20
Table 6 – Heating Inputs 208/230 VAC Models
HEATING INPUT
(BTUH)
NUMBER OF
GAS SUPPLY PRESSURE (IN. W.C.)
MANIFOLD PRESSURE
NUMBER OF
ORIFICES
Natural
{
Propane*
{
MANIFOLD PRESSURE
(IN. W.C.)
ORIFICES
Min
Max
Min
Max
Natural
{
Propane*†
40,000
2
4.0
13.0
11.0
13.0
3.2
3.8
10.0
60,000
2
4.0
13.0
11.0
13.0
3.2
3.8
10.0
90,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
115,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
127,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
130,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
*
When a unit is converted to propane, different size orifices must be used. See separate, natural---to---propane conversion kit instructions.
{
Based on altitudes from sea level to 2000 ft (610 m) above sea level. In U.S.A. for altitudes above 2000 ft (610 m), reduce input rating 4 percent for each addi-
tional 1000 ft (305 m) above sea level. In Canada, from 2000 ft (610 m) above sea level to 4500 ft (1372 m) above sea level, derate the unit 10 percent.
Table 7 – Heating Inputs, 460 VAC Models
HEATING
INPUT,
HIGH STAGE
(BTUH)
NUMBER
GAS SUPPLY PRESSURE (IN. W.C.)
MANIFOLD PRESSURE (IN. W.C.)
NUMBER
OF
ORIFICES
Natural
{
Propane*
{
HIGH STAGE
LOW STAGE
ORIFICES
Min
Max
Min
Max
Natural
{
Propane*†
Natural
{
Propane*†
40,000
2
4.0
13.0
11.0
13.0
3.2
3.8
10.0
60,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
90,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
115,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
130,000
3
4.0
13.0
11.0
13.0
3.2
3.8
10.0
*
When a unit is converted to propane, different size orifices must be used. See separate, natural---to---propane conversion kit instructions.
{
Based on altitudes from sea level to 2000 ft (610 m) above sea level. In U.S.A. for altitudes above 2000 ft (610 m), reduce input rating 4 percent for each addi-
tional 1000 ft (305 m) above sea level. In Canada, from 2000 ft (610 m) above sea level to 4500 ft (1372 m) above sea level, derate the unit 10 percent.
577E
Summary of Contents for 577E-A
Page 5: ...5 A190127 Fig 3 577E Unit Dimensions 577E ...
Page 6: ...6 A190128 Fig 4 577E 36 60 Unit Dimensions 577E ...
Page 7: ...7 A150039 Fig 5 577E B36 60 Unit Dimensions 577E ...
Page 21: ...21 A14593 Fig 16 208 230 1 60 Connection Wiring Diagram 577E ...
Page 22: ...22 A14594 Fig 17 Cont 208 230 1 60 Ladder Wiring Diagram 577E ...
Page 23: ...23 A14615 Fig 17 208 230 3 60 Connection Wiring Diagram Gas Inputs 40 60 90 KBtu hr 577E ...
Page 24: ...24 A14616 Fig 18 Cont 208 230 3 60 Ladder Wiring Diagram Gas Inputs 40 60 90 KBtu hr 577E ...
Page 25: ...25 A14618 Fig 18 208 230 3 60 Connection Wiring Diagram Gas Inputs 115 130 577E ...
Page 26: ...26 A14617 Fig 19 Cont 208 230 3 60 Ladder Wiring Diagram Gas Inputs 115 130 577E ...
Page 27: ...27 A13026 Fig 19 460 3 60 Connection Wiring Diagram 577E ...
Page 28: ...28 A13027 Fig 20 Cont 460 3 60 Ladder Wiring Diagram 577E ...
