.72]
60,000 [17.58]
80,000 [23.45]
100,000 [29.31]

All
Inputs

60,000 [17.58]
80,000 [23.45]

40,000 [11.72]

Heating
Input
BTU/HR [kW]

12 x 9 Blower
1 HP [746W]
3 Speed
( X13 Motor)

10 x 9 Blower
3/4 HP [559W]
3 Speed
(PSC Motor)

10 x 9 Blower
1/2 HP [373W]
3 Speed
(PSC Motor)

9 x 7 Blower
1/4 HP [186W]
2 Speed
( PSC Motor)

Blower Size/
Motor HP [W] &
# of Speeds

High
(Tap 3)

Low
(Tap 2)

Heat
Dedicated
(Tap 1)

High

Med

Low

High

Med

Low

High

Low

Motor
Speed

CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts

2.5 [8.79] – 4.0 [14.07]
24 x 24 x 1 [610 x 610 x 25]

2000 [944]
.09 [.022]

0.7 [.17]
0.8 [.20]
435 [205]
1020
149
562 [265]
1090
199
832 [393]
975
287
1033 [488]
995
351
1197 [565]
1045
412
1065 [503]
1016
363
1305 [616]
1100
455
1398 [660]
1134
517
1180 [557] 1117 [527]
955
1015
328
343
1640 [774] 1607 [758]
1089
1111
611
617
1792 [846] 1737 [820]
1147
1152
742
728

1800 [850]
.08 [.019]

0.6 [.15]
505 [238]
980
193
651 [307]
1070
221
896 [423]
940
305
1097 [518]
960
370
1266 [597]
1025
434
1107 [522]
988
380
1384 [653]
1088
484
1485 [701]
1126
548
1221 [576]
922
316
1678 [792]
1072
598
1843 [870]
1124
741

5.0 [17.59]
24 x 30 x 1 [610 x 762 x 1]

0.5 [.12]
560 [264]
940
171
721 [340]
1045
239
950 [448]
905
320
1137 [537]
920
386
1322 [624]
1005
454
1143 [539]
959
403
1451 [685]
1076
512
1560 [736]
1118
576
1270 [599]
892
308
1714 [809]
1041
586
1879 [887]
1112
735

1600 [755]
.07 [.017]

0.4 [.10]
602 [284]
905
191
777 [367]
1020
253
996 [470]
865
331
1162 [548]
890
397
1370 [647]
985
473
1171 [553]
923
427
1511 [713]
1058
539
1627 [768]
1110
604
1307 [617]
860
295
1752 [827]
1019
578
1909 [901]
1076
723

1440 [661]
.05 [.012]

0.3 [.07]
634 [299]
870
203
822 [388]
995
266
1032 [490]
820
341
1179 [556]
855
407
1415 [668]
965
493
1191 [562]
886
450
1566 [739]
1040
567
1693 [799]
1102
632
1352 [638]
829
287
1782 [841]
994
564
1949 [920]
1070
711

Side Discharge — Wet Coil

External Static Pressure — Inches W.C. [kPa]

0.2 [.05]
657 [310]
785
214
861 [406]
965
278
1059 [500]
775
349
1197 [565]
810
415
1461 [670[
930
514
1202 [567]
810
468
1620 [765]
1019
596
1763[832]
1094
663
1386 [654]
794
273
1821 [859]
968
555
1985 [937]
1033
701

1200 [566]
.03 [.007]

0.1 [.02]
675 [319]
695
221
898 [424]
940
292
1076 [508]
730
356
1222 [577]
765
423
1514 [715]
895
538
1204 [568]
734
476
1674 [790]
997
625
1843[870]
1085
699
1418 [669]
774
267
1858 [877]
944
541
2017 [952]
1018
690

DOWN DISCHARGE PRESSURE DROP (ADD TO EXTERNAL STATIC PRESSURE)
CFM [L/s]
600 [283]
800 [378]
1000 [472]
Pressure Drop—Inches W.C. [kPa]
.00
.01 [.002]
.02 [.005]
MINIMUM RECOMMENDED FILTER SIZES
Nominal Cooling Capacity Tons [kW]
2.0 [7.03]
Minimum Filter Size—Inches [mm]
20 x 20 x 1 [508 x 508 x 25]

NOTES:
5 ton cooling speed must be changed to low cool for ARI testing.

