Specifications | Amana PGB58B Slow Cooker User Manual

®
Heating ¡ Air Conditioning
A higher standard of comfort
MODELS
PGC(24-60)B and
PGB58B
Gas-Electric Package
Unit
Cooling and Heating
Installation Instructions
Table of Contents
I.
II.
III.
IV.
V.
Vl.
Vll.
VIII.
IX.
X.
XI.
XIl.
XIII.
XIV.
XV.
XVI.
Unit Specifications ........................................ 2
Safety Information ......................................... 6
General Information ...................................... 7
Rigging and Handling ................................... 9
Gas Piping .................................................... 10
Electrical Wiring .......................................... 12
Circulating Air and Filters .......................... 13
Flue Vent ....................................................... 16
Condensate Drain ........................................ 16
Heating Sequence of Operations ............... 18
Cooling Sequence of Operations .............. 18
Startup and Adjustment .............................. 18
Maintenance ................................................. 24
Accessories and Functional Parts ............ 26
Typical Cooling Performance Data ............ 27
Wiring Diagram ............................................ 29
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to
know the product better than the customer. This includes all safety precautions and related items.
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.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention 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.
Safety is a matter of common sense...a matter of thinking 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.
Affix These Installation Instructions Adjacent To The Appliance.
May 1998 (2)
Amana
Fayetteville, TN 37334
11073904
I. Unit Specifications
MODEL
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.)
CFM
Condenser Fan Motor
Horsepower
R.L. Amps
L.R. Amps
Blower Motor
Horsepower
R.L. Amps
L.R. Amps
Blower Wheel Dia. x Width (in.)
Rated CFM, Cooling
Max. External
Combustion Blower
Diameter x Width (in.)
No.
Condenser Blower Motor
H.P.
F.L. Amps.
Press. Switch Setting (" W.C.)
Ignition - Lockout Timing (sec.)
Flame Sense Current (microamps)
Minimum
Maximum
Evaporator Coil
Face Area (Sq. Ft.)
Rows Deep
Fins/Inch
External Filter Size (Sq. Ft.)
Drain Line Size (in.)
Expansion Device (Cooling)
Refrigerant Charge
Power Supply**
Min. Circuit Ampacity
Max. Overcurrent Device
Electrical Entrance Size
Power Supply
Low Voltage
Approx. Shipping Weight (lb.)
PGC24B0452A
24,000
12.50
PGC24B0702A
24,000
12.50
PGC30B0702A
30,000
12.30
PGC36B0702A
36,000
12.00
PGC36B0902A
36,000
12.00
45,000
35,000
80.9
20-50
2
70,000
55,000
80.1
30-60
3
70,000
55,000
80.1
30-60
3
70,000
55,000
80.1
30-60
3
90,000
70,000
80.4
40-70
4
12.9
62.5
12.9
62.5
15
76
20
90.5
20
90.5
12.3
1 1/2
13
12.3
1 1/2
13
12.3
2
13
14
2
13
14
2
13
20
2670
20
2670
20
2700
20
3060
20
3060
1/8
0.8
1.5
1/8
0.8
1.5
1/4
1.2
3
1/4
1.5
3.4
1/4
1.5
3.4
0.5
4.3
10x7
850
0.8" wc
0.5
0.5
0.5
4.3
4.3
4.3
Protected by redundant electronic control circuits
10x7
10x7
10x7
850
1100
1300
0.8" wc
0.8" wc
0.8" wc
10x7
1300
0.8" wc
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
1
6
1
6
1
6
1
6
1
6
4
2
16
3.6
3/4
Capillary
4
4
4
2
2
4
16
16
12
3.6
3.6
3.6
3/4
3/4
3/4
Capillary
Capillary
Capillary
Refer to unit name plate for correct charge
208/230-60-1
208/230-60-1
208/230-60-1
21.3
24.3
30.8
30
35
45
208/230-60-1
21.3
30
1 1/4", 1 1/2", 2"
7/8"
385
1 1/4", 1 1/2", 2"
7/8"
394
1 1/4", 1 1/2", 2"
7/8"
418
1 1/4", 1 1/2", 2"
7/8"
437
0.5
4.3
4
4
12
3.6
3/4
Capillary
208/230-60-1
30.8
45
1 1/4", 1 1/2", 2"
7/8"
443
1) United States Installation
2) Specification subject to change without notice. See sales specification sheets for certain BTUH capacities.
3) This PGC series complies with requirements embodied in the American National Standard ANSI-Z21.47 Central Furnaces.
4) Filters are not supplied with units, but filters must be installed in the unit filter rack or in the return air system.
** While the above data is presented as a guide, it is important to electrically connect the unit and properly size overcurrent protection and wires in accordance with the
National Electrical Code and all existing local codes.
Operating tolerance: Minus 5% on 208 VAC, Plus 10% on 208 VAC and 230 VAC, Minus 10% on 230 VAC
Table 1A
Gas Pack Specifications
2
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
4
Compressor
R.L. Amps
22
L.R. Amps
107
Condenser Coil
Face Area (sq. ft.)
17.2
Row s Deep
2
Fins/Inch
13
Condenser Fan
Diameter (in.)
24
CFM
3500
Condenser Fan Motor
Horsepow er
1/4
R.L. Amps
1.5
L.R. Amps
3.4
Blow er Motor
Horsepow er
3/4
R.L. Amps
5
L.R. Amps
Blow er Wheel Dia. x Width (in.)
10x10
Rated CFM, Cooling
1450
Max. External
0.8" w c
Combustion Blow er
Diameter x Width (in.)
4 x 1.25
No.
1
Condenser Blow er Motor
H.P.
0.03125
F.L. Amps.
0.5
Press. Sw itch Setting (" W.C.)
-0.65
Ignition - Lockout Timing (sec.)
4
Flame Sense Current (microamps)
Minimum
1
Maximum
6
Evaporator Coil
Face Area (Sq. Ft.)
5.7
Row s Deep
2
Fins/Inch
15
External Filter Size (Sq. Ft.)
5.3
Drain Line Size (in.)
3/4
Expansion Device (Cooling)
Capillary
Refrigerant Charge
Pow er Supply**
208/230-60-1
Min. Circuit Ampacity
34
Max. Overcurrent Device
50
Electrical Entrance Size
Pow er Supply
1 1/4", 1 1/2", 2"
Low Voltage
7/8"
Approx. Shipping Weight (lbs)
521
PGC42B1152A
42,000
12.20
PGC48B0902A
48,000
12.00
PGC48B1152A
48,000
12.00
PGC60B0902A
60,000
12.00
PGC60B1352A
60,000
12.00
115,000
89,000
79.9
40-70
5
90,000
72,000
81.4
25-55
4
115,000
89,000
79.9
40-70
5
90,000
72,000
81.4
25-55
5
135,000
108,000
80.5
40-70
6
22
107
21.8
105
21.8
105
28.8
169
28.8
169
17.2
2
13
17.2
2
17
17.2
2
17
17.2
2
17
17.2
2
17
24
3500
24
3700
24
3700
24
4700
24
4700
1/4
1.5
3.4
1/2
1.5
3.6
1/2
1.5
3.6
1/3
2.5
6.4
1/3
2.5
6.4
3/4
5
3/4
3/4
1
5
5
7
Protected by redundant electronic control circuts
10x10
10x10
10x10
11x8
1450
1700
1700
1750
0.8" w c
0.8" w c
0.8" w c
0.8" w c
11x8
1750
0.8" w c
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
4 x 1.25
1
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
0.03125
0.5
-0.65
4
1
6
1
6
1
6
1
6
1
6
5.7
2
15
5.3
3/4
Capillary
5.7
5.7
5.7
3
3
3
15
15
15
5.3
5.3
5.3
3/4
3/4
3/4
TEV
TEV
TEV
Refer to unit name plate for correct charge
208/230-60-1
208/230-60-1
208/230-60-1
208/230-60-1
34
39.5
39.5
49.7
50
50
50
70
1 1/4", 1 1/2", 2"
7/8"
527
1 1/4", 1 1/2", 2"
7/8"
526
1 1/4", 1 1/2", 2"
7/8"
526
1 1/4", 1 1/2", 2"
7/8"
531
1
7
5.7
3
15
5.3
3/4
TEV
208/230-60-1
49.7
70
1 1/4", 1 1/2", 2"
7/8"
531
1) United States Installation
2) Specification subject to change without notice. See sales specification sheets for certain BTUH capacities.
3) This PGC series complies with requirements embodied in the American National Standard ANSI-Z21.47 Central Furnaces.
4) Filters are not supplied with units, but filters must be installed in the unit filter rack or in the return air system.
** While the above data is presented as a guide, it is important to electrically connect the unit and properly size overcurrent protection and wires in accordance with the
National Electrical Code and all existing local codes.
Operating tolerance: Minus 5% on 208 VAC, Plus 10% on 208 VAC and 230 VAC, Minus 10% on 230 VAC
Table 1B
Gas Pack Specifications
3
MODEL
PGB58B0902A
PGB58B1152A
PGB58B1352A
Cooling Capacity Btuh
59,500
59,500
59,500
SEER
11.10
11.10
11.10
Input Btuh
90,000
115,000
135,000
Output Btuh
72,000
92,000
108,000
Heating
AFUE
81.4
79.9
80.5
Temperature Rise °F
25-55
25-55
25-55
Number of Burners
4
4
4
R.L. Amps
28.8
28.8
28.8
L.R. Amps
169
169
169
Face Area (sq. ft.)
17.2
17.2
17.2
Rows Deep
2
2
2
Fins/Inch
17
17
17
Compressor
Condenser Coil
Condenser Fan
Diameter (in.)
CFM
24
24
24
4700
4700
4700
Condenser Fan Motor
Horsepower
1/3
1/3
1/3
R.L. Amps
2.5
2.5
2.5
L.R. Amps
6.4
6.4
6.4
Blower Motor
Horsepower
3/4
3/4
3/4
R.L. Amps
5.6
5.6
5.6
L.R. Amps
12.9
12.9
12.9
Blower Wheel Dia. x Width (in.)
11X8
11X8
11X8
Rated CFM, Cooling
1750
1750
1750
Max. External
0.5" wc
0.5" wc
0.5" wc
Diameter x Width (in.)
4 x 1.25
4 x 1.25
4 x 1.25
No.
1
1
1
1/32
Combustion Blower
Condenser Blower Motor
H.P.
1/32
1/32
F.L. Amps.
0.5
0.5
0.5
Press. Switch Setting (" W.C.)
-0.65
-0.65
-0.65
Ignition - Lockout Timing (sec.)
