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PG80MSU: Installation, Start-up, Operating and Service and Maintenance Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

17

1. Vent connector is Type-B double-wall, and
2. This furnace is common vented with at least 1 draft hood equipped

appliance, and

3. The  combined  appliance  input  rating  is  less  than  the  maximum

capacity given in 

Table 7

, and

4. The input rating of each space heating appliance is greater than the

minimum  input  rating  given  in 

Table 8

  for  the  local  99% Winter

Design Temperature. Chimneys having internal areas greater than

38 square inches require furnace input ratings greater than the input

ratings of these furnaces. See footnote at bottom of 

Table 8

, and

5. The authority having jurisdiction approves. 

Exterior Masonry Chimney FAN + NAT Installations with Type-B 

Double Wall Vent Connectors ÓNFPA & AGA

Table 7 – Combined Appliance Maximum Input Rating in 

Thousands of BTUh per Hour

Table 8 – Minimum Allowable Input Rating of Space-Heating 

Appliance in Thousands of BTUh per Hour

If all of  these conditions cannot be met,  an alternative venting design

shall be used, a listed chimney-lining system, or a Type-B common vent. 
Inspections before the sale and at the time of installation will determine

the acceptability of the chimney or the need for repair and/or (re)lining.

Refer to the 

Fig. 27

 to perform a chimney inspection. If the inspection of

a previously used tile-lined chimney:

a. Shows signs of vent gas condensation, the chimney should be 

relined in accordance with local codes and the authority having 

jurisdiction. The chimney should be relined with a listed metal 

liner, or a Type-B vent shall be used to reduce condensation. If a 

condensate drain is required by local code, refer to the current 

edition of NFGC NFPA54/ANSI Z223.1, Section 12.10 for 

additional information on condensate drains.

b. Indicates the chimney exceeds the maximum permissible size in 

the tables, the chimney should be rebuilt or relined to conform to 

WARNING

!

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance connected

to the venting system being placed into operation could result in carbon

monoxide poisoning or death. The following steps shall be followed for

each  appliance  connected  to  the  venting  system  being  placed  into

operation, while all other appliances connected to the venting system

are not in operation: 

-

Seal any unused openings in venting system.

-

Inspect the venting system for proper size and horizontal pitch,

as required in the current  edition of  National Fuel Gas  Code,

ANSI Z223.1/NFPA 54 and these instructions. Determine that

there is no blockage or restriction, leakage, corrosion and other

deficiencies, which could cause an unsafe condition.

-

As far as practical, close all building doors and windows and all

doors between the space in which the appliance(s) connected to

the venting system are located and other spaces of the building.

-

Close fireplace dampers.

-

Turn on clothes dryers and any appliance not connected to the

venting system. Turn on any exhaust fans, such as range hoods

and  bathroom  exhausts,  so  they  are  operating  at  maximum

speed. Do not operate a summer exhaust fan.

-

Follow  the  lighting  instructions.  Place  the  appliance  being

inspected into operation. Adjust the thermostat so appliance is

operating continuously.

-

Test  for  spillage  from  draft  hood  equipped  appliances  at  the

draft  hood  relief  opening  after  5  minutes  of  main  burner

operation. Use the flame of a match or candle.

-

If improper venting is observed during any of the above tests,

the  venting  system  must  be  corrected  in  accordance  with  the

current edition of National Fuel Gas Code, ANSI Z223.1/NFPA

54.

-

After it has been determined that each appliance connected to

the  venting  system  properly  vents  when  tested  as  outlined

above, return doors, windows, exhaust fans, fireplace dampers

and  any  other  gas-fired  burning  appliance  to  their  previous

conditions of use.

VENT HEIGHT

FT. (M)

INTERNAL AREA OF CHIMNEY 

IN2 (MM2) 

12

(7741) 

19

(12258) 

28

(18064) 

38

(24516) 

6 (1.8)

74 

119 

178 

257 

8 (2.4)

80 

130 

193 

279 

10 (3.0)

84 

138 

207 

299 

15 (4.5)

NR 

152 

233 

334 

20 (6.0)

NR 

NR 

250 

368 

30 (9.1)

NR 

NR 

NR 

404 

VENT HEIGHT

FT (M)

INTERNAL AREA OF CHIMNEY

IN

2

. (MM

2

)

12

(7741)

19 

(12258)

28 

(18064)

38 

(24516)

Local 99% Winter Design

Temperature: 17 to 26°F

*

 (-8 to -3°C)

*. The 99.6% heating db temperatures table found in the Appendix of the 

Climatic Design Information chapter of the 2017 ASHRAE Fundamentals 

Handbook.