5.0 [17.59]

High

(See
Note
Below)

Low

Low

High

3.5 [12.31]

4.0 [14.07]

Low

Med

3.0 [10.55]

High

Low

Low

2.5 [8.79]

Low

High

High

Heat

Cool

Motor Speed
From Factory

High

2.0 [7.03]

Nominal
Cooling
Capacity
Tons [kW]

INDOOR AIRFLOW PERFORMANCE — 208 VOLTS

XIII. AIRFLOW PERFORMANCE DATA
INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE GAS ELECTRIC UNITS–TGRG**C/TGRG**E
DIRECT DRIVE

43

44

Low

Heat
(See
(Tap 1)
Note
Below)

High

(See
Note
Below)

100,000 [29.31]

60,000 [17.58]
80,000 [23.45]
100,000 [29.31]

All
Inputs

40,000 [11.72]
60,000 [17.58]
80,000 [23.45]
100,000 [29.31]

All
Inputs

60,000 [17.58]
80,000 [23.45]

40,000 [11.72]

Heating
Input
BTU/HR [kW]

12 x 9 Blower
1 HP [746W]
3 Speed
(X13 Motor)

10 x 9 Blower
3/4 HP [559W]
3 Speed
(PSC Motor)

10 x 9 Blower
1/2 HP [373W]
3 Speed
(PSC Motor)

9 x 7 Blower
1/4 HP [186W]
2 Speed
(PSC Motor)

Blower Size/
Motor HP [W] &
# of Speeds

NOTES: 5 ton cooling speed must be changed to low cool for ARI testing.

5.0 [17.59]

4.0 [14.07]

Low

High

3.5 [12.31]

High

Low

Med

3.0 [10.55]

Low

Low

High

Low

High

High

Heat

Cool

Motor Speed
From Factory

2.5 [8.79]

2.0 [7.03]

Nominal
Cooling
Capacity
Tons [kW]

INDOOR AIRFLOW PERFORMANCE — 230 VOLTS

High
(Tap 3)

Low
(Tap 2)

Heat
Dedicated
(Tap 1)

High

Med

Low

High

Med

Low

High

Low

Motor
Speed

CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts
CFM[L/s]
RPM
Watts

0.1 [.02]
771 [364]
825
253
946 [446]
990
315
1206 [569]
760
419
1411 [666]
865
498
1641 [774]
980
589
1412 [666]
859
557
1793[846]
1053
667
1889[892]
1110
736
1423 [672]
776
272
1872 [883]
956
562
2046 [966]
1035
721

0.2 [.05]
751 [354]
870
242
922 [435]
1015
303
1182 [558]
815
406
1368 [646]
900
481
1577 [744]
1000
565
1395 [658]
905
530
1731[817]
1067
637
1826[862]
1117
715
1390 [656]
796
278
1847 [872]
973
572
2010 [949]
1046
731

0.3 [.07]
725 [342]
910
230
882 [416]
1035
288
1157 [546]
870
394
1327 [626]
935
464
1515 [715]
1020
543
1371 [647]
951
506
1665 [786]
1080
606
1753[827]
1124
683
1357 [640]
830
292
1808 [853]
1010
584
1980 [934]
1079
743

0.4 [.10]
691 [326]
950
217
830 [392]
1055
273
1128 [532]
910
381
1285 [606]
970
447
1455 [687]
1035
523
1339 [632]
981
483
1594 [752]
1091
574
1672 [789]
1129
646
1311 [619]
861
300
1772 [836]
1023
598
1942 [917]
1086
754

0.5 [.12]
654 [304]
985
204
769 [363]
1070
257
1091 [515]
950
368
1238 [584]
1000
430
1393 [657]
1050
503
1296 [612]
1011
461
1519 [717]
1101
543
1586 [749]
1133
608
1377 [603]
895
315
1743 [823]
1057
613
1904 [899]
1114
770

0.6 [.15]
584 [276]
1010
189
701 [331]
1085
241
1044 [493]
975
353
1183 [558]
1020
411
1329 [627]
1065
481
1242 [586]
1034
437
1440 [680]
1110
512
1499 [707]
1139
574
1233 [582]
927
326
1703 [804]
1085
622
1867 [881]
1141
777

Side Discharge — Wet Coil

0.7 [.17]
546 [258]
1030
181
630 [298]
1100
226
983 [464]
1000
334
1116 [527]
1035
391
1262 [596]
1080
456
1176 [555]
1057
409
1356 [640]
1119
483
1413 [667]
1144
551
1192 [563]
958
337
1670 [788]
1110
636
1822 [860]
1171
770