4
4
4
Flame Sense Current (microamps)
Minimum
1
1
1
Maximum
6
6
6
5.7
5.7
5.7
Evaporator Coil
Face Area (Sq. Ft.)
Rows Deep
4
4
4
Fins/Inch
15
15
15
External Filter Size (Sq. Ft.)
Drain Line Size (in.)
3/4
3/4
3/4
Expansion Device (Cooling)
TEV
TEV
TEV
Refrigerant Charge
Refer to unit name plate for correct charge
Power Supply**
208/230-60-1
208/230-60-1
208/230-60-1
Min. Circuit Ampacity
33.75
33.75
33.75
Max. Overcurrent Device
50
50
50
Power Supply
1 1/4", 1 1/2", 2"
1 1/4", 1 1/2", 2"
1 1/4", 1 1/2", 2"
Low Voltage
7/8"
7/8"
7/8"
531
531
531
Electrical Entrance Size
Approx. Shipping Weight (lbs)
Table 1C
Gas Pack Specifications
4
Nominal
Cooling
Capacity
(MBh)
Model
Nominal
Cooling
CFM
Nominal
Heating
Capacity
(Input)
(Y+G)
Nominal
Heating
CFM
Nominal
Fan Only
Temp.
Rise (°F)
Speed
Taps
(W1)
(G)
PGC24B0452A
24000
850
45000
930
570
35
Cool
A
Heat
A
PGC24B0702A
24000
850
70000
1140
570
45
A
B
PGC30B0702A
30000
1100
70000
1140
570
45
B
B
PGC36BO702A
36000
1300
70000
1140
570
45
C
B
PGC36B0902A
36000
1300
90000
1350
570
55
C
C
PGC42B0902A
42000
1450
90000
1650
815
40
A
A
PGC42B1152A
42000
1450
115000
1530
815
55
A
B
PGC48B0902A
48000
1700
90000
1650
815
40
B
A
PGC48B1152A
48000
1700
115000
1530
815
55
B
B
PGC60B0902A
60000
1750
90000
1650
815
40
A
A
PGC60B1352A
60000
1750
135000
1900
815
55
A
B
1. Installation is to be adjusted to obtain temperature rise within the range specified on the rating plate.
2. The temperature rise is for units installed at 0-2000 feet. At higher altitudes, a properly derated unit will have
approximately the same temperature rise and CFM.
3. The chart is applicable for both vertical and horizontal airflow.
4. All speed tap settings are factory selected according to unit size.
5. Data shown without filters. Consult filter manufacturer for pressure drop to be added.
6. Motor is constant CFM for external static pressures 0.1" to 0.8" W.C.
7. Maximum External Pressure Limits
PGC 24-42 0.8" W.C.
PGC46 & 60 1.0 W.C.
Table 2A
PGC Temperature Rise Table
Model
PGB58B0902C
PGB58B1152C
PGB58B1352C
Motor
Speed
Hi
Med
Lo
Hi
Med
Lo
Hi
Med
Lo
0.1
CFM
2160
1750
1490
2160
1750
1490
2160
1750
1490
0.2
RISE
31
38
45
--49
57
46
57
67
CFM
2120
1750
1480
2120
1750
1480
2120
1750
1480
RISE
31
39
45
--49
58
47
58
68
External Static Pressure, Inches Water Column
0.3
0.4
0.5
0.6
CFM
RISE CFM
RISE CFM
RISE CFM
RISE
2080
32
2030
33
1990
34
1945
34
1700
39
1680
40
1680
40
1615
41
1470
45
1450
46
1440
46
1415
47
2080
41
2030
42
1990
43
1945
44
1700
50
1680
51
1650
52
1615
53
1470
58
1460
58
1440
59
1415
60
2080
48
2030
49
1990
50
1945
51
1700
59
1680
60
1650
61
1615
62
1470
68
1460
68
1440
69
1415
---
0.7
CFM
1900
1575
1360
1900
1575
1360
1900
1575
1360
0.8
RISE
35
42
49
45
54
63
53
63
---
CFM
1835
1490
1280
1835
1470
1280
1835
1490
1280
RISE
36
45
52
46
57
67
54
67
---
NOTE:
1. All airflow is dry coil.
2. Installation is to be adjusted to obtain temperatures rise within the range specified on the rating plate.
3. The above chart is for information only. For satisfactory operation, external static pressure should not exceed value shown on the rating
plate. The shaded area ( ) indicates in excess of maximum external static pressure allowable when heating.
4. This chart is for units installed at 0-2000 feet. At higher altitudes, a properly derated unit will have approximately the same temperature
rise at a particular CFM, while ESP at that CFM will be lower.
5. Cooling operation may require a different fan speed than heating operation. For details, see Wiring Diagrams.
6. Above chart is applicable for both vertical and horizontal airflow.
Table 2B
PGB CFM& Temperature Rise vs. External Static Pressure Table
5
II. Safety Information
WARNING
Do not store gasoline or other flammable
vapors and liquids in the vicinity of this
or any other appliance.
Important
To The Installer
Before installing this unit please read this manual to familiarize yourself with the specific items which must be
adhered to such as maximum external static pressure
to unit, air temperature rise, minimum or maximum CFM
and motor speed connections. Affix these Installation
Instructions adjacent to the appliance.
If you smell gas:
• Extinguish any open flame.
• Do not try to light appliance.
• Do not touch any electrical switch: do not use any
phone in building.
• Immediately call gas supplier from a neighbor’s
phone. Follow gas supplier’s instructions.
To The Owner
It is important that you complete the owner registration
card and mail it today. This will assist Amana in contacting 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.
• If gas supplier cannot be reached, call fire department.
WARNING
Improper installation, adjustment, alterations, service or maintenance can cause
property damage, personal injury, or
death. Follow all procedures in this
manual. For assistance or additional information, contact a qualified installer,
service agency, or gas supplier.
Your warranty certificate is also supplied with the unit.
Read the warranty carefully and note what is covered.
Keep the warranty certificate in a safe place so you can
find it if necessary.
If additional operating Instructions are required, call the
dealer where the purchase was made. Keep this literature in a safe place for future reference.
WARNING
WARNING
This product contains or produces a
chemical(s) which may cause death or
serious illness and which are known by
the State of California to cause cancer,
birth defects or other reproductive harm.
Should overheating occur or the gas supply fail to shut off, turn off the manual
gas control valve to the furnace before
shutting off the electrical supply.
CAUTION
CAUTION
On PGC48 - 60 and PGB58 Only: To avoid
damage to the compressor, engage the
electrical disconnect switch to the compressor unit four hours prior to operating air conditioner after the electrical disconnect is off for a prolonged period of
time (during vacation, etc.). This time
lapse allows the compressor crankcase
to attain a proper operating temperature.
This unit should not be used as a “construction heater” during the finishing
phases of construction on a new structure. This type of use may result in premature failure of the unit due to extremely
low return air temperatures and exposure
to very dirty atmospheres.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal injury, or death.
6
Locating The Unit
Ground Level Installations Only:
• When the unit is installed on the ground adjacent to
the building, a level concrete (or equal) base is recommended. Prepare a base the same physical size
as the unit or slightly larger and 3 inches thick.
WARNING
To avoid possible equipment damage,
fire, personal injury, or death, the following points must be observed when installing the unit.
• The base should also be located where no run-off
of water from higher ground can collect in the unit.
• The feet on the unit may not be removed.
All Installations:
• For proper flame pattern within the heat exchanger
and proper condensate drainage, the unit must be
mounted level.
Rooftop Installations Only:
• To avoid possible property damage or personal injury, the roof must have sufficient structural strength
to carry the weight of the unit(s) and snow or water
loads as required by local codes.
• The unit should be as centralized as is practical with
respect to the air distribution system. This unit is for
outdoor installation ONLY!
• If horizontal air delivery is used, the unit may be installed directly on wood floors or on Class A, Class
B, or Class C roof covering material, provided that
the feet on the unit are not removed.
• The flue outlet hood must be at least 12 inches from
any opening through which flue gases could enter a
building, and at least three feet above any forced air
inlet located within ten feet. The economizer/manual
outdoor air intake/motorized outdoor air intake and
combustion air inlet mounted on the unit are not affected by this restriction.
• To avoid possible personal injury, a safe, flat surface for service personnel should be provided.
• If vertical air discharge is used and the unit is installed 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.
• To avoid possible corrosion of the heat exchanger,
do not locate the unit in an area where the outdoor
air (i.e., combustion air for the unit) will be frequently
contaminated by compounds containing chlorine or
fluorine. Common sources of such compounds include swimming pools and chlorine bleaches, paint
stripper, adhesives, paints, varnishes, sealers,
waxes (which are not yet dried) and solvents used
during construction and remodeling. Various commercial and industrial processes may also be
sources of chlorine/fluorine compounds.
III. General Information
WARNING
Improper installation, repair, operation or
maintenance of this product may result
in property damage, personal injury, or
death from hazards such as fire, explosions, smoke, soot, condensation, electric shock or carbon monoxide.
• To avoid possible illness or death of the building occupants, do NOT locate outside air intake device
(economizer, manual outdoor air intake, motorized
outdoor air intake) too close to an exhaust outlet,
gas vent termination, or plumbing vent outlet. For
specific distances required, consult local codes.
This unit is approved only for an outdoor installation. To
• Allow clearances from the enclosure as shown in assure that your unit operates safely and efficiently, it
must be installed, operated, and maintained in accordance with these installation and operating instructions,
all local building codes and ordinances, or in their absence, with the latest edition of the National Fuel Gas
Code. (ANSI Z223.1).
Figure 1 for fire protection, proper operation, and
service access. These clearances must be permanently maintained.
• The combustion air inlet and flue outlet hoods on
the front of the unit must never be obstructed. If used,
do not allow the economizer/manual outdoor air
damper/ motorized outdoor air damper to become
blocked by snow or debris. In some climates or locations, it may be necessary to elevate the unit to
avoid these problems.
The heating and cooling capacities of the unit should be
greater than or equal to the design heating and cooling
loads of the area to be conditioned. The loads should
be calculated by an approved method or in accordance
with ASHRAE Guide or Manual J - Load Calculations
published by the Air Conditioning Contractors of America.
• When the unit is heating, the temperature of the re-
Obtain from:
turn air entering the unit must be between 50° F and
100° F.
American National Standards Institute
1430 Broadway
New York, NY 10018
7
Figure 1
Required Clearances For All Installations
8
IV. Rigging and Handling
Transportation Damage
All units are securely packed in shipping cartons approved by the International Safe Transit Association. The
carton should be checked upon arrival for external damage. If damage is found, a request for inspection by carrier agent should be made in writing immediately.
