19
3 - MAIN COMPONENTS
Figure 3-6 Main components for models 399 and 500
1 - Leveling feet
2 - Drain valve
3 - Tank sensor well
4 - Electronic anode
5 - 32 gal storage tank with 2” thick thermal insulation “R”= 0,0383 W/mK
6 - Condensate hose coming from heater’s flue exhaust
7 - Condensate discharge hose
8 - Condensate neutralizer box
9 - Water Supply pipe
10 - Heat exchanger (“Burner 1” Master)
11 - Heat exchanger (“Burner 2” Member)
12 - Gas inlet pipe
13 - Air inlet connection
14 - Electrical cable passages
15 - Air filter
16 - 885IF board (optional)
17 - Flue exhaust connection
18 - Electrical terminals
19 - Electrical control board
20 - Flue blocked pressure switch
21 - Control panel
22 - “Burner 2” power control board
23 - “Burner 1” (Master) power control boards
24 - Front cover
25 - Bottom front cover
1
25
14
7
9
9
10
2
17
24
12
11
13
3
5
6
8
15
4
23
18 19
20
22
16
21
1
25
14
7
9
9
10
2
17
24
12
11
13
3
5
6
8
15
4
23
18 19
20
22
16
21
020022.01.001
Summary of Contents for Esteem 399
Page 3: ...3 SAFETY INSTRUCTIONS ...
Page 5: ...5 SAFETY INSTRUCTIONS ...
Page 112: ...112 17 MAINTENANCE ...
Page 116: ...116 19 SPARE PARTS Spare parts ...
Page 135: ......