External Static Pressure — Inches W.C. [kPa]

1137 [537]
999
352
1639 [774]
1146
646
1758 [839]
1163
751

0.8 [.20]

INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE GAS ELECTRIC UNITS–TGRG**C/TGRG**E
DIRECT DRIVE

Motor Speed
from
Factory
Cool
Heat

Heating
Input
BTU/Hr [kW]

Blower Size/
Motor HP [W] &
# of Speeds

Motor Speed

External Static Pressure - Inches W.C. [kPa]
(Side Discharge-Wet Coil)

Down Discharge Pressure Drop (Add to External Static Pressure)
CFM [L/s]
600 [283]
Pressure Drop - Inches W.C. [kPa]
0

Heat
Dedicated
(Tap 1)

800 [378]
.02 [.005]

1000 [472]
.05 [.012]

1200 [566]
.07 [.017]

1400 [661]
.1 [.025]

1600 [755]
.12 [.030]

0.1 [.02]
0.2 [.05]
0.3 [.07]
0.4 [.10]
0.5 [.12]
0.6 [.15]
CFM [l/s]
821 [387]
799 [377]
775 [366]
742 [350]
706 [333]
681 [321]
RPM
878
903
953
996
1032
1075
Watts
131
134
142
145
147
154
All Inputs
9 x 7 Blower
High
CFM [l/s]
843 [398]
820 [387]
786 [371]
760 [359]
726 [343]
699 [330]
Low Cool
1/3 HP [249 W]
Heat
2.0
40,000 [11.72]
Cool
RPM
896
924
961
1015
1045
1092
(Tap 2)
3 Speed
(Tap 1)
[7.03]
60,000 [17.58]
(Tap 3)
Watts
141
144
147
155
157
163
X13 Motor
80,000 [23.45]
CFM [l/s]
896 [423]
884 [417]
847 [400]
825 [389]
789 [372]
752 [355]
High Cool
RPM
935
966
1008
1047
1084
1118
(Tap 3)
Watts
165
171
175
182
184
186
Heat
CFM [l/s]
1153 [544]
1126 [531]
1087 [513]
1042 [492]
1002 [473]
966 [456]
Dedicated
RPM
866
887
930
966
1010
1038
All Inputs
(Tap 1)
Watts
207
210
220
226
234
241
10 x 9 Blower
High
CFM [l/s]
1030 [486]
1010 [477]
967 [456]
922 [435]
868 [410]
825 [389]
2.5
Low Cool
1/2 HP [373W]
Heat
40,000 [11.72]
Cool
RPM
794
829
868
912
956
1002
[8.79]
(Tap 2)
3 Speed
(Tap 1)
60,000 [17.58]
(Tap 3)
Watts
155
164
169
178
183
192
X13 Motor
80,000 [23.45]
CFM [l/s]
1242 [586]
1213 [572]
1173 [554]
1132 [534]
1086 [513]
1044 [493]
100,000 [29.31]
High Cool
RPM
912
934
972
1012
1055
1081
(Tap 3)
Watts
249
252
262
271
275
282
Heat
CFM [l/s]
1153 [544]
1126 [531]
1087 [513]
1042 [492]
1002 [473]
966 [456]
Dedicated
RPM
866
887
930
966
1010
1038
All Inputs
(Tap 1)
Watts
207
210
220
226
234
241
10 x 9 Blower
High
CFM [l/s]
1242 [586]
1213 [572]
1173 [554]
1132 [534]
1086 [513]
1044 [493]
40,000 [11.72]
Heat
3.0
Low Cool
1/2 HP [373W]
Cool
RPM
912
934
972
1012
1055
1081
60,000 [17.58]
(Tap 1)
[10.55]
(Tap 2)
3 Speed
(Tap 3)
Watts
249
252
262
271
275
282
80,000 [23.45]
X13 Motor
CFM [l/s]
1338 [631]
1309 [618]
1278 [603]
1234 [582]
1182 [558]
1135 [536]
100,000 [29.31]
High Cool
RPM
963
983
1016
1049
1096
1121
(Tap 3)
Watts
304
307
316
321
328
332
Heat
CFM [l/s]
1228 [580]
1187 [560]
1140 [538]
1105 [522]
1062 [501]
1008 [476]
Dedicated
RPM
761