CAUTION
To prevent possible property damage, the
unit should remain in an upright position
during all rigging and moving operations.
To facilitate lifting and moving when a
crane is used, place the unit in an adequate cable slide.
The unit should be carefully inspected upon arrival for
damage and bolts or screws which may have loosened
in transit. In the event of damage, the consignee should:
1. Make notation on delivery receipt of any visible damage to shipment or container.
2. Notify carrier promptly and request an inspection.
Important: If using bottom discharge with roof curb,
ductwork should be attached to the curb prior to installing the unit. Ductwork dimensions are shown in Amana
Roof Curb Installation Instructions.
3. In case of concealed damage, carrier should be notified as soon as possible-preferably within 5 days.
4. File the claim with the following supporting documents within the 9-month statute of limitations.
Refer to the Amana Roof Curb Installation Instructions
for proper curb installation. Curbing must be installed in
compliance with the National Roofing Contractors Association Manual.
a. Original Bill of Lading, certified copy, or indemnity
bond.
b. Original paid freight bill or indemnity in lieu thereof.
Lower unit carefully onto roof mounting curb. While rigging unit, center of gravity will cause condenser end to
be lower than supply air end.
c. Original invoice or certified copy thereof, showing
trade and other discounts or reductions.
d. Copy of the inspection report issued by carrier
representative at the time damage is reported to
the carrier. The carrier is responsible for making
prompt inspection of damage and for a thorough
investigation of each claim. The distributor or
manufacturer will not accept claims from dealers
for transportation damage.
If using a fork lift, see Figure 2 for location of fork prongs.
Make certain prongs support unit weight.
NOTE: When inspecting the unit for transportation damage, remove all packaging materials. Follow local codes
when disposing or recycling the packaging material.
Locating The Thermostat
The thermostat should be mounted 5 feet above the floor,
on a vibration free inside wall in a room or a hallway that
has good air circulation.
Movement of air should not be obstructed by furniture,
door, draperies, etc. The thermostat should not be
mounted where it will be affected by drafts, hot or cold
water pipes or air ducts in walls, radiant heat from fireplace, lamps, the sun, television, etc. Consult the Instruction Sheet packaged with the thermostat for mounting instructions.
All units have one stage of heating and one stage of
mechanical cooling. Units which will have economizers
may use thermostats with one or two stages of cooling.
Figure 2
Rigging
9
V. Gas Piping
IMPORTANT NOTE: This furnace is factory set to operate 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 conversion kit(s) before operating this furnace. Failure to
do so may result in unsatisfactory operation and/or equipment damage. (High altitude kits are for U.S. installations only.)
The rating plate is stamped with the model number, type
of gas and gas input rating. Make sure the furnace is
equipped to operate on the type of gas available.
Gas Piping
IMPORTANT NOTE: To avoid possible unsatisfactory
operation or equipment damage due to under firing of
equipment, do not undersize the natural gas/propane
piping from the meter/tank to the furnace. When sizing
a trunk line as shown in Table 4, include all appliances
on that line that could be operated simultaneously.
The rating plate is stamped with the model number, type
of gas and gas input rating. Make sure the furnace is
equipped to operate on the type of gas available.
The gas line installation must comply with local codes,
or in the absence of local codes, with the latest edition
of the National Fuel Gas Code (ANSI Z223.1).
INLET GAS PRESSURE
Natural
Propane
Min. 5.0" W.C., Max. 10.0" W.C.
Min. 11.0" W.C., Max. 14.0" W.C.
Connecting The Gas Piping - Natural Gas
Inlet Gas Pressure Must Not Exceed the Maximum Value Shown
in Table 3.
Table 3
The minimum supply pressure should not vary from that
shown in the table above because this could prevent
the furnace from having dependable ignition. In addition, gas input to the burners must not exceed the rated
input shown on the rating plate. Overfiring of the furnace could result in premature heat exchanger failure.
High Altitude Derate (US. Installations Only Canadian Installations to 4500 Feet Only)
When this furnace is installed at altitudes above 2000
feet, the furnace input must be derated 4% for each 1000
feet above sea level because the density of the air is
reduced.
In some areas the gas supplier will derate the heating
value of the gas at a rate of 4% for each 1000 feet above
sea level. If this is not done, smaller orifices will be required at altitudes above 3500 feet (non-derated natural gas) or 4500 feet (non-derated propane gas).
A different pressure switch will be required at altitudes
more than 4000 feet above sea level. This is required
regardless of the heat content of the fuel used.
High altitude kits can be purchased depending on the
altitude and usage of propane or natural gas. Refer to
the high altitude instruction manual included with this
furnace to determine which high altitude components to
use.
Adjustment of the manifold pressure to a lower pressure reading than what is specified on the furnace nameplate is not a proper derate procedure. With a lower density of air and a lower manifold pressure at the burner
orifice, the orifice will not aspirate the proper amount of
air into the burner. This can cause incomplete combustion of the gas, flashback, and possible yellow tipping.
10
Natural Gas Capacity of Pipe
in Cubic Feet of Gas Per Hour (CFH)
Nominal Black Pipe Size (inches)
Length of
Pipe in Feet
1/2
3/4
1
1 1/4
1 1/2
10
132
278
520
1050
1600
20
92
190
350
730
1100
30
73
152
285
590
980
40
63
130
245
500
760
50
56
115
215
440
670
60
50
105
195
400
610
70
46
96
180
370
560
80
43
90
170
350
530
90
40
84
160
320
490
100
38
79
150
305
460
Pressure = .50 PSIG or less and Pressure Drop of 0.3" W.C. (Based
on 0.60 Specific Gravity Gas)
Btuh Furnace Input
CFH=
Calorific Value of Gas
Table 4
Refer to Figure 3 for the general layout at the furnace.
The following rules apply:
1. Use black iron or steel pipe and fittings for the building piping.
2. Use pipe joint compound on male threads only. Pipe
joint compound must be resistant to the action of
the fuel used.
3. Use ground joint unions.
4. Install a drip leg to trap dirt and moisture before it
can enter the gas valve. The drip leg must be a minimum of three inches long.
5. Use two pipe wrenches when making connection to
the gas valve to keep it from turning.
6. Install a manual shut-off valve in a convenient location (within six feet of unit) between the meter and
the unit.
7. Tighten all joints securely.
WARNING
To avoid personal injury or property damage, be sure there is no open flame in the
vicinity during air bleeding procedure.
There will be air in the gas supply line after testing for
leaks on a new installation. Therefore, the air must be
bled from the line by cracking open the ground joint union
until pure gas is expelled. Tighten union and wait for
five minutes until all gas has been dissipated in the air.
Be certain there is no open flame in the vicinity during
air bleeding procedure. The unit is placed in operation
by closing the main electrical disconnect switch for the
furnace.
Figure 3
Proper Piping Practice
Tanks And Piping for Propane Gas Units
Checking The Gas Piping
WARNING
Personal Injury Hazard
CAUTION
Failure to detect a propane gas leak could
result in an explosion or fire which could
cause death, serious personal injury, or
property damage.
To avoid the possibility of personal injury, property damage or fire, the following instructions must be performed regarding gas connections and pressure
testing:
Iron oxide (rust) can reduce the level of
odorant in propane gas. A gas detecting
device is the only reliable method to detect a propane gas leak. Contact the local propane supplier about installing a
warning device to sound an alert if a gas
leak should develop.
• This unit and its gas connections must
be leak tested before placing in operation. Because of the danger of explosion
or fire, never use a match or open flame
to test for leaks. Never exceed specified pressures for testing. Higher pressure may damage gas valve and cause
overfiring which may result in heat failure.
All propane gas equipment must conform to the safety
standards of the National Board of Fire Underwriters (See
NBFU Manual 58).
• This unit and shut-off valve must be disconnected from the gas supply during
any pressure testing of that system at
test pressures in excess of 1/2 PSIG
(3.48 kPa).
For satisfactory operation, propane gas pressure must
be 10 inch W.C. at the furnace manifold with all gas appliances in operation. Maintaining proper gas pressure
depends on three main factors:
1. Vaporization rate, which depends on (a) temperature of the liquid, and (b) wetted surface area of the
container or containers.
• This unit must be isolated from the gas
supply system by closing the manual
shut-off valve during any pressure testing of the gas supply piping system at
test pressures equal to or less than 1/2
PSIG (3.48 kPa).
2. Proper pressure regulation. (Two-stage regulation
is recommended from the standpoint of both cost
and efficiency.)
3. Pressure drop in lines between regulators, and between second stage regulator and the appliance.
Pipe size required will depend on length of pipe run
and total load of all appliances.
Complete information regarding tank sizing for vaporization, recommended regulator settings and pipe sizing is available from most regulator manufacturers and
propane gas suppliers.
11
Special pipe dope must be used when assembling piping for this gas as it will quickly dissolve white lead or
most standard commercial compounds. Shellac base
compounds resistant to the actions of liquefied petroleum gases such as Gasolac, Static, Clyde or John
Crane are satisfactory.
Please refer to Figure 4 for typical propane gas installations.
WARNING
Failure to follow the instructions on Page
6 of this manual when the presence of
gas is suspected could result in death or
serious personal injury. An undetected
gas leak would create a danger of explosion or fire.
If the propane gas furnace is installed in
an excavated area or a confined space, it
is strongly recommended contacting a
propane gas supplier about installing a
warning device to warn of a gas leak.
Propane gas is heavier than air and any
leaking gas can settle in low areas or
confined areas.
Figure 4
Typical Propane Gas Piping
Propane gas odorant may fade, making
the gas undetectable except with a
warning device.
Vl. Electrical Wiring
WARNING
To avoid personal injury or death due to
electrical shock, disconnect the electrical power before electrically connecting
the unit.
The units are designed for operation on 60 hertz current
and at voltages as shown on the rating plate. All internal
wiring in the unit is complete. It is necessary to bring in
the power supply to the contactor as shown on the unit
wiring diagram which is supplied with each unit. The 24V
wiring must be connected between the unit control panel
and the room thermostat. Refer to Figure 5 for location
of low voltage terminal board and Figure 6 for proper
thermostat wiring.
Low Voltage
Board
Table 5
Propane Pipe Sizing
Figure 5
Low Voltage Control Box
12
Please refer to the unit wiring diagram for electrical connections. When installed, the unit must be electrically
grounded in accordance with local codes or in the absence of local codes with the latest edition of National
Electrical Code, ANSI/NFPA No. 70.
CAUTION
To prevent improper and dangerous operation due to wiring errors, label all wires
prior to disconnection when servicing
controls. Verify proper operation after
servicing.
