Amana PGB58B Installation Instructions Manual

Gas-electric package unit cooling and heating

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MODELS

PGC(24-60)B and

PGB58B

Unit Specifications ........................................ 2

II.

Safety Information ......................................... 6

III.

General Information ...................................... 7

IV.

Rigging and Handling ................................... 9

Gas Piping .................................................... 10

Vl. Electrical Wiring .......................................... 12

Vll. Circulating Air and Filters .......................... 13

VIII. Flue Vent ....................................................... 16

IX. Condensate Drain ........................................ 16

Heating Sequence of Operations ............... 18

XI. Cooling Sequence of Operations .............. 18

XIl. Startup and Adjustment .............................. 18

XIII. Maintenance ................................................. 24

XIV. Accessories and Functional Parts ............ 26

XV. Typical Cooling Performance Data ............ 27

XVI. Wiring Diagram ............................................ 29

RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION

As a professional installer you have an obligation to

know the product better than the customer. This in-

cludes all safety precautions and related items.

Prior to actual installation, thoroughly familiarize your-

self with this Instruction Manual. Pay special atten-

tion to all safety warnings. Often during installation or

repair it is possible to place yourself in a position which

is more hazardous than when the unit is in operation.

Affix These Installation Instructions Adjacent To The Appliance.

May 1998 (2)

Heating Air Conditioning

ATTENTION INSTALLING PERSONNEL

Amana

Fayetteville, TN 37334

Gas-Electric Package

Unit

Cooling and Heating

Installation Instructions

Remember, it is your responsibility to install the

product safely and to know it well enough to be able

to instruct a customer in its safe use.

Safety is a matter of common sense...a matter of think-

ing before acting. Most dealers have a list of specific

good safety practices...follow them.

The precautions listed in this Installation Manual

should not supersede existing practices but should

be considered as supplemental information.

11073904

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Summary of Contents for Amana PGB58B