808
841
884
920
960
All Inputs
(Tap 1)
Watts
150
170
180
183
185
190
10 x 9 Blower
High
CFM [l/s]
1454 [686]
1433 [676]
1392 [657]
1354 [639]
1322 [624]
1283 [606]
Heat
40,000 [11.72]
3.5
Low Cool
1/2 HP [373W]
Cool
RPM
923
946
976
1015
1044
1085
(Tap 1)
60,000 [17.58]
[12.31]
(Tap 2)
3 Speed
(Tap 3)
Watts
301
309
316
327
337
348
80,000 [23.45]
X13 Motor
CFM [l/s]
1544 [729]
1531 [723]
1473 [695]
1440 [680]
1398 [660]
1361 [642]
100,000 [29.31]
High Cool
RPM
958
973
1025
1046
1078
1109
(Tap 3)
Watts
343
350
364
371
382
391
Heat
CFM [l/s]
1454 [686]
1433 [676]
1392 [657]
1354 [639]
1322 [624]
1283 [606]
Dedicated
RPM
923
946
976
1015
1044
1085
(Tap 1)
Watts
301
309
316
327
337
348
All Inputs
10 x 9 Blower
High
CFM [l/s]
1642 [775]
1621 [765]
1584 [748]
1542 [728]
1496 [706]
1451 [685]
Heat
4.0
Low Cool
3/4 HP [559W]
60,000 [17.58]
Cool
RPM
1006
1022
1064
1090
1114
1151
[14.07]
(Tap 1)
(Tap 2)
3 Speed
80,000 [23.45]
(Tap 3)
Watts
405
412
422
435
442
449
X13 Motor
100,000 [29.31]
CFM [l/s]
1896 [895]
1863 [879]
1776 [838]
1694 [799]
1603 [757]
1528 [721]
High Cool
RPM
1146
1147
1159
1171
1173
1180
(Tap 3)
Watts
624
614
583
554
522
497
Heat
CFM [l/s]
1418 [669]
1386 [654]
1352 [638]
1307 [617]
1270 [599]
1221 [576]
Dedicated
RPM
774
794
829
860
892
922
1st Stage
(Tap 1)
Watts
267
273
287
295
308
316
Cool
1st Stage Cool
CFM [l/s]
1310 [618]
1288 [608]
1238 [584]
1204 [568]
1149 [542]
1104 [521]
(Tap 2)
Dedicated
12 x 9 Blower
RPM
731
757
789
826
857
894
(Tap 2)
Watts
218
229
237
250
258
270
Heat
5.0
1 HP [746W]
-------100,000 [29.31]
[17.59]
(Tap 1)
4 Speed
2nd Stage
CFM [l/s]
1858 [877]
1821 [859]
1782 [841]
1752 [827]
1714 [809]
1678 [792]
X13 Motor
Low Cool
RPM
944
968
994
1019
1041
1072
2nd Stage
(Tap 3)
Watts
541
555
564
578
586
598
High Cool
2nd Stage
CFM [l/s]
2017 [952]
1985 [937]
1949 [920]
1909 [901]
1879 [887]
1843 [870]
(Tap 4)
High Cool
RPM
1018
1033
1070
1076
1112
1124
(Tap 4)
Watts
690
701
711
723
735
741
Notes: (1) Do not operate 2 ton models below 700 CFM. (2) Do not operate 2-1/2 or 3 ton models below 875 CFM. (3) Cooling speed must be changed to Low Cool to achieve ARI performance (all models).

Nominal
Cooling
Capacity
Tons [kW]

Indoor Airflow Performance - 208 Volts

1800 [849]
.15 [.037]

0.7 [.17]
641 [303]
1119
156
662 [312]
1125
165
720 [340]
1154
189
903 [426]
1082
246
763 [360]
1040
195
1003 [473]
1109
283
903 [426]
1082
246
1003 [473]
1109
283
1087 [513]
1142
330
959 [453]
999
195
1238 [584]
1126
356
1317 [622]
1147
401
1238 [584]
1126
356
1396 [659]
1160
440
1424 [672]
1188
467
1180 [557]
955
328
1035 [488]
937
280
1640 [774]
1089
611
1792 [846]
1147
742

2000 [944]
.17 [.042]