WARNING
To avoid death or personal injury due to
electrical shock, wiring to the unit must
be properly grounded.
Vll. Circulating Air and Filters
Airflow Conversion
Units can easily be converted from horizontal to vertical
airflow delivery.
CAUTION
Units will ship from the factory ready for horizontal airflow. If conversion to vertical airflow is necessary, proceed as follows:
To avoid personal injury or property damage due to fire, use only copper conductors.
IMPORTANT: Be sure to save the flue hood assembly
(cardboard box) which is shipped in the return air compartment of the unit.
The best protection for the wiring is the smallest fuse or
breaker which will hold the equipment on the line during
normal operation without nuisance trips. Such a device
will provide maximum circuit protection. DO NOT EXCEED THE MAXIMUM OVERCURRENT DEVICE SIZE
SHOWN ON UNIT DATA PLATE.
• Remove panels from the bottom of the unit, saving
the mounting screws.
• Remove insulation from outside of supply duct cover.
No insulation should face outside.
Be sure line voltage connections are made through
weatherproof fittings. All exterior power supply and
ground wiring must be in approved weatherproof conduit. Low voltage wiring from the unit control panel to
the thermostat requires coded cable. For ground level
and rooftop wiring refer to Figure 8.
• Relocate the panels on to the side of the unit, securing with the screws removed earlier.
• The unit will deliver the same amount of air whether
the airflow is vertical or horizontal. For details, see
the fan tables on Pages 2 - 5.
Unit Voltage
The unit transformer is factory connected for 230V operation. If the unit is to operate on 208V, reconnect the
transformer primary lead and induced draft blower motor leads as shown on the unit wiring diagram.
Heat Anticipator Setting
The heat anticipator in the room thermostat must be
correctly adjusted to obtain the proper number of heating cycles per hour and to prevent the room temperature from overshooting the room thermostat setting. Heat
anticipator must be set at 0.8 amps.
Figure 7
Airflow Conversion
Ductwork
CAUTION
To avoid possible fire, the cardboard
shipping support (located behind the
supply panel) must be removed before
operation.
Figure 6
Typical Thermostat and Unit 24 V Wiring
Hookup
IMPORTANT: Be sure to save the flue hood assembly
which is shipped in a cardboard box in the return air
compartment of the unit.
13
Typical Wiring
(Ground Level)
Disconnect Switch
High Voltage Source
High Voltage
Entrance
Low Voltage
Entrance
Typical Wiring
(Rooftop)
Rooftop
Curb
Junction
Box
Disconnect Switch
High Voltage Source
High Voltage
Entrance
Low Voltage
Entrance
Figure 8
Typical Electrical Wiring
14
Duct systems and register sizes must be properly designed for the C.F.M. and external static pressure rating
of the unit. Ductwork should be designed in accordance
with the recommended methods of Air Conditioning Contractors of America Manual D (Residential) or Manual Q
(Commercial). All ductwork exposed to the outdoors must
include a weatherproof barrier and adequate insulation.
Important: If you will be using the Over/Under Transition
Kit, (PDTROU3A or PDTROU5A) you cannot use the
unit filter rack.
If you are using the Over/Under transition kit or are simply choosing not to use this filter rack, the filter(s) may
be located in the return air duct(s) or return air filter
grille(s). Filters installed external to the unit should be
sized in accordance with their manufacturer recommendations. If you choose to use a throwaway filter it should
be sized for a maximum face velocity of 300 feet per
minute.
A duct system should be installed in accordance with
Standards of the National Board of Fire Underwriters for
the Installation of Air Conditioning, Warm Air Heating
and Ventilating Systems, pamphlets No. 90A and 90B.
The warm air supply duct from the unit through a wall
fabricated of combustible material may be installed without clearance. However, minimum clearances for the unit
must be observed as shown in Section III.
Important: The PGC 42 and 48 package units contain
an evaporator drip pan installed on the return air side of
the indoor coil.
If an economizer is to be installed on these units, the
drip pan must be removed. The pan can be removed by
cutting it away. It will not be needed when an economizer is installed.
It is recommended that the outlet duct be provided with
an access panel. This access should be large enough
to inspect the air chamber downstream from the heat
exchanger for any smoke or combustion gas leaks. A
cover should be tightly attached to prevent air leaks.
If filters are to be installed on these units, they must be
from filter kit PFK5B1 or PFK5B6. The filters in these
kits are sized to fit with the drip pan in place.
For horizontal airflow, duct flange dimensions on the unit
are shown in Section III.
For vertical airflow, the ductwork should be attached to
the roof curb prior to installing the unit. Ductwork dimensions are shown in the Amana PRC roof curb installation manual.
Filter Installation
Important: When installing a filter, always make certain
the air flow arrows on the filter point toward the indoor
blower.
If desired, supply and return duct connections to the unit
may be made with flexible connections to reduce possible noise transmission.
To install a filter in the filter rack, proceed as follows:
1. Disconnect power to the unit.
2. Locate the filter access door above the return air
opening. See Figure 9.
Filters
Filter Access Door
WARNING
Never operate furnace without a filter installed as dust and lint will build up on
internal parts resulting in loss of efficiency, equipment damage, and possible
fire.
A return air filter is not supplied with this unit; however,
there must be a means of filtering all of the return air.
For your convenience, this unit contains a factory installed filter rack. If you choose to install the return air
filter in the unit filter rack, use the appropriate Amana
filter kit or a permanent filter that is properly sized as
follows:
Model
PGC24, 30, or 36
PGC42, 48, 60
or PGB58
Amana Kit #
PFK3A1 or
PFK3A6
PFK5B1 or
PFK5B6
Figure 9
Filter Access Door
3. Remove the four 5/16" sheet metal screws and set
the filter access door aside.
4. Insert the filter into the filter rack channels and lower
into place. Make sure the filter slides completely to
the bottom so no part of the filter remains outside
the back panel.
Required Permanent
Filter Size
26" x 20" x 1"
5. Return the filter access door to its original position
and secure it with the four sheet metal screws.
32-5/8" x 22-3/8" x 1"
6. a. If you are using an Amana filter kit, affix the FILTER ACCESS label to the filter access door.
The Amana filter kit includes a permanent filter, door
label, and installation instructions. PFK3A1 and PFK5B1
contain filter, label, and instructions for one unit. PFK3A6
and PFK5B6 contain filters, labels, and instructions for
six units.
b. If you are NOT using an Amana filter kit, clearly
mark the filter access door “FILTER ACCESS”.
7. Reconnect the power.
NOTE: A clean permanent filter installed as described
above will have a negligible effect on air flow.
15
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 Figure 10.
To install the flue hood cover:
1. Remove the flue hood from inside the box.
2. Slide the upper lip of the hood cover under the top
edge of the unit.
3. Attach the flue hood with two sheet metal screws.
3. Insofar as is practical, close all building doors and
windows and all doors between the space in which
the appliances remaining connected to the common
venting system are located and other spaces of the
building. Turn on clothes dryers and any appliance
not connected to the common venting system. Turn
on any exhaust fans, such as the range hoods and
bathroom exhausts, so they will operate at maximum
speed. Do not operate a summer exhaust fan. Close
fireplace dampers.
4. Follow the lighting instructions. Place the appliance
being inspected in operation. Adjust the thermostat
so appliance will operate continuously.
5. Test for spillage at the draft hood relief opening after five minutes of main burner operation. Use the
flame of a match or candle.
To install the air inlet hood:
1. Remove hood from inside box.
2. Attach hood by using three sheet metal screws.
6. After it has been determined that each appliance
remaining connected to the common venting system properly vents when tested as outlined above,
return doors, windows, exhaust fans, fireplace dampers, and any other gas-burning appliance to their
previous conditions of use.
7. If improper venting is observed during any of the
above tests, the common venting system must be
corrected in accordance with the latest edition of the
National Fuel Gas Code, (ANSI Z223.1).
If resizing any portion of the common venting system,
use the appropriate table in Appendix G, in the latest
edition of the National Fuel Gas Code, (ANSI Z223.1).
IX. Condensate Drain
Figure 10
Air Inlet Hood and Flue Hood
Condensate Drain Connection
The evaporator condensate drain connection is 3/4" FPT.
Clean out the inside of the drain connection to assure
good condensate water runoff before connecting drain
line. The drain line should have a trap on it to prevent
debris, insects and dirt from being drawn into the return
air system. Refer to Figure 11 for location. A 1" minimum head is recommended to allow draining against
the negative pressure inside the unit.
Replacing a Indoor Furnace
WARNING
To prevent property damage, personal
injury or death, do not vent this unit with
any other appliance.
When an existing indoor furnace is removed from a
venting system servicing other appliances, the venting
system may be too large to properly vent the remaining
attached appliances (water heater, etc.).
The following steps must be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances
remaining connected to the common venting system are
not in operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper size
and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
16
1" Minimum
Pitch T
Drain
oward
Trap
Condensate
Drain Connection
The Drain Connection Must
Be The Same Size as On
Unit or Larger
Figure 11
Typical Condensate Drain
NOTE: To avoid double trapping and an overflowing
drain pan, soft plastic drain lines are not recommended.
ON
OFF
Air Circulation Blower
OPEN
CLOSED
Gas Valve
ON
OFF
Ignitor
CLOSED
OPEN
Thermostat
ON
OFF
0 34 38
110
Air Blower ON
Thermostat ON
Seconds
0
Figure 12
Timing Chart for Normal Robertshaw Operation (PGB & PGC)
Indoor Fan
On
Off
Outdoor Fan
and
Compressor
On
Off
Thermostat
On
Off
Seconds
0
15
(approx.)
0
45
(approx.)
Figure 13A
PGB Timing Chart for Normal Cooling Operation
Indoor Fan
On
Off
Outdoor Fan
and
Compressor
On
Off
Thermostat
On
Off
Seconds 0
30
(approx.)
0
30
(approx.)
Figure 13B
PGC Timing Chart for Normal Cooling Operation
17
90
Air Blower OFF
Combustion
Blower OFF
ON
OFF
Thermostat OFF
Combustion Product
Purge Ends.
Combustion Blower
Gas Valve Opens
Ignitor OFF
Pressure Switch
(N.O. Contacts)
X. Heating Sequence of Operations
PGB & PGC)
PGC Normal Sequence of Operations - Cooling
See Figure 13B
1. Thermostat calls for cooling. The compressor, indoor fan, and outdoor fan are energized.
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.
4. The gas valve is energized delivering gas to the
burners and starting combustion.
5. The control checks the signal from the flame sensor. Gas flow will continue only if a proper signal is
present within seven seconds after the gas valve
opens. As soon as flame is proven, the ignitor is deenergized.
