How to Guide

*G7SC UPFLOW / HORIZONTAL REPLACEMENT PARTS LIST

92.1% AFUE

ITEM DESCRIPTION 038D-23A 054D-24B 072D-24B 072D-35C 090D-35C 108D-45D 120D-45D

1 Door Set 904767 904768 904768 904769 904769 904770 904770

2 Top Panel 2B3551R 2B3552R 2B3552R 2B3553R 2B3553R 2B3554R 2B3554R

3 Burner Assembly 904818 904821 904823 904823 904825 904827 904977

4 Ignitor Assembly - Nitride 921074 921074 921074 921074 921074 921074 921074

5 Igniter Bracket (Not Shown) 299261 299261 299261 299261 299261 299261 299261

6 Inshot Burner 661134 661134 661134 661134 661134 661134 661134

7 Manifold, Burner Tube 664237 664238 664239 664239 664240 664241 664241

8 Oriﬁce, Main Burner, Nat. Gas 661045 661047 661047 661047 661047 661047 661045

9 Flame Sensor 632484 632484 632484 632484 632484 632484 632484

10 Gas Valve 624775 624775 624775 624775 624775 624775 624775

11 Roll-Out Switch 626608 626608 626609 626609 626609 626609 626608

12 Control Board 920915 920915 920915 920915 920915 920915 920915

13 Fuse 632261 632261 632261 632261 632261 632261 632261

14 Heat Exchanger 904786 904869 904788 904870

904871 904791 904791

15 Main Air Limit 626598 626614 626613 626614 626613 626614 626614

16 Inducer Motor 904798 904798 904798 904798 904798 904798 904798

17 Inducer Oriﬁce 669719 669712 669713 669715 669717 Not Used Not Used

18 Inducer Limit 626606 626606 626606 626606 626606 626606 626606

19 Outlet Header Box 904801 904802 904802 904803 904803 904804 904804

20 Pressure Switch (condensate)

632585

632491 632622 632491 632491 632491 632491

21 Pressure Switch (inducer) 632487 632495 632493 632493 632493 632493

22 Transformer 622341 622341 622341 622341 622341 622341 622341

23 Door Switch 632125 632125 632125 632125 632125 632125 632125

24 Blower Assembly 904681 904682 904682 904683 904684 904684 904684

25 Blower Housing Assembly 297200R 294207R 297207R 297204R 297209R 297209R 297209R

26 Capacitor 622599 622545 622545 622549 622549 622549 622549

27 Motor, Blower 904857 904858 904858 904859 904860 904860 904860

28 Wheel, Blower 667251 667258 667258 667207 667280 667280 667280

29 Blower Limit 626611 626611 626611 626611 626611 626611 626611

30 Repl. Motor Mount Kit N/A 904951 904951 904980 904951 904951 904951

31 In-Line Drain Assembly 664435 664435 664435 664435 664435 664435 664435

32 Drain Tube, Soft, 23” (Not Shown) 664434 664434 664434 664434 664434 664434 664434

33 Drain Tube, Hard “J”(Not Shown) 663706 663706 663706 663706 663706 663706 663706

34 Drain Tube, Soft, “J” 30”(Not Shown) 663707 663707 663707 663707 663707 663707 663707

35 Tube, Soft, 6.5” (Not Shown) 663727 663727 663727 663727 663727 663727 663727

36 Hose, High Temperature (Not Shown) 263967 263967 263967 263967 263967 263967 263967

37 Set of Wires (Not Shown) M0036009 M0036003 M0036003 M0036007 M0036007 M0036007 M0036007

38 Finish Flange, Inlet Air 664633 664633 664633 664633 664633 664633 664633

Please specify the correct Model No., Serial No, and part number(s) when ordering parts from the nearest authorized dealer or service center.

FOR

COMPONENT LOCATIONS, SEE PAGE 13.