0.8 [.20]
611 [288]
1176
161
608 [287]
1172
164
642 [303]
1176
174
856 [404]
1121
251
709 [335]
1093
203
952 [449]
1146
288
856 [404]
1121
251
952 [449]
1146
288
1007 [475]
1159
315
911 [430]
1038
215
1192 [563]
1146
363
1263 [596]
1163
396
1192 [563]
1146
363
1299 [613]
1172
414
1316 [621]
1195
432
1117 [527]
1015
343
971 [458]
993
294
1607 [758]
1111
617
1737 [820]
1152
728

INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE GAS ELECTRIC UNITS–TGRG**D
DIRECT DRIVE

45

46

Motor Speed
from
Factory
Cool
Heat

Heating
Input
BTU/Hr [kW]

Blower Size/
Motor HP [W] &
# of Speeds

Motor Speed

External Static Pressure - Inches W.C. [kPa]
(Side Discharge-Wet Coil)

Down Discharge Pressure Drop (Add to External Static Pressure)
CFM [L/s]
600 [283]
Pressure Drop - Inches W.C. [kPa]
0

Heat
Dedicated
(Tap 1)

800 [378]
.02 [.005]

1000 [472]
.05 [.012]

1200 [566]
.07 [.017]

1400 [661]
.1 [.025]

1600 [755]
.12 [.030]