6. The unit will continue to fire while the helical fan
control heats up. The fan control will start the main
circulating air blower approximately 75 seconds after the gas valve opens (this time may vary depending on the control setting).
7. The furnace will deliver heat to the conditioned space
until the thermostat is satisfied.
8. The gas valve and combustion blower will be deenergized when the thermostat opens.
9. There is a 90 second delay (approximate) before
the main air blower stops. This allows any additional
heat in the heat exchanger to be transferred to the
conditioned space.
2. Approximately 30 seconds later, the indoor fan
ramps up to full speed.
3. The unit will deliver cooling to the conditioned space
until the thermostat is satisfied.
4. The compressor and outdoor fan will be de-energized when the thermostat opens. It is normal for
the scroll compressor to produce a short burping
sound at this time as its internal pressures are equalized. (The PGC48 has a piston compressor. All other
PGC and PGB have scroll compressors.)
5. Refrigerant will continue to flow through the capillary tube (sizes 24 to 42) until the high and low side
pressures are approximately equal. For the PGC48,
60 and PGB58 refrigerant will continue to flow
through the thermal expansion valve until the high
and low side pressures are approximately 50 PSI
apart.
6. The indoor fan continues to run for approximately
30 seconds after the thermostat is satisfied. This
allows additional cooling from the indoor coil to be
transferred to the conditioned space. Then, the indoor fan ramps down in 30 seconds to the OFF condition.
XIl. Startup and Adjustment
Heating Startup
General Information
This furnace is equipped with an electronic ignition device which lights the burners. It also has a power vent
blower to exhaust combustion products.
XI. Cooling Sequence of Operations
PGB Normal Sequence of Operations - Cooling
See Figure 13A
1. Thermostat calls for cooling. The compressor and
outdoor fan are energized.
2. Approximately 15 seconds later, the fan time delay
relay closes. The indoor fan now begins operation.
3. The unit will deliver cooling to the conditioned space
until the thermostat is satisfied.
4. The compressor and outdoor fan will be de-energized when the thermostat opens. It is normal for
the scroll compressor to produce a short burping
sound at this time as its internal pressures are equalized.
5. Refrigerant will continue to flow through the capillary tube (sizes 24 to 42) until the high and low side
pressures are approximately equal. Refrigerant will
continue to flow through the thermal expansion valve
until the high and low side pressures are approximately 50 PSI apart.
6. The indoor fan continues to run for approximately
45 seconds after the thermostat is satisfied. This
allows additional cooling from the indoor coil to be
transferred to the conditioned space.
18
On new installations, or if a major part such as the gas
valve, pressure switch or fan/limit control has been replaced, the operation of the furnace must be checked.
Check furnace operation as outlined in the following instructions. If any sparking, odors, or unusual noises are
encountered, shut off electrical power and recheck for
wiring errors, or obstructions in or near the blower motors. Various shipping materials must be removed before the indoor and outdoor fans can be operated.
Heat Anticipator Setting
The heat anticipator in the room thermostat must be
correctly adjusted to obtain the proper number of heating cycles per hour and to prevent the room temperature from over-shooting the room thermostat setting.
Heat anticipator must be set at 0.8 amps.
Roll-out Protection Control
If the flames from the burners are not properly drawn
into the heat exchanger, a protection device will open,
causing the gas valve to close. The protection device is
located on the manifold assembly (Figure 14).
WARNING
Reset After Lock-out
Should ignition not be achieved after three tries for any
reason, it will be necessary to reset the electronic ignition module. To reset, it is only necessary to turn the
thermostat below room temperature for thirty seconds,
and then reset it to the desired temperature. The furnace may also be reset after lockout by disengaging the
electric disconnect switch to the furnace for thirty seconds.
To avoid the risk of fire or explosion, a
qualified servicer must investigate the
problem which caused the roll-out protection device to open before manually
resetting the device.
Operating Instructions (Heating)
NOTE: Figure 16 illustrates the proper gas valve mounting location.
Flame Roll-Out
Protector
(Manual Reset)
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
should fail, causing elevated temperatures at the control. The reason for elevated temperatures at the control
should be ascertained and repaired prior to resetting this
manual reset control. The secondary limit control is located behind the front center panel on the blower scroll.
(Figure 15).
Figure 16
Gas Valve
1. Close the manual gas valve external to the furnace.
2. Turn off the electrical power supply to the furnace.
3. Set the room thermostat to its lowest possible setting.
4. Remove the right hand door on the front of the furnace by removing screws.
Secondary Limit
Control
NOTE: Position of Limit Control
Differs From Model to Model.
5. This furnace is equipped with an ignition device
which automatically lights the burner. Do NOT try to
light burner by any other method.
6. Turn the gas control valve knob to the OFF position.
Do not force. (Figure 16).
7. Wait five minutes to clear out any gas.
8. Smell for gas, including near the ground. This is important because some types of gas are heavier than
air. If you have waited five minutes and you do smell
gas, immediately follow the instructions on Page 6
of this manual. If you have waited five minutes and
you do NOT smell gas, turn the gas control valve
knob to the ON position. (Figure 16).
9. Replace the door on the front of the furnace.
Figure 15
Position of Limit Control
10. Open the manual gas valve external to the furnace.
11. Turn on the electrical power supply to the furnace.
12. Set the thermostat to desired setting.
NOTE: There is a one minute delay between thermostat energizing and burner firing.
19
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. Connect a water manometer or adequate gauge to
the manifold gas pressure tap of the gas valve.
As an alternative method, inlet gas pressure can also
be measured by removing the cap from the dripleg and
installing a predrilled cap with a hose fitting. (See Figure
17).
With Power And Gas On:
2. Put furnace into heating cycle and turn on all other
gas consuming appliances.
INLET GAS PRESSURE
Natural
Propane
Min. 5.0" W.C., Max. 10.0" W.C.
Min. 11.0" W.C., Max. 14.0" W.C.
Inlet Gas Pressure Must Not Exceed the Maximum Values shown in Table Above.
If operating pressures differ from above, make necessary pressure regulator adjustments, check piping size,
etc., and/or consult with local utility.
To adjust the pressure regulator, remove the adjustment
screw or cover on the gas valve. Turn out (counterclockwise) to decrease pressure, turn in (clockwise) to increase pressure. Only small variations in gas flow should
be made by means of the pressure regulator adjustment.
In no case should the final manifold pressure vary more
than plus or minus 0.3 inches water column from the
specified pressure. Any major changes in flow should
be made by changing the size of the burner orifices.
Check The Gas Input (Natural Gas Only)
NOTE: On outdoor equipment, the gas input will vary
with the temperature of the gas. Rated input will be obtained at approximately 10° F. With warmer ambient and
gas temperatures, the input will decrease. Example: At
70° F the input will decrease 12%.
To measure the gas input using the gas meter proceed
as follows:
1. Turn off gas supply to all other appliances except
the furnace.
2. With the furnace operating, time the smallest dial on
the meter for one complete revolution. If this is a 2
cubic foot dial, divide the seconds by 2; if it is a 1
cubic foot dial, use the seconds as is. This gives the
seconds per cubic foot of gas being delivered to the
furnace.
3. INPUT=GAS HTG VALUE x 3600 / SEC. PER CUBIC FOOT
Example: Natural gas with a heating value of 1000 BTU
per cubic foot and 34 seconds per cubic foot as determined by Step 2, then:
Input = 1000 x 3600 / 0.34 = 106,000 BTU per Hour.
NOTE: BTU content of the gas should be obtained
from the gas supplier. This measured input must not
be greater than shown on the unit rating plate.
4. Relight all other appliances turned off in Step 1
above. Be sure all pilot burners are operating.
Check Main Burner Flame
Flames should be stable, soft and blue, (dust may cause
orange tips but they must not be yellow). They should
extend directly outward from the burner without curling,
floating or lifting off.
Figure 17
Measuring Inlet Gas Pressure
Alternate Method
Check The Manifold Pressure
A tapped opening is provided in the gas valve to facilitate measurement of the manifold pressure. A U Tube
manometer having a scale range from 0 to 12 inches of
water should be used for this measurement. The manifold pressure must be measured with the burners operating.
Check Temperature Rise
Check the temperature rise through the unit by placing
thermometers in supply and return air registers as close
to the furnace as possible. Thermometers must not be
able to see the furnace heat exchangers, or false readings could be obtained.
1. All registers must be open; all duct dampers must
be in their final (fully or partially open) position and
the unit operated for 15 minutes before taking readings.
2. The temperature rise must be within the range specified on the rating plate.
NOTE: Air temperature rise is the temperature difference between supply and return air.
20
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.
Changing Blower Speeds (PGB Units)
WARNING
To avoid personal injury or death due to
electric shock, remove electrical power
from the unit before changing speed taps
on the blower motor.
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. A
slower blower speed will increase the temperature rise.
NOTE: Blower speed MUST be set to give the correct
air temperature rise through the furnace as marked on
the rating plate.
A multi-speed motor is used in the furnace blower. It
provides easy speed selection for both heating and cooling air flow. Section II shows the CFM and E.S.P. relationship for proper selection of heating and cooling
speeds. Cooling speed should be set for about 400 CFM
per ton cooling capacity.
Important Note: If an installation uses a different blower
speed for cooling than is used for heating, do not set the
thermostat fan switch to ON (constant fan operation)
during the heating season without first confirming the
cooling fan speed will give a temperature rise within the
limits listed on the unit nameplate. Temperature rises
outside the limits listed could result in premature heat
exchanger failure.
Refer to the Wiring Diagram on the furnace to connect
the proper wires to the correct motor leads. All unused
motor leads must be taped or securely covered with wire
nuts.
Check Limit And Fan Control
1. Check limit control (Figure 18) operation after 15
minutes of operation by blocking the return air
grille(s).
Checking External Static Pressure
The total external static pressure must be checked on
this unit to determine if the airflow is correct.
a. After several minutes the main burners must go
OFF. Blower will continue to run.
Changing Blower Speeds (PGC Units)
b. Remove air restrictions and main burners will relight after a cool down period of a few minutes.
WARNING
To avoid personal injury or death due to
electric shock, remove electrical power
from the unit before changing speed taps
on the blower motor.
2. Adjust the thermostat setting below room temperature.
a. Main burners must go off.
b. Circulating Air Blower should continue to run briefly
until supply air temperature drops to approximately
90-100° F.
PGC-B models include a BPM (brushless permanent
magnet) motor. Under identical conditions, it operates
at a lower power consumption than most PSC motors.