6 (1.8)

0

55

99

141

8 (2.4)

52

74

111

154

10 (3.0)

NR

90

125

169

15 (4.6)

NR

NR

167

212

20 (6.1)

NR

NR

212

258

30 (9.1)

NR

NR

NR

362

Local 99% Winter Design

Temperature: 5 to 16°F

*

 (-15 to -9°C)

6 (1.8)

NR

78

121

166

8 (2.4)

NR

94

135

182

10 (3.0)

NR

111

149

198

15 (4.6)

NR

NR

193

247

20 (6.1)

NR

NR

NR

293

30 (9.1)

NR

NR

NR

377

Local 99% Winter Design

Temperature: -10 to 4°F

*

 (-23 to -16°C)

6 (1.8)

NR

NR

145

196

8 (2.4)

NR

NR

159

213

10 (3.0)

NR

NR

175

231

15 (4.6)

NR

NR

NR

283

20 (6.1)

NR

NR

NR

333

30 (9.1)

NR

NR

NR

NR

Local 99% Winter Design

Temperature: -11°F (-24°C) or lower

Not recommended for any vent configuration.

Summary of Contents for PG80MSU

Page 1: ...NFORMATION GUIDE 40 MODEL NOMENCLATURE 40 To learn more about this appliance and installation via a mobile device go to https www payne com NFC or use the QR code below To access airflow tables or tro...

Page 2: ...se carbon monoxide poisoning explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified service agency local gas supplier or your distri...

Page 3: ...ply ducts carry air circulated by the furnace to areas outside the space containing the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating outside the...

Page 4: ...db Failure to follow these return air temperature limits may affect reliability of heat exchangers motors and controls see Fig 4 For accessory installation details refer to the applicable instruction...

Page 5: ...city firmly touch a clean unpainted metal surface of the furnace again before touching control or wires 5 Use this procedure for installed and uninstalled ungrounded furnaces 6 Before removing a new c...

Page 6: ...ut rating for all gas appliances installed in the space Spaces having less than 50 cubic feet per 1 000 BTUh require the OUTDOOR COMBUSTION AIR METHOD Spaces having at least 50 cubic feet per 1 000 BT...

Page 7: ...ss volume than 50 cubic feet per 1 000 BTUh of the maximum input ratings for all gas appliances installed in the space and 2 The air infiltration rate is not known to be less than 0 40 air changes per...

Page 8: ...ings with unusually tight construction additional air MUST be provided using the methods described in the Outdoor Combustion Air Method section Unusually tight construction is defined as construction...

Page 9: ...own in Fig 13 NOTE It is required that the perforated supply air duct flanges be completely folded over or removed from furnace when installing the furnace on a factory supplied cased coil or coil box...

Page 10: ...Protection Provide a minimum 17 3 4 in x 22 in 451 mm x 559 mm piece of sheet metal for flame roll out protection in front of burner area for furnaces closer than 12 inches 305 mm above the combustibl...

Page 11: ...n a 1 in 25 mm clearance from combustible materials to supply air ductwork for a distance of 36 in 914 mm horizontally from the furnace See NFPA 90B or local code for further requirements Ductwork Aco...

Page 12: ...GC Installations must be made in accordance with all authorities having jurisdiction If possible the gas supply line should be a separate line running directly from meter to furnace NOTE In the state...

Page 13: ...and downstream of manual equipment shutoff valve A02035 Fig 22 Typical Gas Pipe Arrangement Piping should be pressure and leak tested in accordance with NFGC in the United States local and national pl...

Page 14: ...in Step 1 5 Route J Box wires within furnace away from sharp edges rotating parts and hot surfaces WARNING ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warning could result in personal inju...

Page 15: ...ket BX Cable Installation in Furnace J Box 1 Remove cover from J Box 2 Route BX cable into 7 8 inch diameter hole in J Box 3 Secure BX cable to J Box bracket with connectors approved for the type of c...

Page 16: ...sted or draft hood equipped appliances in accordance with the NFGC the local building codes and furnace and vent manufacturers instructions The following information and warning must be considered in...

Page 17: ...in operation Seal any unused openings in venting system Inspect the venting system for proper size and horizontal pitch as required in the current edition of National Fuel Gas Code ANSI Z223 1 NFPA 5...

Page 18: ...condensation and corrosion in the venting system Do not use vent dampers on appliances common vented with this furnace Additional Venting Requirements A 4 101 mm round vent elbow is supplied with the...