0.1 [.02]
0.2 [.05]
0.3 [.07]
0.4 [.10]
0.5 [.12]
0.6 [.15]
CFM [l/s]
829 [391]
808 [381]
789 [372]
756 [357]
737 [348]
697 [329]
RPM
890
915
961
1000
1046
1089
Watts
137
139
148
151
160
163
All Inputs
9 x 7 Blower
High
CFM [l/s]
853 [403]
832 [393]
804 [379]
779 [368]
745 [352]
724 [342]
Low Cool
1/3 HP [249 W]
Heat
2.0
40,000 [11.72]
Cool
RPM
901
928
984
1013
1054
1099
(Tap 2)
3 Speed
(Tap 1)
[7.03]
60,000 [17.58]
(Tap 3)
Watts
146
149
159
161
165
173
X13 Motor
80,000 [23.45]
CFM [l/s]
912 [430]
896 [423]
863 [407]
839 [396]
815 [385]
787 [371]
High Cool
RPM
940
977
1017
1062
1088
1139
(Tap 3)
Watts
171
179
183
192
194
203
Heat
CFM [l/s]
1169 [552]
1140 [538]
1111 [524]
1068 [504]
1030 [486]
995 [470]
Dedicated
RPM
868
893
932
978
1010
1048
All Inputs
(Tap 1)
Watts
213
217
228
239
244
254
10 x 9 Blower
High
CFM [l/s]
1039 [490]
1021 [482]
971 [458]
932 [440]
887 [419]
839 [396]
2.5
Low Cool
1/2 HP [373W]
Heat
40,000 [11.72]
Cool
RPM
798
833
878
922
955
1011
[8.79]
(Tap 2)
3 Speed
(Tap 1)
60,000 [17.58]
(Tap 3)
Watts
159
168
175
185
189
200
X13 Motor
80,000 [23.45]
CFM [l/s]
1256 [593]
1231 [581]
1201 [567]
1161 [548]
1115 [526]
1076 [508]
100,000 [29.31]
High Cool
RPM
921
942
976
1018
1053
1093
(Tap 3)
Watts
259
263
272
284
290
299
Heat
CFM [l/s]
1169 [552]
1140 [538]
1111 [524]
1068 [504]
1030 [486]
995 [470]
Dedicated
RPM
868
893
932
978
1010
1048
All Inputs
(Tap 1)
Watts
213
217
228
239
244
254
10 x 9 Blower
High
CFM [l/s]
1256 [593]
1231 [581]
1201 [567]
1161 [548]
1115 [526]
1076 [508]
Heat
40,000 [11.72]
3.0
Low Cool
1/2 HP [373W]
Cool
RPM
921
942
976
1018
1053
1093
(Tap 1)
60,000 [17.58]
[10.55]
(Tap 2)
3 Speed
(Tap 3)
Watts
259
263
272
284
290
299
80,000 [23.45]
X13 Motor
CFM [l/s]
1357 [640]
1330 [628]
1292 [610]
1262 [596]
1225 [578]
1178 [556]
100,000 [29.31]
High Cool
RPM
974
1003
1036
1071
1103
1134
(Tap 3)
Watts
318
323
333
343
347
356
Heat
CFM [l/s]
1241 [586]
1203 [568]
1155 [545]
1119 [528]
1082 [511]
1032 [487]
Dedicated
RPM
771
815
848
886
932
965
All Inputs
(Tap 1)
Watts
155
162
170
182
193
200
10 x 9 Blower
High
CFM [l/s]
1459 [689]
1438 [679]
1409 [665]
1371 [647]
1337 [631]
1296 [612]
Heat
40,000 [11.72]
3.5
Low Cool
1/2 HP [373W]
Cool
RPM
931
958
993
1031
1058
1097
(Tap 1)
60,000 [17.58]
[12.31]
(Tap 2)
3 Speed
(Tap 3)
Watts
308
319
331
339
349
362
80,000 [23.45]
X13 Motor
CFM [l/s]
1562 [737]
1538 [726]
1500 [708]
1456 [687]
1434 [677]
1383 [653]
100,000 [29.31]
High Cool
RPM
960
991
1017
1055
1089
1121
(Tap 3)
Watts
353
364
375
388
398
408
Heat
CFM [l/s]
1459 [689]
1438 [679]
1409 [665]
1371 [647]
1337 [631]
1296 [612]
Dedicated
RPM
931
958
993
1031
1058
1097
(Tap 1)
Watts
308
319
331
339
349
362
All Inputs
10 x 9 Blower
High
CFM [l/s]
1662 [784]
1648 [778]
1607 [758]
1579 [745]
1538 [726]
1477 [697]
Heat
4.0
Low Cool
3/4 HP [559W]
60,000 [17.58]
Cool
RPM
1016
1037
1072
1098
1129
1156
[14.07]
(Tap 1)
(Tap 2)
3 Speed
80,000 [23.45]
(Tap 3)
Watts
421
429
443
453
465
465
X13 Motor
100,000 [29.31]
CFM [l/s]
1910 [901]
1873 [884]
1798 [849]
1715 [809]
1621 [765]
1536 [725]
High Cool
RPM
1149
1160
1163
1169
1175
1187
(Tap 3)
Watts
638
625
601
571
536
506
Heat
CFM [l/s]
1423 [672]
1390 [656]
1357 [640]
1311 [619]
1277 [603]
1233 [582]
Dedicated
RPM
776
796
830
861
895
927
1st Stage
(Tap 1)
Watts
272
278
292
300
315
326
Cool
1st Stage Cool
CFM [l/s]
1319 [622]
1289 [608]
1242 [586]
1201 [567]
1148 [542]
1111 [524]
(Tap 2)
Dedicated
12 x 9 Blower
RPM
728
760
790
832
859
894
(Tap 2)
Watts
222
234
241
256
263
276
Heat
5.0
1 HP [746W]
-------100,000 [29.31]
[17.59]
(Tap 1)
4 Speed
2nd Stage
CFM [l/s]
1872 [883]
1847 [872]
1808 [853]
1772 [836]
1743 [823]
1703 [804]
X13 Motor
Low Cool
RPM
956
973
1010
1023
1057
1085
2nd Stage
(Tap 3)
Watts
562
572
584
598
613
622
High Cool
2nd Stage
CFM [l/s]
2046 [966]
2010 [949]
1980 [934]
1942 [917]
1904 [899]
1867 [881]
(Tap 4)
High Cool
RPM
1035
1046
1079
1086
1114
1141
(Tap 4)
Watts
721
731
743
754
770
777
Notes: (1) Do not operate 2 ton models below 700 CFM. (2) Do not operate 2-1/2 or 3 ton models below 875 CFM. (3) Cooling speed must be changed to Low Cool to achieve ARI performance (all models).

Nominal
Cooling
Capacity
Tons [kW]

Indoor Airflow Performance - 230 Volts

1800 [849]
.15 [.037]

0.7 [.17]
668 [315]
1121
166
688 [325]
1137
176
736 [347]
1165
199
949 [448]
1086
258
797 [376]
1061
210
1043 [492]
1131
309
949 [448]
1086
258
1043 [492]
1131
309
1110 [524]
1153
345
994 [469]
1004
210
1258 [594]
1133
373
1339 [632]
1154
418
1258 [594]
1133
373
1392 [657]
1169
446
1422 [671]
1184
469
1192 [563]
958
337
1047 [494]
939
287
1670 [788]
1110
636
1822 [860]
1171
770

2000 [944]
.17 [.042]