Within the allowable range of external static pressures,
the BPM motor will automatically adjust its RPM to deliver the CFM listed in the blower performance table. As
static pressure increases, the RPM, current draw, and
operating sound level of the motor will also increase.
External static pressures in excess of those listed on
the nameplate may result in unsatisfactory operation,
equipment damage, and/or loss of warranty coverage.
Fan and limit controls are preset at the factory. The control is set for the fan to go off at 90-100° F:
NOTE: If necessary, adjust fan ON/OFF settings to obtain satisfactory comfort level. The fan comes on at approximately 125° F.
WARNING
To avoid personal injury, property damage, fire, or premature failure of the heat
exchanger, do not adjust the limit control, which is set at the factory.
The PGC-B models also include a speed tap board located on the blower housing. The speed tap settings
have been factory selected according to unit size and
performance. Field select taps are provided on the speed
tap board to assist the final installer. The ADJ. tap is
factory set for normal (NORM) operation. Three LED’s
are provided on the speed tap board. These lights indicate to the servicer which mode of operation the motor
is experiencing, that is Heating (W1), Fan Only (G) or
Cooling (Y and G).
Refer to the wiring diagram on the unit to verify speed
tap settings.
21
WARNING
To avoid personal injury or death, always
disconnect electrical power before inspecting or servicing the unit. All compressor protection devices reset automatically, energizing the contactor and
outdoor fan.
Short Cycle Protector (Figure 19)
The short cycle protector is located in the blower compartment. Each time the compressor shuts off for any
reason, the short cycle protector will open. It will take
about 3 to 4 minutes before the short cycle protector will
reset and allow compressor startup to occur.
Figure 18
Fan and Limit Control
All wiring connected to the short cycle protector is 24V.
If the compressor cycles on the short cycle protector
without cycling on any of the other compressor protection devices and before the call for cooling ends, common causes include:
CAUTION
This unit should not be used as a “construction heater” during the finishing
phases of construction on a new structure. This type of use may result in premature failure of the unit due to extremely
low return air temperatures and exposure
to very dirty atmospheres.
• Interruption of the line voltage power.
• Improper thermostat installation, defective thermostat wiring, or defective thermostat.
• Rapid adjustments of the room thermostat.
To Turn Off Unit
1. Set the thermostat to lowest setting.
Short Cycle
Protector
2. Turn off the electrical power supply to the furnace.
3. Remove the right hand door on the front of the furnace by removing screws.
4. Turn the gas control valve knob to the OFF position.
Do not force. See Figure 16.
5. Close manual gas shutoff valve external to the furnace.
6. Replace the door on the unit.
Figure 19
Short Cycle Protector Location
7. If cooling and/or air circulation will be desired, turn
ON the electrical power.
Cooling Startup
Compressor Protection Devices
The PGC and PGB includes components which are designed to protect the compressor against abnormal operating conditions. These include the short cycle protector, external compressor protector (PGC24-42, 60 and
PGB58 only), and high pressure cutout.
These controls reset automatically. Excessive cycling
of the controls should be investigated before continuing
operation.
(NOTE: The operation of the indoor blower will not be
affected by any of the above compressor protection devices.)
22
High Pressure Cutout (Figure 20)
An automatic reset high pressure control is located in
the compressor discharge line. (See Figure 20) This
control protects the unit from excessively high refrigerant pressure.
High pressures can result from:
•
•
•
•
Inoperative outdoor fan motor.
Outdoor coil restricted with debris.
Recirculation of hot condenser air.
Overcharge of refrigerant.
Important Note: Never close the compressor suction
line to test its pumping efficiency. This will seriously damage the compressor and void its warranty.
• The compressor may run backwards (noisy operation) for 1 or 2 seconds at shutdown. This does not
harm the compressor.
• These scroll compressors have copper plated steel
suction tubes. If removal and reconnection becomes
necessary, use silfos with minimum 5% silver or silver braze material with flux.
• Operating pressures and current draws may differ
from standard reciprocating compressors. See Section XV for typical cooling performance data.
Reciprocating Compressor
The PGC48 includes a reciprocating compressor with a
crankcase heater. See the caution for the PGC48 before starting cooling operation.
CAUTION
To avoid severe personal injury or fire,
refrigerant must be removed from both
the low and the high pressure sides of
the system before heat is applied.
Operating Instructions (cooling)
Figure 20
High Pressure Protection Devices
CAUTION
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:
On PGC48 Only: To avoid damage to the
compressor, engage the electrical disconnect switch to the compressor unit
four hours prior to operating air conditioner after the electrical disconnect is off
for a prolonged period of time (during
vacation, etc.). This time lapse allows the
compressor crankcase to attain a proper
operating temperature.
• These scroll compressors include a thermostat (external compressor protector) mounted to the top of
the compressor. THIS PROTECTIVE DEVICE
SHOULD NEVER BE BYPASSED FOR ANY PURPOSE.
• On a scroll compressor, due to its inherent ability to
(NOTE: Mechanical cooling cannot be reliably provided
at ambient temperatures below 50° F. If low ambient
cooling will be required a downflow economizer is available. See Section XIV.)
handle liquid refrigerant, a crankcase heater is not
required.
CAUTION
1. Turn on the electrical power supply to the unit.
2. Place the room thermostat selector switch in the
COOL position (or AUTO if available, and if automatic changeover from cooling to heating is desired).
To avoid severe personal injury or fire,
refrigerant must be removed from both
the low and the high pressure sides of
the system before heat is applied.
• The scroll compressors use white oil which is com-
3. Set the room thermostat to the desired temperature.
patible with 3GS. If the addition of oil in the field is
required, 3GS may be used .
23
When installing a new filter or reinstalling an old one,
always make certain the air flow arrows on the filter point
in the proper direction. If using the unit filter rack, the
airflow arrows must point toward the indoor blower.
XIII. Maintenance
WARNING
To avoid personal injury or death due to
electrical shock, disconnect electrical
power before performing any maintenance.
To inspect the filter in the filter rack, proceed as follows:
1. Disconnect power to the unit.
2. Locate the filter access door (Figure 9) and remove
the four sheet metal screws.
Important Note: Touching the ignitor body with bare fingers, rough handling, or vibration could result in early
ignitor failure. Only a qualified servicer should ever
handle the ignitor.
Have the furnace checked at least once a year before
the heating season begins, to be sure that the combustion air inlet and flue outlet hoods are not blocked by
debris, which would prevent adequate combustion air
and a properly operating vent system.
3. Pull out the filter and inspect. Clean or change as
necessary.
4. Insert the filter into the filter rack channels and lower
into place. Make sure the filter slides completely to
the bottom so no part of the filter is left outside the
back panel.
5. Return the filter access door to its original position
and secure it with the four sheet metal screws.
6. Reconnect the power.
Replacing Or Cleaning Filter
A return air filter is not supplied with this unit; however,
there must be a means of filtering all of the return air.
The filter(s) may be located in the return air duct(s), return air filter grille(s) or in the filter rack in the unit. Consult with your installing dealer for the actual location of
the return air filter(s) for your unit.
Dirty filters are the most common cause of inadequate
heating or cooling performance. Filter inspection should
be made at least every two months; more often if necessary because of local conditions and usage.
Dirty throwaway filters should be discarded and replaced
with a new, clean filter. Dirty permanent filters should be
washed with water, thoroughly dried and sprayed with a
filter adhesive before being reinstalled. (Filter adhesives
may be found at many hardware stores.) Permanent filters should last several years. However, should one
become torn or uncleanable, it should be replaced.
Maintaining Cabinet Finish
Use a fine grade automotive wax on the cabinet finish to
maintain the original high luster. This is especially important in areas with high ultraviolet radiation.
Clean Outside Coil (Qualified Servicer Only)
The coil with the outside air flowing over it should be
inspected annually and cleaned as frequently as necessary to keep the finned areas free of lint, hair and debris.
Blower Motor
The air circulating blower motor bearings are permanently lubricated.
If the installation has the return air filter located in the
unit filter rack and it must be replaced, use the appropriate Amana filter or a permanent filter that is properly
sized as follows:
Model
Amana Part #
PGC24, 30, or 36
PGC42, 48, 60
or PGB58
C4855623
Required Permanent
Filter Size
26" X 20" X 1"
C4855627
32-5/8" X 22-3/8" X 1"
Figure 21
Blower Motor and Housing
(NOTE: Brushless Permanent Magnet (BPM) blower motors are permanently lubricated and do not have oil ports.
Oil cannot be added to these motors.
Induced Draft Motor Lubrication
The induced draft motor is permanently sealed and does
not require additional oiling.
24
Flame Sensor (Qualified Servicer Only)
Under some conditions, the fuel or combustion air supply 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. After cleaning, the microamp
signal should be in the range listed in Table 1A.
Ignitor (Qualified Servicer Only)
If the ignitor and the surrounding air are at about 70° F
and the ignitor wires are not connected to any other electrical components, the resistance of the ignitor should
not exceed 200 ohms. If it does, the ignitor should be
replaced.
Compressor
The compressor motor is permanently lubricated and
hermetically sealed. It does NOT require oiling.
Flue Passages
At the start of each heating season, inspect, and if necessary clean the furnace flue passages.
Cleaning Flue Passages (Qualified Servicer Only)
1. Shut off electric power and gas supply to the furnace.
Figure 22
Induced Draft Motor
2. Remove burner assembly and disconnect the gas
line and remove the manifold brackets from the partition panel.
3. Remove the induced draft blower and the collector
box from the partition panel.
Condenser Fan Motor Lubrication
The condenser fan motor bearings are permanently lubricated and do not require additional lubrication.
4. Remove tube inserts and turbulators from heat ex
changer.
5. The primary heat exchanger tubes can be cleaned
using a round wire brush attached to a length of high
grade stainless steel cable, such as drain cleanout
cable. Attach a variable speed reversible drill to the
other end of the spring cable. Slowly rotate the cable
with the drill and insert it into one of the primary heat
exchanger tubes. While reversing the drill, work the
cable in and out several times to obtain sufficient
cleaning. Repeat for each tube.
6. When all heat exchanger tubes have been cleaned,
replace the parts in the reverse order in which they
were removed.
7. To reduce the chances of repeated fouling of the
heat exchanger, perform the steps listed in Startup
and Adjustment, Section XII.
Figure 23
Removal of Fan Motor
25
Burners
Pressure Drop of Transition Kit
Model
CFM
700
900 1200 1400 1600 1800
PDTROU3A 0.07 0.11 0.19
----------0.06 0.08 0.10
PDTROU5A ---
WARNING
To avoid personal injury or death due
to electrical shock, do not remove any
internal compartment covers or attempt
any adjustment. Contact a qualified servicer at once if an abnormal flame appearance should develop.