Page 1: Table Of Contents
MODELS PGC(24-60)B and PGB58B Table of Contents Unit Specifications ... 2 Safety Information ... 6 III. General Information ... 7 Rigging and Handling ... 9 Gas Piping ... 10 Vl. Electrical Wiring ... 12 Vll. Circulating Air and Filters ... 13 VIII.
Page 2: Unit Specifications
I. Unit Specifications MODEL PGC24B0452A Cooling Capacity Btuh SEER Heating Input Btuh Output Btuh AFUE Temperature Rise °F Number of Burners Compressor R.L. Amps L.R. Amps Condenser Coil Face Area (sq. ft.) Rows Deep Fins/Inch Condenser Fan Diameter (in.) Condenser Fan Motor Horsepower R.L.
Page 3 MODEL PGC42B0902A Cooling Capacity Btuh 42,000 SEER 12.20 Heating Input Btuh 90,000 Output Btuh 72,000 AFUE 81.4 Temperature Rise °F 25-55 Number of Burners Compressor R.L. Amps L.R. Amps Condenser Coil Face Area (sq. ft.) 17.2 Row s Deep Fins/Inch Condenser Fan Diameter (in.) 3500...
Page 4 MODEL PGB58B0902A Cooling Capacity Btuh SEER Heating Input Btuh Output Btuh AFUE Temperature Rise °F Number of Burners Compressor R.L. Amps L.R. Amps Condenser Coil Face Area (sq. ft.) Rows Deep Fins/Inch Condenser Fan Diameter (in.) Condenser Fan Motor Horsepower R.L.
Page 5 Nominal Model Cooling Capacity (MBh) PGC24B0452A 24000 PGC24B0702A 24000 PGC30B0702A 30000 PGC36BO702A 36000 PGC36B0902A 36000 PGC42B0902A 42000 PGC42B1152A 42000 PGC48B0902A 48000 PGC48B1152A 48000 PGC60B0902A 60000 PGC60B1352A 60000 1. Installation is to be adjusted to obtain temperature rise within the range specified on the rating plate. 2.
Page 6: Ii. Safety Information
To The Owner It is important that you complete the owner registration card and mail it today. This will assist Amana in contact- ing you if any service or warranty information should change in the future. When completing the registration card, be sure to include the Model, Manufacturing and Serial Numbers, plus the installation date.
Page 7: Iii. General Information
• If vertical air discharge is used and the unit is in- stalled on combustible flooring or class A, B, or C roofing material, then the Amana roof curb (PRC3A or PRC5A) listed on the unit nameplate is required. III. General Information...
Page 8 Figure 1 Required Clearances For All Installations...
Page 9: Rigging And Handling
Important: If using bottom discharge with roof curb, ductwork should be attached to the curb prior to install- ing the unit. Ductwork dimensions are shown in Amana Roof Curb Installation Instructions. Refer to the Amana Roof Curb Installation Instructions for proper curb installation.
Page 10: Gas Piping
V. Gas Piping IMPORTANT NOTE: This furnace is factory set to oper- ate on natural gas at the altitudes shown on the rating plate. If operation at higher altitudes and/or propane gas operation is required, obtain and install the proper con- version kit(s) before operating this furnace.
Page 11 Figure 3 Proper Piping Practice Checking The Gas Piping CAUTION To avoid the possibility of personal in- jury, property damage or fire, the follow- ing instructions must be performed re- garding gas connections and pressure testing: • This unit and its gas connections must be leak tested before placing in opera- tion.
Page 12: Vl. Electrical Wiring
Special pipe dope must be used when assembling pip- ing for this gas as it will quickly dissolve white lead or most standard commercial compounds. Shellac base compounds resistant to the actions of liquefied petro- leum gases such as Gasolac, Static, Clyde or John Crane are satisfactory.
Page 13: Vll. Circulating Air And Filters
Please refer to the unit wiring diagram for electrical con- nections. When installed, the unit must be electrically grounded in accordance with local codes or in the ab- sence of local codes with the latest edition of National Electrical Code, ANSI/NFPA No. 70. WARNING To avoid death or personal injury due to electrical shock, wiring to the unit must...
Page 14 Rooftop Curb Junction Low Voltage Entrance Typical Electrical Wiring Typical Wiring (Ground Level) Typical Wiring (Rooftop) Disconnect Switch High Voltage Source High Voltage Entrance Figure 8 Disconnect Switch High Voltage Source High Voltage Entrance Low Voltage Entrance...
Page 15 26" x 20" x 1" and secure it with the four sheet metal screws. 6. a. If you are using an Amana filter kit, affix the FIL- TER ACCESS label to the filter access door. b. If you are NOT using an Amana filter kit, clearly mark the filter access door “FILTER ACCESS”.
Page 16: Flue Vent
VIII. Flue Vent Flue Hood And Air Inlet Hood Installation The flue hood and air inlet hood are packaged in a box which is located inside the return air compartment. They must be installed prior to operation of the unit. See Fig- ure 10.
Page 17 Air Circulation Blower Gas Valve CLOSED Ignitor CLOSED Pressure Switch (N.O. Contacts) Combustion Blower Thermostat Seconds Timing Chart for Normal Robertshaw Operation (PGB & PGC) Indoor Fan Outdoor Fan Compressor Thermostat PGB Timing Chart for Normal Cooling Operation Indoor Fan Outdoor Fan Compressor Thermostat...
Page 18: Heating Sequence Of Operations
X. Heating Sequence of Operations PGB & PGC) Normal Sequence of Operation - Heating See Figure 12 1. Thermostat calls for heat. The combustion blower is immediately energized. 2. The pressure switch contacts transfer. 3. The ignitor is energized and allowed to preheat for 38 seconds.
Page 19 WARNING To avoid the risk of fire or explosion, a qualified servicer must investigate the problem which caused the roll-out pro- tection device to open before manually resetting the device. Flame Roll-Out Protector (Manual Reset) Figure 14 Rollout Protection (Shown Without Heat Shield) Secondary Limit Control On the PGC and PGB series, a second limit control is placed on the blower scroll that will open if the blower...
Page 20 Gas Input And Pressures Gas supply pressure and manifold pressure with the burners operating must be as specified on the rating plate. Checking Gas Pressure Gas inlet pressure should be checked and adjusted in accordance to the type of fuel being consumed. With Power And Gas Off: 1.
Page 21 With a properly designed system, the proper amount of temperature rise will normally be obtained when the unit is operated at rated input with the recommended blower speed. If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. A higher blower speed will lower the temperature rise.
Page 22 Figure 18 Fan and Limit Control CAUTION This unit should not be used as a “con- struction heater” during the finishing phases of construction on a new struc- ture. This type of use may result in pre- mature failure of the unit due to extremely low return air temperatures and exposure to very dirty atmospheres.
Page 23 Figure 20 High Pressure Protection Devices Scroll Compressors PGC 24, 30, 36, 42, 60, and PGB58 units include scroll compressors. The installer and servicer should be aware of the following differences between scroll compressors and reciprocating compressors: • These scroll compressors include a thermostat (ex- ternal compressor protector) mounted to the top of the compressor.
Page 24: Maintenance
If the installation has the return air filter located in the unit filter rack and it must be replaced, use the appropri- ate Amana filter or a permanent filter that is properly sized as follows: Model...
Page 25 Flame Sensor (Qualified Servicer Only) Under some conditions, the fuel or combustion air sup- ply can create a nearly invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sensing signal. If this occurs, a qualified servicer should carefully clean the flame sensor with emery cloth or steel wool.
Page 26: Accessories And Functional Parts
XIV. Accessories and Functional Parts Accessories Additional Amana accessories can be purchased to fit specific application needs. Accessories can be ordered by description in Table 5. Each accessory includes its own separate instructions.
Page 27: Typical Cooling Performance Data
XV. Typical Cooling Performance Data Outdoor Indoor PGC24 Air Temp. Indoor Pressure @ Unit Tem p. Air Temp. Gauge Fittings Condenser at Evap. Difference Inlet Inlet Betw een (Dry Bulb) (Wet Bulb) Coil Inlet Side and Outlet ° F. ° F. °...
Page 28 Outdoor Indoor PGC42 Air Temp. Indoor Pressure @ Unit Temp. Air Temp. Gauge Fittings Condenser at Evap. Difference Inlet Inlet Between (Dry Bulb) (Wet Bulb) Coil Inlet Side and Outlet ° F. ° F. ° F. PSIG PGC48 Indoor Pressure @ Unit Amps Air Temp.
Page 29: Wiring Diagram
XVI. Wiring Diagram PGC24 - 36...
Page 30 PGC 42...
Page 31 PGC 48...
Page 32 PGC 60...
Page 33 PGB 58...

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