0.8 [.20]
615 [290]
1173
167
630 [297]
1185
173
656 [310]
1181
182
895 [422]
1129
268
735 [347]
1093
213
999 [471]
1149
307
895 [422]
1129
268
999 [471]
1149
307
1033 [488]
1169
328
950 [448]
1044
220
1223 [577]
1158
381
1270 [599]
1169
405
1223 [577]
1158
381
1305 [616]
1179
420
1323 [624]
1205
440
1137 [537]
999
352
985 [465]
992
304
1639 [774]
1146
646
1758 [830]
1163
751

INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE GAS ELECTRIC UNITS–TGRG**D
DIRECT DRIVE

XIV. WIRING DIAGRAMS
FIGURE 25
WIRING DIAGRAM

47

FIGURE 26
WIRING DIAGRAM

48

5 TON
4 TON
LOW HEAT
HIGH COOL

3 TON
LOW - HEAT
MED - COOL

FIGURE 27

WIRING DIAGRAM

49

FIGURE 28
WIRING DIAGRAM

50

FIGURE 29
WIRING DIAGRAM

51

XV. CHARGE CHARTS
FIGURE 30
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E – 2 TON COOLING
SYSTEM CHARGE CHART - REFRIGERANT 410A

52

FIGURE 31
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E
2 1/2 TON COOLING
2 1/2 TON–COOLING
SYSTEM
CHARGE
CHART
REFRIGERANT410A
410A
SYSTEM CHARGE CHART -- REFRIGERANT

525

115

500

105

450
425

95

400
375

85

350
325

75

300
275

65

250

55

OUTDOOR AMBIENT (°F DB)

PRESSURE AT LIQUID SERVICE PORT - PSIG

475

225
200
175

120

125

130

135

140

145

150

155

160

165

170

Pressure at Suction Service Port (psig)
BEFORE FINAL REFRIGERANT CHECK, INDOOR RETURN AIR TEMPERATURE SHOULD BE AT COMFORT
CONDITIONS FOR MOST ACCURATE RESULTS.

CONNECT PRESSURE GAUGES TO SUCTION AND LIQUID PORTS ON UNIT.
MEASURE AIR TEMPERATURE TO OUTDOOR COIL.
PLACE AN "X" ON THE APPROPRI ATE CHART WHERE THE SUCTION AND LIQUID PRESSURES CROSS.
IF "X" IS BELOW AMBIENT TEMPERATURE LINE, ADD CHARGE AND REPEAT STEP 3.
IF "X" IS ABOVE AMBIENT TEMPERATURE LINE, RECOVER EXCESS CHARGE AND REPEAT STEP 3.

92-22904- 41 -02

53

FIGURE 32
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E – 3 TON COOLING
SYSTEM CHARGE CHART - REFRIGERANT 410A

54

FIGURE 33
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E – 3 1/2 TON COOLING
SYSTEM CHARGE CHART - REFRIGERANT 410A

55

FIGURE 34
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E – 4 TON COOLING
SYSTEM CHARGE CHART - REFRIGERANT 410A

56

FIGURE 35
SYSTEM CHARGE CHARTS

TGRG**C/TGRG**E
– 5 TON COOLING
5 TON COOLING
SYSTEM CHARGE CHART

R-410A

REFRIGERANT

550
525
500

115

475
450
105

425
400

95

375
350

85

325
300

75

275
250

65

225

55

200
175
150
100

110

INSTRUCTIONS:

120

130

140

150

160

170

180

190

200

210

220

Pressure at Suction Service Port (psig)

1. CONNECT PRESSURE GUAGES TO SUCTION AND LIQUID PORTS AT OUTDOOR UNIT.
2. MEASURE AIR TEMPERATURE TO THE UNIT (OUTDOOR DRY BULB AMBIENT).
3. PLACE AN “X” ON THE CHART WHERE THE SUCTION AND LIQUID PRESSURE CROSS.
4. IF “X” IS BELOW OUTDOOR TEMPERATURE LINE, ADD CHARGE AND REPEAT 3.
5. IF “X” IS ABOVE OUTDOOR TEMPERATURE LINE, RECOVER CHARGE AND REPEAT.
92-22904-57-01

57

FIGURE 36
SYSTEM CHARGE CHARTS

TGRG**D – 5 TON COOLING
1st (LOW) STAGE CHARGE CHART
R-410A REFRIGERANT

58

FIGURE 37
SYSTEM CHARGE CHARTS

TGRG**D – 5 TON COOLING
2nd (HIGH) STAGE CHARGE CHART
R-410A REFRIGERANT

59

XVI.
XVII.TROUBLESHOOTING
TROUBLESHOOTING
FIGURE 38
59
FIGURE
!

COOLING TROUBLE
TROUBLE SHOOTING
SHOOTINGCHART
CHART

WARNING

DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY BREAK ONLY ONE SIDE. FAILURE
TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.
SYMPTOM