Table 6
Transition Kit Pressure Drop
Replacement Parts
1. Refer to the description in Table 7 when ordering any
of the listed functional parts. Be sure to provide the furnace model, manufacturing, and serial numbers with the
order.
At least once a year, prior to or during the heating season, make a visual check of the burner flames.
NOTE: This will involve removing and reinstalling the
right front door on the unit, which is held by several
screws. If you are uncertain about your ability to do
this, contact a qualified servicer.
Gas Valve
Heat Exchanger
Gas Orifice, Natural
Evaporator Coil
Gas Orifice, Propane
Transformer
Burner
Ignitor
Combustion Relay
Flame Sensor
Blower Wheel
Ignition Control
Blower Housing
Fan/Limit Switch
Speed Tap Board (PGC)
If a strong wind is blowing, it may alter the airflow pattern within the furnace enough that an inspection of the
burner flames is not possible.
The inspection of the burner flames must be performed
with the heat shield in place. Only a qualified servicer
should ever remove the heat shield from the manifold
assembly.
For further information on the yearly inspection, consult the User Manual. It is recommended that a qualified servicer inspect and service the unit at least once
each year.
Turn the furnace on at the thermostat. Wait a few minutes, since any dislodged dust will alter the normal flame
appearance. Flames should be predominantly blue and
directed into the tubes. They should not be yellow. They
should extend directly outward from the burner ports
without curling downward, floating or lifting off the ports.
Table 7
Functional Parts List
2. Although only functional parts are shown in Table 7,
all sheet metal parts, doors, etc. may be ordered by description or by referring to the Parts Manual.
XIV. Accessories and Functional
Parts
3. Parts are available from your Amana distributor.
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.
Accessory
Duct Transition Round
Duct Transition Over/Under
Rooftop Curb
Downflow Economizer
Fresh Air Intake
Barometric Relief Hood
50° F Compressor Lockout
Ambient Thermostat Kit
Emergency Heat Relay
Circuit Breaker Kit
Electric Heat Kit
Table 5
Accessory List
Transition Kit
BPM Blower Motor (PGC)
Blower Motor (PGB)
Pressure Switch Hose
Induced Draft Blower
Time Delay Relay
Blower Relay (PGB)
Compressor
Pressure Switch
Contactor
Flame Roll-Out Switch
Condenser Fan Blade
High Pressure Cutout
Condenser Fan Motor
Compressor Time Delay
Condenser Coil
26
XV. Typical Cooling Performance Data
Outdoor
Indoor
PGC24
PGC30
PGC36
Air Temp.
Air
Indoor
Pressure @ Unit
Pressure @ Unit
Pressure @ Unit
Indoor
Indoor
Am ps
Am ps
Am ps
at
Tem p.
Air Temp. Gauge Fittings
Air Temp. Gauge Fittings
Air Temp. Gauge Fittings
Condenser at Evap.
Difference
Difference
Difference
Inlet
Inlet
Betw een
Low
High
Total to Betw een
Low
High
Total to Betw een
Low
High
Total to
(Dry Bulb) (Wet Bulb)
Coil Inlet
Side
Side
Unit
Coil Inlet
Side
Side
Unit
Coil Inlet
Side
Side
Unit
and Outlet
and Outlet
and Outlet
° F.
115
110
105
100
95
90
85
80
75
A
° F.
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
B
° F.
7
12
17
23
7
12
17
23
7
12
18
23
8
12
18
23
C
PSIG
92
91
91
90
91
90
80
89
90
90
89
88
89
89
89
88
D
PSIG
325
324
324
326
308
304
304
304
288
286
286
286
269
269
271
271
E
Am ps
12.8
12.7
12.7
12.8
12.2
12.1
12.1
12.1
11.7
11.6
11.6
11.6
11.1
11.1
11.2
11.2
B
° F.
7
12
17
23
7
12
17
23
7
12
18
23
8
12
18
23
C
PSIG
89
89
88
87
89
88
88
87
88
88
87
86
87
87
86
85
D
PSIG
320
322
322
322
304
303
303
302
285
285
283
282
267
267
267
267
E
Am ps
15.8
15.9
15.8
15.8
15.2
15.1
15.1
15.1
14.5
14.5
14.5
14.4
13.9
13.9
13.9
13.9
B
° F.
7
12
17
23
7
12
17
23
7
12
18
23
8
12
18
23
C
PSIG
88
87
87
86
87
87
86
85
86
86
85
84
86
85
85
84
D
PSIG
351
352
352
352
332
332
331
329
311
310
312
311
293
293
292
290
E
Am ps
19.3
19.4
19.3
19.3
18.5
18.5
18.4
18.4
17.6
17.6
17.6
17.6
16.9
16.9
16.8
16.7
77
8
89
255
10.7
8
87
251
13.4
8
85
275
16.2
72
13
88
251
10.6
13
86
249
13.3
13
85
274
16.1
67
18
88
252
10.7
18
86
249
13.3
18
84
274
16.1
62
23
87
254
10.7
23
85
249
13.3
23
83
274
16.1
77
8
88
237
10.2
8
86
234
12.9
8
84
255
15.4
72
13
88
236
10.2
13
86
232
12.8
13
84
255
15.4
67
18
87
234
10.2
18
86
231
12.8
18
83
256
15.4
62
24
86
235
10.2
24
84
231
12.8
24
83
254
15.4
77
8
87
222
9.8
8
86
217
12.3
8
84
240
14.8
72
13
87
221
9.8
13
85
217
12.4
13
83
238
14.8
67
18
86
221
9.8
18
84
216
12.3
18
83
238
14.7
62
24
86
220
9.8
24
83
216
12.3
24
82
239
14.8
77
8
87
203
9.3
8
85
202
11.9
8
83
224
14.3
72
13
86
203
9.3
13
84
203
12.0
13
83
223
14.2
67
18
86
205
9.4
18
84
202
11.9
18
82
221
14.2
62
24
85
206
9.4
24
83
202
11.9
24
81
221
14.2
77
8
86
189
9.0
8
84
189
11.6
8
83
208
13.7
72
13
86
189
9.0
13
84
189
11.6
13
82
207
13.7
67
19
85
191
9.0
19
83
189
11.6
19
82
207
13.7
62
24
85
190
9.0
24
82
187
11.6
24
81
206
13.6
A Columns - All data based on indoor dry bulb of 80° F and rated air flow. As indoor dry bulb temperature increases, a slight increase will occur in indoor air temperature differential
between inlet and outlet. Low and high side pressures and power will not change.
B Columns - A properly operating unit should be within ±3° F of the typical (dry bulb) value shown.
C Columns - A properly operating unit should be within ±3 PSIG of the typical value shown.
D Columns - A properly operating unit should be within ±7 PSIG of the typical value shown.
E Columns - A properly operating unit should be within ±2 amps of the typical value shown.
Table 8A
27
Outdoor
Air Temp.
at
Condenser
Inlet
(Dry Bulb)
° F.
115
110
105
100
95
90
85
80
75
Indoor
Air
Temp.
at Evap.
Inlet
(Wet Bulb)
A
° F.
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
77
72
67
62
Indoor
Air Temp.
PGC42
Pressure @ Unit
Gauge Fittings
Amps
Indoor
Air Temp.
PGC48
Pressure @ Unit
Gauge Fittings
Amps
Indoor
Air Temp.
PGC60 and PGB58
Pressure @ Unit
Gauge Fittings
Amps
Difference
Between
Coil Inlet
and Outlet
Low
Side
High
Side
Total to
Unit
Difference
Between
Coil Inlet
and Outlet
Low
Side
High
Side
Total to
Unit
Difference
Between
Coil Inlet
and Outlet
Low
Side
High
Side
Total to
Unit
B
° F.
7
12
18
23
8
13
18
23
8
13
18
23
8
13
18
24
8
13
18
24
8
13
19
24
8
13
19
24
8
13
19
24
9
14
19
25
C
PSIG
86
85
85
84
85
85
84
83
84
84
83
82
84
83
83
82
83
82
82
81
82
82
81
80
82
81
81
80
81
81
80
79
80
80
79
79
D
PSIG
332
331
332
332
313
313
312
311
294
293
294
293
277
276
275
274
259
258
257
256
241
241
240
240
226
224
225
223
211
210
211
208
196
196
194
194
E
Amps
23.1
23.1
23.1
23.2
22.2
22.2
22.1
22.1
21.3
21.2
21.3
21.2
20.4
20.4
20.4
20.3
19.6
19.6
19.5
19.5
18.8
18.8
18.8
18.8
18.1
18.1
18.1
18.0
17.5
17.5
17.5
17.4
16.9
16.9
16.8
16.8
B
° F.
8
13
18
24
8
13
18
24
8
13
18
24
8
13
19
24
8
13
19
25
8
14
19
25
9
14
19
25
9
14
20
25
9
14
20
25
C
PSIG
88
88
88
87
88
87
87
86
87
86
86
85
86
86
85
84
85
85
84
84
84
84
83
83
84
83
83
82
83
82
82
81
82
82
81
80
D
PSIG
327
327
327
326
308
308
308
307
291
290
290
290
274
273
273
272
256
257
256
255
240
240
240
239
225
225
224
224
200
210
209
209
196
196
195
195
E
Amps
23.8
23.8
23.8
23.7
23.2
23.2
23.1
23.1
22.5
22.5
22.5
22.4
21.9
21.9
21.8
21.8
21.3
21.2
21.2
21.1
20.6
20.6
20.6
20.5
20.0
20.0
20.0
19.9
19.4
19.4
19.4
19.3
18.8
18.8
18.8
18.8
B
° F.
9
15
21
26
10
15
21
27
10
15
21
27
10
15
21
27
10
16
22
28
10
16
22
28
11
16
22
28
11
16
22
28
11
16
22
28
C
PSIG
83
83
82
81
82
82
81
80
82
81
80
80
81
80
80
79
80
80
79
78
79
79
78
77
79
78
78
77
78
78
77
76
78
77
76
76
D
PSIG
343
342
342
341
323
322
322
321
303
303
303
302
285
285
285
284
268
267
267
266
251
250
250
249
234
234
233
232
218
218
218
217
204
203
203
202
E
Amps
34.9
34.8
34.7
34.6
33.3
33.2
33.2
33.1
31.8
31.8
31.8
31.7
30.5
30.4
30.5
30.4
29.2
29.2
29.2
29.1
28.1
28.0
28.0
27.9
27.0
26.9
26.9
26.8
25.9
25.9
25.9
25.8
25.0
24.9
24.9
24.8
A Columns - All data based on indoor dry bulb of 80° F and rated air flow. As indoor dry bulb temperature increases, a slight increase will occur in indoor air temperature differential
between inlet and outlet. Low and high side pressures and power will not change.
