Effects of pressure on nozzle flow rate – Thermo Pride MODEL OPA User Manual
Page 82
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.