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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
should fail, causing elevated  temperatures at the con-
trol. 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 lo-
cated behind the front center panel on the blower scroll.
(Figure 15).

Secondary Limit

Control

NOTE: Position of Limit Control

Differs From Model to Model.

Figure 15

Position of Limit Control

Reset After Lock-out
Should ignition not be achieved after three tries for any
reason, it will be necessary to reset the electronic igni-
tion 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 fur-
nace may also be reset after lockout by disengaging the
electric disconnect switch to the furnace for thirty sec-
onds.

Operating Instructions (Heating)
NOTE:
 Figure 16 illustrates the proper gas valve mount-
ing location.

Flame Roll-Out

Protector

(Manual Reset)

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 set-

ting.

4. Remove the right hand door on the front of the fur-

nace by removing screws.

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 im-

portant 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.

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 thermo-
stat energizing and burner firing.

Summary of Contents for PGB58B

Page 1: ...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 sup...

Page 2: ...ckout Timing sec 4 4 4 4 4 Flame Sense Current microamps Minimum 1 1 1 1 1 Maximum 6 6 6 6 6 Evaporator Coil Face Area Sq Ft 4 4 4 4 4 Rows Deep 2 2 2 4 4 Fins Inch 16 16 16 12 12 External Filter Size...

Page 3: ...in 24 24 24 24 24 24 CFM 3500 3500 3700 3700 4700 4700 Condenser Fan Motor Horsepower 1 4 1 4 1 2 1 2 1 3 1 3 R L Amps 1 5 1 5 1 5 1 5 2 5 2 5 L R Amps 3 4 3 4 3 6 3 6 6 4 6 4 Blower Motor Horsepower...

Page 4: ...Dia x Width in 11X8 11X8 11X8 Rated CFM Cooling 1750 1750 1750 Max External 0 5 wc 0 5 wc 0 5 wc Combustion Blower Diameter x Width in 4 x 1 25 4 x 1 25 4 x 1 25 No 1 1 1 Condenser Blower Motor H P 1...

Page 5: ...applicable for both vertical and horizontal airflow Table 2B PGB CFM Temperature Rise vs External Static Pressure Table External Static Pressure Inches Water Column Motor 0 1 0 2 0 3 0 4 0 5 0 6 0 7...

Page 6: ...r unit four hours prior to operat ing air conditioner after the electrical dis connect is off for a prolonged period of time during vacation etc This time lapse allows the compressor crankcase to atta...

Page 7: ...the unit to avoid these problems When the unit is heating the temperature of the re turn air entering the unit must be between 50 F and 100 F Ground Level Installations Only When the unit is installe...

Page 8: ...8 Figure 1 Required Clearances For All Installations...

Page 9: ...w 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...

Page 10: ...ssure to a lower pres sure reading than what is specified on the furnace name plate is not a proper derate procedure With a lower den sity of air and a lower manifold pressure at the burner orifice th...

Page 11: ...s 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 Tanks And Piping for Propane Gas Units WA...

Page 12: ...ntacting 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 Propane gas odoran...

Page 13: ...he 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 per...

Page 14: ...Typical Wiring Ground Level Disconnect Switch High Voltage Source High Voltage Entrance Low Voltage Entrance Typical Wiring Rooftop Disconnect Switch High Voltage Source High Voltage Entrance Low Volt...

Page 15: ...8 60 or PGB58 PFK5B1 or PFK5B6 32 5 8 x 22 3 8 x 1 The Amana filter kit includes a permanent filter door label and installation instructions PFK3A1 and PFK5B1 contain filter label and instructions for...

Page 16: ...pliance 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 Clos...

Page 17: ...Combustion Product Purge Ends Air Blower OFF Combustion Blower OFF Figure 12 Timing Chart for Normal Robertshaw Operation PGB PGC Figure 13B PGC Timing Chart for Normal Cooling Operation On Off On Of...

Page 18: ...itioned space PGC Normal Sequence of Operations Cooling See Figure 13B 1 Thermostat calls for cooling The compressor in door fan and outdoor fan are energized 2 Approximately 30 seconds later the indo...

Page 19: ...kout by disengaging the electric disconnect switch to the furnace for thirty sec onds Operating Instructions Heating NOTE Figure 16 illustrates the proper gas valve mount ing location Flame Roll Out P...

Page 20: ...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 ob tained at approximately 10 F With war...

Page 21: ...rd lo cated 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 ins...

Page 22: ...be affected by any of the above compressor protection de vices WARNING To avoid personal injury or death always disconnect electrical power before in specting or servicing the unit All com pressor pro...

Page 23: ...during vacation etc This time lapse allows the compressor crankcase to attain a proper operating temperature NOTE Mechanical cooling cannot be reliably provided at ambient temperatures below 50 F If l...

Page 24: ...death due to electrical shock disconnect electrical power before performing any mainte nance Important Note Touching the ignitor body with bare fin gers rough handling or vibration could result in ear...

Page 25: ...ire oiling Flue Passages At the start of each heating season inspect and if nec essary clean the furnace flue passages Cleaning Flue Passages Qualified Servicer Only 1 Shut off electric power and gas...

Page 26: ...nd 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 sep...

Page 27: ...8 89 255 10 7 8 87 251 13 4 8 85 275 16 2 95 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 23...

Page 28: ...256 21 3 10 80 268 29 2 95 72 13 82 258 19 6 13 85 257 21 2 16 80 267 29 2 67 18 82 257 19 5 19 84 256 21 2 22 79 267 29 2 62 24 81 256 19 5 25 84 255 21 1 28 78 266 29 1 77 8 82 241 18 8 8 84 240 20...

Page 29: ...29 XVI Wiring Diagram PGC24 36...

Page 30: ...30 PGC 42...

Page 31: ...31 PGC 48...

Page 32: ...IGNITION CONTROL L2 IGN IGN L1 RS TH VALVE GND NC NO COM BR 11 BK 27 C W G R Y TERMINAL BOARD YL 12 VT 20 RD 10 BK 33 GND OR 49 BU 10 BR 21 GY 30 RD 23 RD 22 BR 22 GY 70 OR 15 RD 1 CONTACTOR CC T2 T1...

Page 33: ...VT 47 RD 1 GND OR 49 BU 10 BR 21 RD 23 RD 22 BR 22 OR 15 OR 8 BU RD 230V BK 208V H H 3 1 FAN TIME DELAY FD FOR PROPER OPERATION ON 208 VOLT THE FOLLOWING CHANGES MUST BE MADE 208 VOLT INSTALLATION MOV...

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