B Columns - A properly operating unit should be within ±3° F of the typical (dry bulb) value shown.
C Columns - A properly operating unit should be within ±3 PSIG of the typical value shown.
D Columns - A properly operating unit should be within ±7 PSIG of the typical value shown.
E Columns - A properly operating unit should be within ±2 amps of the typical value shown.
Table 8B
28
XVI. Wiring Diagram
PGC24 - 36
29
PGC 42
30
PGC 48
31
L
1
I
G
N
32
L1
T1
4
R
Y
G
W
!
CC
CR
FL
7
CR
SEC
LIMIT
NO
T
H
SCP
(230 V)
(208 V)
208
24 V
FAN
OD
ICM
HIGH
PRESS
R1
Y2
S
R
COM
Y1
R2
TAP BOARD
C
PS
GND
R
5
NC
R
S
RL
CC
C
T
R
C
COMB
BLOWER
Y
COMP
8
GAS
VALVE
V
A
L
V
E
WARNING:
DISCONNECT POWER BEFORE SERVICING.
HERM
CAP
COM
FAN
6
230
W
CR
X'FMR
FC
G
3
FLAME
SENSOR
IGNITOR
I
G
N
IGNITION CONTROL
(TERMINAL ORDER REARRANGED)
C
G
N
D
L2
T2
L
2
AIR
CIRCULATION
BLOWER
(ACB)
PGC60B1352A
PGC60B0902A
MODEL NO.
B
A
* HEAT
TAP
A
A
** COOL
TAP
O.D.
FAN
MOTOR
*
**
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(ACB)
LOAD
YL
-4
GY-40
RD-18
OR-8
IGNITOR
OR-15
YL-16
YL-11
RD-12
YL-5
YL-6
YL-7
YL-8
BU-9
GY-1
BU-2
GY-3
HARNESS
DETAIL
G W R
BU-2
FLAME
SENSOR
TAP BOARD
Y
BK-27
BR-11
VT-20
C
VT-37
RD-22
BK-33
RD-23
BR-21
GY-30
OR-49
SEE
HARNESS
DETAIL
FAN LIMIT
CONTROL
IGN
L2
IGN
RS
L1
GND
TH
VALVE
SECONDARY LIMIT
FACTORY WIRED
MOTOR CONNECTIONS
GN-1
RD-1
BK-1
YL-11
(FL)
(FC)
IGNITION
CONTROL
OR-19
FOR PROPER OPERATION ON 208 VOLT THE
FOLLOWING CHANGES MUST BE MADE:
MOVE BK23 AND BK33 WIRES FROM TRANSFORMER
240 TERMINAL TO 208 TERMINAL.
UNPLUG RED COMBUSTION BLOWER LEAD FROM
COMBUSTION RELAY NUMBER 6 TERMINAL.
ATTACH BLACK BLOWER LEAD TO TERMINAL.
TAPE UNUSED RED LEAD.
208 VOLT INSTALLATION
C
A
P
A
C
I
T
O
R
COM
208
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
TAP
BOARD
FAN
HERM
BK-27
RD-19
240
LINE
COM
VT
-47
R
S
BU
!
4
1
BU-29
VT-20
VT-20
GY-40
RD-10
3
5
COMBUSTION
OR
RELAY (CR)
-15
7
OR-16
COM
MUST BE USED.USE COPPER CONDUCTORS ONLY.
4. EQUIPPED FOR 230 VOLT, FOR 208 VOLT SEE
INSTRUCTIONS AT TOP OF THIS DIAGRAM.
L1
BK-13
BU-10
CONTACTOR (CC)
T1
VT(COM)
T2
GY-70
BK-14
BK
(208V)
RD
(230V)
C
COMB
BLOWER
PRESSURE
SWITCH (PS)
GY-80
YL-4
NO NC
READ BEFORE OPERATING OR SERVICING THIS UNIT.
WARNING: DISCONNECT POWER BEFORE SERVICING.
IMPORTANT:
HIGH PRESS
BU
C
2
6
8
COMPRESSOR
1Ø WIRING
RD-10
GY-35
YL-11
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT
AT 0.8 AMPS.
2. AMANA APPROVED REPLACEMENT PARTS MUST BE
USED WHEN SERVICING.
YL
-12
RD-1
GY-25
BK-23
TRANSFORMER
G
R
2
C
RD
-18
RD
-19
BK
-14
GND L2
YL
-3
L1
BK
-1
SHORT CYCLE
PROTECTOR (SCP)
Y1
R1
Y2
R2
TERMINAL
BOARD
ROLLOUT
LIMIT (RL)
GAS
VALVE
RD-1
BR-22
1
M
LOW VOLTAGE
LOW VOLTAGE FIELD
HI VOLTAGE
HI VOLTAGE FIELD
COLOR CODE
YL YELLOW
BR BROWN
OR ORANGE
WH WHITE
VT VIOLET
BU BLUE
GN GREEN
GY GRAY
BK BLACK
RD RED
11160801 REV. 0
FIELD CONNECTION
208/240 VAC 1 Ø
! WARNING:C 1%
DISCONNECT POWER
BEFORE SERVICING
RD BK
-1
-1
VT-37
OR
-8
BU
Y
GND
L2
W
BR-21
GY-20
3
P
PGC 60
L
1
33
4
L1
T1
FR
4
R
CR
1
!
CC
5
FL
*
OD
CC
COMP
C
COMB
BLOWER
ACB
1
H
8
T
R
WARNING:
DISCONNECT POWER BEFORE SERVICING.
S
R
RL
GAS
VALVE
V
A
L
V
E
COM
FR
Y1
R2
FR
CR
SEC
LIMIT
FAN
LO
MED
3
SCP
H
7
NO
T
H
HI
(230 V)
(208 V)
208
24 V
R1
Y2
C
PS
GND
3
5
NC
FC
HERM
CAP
COM
FAN
2 * *
CR
6
230
FD
HIGH
PRESS
3
X'FMR
YDNSO
G
W
R
S
FLAME
SENSOR
IGNITOR
I
G
N
L2
T2
CAP
C
G
N
D
L
2
VT-27O
AIR
CIRCULATION
BLOWER
(ACB)
BK-26 HI
BK-27
BR-11
VT-20
BU-23 MED
RD-24 LO
RD-18
VT-14
BK-33
RD-23
RD-22
*
**
MODEL NO.
3
3
PGB58B135
3
PGB58B115
PGB58B090
MOTOR
SPEEDS
HI
MED
LOW
SPEED
BLACK 26
BLUE 23
RED 24
RD-18 TO MOTOR WIRE
* HEATING BLOWER SPEED
C
A
P
A
C
I
T
O
R
IGNITOR
BK
-23
FAN
HERM
HI
HI
HI
SPEED
VT
-47
BK-23O
4
BLACK 26
BLACK 26
BLACK 26
BL-2 TO MOTOR WIRE
R
S
OR-16
4
VT-20
VT-20
1
BU
3
5
COMBUSTION OR
RELAY (CR)
-15
7
COM
NO NC
C
BU-10
YL-3
BK
-1
VT (COM)
T2
L1
CONTACTOR
(CC)
T1
BK-13O
COMB
BLOWER
BU-29
GY-70
BK-14
BK
(208V)
RD
(230V)
GY-80
PRESSURE
SWITCH
(PS)
READ BEFORE OPERATING OR SERVICING THIS UNIT.
WARNING: DISCONNECT POWER BEFORE SERVICING.
IMPORTANT:
!
RD
-10
2
6
8
HIGH PRESS
BU
COMPRESSOR
1ø WIRING
C
GY
-45
BU-51O
GY-35
YL-11
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT
AT 0.8 AMPS.
2. AMANA APPROVED REPLACEMENT PARTS MUST BE
USED WHEN SERVICING.
3. IF ANY ORIGINAL WIRE IS REPLACED, 105° C WIRE
MUST BE USED.USE COPPER CONDUCTORS ONLY.
4. WIRE NUT AND TAPE UNUSED MOTOR LEADS.
5. EQUIPPED FOR 230 VOLT, FOR 208 VOLT SEE
INSTRUCTIONS AT TOP OF THIS DIAGRAM.
YL
-12
RD-10
2
5
1
RD-1
GY-25
FAN RELAY
(FR)
3
208
LINE
240
COM
BK-27
VT-37
LOAD
COM
TRANSFORMER
** COOLING BLOWER SPEED
BU
-2
GY-40
FLAME
SENSOR
BR-21
GY-30
OR-49
O.D.
FAN
MOTOR
FAN LIMIT
CONTROL
IGN
L2
IGN
RS
L1
GND
TH
VALVE
SECONDARY LIMIT
FACTORY WIRED MOTOR CONNECTIONS
VT-14
BR-25
CAPACITOR
YL-11
(FL)TUTN
(FC)
IGNITION
CONTROL
OR-19
FOR PROPER OPERATION ON 208 VOLT THE
FOLLOWING CHANGES MUST BE MADE:
MOVE BK23 AND BK33 WIRES FROM TRANSFORMER
240 TERMINAL TO 208 TERMINAL.
UNPLUG RED COMBUSTION BLOWER LEAD FROM
COMBUSTION RELAY NUMBER 6 TERMINAL.
ATTACH BLACK BLOWER LEAD TO TERMINAL.
TAPE UNUSED RED LEAD.
208 VOLT INSTALLATION
R2
RD
-41
R
SHORT
CYCLE
PROTECTOR
(SCP)
VT-27
VT-37
OR
-8
G
C
2
GND L2
L1
FIELD CONNECTION
208/240 VAC 1ø
! WARNING:
DISCONNECT
POWER
BEFORE
SERVICING
GY
-45
FAN
TIME
DELAY
(FD)
TERMINAL
BOARD
ROLLOUT
LIMIT
(RL)
GAS
VALVE
RD-1
BR-22
M
1
LOW VOLTAGE
LOW VOLTAGE FIELD
HI VOLTAGE
HI VOLTAGE FIELD
COLOR CODE
YL YELLOW
BR BROWN
OR ORANGE
WH WHITE
VT VIOLET
BU BLUE
GN GREEN
GY GRAY
BK BLACK
RD RED
11161001 REV. 0
R1
Y2
Y1
GND
BU
Y
BU
-51
L2
W
BR-21
GY-20
P
3
1
3
I
G
N
H
H
IGNITION CONTROL
(TERMINAL ORDER REARRANGED)
PGB 58
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