background image

Summary of Contents for PGAD Series

Page 1: ...Signal Words 4 2 Safe Installation Requirements 4 3 Locating the Unit 5 4 Gas Supply and Piping 8 5 Electrical Wiring 11 6 Ductwork 11 7 Economizer 12 8 Start up Procedures 13 9 Operation 14 10 Mainte...

Page 2: ...3 _ _ 12 I 306 _ _ t A 4 102 T 3 4 1 19 25 _ _ _ _ _ l _j 4 1 4I lO8 _ _ _ i E _ _ 12 1 8 308 _ D _ _ H J 14 1 4 363 _ _0_ 12_1 4 I 318 2 i 2 _ I 635 ELECTRICAL POWER _ co o_ T_ _ o _ _ _ _J _ _ _ _ _...

Page 3: ...12 307 G 18 3 4 476 H 18 3 4 476 12 306 J 4 102 K 1 1 1 4 25 31 L 4 1 4 108 M 5 1 4 133 N 12 1 4 311 P 19 483 Q 15 381 R 19 483 S 12 1 4 318 T 16 7 8 429 ROOF CURB for C Chassis 473 8 x 73 DIM _NCHE8...

Page 4: ...de Part 1 Do NOT use this furnace as a construction heater Use only the type of gas approved for this furnace see rat ing plate Do NOT use open flame to test for gas leak Seal supply and return air du...

Page 5: ...NOT install the unit in a location that will permit discharged air from the condenser to recirculate to the condenser inlet I FIGURE 2 Access Panels Access Panels See FIGU RE 2 below for a general vie...

Page 6: ...t MUST be situated to provide safe access for ser vicing The existing roof structure MUST be adequate to support the weight of the unit or the roof MUST be reinforced Check the weight of the unit in r...

Page 7: ...te roof curb NOTE It is the installer s personal responsibility to follow all local codes and ordinances and instructions contained herein as well as instructions included with accessory items when in...

Page 8: ...13 W 0 3230 Pa 13 W C 3230 Pa Pressure Manifold 3 5 W C 870 Pa 10 W C 2490 Pa Pressure Manifold Pressures Manifold pressures are covered in the startup procedure section Refer to Chapter 8 Start Up Pr...

Page 9: ...r orifice sizes Changing Orifices Electrical shock fire and or explosion hazard Shut off electric power at unit disconnect or ser vice panel and shut off gas at manual shut off valve before beginning...

Page 10: ...Provide a 1 8 inch 3mm National Pipe Thread NPT plug for test gauge connection immediately upstream of the gas supply connection to the furnace FIGURE i2 J Proper Piping Practice Control Use moderate...

Page 11: ...cal service panel Line Connections Complete the line service connections to the contactor L termi nals inside the control box Refer to applicable wiring diagram in Technical Support Manual Check all s...

Page 12: ...ulate properly This is the function of the baro metric relief dampers A positive pressure forces the passive ex haust dampers to swing open The fresh air dampers open to the minimum position for outsi...

Page 13: ...adjustment screw cover on gas valve Turn counterclockwise to decrease pressure and clockwise to increase NOTE Adjustment screw cover MUST be placed on gas valve before reading manifold pressure and op...

Page 14: ...ck the following a Contactor contacts opening b Compressor OFF c Condenser fan motor OFF d Circulating blower OFF after a 30 second delay 9 Operation Electrical shock hazard Turn off electric power su...

Page 15: ...tops before shutting off power to unit NOTE If the furnace overheats or fails to shut off turn OFF the manual gas valve for the furnace then wait at least 2 minutes be fore turning off electric power...

Page 16: ...ators should glow orange after about five minutes of operation Main burner flame should be in spected monthly FIGURE Normal Flame Turbulator will glow orange when hot Flame should be stable and solid...

Page 17: ...y damage personal injury and or death 2 3 Remove all screws around rim of unit top except screws which are inaccessible because of proximity to structure Raise unit top at corner of unit closest to bl...

Page 18: ...er wheel If accumulation is excessive on blower wheel or does not easily remove it will be necessary to remove the blower assembly Oil the blower motor by adding 1 2 teaspoonful lcc of SAE 10W30 to ea...

Page 19: ...ee FIGURE 23 9 Hold the burner assembly vertically and lightly tap it against a wood block Clean also with a stiff brush Severe cases of lint clogging may require washing the burners in hot water 10 1...

Page 20: ...N BASE RAL AS SHOWN N DETAIL A USE SSREADER BARS WHEN RGGNG TO PREVENT UNI DAMAGE BE SUR RIGGNG AND SHACKL S ARE SUFFCIENT TO HANDLE WEGHT LS ED BELOW BARS DET AlL A HEIGHT CAB NET B C LENGTH _ WIDTH...

Page 21: ...strainers This Limited Warranty DOES NOT COVER any labor material refractory chambers oit nozzles refrigerant refrigerant inspection and refrigerant reclaiming freight and or handling charges associat...

Page 22: ...A4 CXA4 PGME PYMC PHAD PGAD PA95 PAPC PAK APK To the original purchaser a replacement for 10 years from original date of installation only if the unit is installed with factory matched coiis except ai...

Reviews: