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Effects of pressure on nozzle flow rate – Thermo Pride MODEL OPA User Manual

Page 82

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All installations and services must be performed by qualified service personnel.

81

IS THE TEMPERATURE

DIFFERENCE BETWEEN SUPPLY

IS STACK TEMPERATURE

DOES FURNACE OPERATE

WITHOUT CONDENSING?

TROUBLE SHOOTING ENDS.

REPEAT PROCEDURE UNTIL TROUBLE FREE OPERATION IS OBTAINED.

Yes

Yes

Yes

Yes

No

No

No

No

Yes

EFFECTS OF PRESSURE ON NOZZLE FLOW RATE

NOZZLE

RATING

AT

100 PSI

NOZZLE FLOW RATES IN

GALLONS PER HOUR (Approx.)

80 PSI 120 PSI 140 PSI

NOZZLE FLOW RATES IN

GALLONS PER HOUR (Approx.)

80PSI 120PSI 140PSI

NOZZLE

RATING

AT

100 PSI

0.45
0.58
0.67
0.76
0.81
0.89
0.99
1.07
1.12

0.55
0.71
0.82
0.93
0.99
1.10
1.21
1.31
1.37

0.59
0.77
0.89
1.00
1.07
1.18
1.30
1.41
1.48

1.35
1.50
1.65
1.75
2.00
2.25
2.50
2.75
3.00

1.21
1.34
1.48
1.57
1.79
2.01
2.21
2.44
2.69

1.48
1.64
1.81
1.92
2.19
2.47
2.74
3.00
3.29

1.60
1.78
1.95
2.07
2.37
2.66
2.96
3.24
3.55

.50
.65
.75
.85
.90

1.00
1.10
1.20
1.25

IS BURNER SET AS INDICATED

IN ABOVE SECTION?

ADJUST BURNER COMBUSTION

TO PRODUCE ZERO SMOKE.

SLOW THE BLOWER SPEED

TO RAISE TEMPERATURE

RISE.

INCREASE LENGTH OF BURNER ON CYCLE

BY RESETTING BURNER PRIMARY CONTROL

DIP SWITCHES FOR A LONGER OFF DELAY.