Reznor YDSA Unit Installation Manual User Manual
Page 54
Form I-Y, P/N 273646R6, Page 54
9.2 Gas Heat
Section
(cont’d)
DANGER
Safe operation requires proper venting flow. Never bypass the combustion
air proving switch or attempt to operate the heat section without the venter
running and proper flow in the vent system. Hazardous condition could result.
Combustion Air Proving Switch (cont’d)
Combustion Air Switches for Sea Level to 6000 ft. (1830 m)
Heat
Section
Option
Heat
Size(s)
(Btuh)
High Pressure Switch
Low Pressure Switch (AG73 & AG74 Only)
Startup
Cold
Equilibrium
Hot
Setpoint
Off
Label
Color
Switch
P/N
Startup
Cold
Equilibrium
Hot
Setpoint
Off
Label
Color
Switch
P/N
230, 460,
575V
% Full
Speed of
Venter Mtr
208V
% Full
Speed of
Venter Mtr
Negative Pressure (iwc)
Negative Pressure (iwc)
H50
50,000 3.10
2.00
1.50 Yellow 273360
3.50
1.30
0.75
Yellow 205443
74
82
H75
75,000 3.30
1.60
1.40
Red
201159
3.30
1.30
1.00
Brown 201160
74
82
H100 100,000 3.40
1.70
1.40
Red
201159
3.40
1.20
1.00
Brown 201160
74
82
H102* 50,000 3.10
2.00
1.50 Yellow 273360
3.50
1.30
0.75
Yellow 205443
74
82
H125* 50,000
3.10
2.00
1.50 Yellow 273360
(No low pressure switch on this furnace)
75,000 3.30
1.60
1.40
Red
201159
3.30
1.30
1.00
Brown 201160
74
82
H150* 50,000
3.10
2.00
1.50 Yellow 273360
(No low pressure switch on this furnace)
100,000 3.40
1.70
1.40
Red
201159
3.40
1.20
1.00
Brown 201160
74
82
H175* 75,000
3.30
1.60
1.40
Red
201159
(No low pressure switch on this furnace)
100,000 3.40
1.70
1.40
Red
201159
3.40
1.20
1.00
Brown 201160
74
82
H200 200,000 3.80
1.80
1.40
Red
201159
3.80
0.90
0.75
Yellow 205443
42
54
H202* 100,000 3.40
1.70
1.40
Red
201159
3.40
1.20
1.00
Brown 201160
74
82
H300 300,000 3.90
1.90
1.50 Yellow 273360
3.90
0.90
0.75
yellow 205443
48
56
H400 400,000 3.80
1.80
1.50 Yellow 273360
3.80
1.00
0.80
Gray 197078
58
64
H402* 200,000 3.80
1.80
1.40
Red
201159
3.80
0.90
0.75
Yellow 205443
42
54
H502*
200,000 3.80
1.80
1.40
Red
201159
(No low pressure switch on this furnace)
300,000 3.90
1.90
1.50 Yellow 273360
3.90
0.90
0.75
Yellow 205443
48
56
H602* 300,000 3.90
1.90
1.50 Yellow 273360
3.90
0.90
0.75
Yellow 205443
42
56
H702 300,000
3.90
1.90
1.50 Yellow 273360
(No low pressure switch on this furnace)
400,000 3.80
1.80
1.50 Yellow 273360
3.80
1.00
0.80
Gray 197078
58
64
H802 400,000 3.80
1.80
1.50 Yellow 273360
3.80
1.00
0.80
Gray 197078
58
64
G150 150,000 2.70
2.20
1.40
Red
201159
2.70
1.70
0.10
White 234712
61
74
G225 225,000 2.90
2.50
1.40
Red
201159
2.90
1.30
0.10
White 234712
61
74
G300 300,000 2.70
2.50
1.30
White 201161
2.70
0.90
0.10
White 234712
61
74
G302* 150,000 2.70
2.20
1.40
Red
201159
2.70
1.70
0.10
White 234712
61
74
G372* 150,000
2.70
2.20
1.40
Red
201159
(No low pressure switch on this furnace)
225,000 2.90
2.50
1.40
Red
201159
2.90
1.30
0.10
White 234712
61
74
G452* 225,000 2.90
2.50
1.40
Red
201159
2.90
1.30
0.10
White 234712
61
74
G525* 225,000
2.90
2.20
1.40
Red
201159
(No low pressure switch on this furnace)
300,000 2.70
2.50
1.30
White 201161
2.70
0.90
0.10
White 234712
61
74
G602* 300,000 2.70
2.50
1.30
White 201161
2.70
0.90
0.10
White 234712
61
74
9.0 Optional Equipment including Heat Sections (cont’d)
Combustion Air Switches for Above 6000 ft. (1830 m)
Heat
Section
Option
Heat
Size(s)
(Btuh)
High Pressure Switch
Heat
Section
Option
Heat
Size(s)
(Btuh)
High Pressure Switch
Setpoint
Off
Label
Color
Switch
P/N
Setpoint
Off
Label
Color
Switch
P/N
Negative Pressure (iwc)
Negative Pressure (iwc)
H50
50,000
1.45
Orange
273555
H602* 300,000
1.45
Orange
273555
H75
75,000
1.35
Green
273554
H702* 300,000
1.45
Orange
273555
H100
100,000
1.35
Green
273554
400,000
1.45
Orange
273555
H102*
50,000
1.45
Orange
273555
H802
400,000
1.45
Orange
273555
H125*
50,000
1.45
Orange
273555
G150
150,000
1.35
Green
273554
75,000
1.35
Green
273554
G225
225,000
1.35
Green
273554
H150*
50,000
1.45
Orange
273555
G300
300,000
1.25
Blue
273553
100,000
1.35
Green
273554
G302
150,000
1.35
Green
273554