Page 19: ...t connector is required refer to Note 1 above 3 Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace except when factory authorized Downflo...

Page 20: ...0 935 875 815 750 690 620 570 520 470 6 1050 995 935 880 820 755 700 645 595 550 7 1130 1075 1020 970 915 855 800 745 690 645 8 1200 1150 1100 1050 1000 945 890 840 785 735 9 1285 1240 1190 1145 1095...

Page 21: ...315 175 3 1035 935 830 745 640 550 460 365 235 140 4 1095 1000 900 815 725 630 545 455 360 240 5 1205 1125 1035 945 870 780 695 620 540 455 6 1290 1210 1125 1040 965 890 805 725 645 570 7 1385 1310 1...

Page 22: ...ct Super Plug available from distributor replacement component for the control board to copy the correct model program onto the new board Further details and instructions for these programming methods...

Page 23: ...Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 23 A221015 Fig 34 3 Digit Display Flow Char...

Page 24: ...to the gas valve if a flame rollout or overheating condition occurs in the gas control area DO NOT bypass the switches Correct inadequate combustion air supply problem before resetting the switches CA...

Page 25: ...e unit rating plate For installation above 2 000 ft 610 M multiply the input on the rating plate by the derate multiplier in Table 14 for the correct input rate A180238 Fig 37 Orifice Hole WARNING FIR...

Page 26: ...door switch f Set thermostat to call for heat g Remove regulator seal cap and turn regulator adjusting screw counterclockwise out to decrease input rate of clockwise in to increase input rate h Instal...

Page 27: ...2 6 2 7 2 8 2 9 850 2 4 2 5 2 6 2 7 to 875 2 3 2 4 2 5 2 5 900 2 2 2 3 2 3 2 4 5000 925 2 1 2 1 2 2 2 3 1524 950 2 0 2 0 2 1 2 2 975 1 9 1 9 2 0 2 0 1000 1 8 1 8 1 9 1 9 U S A Only 725 3 2 3 3 3 4 3...

Page 28: ...U S A Only 725 2 9 3 0 3 1 3 1 750 2 7 2 8 2 9 3 0 5001 775 2 5 2 6 2 7 2 8 1524 800 2 4 2 4 2 5 2 6 825 2 2 2 3 2 4 2 5 to 850 2 1 2 2 2 2 2 3 875 2 0 2 0 2 1 2 2 5400 900 1 9 1 9 2 0 2 1 1646 925 1...

Page 29: ...failure If limit control does not function during this test cause must be determined and corrected a Run furnace for at least 5 minutes b Gradually block off return air with a piece of cardboard or sh...

Page 30: ...es proceed with the following NOTE NO thermostat signal may be present at control and all blower OFF delays must be completed a Leave 115 V power to furnace turned on b Remove outer access door c Remo...

Page 31: ...d dirt and grease from blower wheel and motor annually The inducer and blower motors are pre lubricated and require no additional lubrication These motors can be identified by the absence of oil ports...

Page 32: ...eel wool 0000 grade Do not use sand paper or emery cloth To reinstall igniter and flame sensor 1 Install the Hot Surface Igniter HSI and bracket with igniter gasket into burner assembly 2 Install flam...

Page 33: ...end of spring cable end opposite brush 2 Insert brush end of cable into the outlet opening of cell and slowly rotate with drill DO NOT force cable Gradually insert cable into upper pass of cell see Fi...

Page 34: ...iod the control CPU will open the gas valve relay GVR de energizing the gas valve solenoid GV The control CPU will repeat the ignition sequence for up to three more Trials for Ignition before going to...

Page 35: ...er motor BLWM operation 4 Heat pump When installed with a heat pump the furnace control automatically changes the timing sequence to avoid long blower off times during demand defrost cycles Whenever W...

Page 36: ...lation Start up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 36 TROUBLESHO...

Page 37: ...U Installation Start up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 37 A2...

Page 38: ...Start up Operating and Service and Maintenance Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 38 A221105 Fig 40 T...

Page 39: ...re only furnace is running Firing rate heat content btu cu ft X size of the dial cu ft rev X of rev per 60 sec rev sec X 3600 sec hr Example 1050 btu cu ft X 0 5 cu f t rev X 2 revs 60sec X 3600 sec h...

Page 40: ...ll Cell panel Inducer Group Housing assembly Transducer Inducer motor Inducer wheel TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or a licensed Heating and Air Conditioning company of...

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