POSSIBLE CAUSE

Unit will not run

• Power off or loose electrical connection

•

• Thermostat out of calibration-set too high
• Failed contactor

•
•

• Blown fuses
• Transformer defective
• High pressure control open (if provided)

•
•
•

• Interconnecting low voltage wiring damaged

•

• Run or start capacitor failed (single phase only)
• Start relay defective 9single phase only)
• Loose connection

•
•
•

• Compressor stuck, grounded or open motor winding
open internal overload.
• Low voltage condition

•

• Low voltage condition

•

•
•
•
•
•

•
•
•
•
•

Recalculate load
Check - should be approximately 400 CFM per ton.
Charge per procedure attached to unit service panel.
Recover refrigerant, evacuate & recharge, add filter drier
At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.

• Incorrect voltage

•

• Defective overload protector
• Refrigerant undercharge

•
•

At compressor terminals, voltage must be ± 10% of
nameplate marking when unit is operating.
Replace - check for correct voltage
Add refrigerant

• Low evaporator airflow

•

Increase speed of blower or reduce restriction - replace air
filter

High head-low vapor pressures

•
•
•
•

Restriction in liquid line, expansion device or filter drier
Flow check piston size too small
Incorrect capillary tubes
TXV does not open

•
•
•
•

Remove or replace defective component
Change to correct size piston
Change coil assembly
Replace TXV

High head-high or normal vapor
pressure - Cooling mode

•
•
•
•

Dirty condenser coil
Refrigerant overcharge
Condenser fan not running
Air or non-condensibles in system

•
•
•
•

Clean coil
Correct system charge
Repair or replace
Recover refrigerant, evacuate & recharge

Low head-high vapor pressures

• Defective Compressor valves
• Incorrect capillary tubes

•
•

Replace compressor
Replace coil assembly

Low vapor - cool compressor iced evaporator coil

• Low evaporator airflow

•

• Operating below 65°F outdoors
• Moisture in system

•
•

Increase speed of blower or reduce restriction - replace air
filter
Add Low Ambient Kit
Recover refrigerant - evacuate & recharge - add filter drier

• Excessive load
• Defective compressor

•
•

Recheck load calculation
Replace

• TXV hunting

•

• Air or non-condensibles in system

•

Check TXV bulb clamp - check air distribution on coil - replace
TXV
Recover refrigerant, evacuate & recharge

Gurgle or pulsing noise at
expansion device or liquid line

• Air or non-condensibles in system

•

Recover refrigerant, evacuate & recharge

Circulating air blower & inducer
run continuously,
compressor will not start

• Manual reset overtemperature control
• tripped
• Wire loose in limit circuit

•

Reset or replace

•

Check wiring

Condenser fan runs, compressor
doesn’t

Insufficient cooling

Compressor short cycles

Registers sweat

High vapor pressure

Fluctuating head & vapor
pressures

104
60

Improperly sized unit
Improper airflow
Incorrect refrigerant charge
Air, non-condensibles or moisture in system
Incorrect voltage

REMEDY
Check for correct voltage at compressor contactor in control
box
Reset
Check for 24 volts at contactor coil - replace if contacts are
open
Replace fuses
Check wiring-replace transformer
Reset-also see high head pressure remedy-The high pressure
control opens at 610 PSIG
Replace thermostat wiring
Replace
Replace
Check for correct voltage at compressor check & tighten all connections
Wait at least 2 hours for overload to reset.
If still open, replace the compressor.
At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.
Add start kit components

FIGURE 39

15 SECOND PREPURGE

61

62

63

64

CM 0110



---

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Title                           : 92-21916-34 Rev. 02 Heat Controller TGRG**C 13 and TGRG**D 14 seer R-410A Gas/Electric Package Unit Installation Instructions
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Description                     : Heat Controller TGRG**C 13 and TGRG**D 14 seer R-410A Gas/Electric Package Unit Installation Instructions Revision 02
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Subject                         : Heat Controller TGRG**C 13 and TGRG**D 14 seer R-410A Gas/Electric Package Unit Installation Instructions Revision 02

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